Consulta: subjectFacets:"Environmental impact"
Registros recuperados: 167
Data/hora: 05/06/2024 08:07:56

Situación socio económica y ambiental de los productores de Acatzingo Puebla por el derrame de hidrocarburo en suelos agrícolas.
Provedor de dados: 32
Autores: Rivera Pineda, Franklin.
En el presente estudio se aborda el siniestro ocurrido en el municipio de Acatzingo,  Puebla en enero del año 2002. El derrame afectó aproximadamente 50 ha de cultivo, con efectos socioambientales, económicos y de producción en familias campesinas del municipio. Para conocer su impacto ocho años después, se encuestaron 159 productores con características socioeconómicas y productivas similares, 80 con terrenos afectados por el siniestro y 79 no afectados directamente, con el propósito de comparar respuestas en el tiempo. El promedio de hectáreas para cultivo por productor es de 1.7 ha con una media de 0.5 a 0.9 ha que les fueron contaminadas. El estudio mostró que 46.3% de los productores afectados opinó que los suelos aún están contaminados pero un 74% de...
Palavras-chave: Contaminación de suelos agrícolas; Cultivo; Campesino; Derrame de hidrocarburos; Desastre natural; Impacto ambiental; Ingresos; Producción; Salud; Contamination of agricultural soils; Farming; Farmer; Oil spill; Natural disaster; Environmental impact; Income; Production; Health; EDAR; Estrategias para el Desarrollo Agrícola Regional; Doctorado.
Ano: 2011
URL: http://hdl.handle.net/10521/657

Evaluación de impacto ambiental por el método Batelle Columbus del túnel de desfogue de la laguna de Metztitlán, Estado de Hidalgo.
Provedor de dados: 32
Autores: Mendoza Cariño, Mayra.
El Distrito de Riego 08 se localiza en la Cuenca de Metztitlán, en la Reserva de la Biósfera de la Barranca de Metztitlán (RBBM) parte Norte. El desbordamiento del río y la laguna Metztitlán ocasionan inundaciones en la zona con una frecuencia de 2.5 años (CNA, 2003). Aunque ya existen dos túneles de desfogue de la laguna al río Almolón, estos son insuficientes pues liberan el agua en más de seis meses por ello, la Comisión Nacional del Agua propone construir un nuevo túnel. El objetivo de esta investigación fue evaluar el impacto ambiental en la biodiversidad de la RBBM con base en las categorías de Ecología y Contaminación del Método Batelle Columbus (MBC), que generará la construcción del túnel de desfogue propuesto para la laguna de Metztitlán, en el...
Palavras-chave: Impacto ambiental; Impacto neto global; Environmental impact; Neat global impact; Maestría; Hidrociencias.
Ano: 2010
URL: http://hdl.handle.net/10521/145

Evaluación de impacto ambiental por el método Batelle Columbus del túnel de desfogue de la laguna de Metztitlán, Estado de Hidalgo.
Provedor de dados: 32
Autores: Mendoza Cariño, Mayra.
El Distrito de Riego 08 se localiza en la Cuenca de Metztitlán, en la Reserva de la Biósfera de la Barranca de Metztitlán (RBBM) parte Norte. El desbordamiento del río y la laguna Metztitlán ocasionan inundaciones en la zona con una frecuencia de 2.5 años (CNA, 2003). Aunque ya existen dos túneles de desfogue de la laguna al río Almolón, estos son insuficientes pues liberan el agua en más de seis meses por ello, la Comisión Nacional del Agua propone construir un nuevo túnel. El objetivo de esta investigación fue evaluar el impacto ambiental en la biodiversidad de la RBBM con base en las categorías de Ecología y Contaminación del Método Batelle Columbus (MBC), que generará la construcción del túnel de desfogue propuesto para la laguna de Metztitlán, en el...
Palavras-chave: Impacto ambiental; Impacto neto global; Environmental impact; Neat global impact; Maestría; Hidrociencias.
Ano: 2010
URL: http://hdl.handle.net/10521/145

Effects of Roads on Animal Abundance: an Empirical Review and Synthesis
Provedor de dados: 7
Autores: Fahrig, Lenore; Carleton University, Geomatics and Landscape Ecology Laboratory, Department of Biology; lfahrig@ccs.carleton.ca; Rytwinski, Trina; Carleton University, Geomatics and Landscape Ecology Laboratory, Department of Biology; trytwins@connect.carleton.ca.
We attempted a complete review of the empirical literature on effects of roads and traffic on animal abundance and distribution. We found 79 studies, with results for 131 species and 30 species groups. Overall, the number of documented negative effects of roads on animal abundance outnumbered the number of positive effects by a factor of 5; 114 responses were negative, 22 were positive, and 56 showed no effect. Amphibians and reptiles tended to show negative effects. Birds showed mainly negative or no effects, with a few positive effects for some small birds and for vultures. Small mammals generally showed either positive effects or no effect, mid-sized mammals showed either negative effects or no effect, and large mammals showed predominantly negative...
Tipo: Peer-Reviewed Synthesis
Palavras-chave: Environmental impact; Landscape connectivity; Mortality; Population density; Road network; Road density; Road effect zone; Road mitigation; Species distribution; Species richness; Traffic density; Traffic volume.
Ano: 2009

Vegetation recovery on a gas-pipeline track along an altitudinal gradient in the Argentinean Yungas forests
Provedor de dados: 67
Autores: Malizia,Agustina; Chacoff,Natacha P; Grau,Héctor R; Brown,Alejandro D.
After one growing season of recovery, vegetation cover and height, species richness, and life forms composition were surveyed in 15 sites located along a gas-pipeline track running through an altitudinal range from 400-2000 m in the subtropical mountains of north-western Argentina (23°S). Vegetation cover was negatively correlated with altitude but was generally high at all sites (&gt; 60%) after one year. Total species richness and maximum vegetation height did not vary significantly with altitude. Cover of grasses, and cover and species richness of trees, small shrubs and climbers were negatively correlated with altitude. Herb species richness correlated positively with altitude. Large shrub richness and cover showed no statistical relationship with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Disturbance; Environmental impact; Life forms; Revegetation; Subtropical montane forest.
Ano: 2004
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1667-782X2004000200008

Anaerobic biodigestion of pigs feces in the initial, growing and finishing stages fed with diets formulated with corn or sorghum
Provedor de dados: 70
Autores: Miranda,Adélia P.; Lucas Junior,Jorge de; Thomaz,Maria C.; Pereira,Gener T.; Fukayama,Ellen H.
The objective of this study was to evaluate the quality and the production of biogas and biofertilizer obtained from biodigester supplied with pig feces in the initial, growing and finishing stages, fed with diets formulated based on corn or sorghum. Twenty bench biodigesters were used with hydraulic retention time of 30 days and daily loads that contained 4 to 6% of total solids (TS) and 3.6 to 5.2% of volatile solids (VS). In the effluent of the biodigesters, mean levels of TS were observed ranging between 1.6 and 2.0% and of VS between 1.2 and 1.6%. The mean reductions of TS were 57.7 to 64.7% and of VS from 61.7 to 69.0%, and there was only difference in the finishing phase, in which the major averages reductions were produced by the biodigesters...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biodigesters; Biogas; Pig feces; Environmental impact.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162012000100006

Roadkilled mammals in the northern Amazon region and comparisons with roadways in other regions of Brazil
Provedor de dados: 76
Autores: Caires,Heloisa S.; Souza,Cleide R.; Lobato,Débora N. C.; Fernandes,Marília N. S.; Damasceno,Júnio S.
ABSTRACT Roadways and road traffic modify landscapes, posing a threat to the conservation of species in different biomes. The aim of the present study was to analyze roadkill records of wild mammals and to compare the results to findings from 37 other studies conducted in Brazil, to evaluate the richness and diversity of threatened species in different eco-regions of the country. This study was conducted between June 2007 and June 2008, along 60 km of the inter-state highway BR-364, which connects the municipalities of Ouro Preto d’Oeste and Presidente Médici in the state of Rondônia (northern Brazil). Two hundred twenty roadkills were recorded involving 13 species of mammals. Cingualata, Pilosa and Carnivora were the most represented orders. The most...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Environmental impact; Habitat fragmentation; Hotspots; Threatened wildlife.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212019000100236

Impact of fish cage-culture on the community structure of zooplankton in a tropical reservoir
Provedor de dados: 76
Autores: Dias,Juliana D; Takahashi,Érica M; Santana,Natália F; Bonecker,Cláudia C.
We investigated the impact of fish cage culture on the zooplankton community structure in a tropical reservoir. We hypothesized that community abundance is greater near cages and increases over time due to the increase in food availability. Samplings were performed near, upstream and downstream from net cages, and before and after net cage installation. The abundance of zooplankton increased 15 days after the experiment was set up, followed by a reduction and finally increased. Rotifer abundance showed significant differences among sites (p&lt;0.05) and sampling periods (p&lt;0.001). Significant differences were also observed in total zooplankton and cladoceran abundance (p&lt;0.001). The spatial and temporal variation of the physical and chemical...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture; Tilapia; Environmental impact.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212011000100011

Prognóstico dos impactos de tecnologias, processos e serviços implementados pela Embrapa Caprinos e Ovinos através do projeto AgroNordeste.
Provedor de dados: 14
Autores: MARTINS, E. C.
Este trabalho busca estimar os impactos potenciais de algumas ações/serviços implementadas pelo Projeto AgroNordeste, no âmbito da ovinocaprinocultura na Região Nordeste e, em extensão, no Brasil. Para tanto, e se baseia na proposta piloto elaborada por um grupo de pesquisadores da Embrapa com o intuito de subsidiar o processo de seleção de projeto de P&amp;D. Assim, realizadas avaliações ex-ante dos impactos de ações desenvolvidas pelo AgroNordeste, abordando-se um enfoque multidimensional nos quais são analisados os impactos ambiental, econômico, social, institucional e de consumo. O processo fornecerá subsídios para uma melhor gestão do projeto e de seus resultados, além de valorizar os impactos gerados pelas tecnologias da Embrapa, assim como, também,...
Tipo: Folhetos
Palavras-chave: Appropriate technology; Diffusion of research; Projeto AgroNordeste; Brasil; Transferência de Tecnologia; Difusão de Tecnologia; Tecnologia Apropriada; Impacto Econômico; Impacto Ambiental; Impacto Social; Technology transfer; Social impact; Economic impact; Environmental impact; Brazil.
Ano: 2021
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1137613

Avaliação de impactos socioambientais de tecnologias na Embrapa.
Provedor de dados: 14
Autores: RODRIGUES, G. S.
Resumo: Entre os processos do Sistema Embrapa de Gestão, explicitados anualmente no Balanço Social institucional, uma plataforma metodológica de referência é indicada para que as Unidades de Pesquisa analisem o desempenho e relatem os impactos econômicos, ambientais e sociais de inovações tecnológicas selecionadas, com base em levantamentos de dados em campo junto aos produtores rurais adotantes e outros usuários dessas tecnologias. Compõe- se, assim, uma relevante base de dados para análise crítica dos resultados da pesquisa, para a gestão dos processos de transferência e para a definição de demandas complementares de desenvolvimento tecnológico. O presente texto revisa o papel dessa plataforma de avaliação de impactos, o aprendizado institucional sobre o...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Avaliação de impacto; Embrapa; New technology; Tecnologia agrícola; Impacto ambiental; Impacto social; Pesquisa agrícola; Environmental assessment; Social impact; Environmental impact.
Ano: 2015
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1020852

Caracterização da qualidade da água na área de proteção de manancial Mestre D'Armas, Distrito Federal (2009).
Provedor de dados: 14
Autores: SOUSA, S. R.; AQUINO, F. de G.; OLIVEIRA FILHO, E. C. de; MUNIZ, D. H. de F.; CRUZ, C. J. D. da; VARGAS, L. M. P.
bitstream/item/78123/1/p2009-020.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Federal District.; Água; Impacto Ambiental; Qualidade.; Brazil; Environmental impact; Water quality.
Ano: 2009
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/737086

Problemas agroambientais e perspectivas sociológicas: uma abordagem exploratória.
Provedor de dados: 14
Autores: QUIRINO, T. R.; ABREU, L. S. de.
Ação humana, organização social e ecológica; Surgimento dos problemas e movimentos ecológicos; O débito da agricultura nos problemas ambientais reconhecidos; A procura da agricultura por novos caminhos; Resposta das ciências sociais aos problemas ecológicos: entre paradigmas antropocêntricos e ecocêntricos.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Cultura social; Meio ambiente; Ecologia; Agricultura; Impacto ambiental; Sociologia rural; Environment; Ecology; Agriculture; Environmental impact; Rural sociology.
Ano: 2000
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/631411

Agricultura e qualidade da agua: contaminacao da agua por nitrato.
Provedor de dados: 14
Autores: RESENDE, A. V. de.
bitstream/CPAC-2009/24718/1/doc_57.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Contamination; Health.; Contaminação; Fósforo; Impacto Ambiental; Nitrogênio; Poluição da Água; Saúde.; Recurso Hídrico; Qualidade da Água; Environmental impact; Eutrophication; Nitrates; Nitrogen; Phosphorus; Water resources.; Water quality; Water pollution.
Ano: 2002
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/546464

Challenges to ensuring good health and well-being.
Provedor de dados: 14
Autores: PORTO, D. D.; KIILL, L. H. P.
Premature mortality due to chronic non-communicable diseases; Contamination of people and the environment through agricultural activities; Reference standards for food safety; Increasing food nutritional quality.
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Mortalidade prematura; Bem estar; Saúde; Produção Agrícola; Meio Ambiente; Segurança Alimentar; Alimento; Environmental impact; Food safety.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1129106

Perdas de solo na Bacia do Alto Taquari.
Provedor de dados: 14
Autores: GALDINO, S.; RISSO, A.; SORIANO, B. M. A.; VIEIRA, L. M.; PADOVANI, C. R.; POTT, A.; MELO, E. C.; ALMEIDA JÚNIOR, N. de.
A bacia do alto Taquari - BAT, com 28.452 km2, apresenta sérios problemas de erosão hídrica de solos. A avaliação dos processos erosivos na BAT possibilitara orientar futuras intervenções visando minimizar a erosão nessa região e consequentemente os seus graves reflexos sobre o Pantanal. A perda de solo na BAT em 1994 foi avaliada utilizando-se a Universal Soil Loss Equation - USLE. A erosividade anual das chuvas média foi de 7.914,3 Mj mm ha-1 ano-1. A erodibilidade média dos solos foi de 0,0356 t h Mj-1 mm-1. O fator topográfico (LS) foi o que apresentou maiores variações. O potencial de perda de solo médio foi de 555,6 t ha-1 ano-1. Em 1994, 41,97% da BAT estava recoberta por vegetação nativa, as pastagens cobriam 51,85% e a soja era cultivada em 5,89%...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Impacto sócio-econômico; Bacia do Alto Taquari; Erosion; Socioeconomic impact; Taquari river basin.; Erosão; Impacto Ambiental; Solo.; Pantanal; Environmental impact; Soil.
Ano: 2003
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/811022

Impactos ambientais da transição entre a produção de leite bovino convencional para orgânico na Região Integrada de Desenvolvimento do Distrito Federal e Entorno (RIDE/DF).
Provedor de dados: 14
Autores: SOARES, J. P. G.; SOUSA, T. C. R. de; MALAQUIAS, J. V.; RODRIGUES, G. S.; BORBA JÚNIOR, J. K. F. de.
bitstream/item/140945/1/bolpd-324.pdf
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Leite orgânico; Sistema orgânico; Family farming; Organic milk; Organic system.; Agricultura Familiar; Impacto Ambiental; Produção Orgânica.; Environmental impact; Milk; Organic production.
Ano: 2015
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1039420

Manejo integrado de plantas invasoras na agricultura orgânica.
Provedor de dados: 14
Autores: FONTES, J. R. A.; SHIRATSUCHI, L. S.
ABSTRACT: Mankind has explored the natural resources, with recorded examples of disasters through its history. Plants have been used as medicine for containing substances to prevent or cure diseases. In contradiction the advance in agriculture has threatened many species before they are known. Since our ancestors the continuous technological development has produced wonderful benefits from plants and animals even in hostile environments as in the semiarid Brazilian Caatinga. Exploitation of soil and water occurs at never seen rates, associated with industrialized inputs continuously growing. Organic agriculture has gained promience as an a alternative even trough its causes impact. Integrated weed management (IWM) can contribute to reduce negative...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Planta daninha; Management; Integrated control; Agronomic characters; Organic farming.; Agricultura Orgânica; Alelopatia; Características Agronômicas; Controle Integrado; Controle Biológico; Impacto Ambiental; Manejo.; Environmental impact; Weed control; Weeds.
Ano: 2003
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/567045

Áreas críticas nas porções de recarga do Aquífero Guarani localizadas nas nascentes do Rio Araguaia.
Provedor de dados: 14
Autores: GOMES, M. A. F.; FILIZOLA, H. F.; PAULA, M. M. de; DIOGO, A.; CERDEIRA, A. L.
O presente trabalho tem por objetivo apresentar os dados de reconhecimento e de seleção de áreas de recarga visualmente mais críticas do Aquífero Guarani, localizadas no município de Mineiros, GO, dentro da porção noroeste da Bacia Sedimentar do Paraná. Os locais selecionados serão objeto de estudo do projeto denominado "Uso agrícola das áreas de recarga do Aquífero Gurani e implicações na qualidade da água subterrânea", principalmente no que se refere à caracterização de áreas que oferecem maior risco de ocntaminação (potencial e efetivo) para a água subterrânea, à partir das atividades agrícolas, como também do projeto intitulado "Recuperação ambiental das nascentes do Rio Araguaia.
Tipo: Folhetos
Palavras-chave: Aquífero; Área de recarga; Agricultura; Impacto ambiental; Agrotóxico; Desmatamento; Erosão do solo; Agriculture; Environmental impact; Pesticides; Deforestation; Soil erosion.
Ano: 2000
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/963895

Mariposas (Lepidoptera) como indicadoras de mudancas ambientais.
Provedor de dados: 14
Autores: CAMARGO, A. J. A. de.
bitstream/CPAC-2009/24164/1/p2002_51.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Monitoramento; Brasil; Insect.; Biodiversidade; Cerrado; Impacto Ambiental; Inseto; Lepidóptero.; Brazil; Environmental impact; Biodiversity; Monitoring.
Ano: 2004
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/567473

Atributos físicos e químicos de área degradada tratada com lodo de esgoto .
Provedor de dados: 14
Autores: SOUZA, M. D. de; LIGO, M. A. V.; SKORUPA, L. A.; PIRES, A. M. M.; FILIZOLA, H. F.
Resumo: O lodo pode fornecer às plantas, em quantidades satisfatórias, com exceção do potássio, todos os nutrientes essenciais para as culturas. A composição química do lodo é de suma importância na recomendação da quantidade a ser aplicada no solo. As recomendações são normalmente baseadas no teor de nitrogênio levando-se em consideração as concentrações de metais pesados presentes na massa de lodo, além da presença de patógenos. Assim, o conhecimento da taxa de mineralização do N orgânico é um dos principais fatores que determinam a quantidade de lodo a ser aplicada no solo. Apesar das vantagens do uso de lodo de esgoto para recuperar áreas degradadas, como apontado pela avaliação de outras variáveis neste estudo, deve ser salientado o inconveniente...
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Lodo de esgoto; Área degradada; Código florestal; Solo; Adubo de esgoto; Recuperação do solo; Impacto ambiental; Nitrato; Poluição da água; Sewage sludge; Land restoration; Environmental impact.
Ano: 2011
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/908169

Mudança de cobertura e uso do solo no leste acreano e seus impactos.
Provedor de dados: 14
Autores: SALIMON, C. I.; AMARAL, E. F. do; ANDERSON, L. O.; SILVA JUNIOR, C. H. L.; BROWN, I. F.
O sudoeste da Amazônia era, até a metade do século 20, predominantemente coberto por uma floresta ombrófila dominada por bambus, com manchas de floresta ombrófila densa. Devido a diversos fatores sócio-econômicos e ondas de ocupação, a região foi sendo transformada e hoje somente 29% do leste acreano apresenta cobertura florestal nativa. Esta mudança de cobertura do solo tem implicações diretas em vários aspectos que vão desde a conservação da biodiversidade, utilização sustentável de recursos naturais e também na prestação de serviços ecossistêmicos, como precipitação e temperatura atmosférica. A fragmentação da paisagem chegou ao seu ponto atual, onde tem-se que metade da floresta remanescente encontra-se sob efeito de borda (a menos de 120 m da borda),...
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Fragmentação florestal; Cambio de uso de la tierra; Plantas de cobertura; Deforestación; Fragmentación de hábitats; Granjas de demostración; Reservatorios de carbono; Fazenda Experimental Catuaba; Universidade Federal do Acre; Rio Branco (AC); Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental.; Cobertura do Solo; Uso da Terra; Desmatamento; Impacto Ambiental; Campo Experimental; Carbono; Estoque.; Land use change; Ground cover plants; Deforestation; Environmental impact; Habitat fragmentation; Demonstration farms; Carbon sinks.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128541

Sistema de produção agrossilvipastorial para a região de caatinga - SAF: avaliação dos impactos econômicos, sociais e ambientais.
Provedor de dados: 14
Autores: MARTINS, E. C.; GUIMARÃES, V. P.; SILVA, N. L. da.
bitstream/CNPC-2010/23041/1/cot110.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: SAF's; Sistema agrossilvipastoril; Sustentabilidade; Inovação tecnológica; Tecnologia social; Semiárido; Brasil; Ceará; Agrosilvopastoral systems.; Sistema de produção; Produção animal; Caatinga; Impacto ambiental; Impacto social; Impacto econômico; Environmental impact; Semiarid zones; Brazil.
Ano: 2009
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/748067

Efeitos de moluscicidas e poluentes ambientais sobre a reproducao e o desenvolvimento de caramujos aquaticos.
Provedor de dados: 14
Autores: OLIVEIRA FILHO, E. C.; GRISOLIA, C. K.; PAUMGARTTEN, F. J. R.
bitstream/CPAC-2009/24321/1/p2003_09.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: TOXCOL100; Noxious molluscs.; Caramujo; Impacto Ambiental; Molusco Nocivo; Moluscicida; Organismo Aquático; Reprodução; Toxicologia.; Biomphalaria; Aquatic organisms; Environmental impact; Reproduction; Toxicology.
Ano: 2004
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/567622

Estudo dos processos erosivos na Bacia do Rio Grande (BA) como subsidio ao planejamento agroecologico.
Provedor de dados: 14
Autores: ANDRADE, A. C. de; LEAL, L. R.; GUIMARAES, R. F.; CARVALHO JUNIOR, O. A. de; MARTINS, E. de S.; REATTO, A.
bitstream/CPAC-2009/24832/1/bolpd_63.pdf
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: ECOSOL220; Geoprocessamento; Erosion; Geoprocessing.; Agricultura; Cerrado; Ecologia Vegetal; Erosão do Solo; Impacto Ambiental; Modelo Matemático; Planejamento; Solo.; Agriculture; Environmental impact; Mathematical models; Plant ecology; Planning; Soil.
Ano: 2002
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/567796

Clareiras correlacionadas com o impacto da extração madeireira em floresta de terra firme na Amazônia ocidental - estudo preliminar.
Provedor de dados: 14
Autores: LEITE, A. M. C.; SILVA, J. A. da; FREITAS, J. V. de; ROSSI, L. M. B.; AZEVEDO, C. P. de; FARACO JÚNIOR, J. H.; ELDIK, T. van.
Informacoes tecnicas sobre o impacto ambiental proveniente da extracao de madeiras por meio do manejo realizado pela empresa Mil-Madeireira Itacoatiara Ltda, em Itacoatiara-AM (Brasil).
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Brasil; Amazonas; Itacoatiara.; Extração da Madeira; Floresta Tropical Úmida; Impacto Ambiental.; Environmental impact; Logging; Tropical rain forests; Wood.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/668655

Regeneração natural do mogno (Swietenia macrophylla King) em área manejada na Amazônia Sul-Ocidental.
Provedor de dados: 14
Autores: BARROS, Q. S.; OLIVEIRA, M. V. N. d'; OLIVEIRA, L. C. de.
Esta publicação teve como objetivo estudar a dinâmica da regeneração natural da Swietenia macrophylla em uma unidade de produção anual (UPA), na área de manejo florestal da Floresta Estadual do Antimary, Acre, tendo como enfoque verificar se as alterações promovidas pela exploração florestal provocaram mudanças significativas no estabelecimento da regeneração natural da espécie nos diferentes ambientes estudados, além disso, está de acordo com os Objetivos de Desenvolvimento Sustentável (ODS).
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Manejo florestal; Unidade de conservação; Unidade de produção anual (UPA); Floresta Estadual do Antimary; Objetivos de Desenvolvimento Sustentável (ODS); Madera tropical; Regeneración natural; Explotación forestal; Silvicultura sustentable; Bujari (AC); Sena Madureira (AC); Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Essência Florestal; Mogno; Swietenia Macrophylla; Regeneração Natural; Exploração Florestal; Impacto Ambiental; Operação Florestal; Agricultura Sustentável; Tropical wood; Natural regeneration; Forest management; Logging; Environmental impact; Sustainable forestry.
Ano: 2019
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1112122

Modelo PestLCI: parametrização para os cenários brasileiros de produção agrícola.
Provedor de dados: 14
Autores: BARIZON, R. R. M.; MATSUURA, M. I. da S. F.; SCACHETTI, M. T.; SILVA, G. B. S. da; COSTA, M. P.; GAROFALO; LANES, V. F. de; PICOLI, G.; PIGHINELLI, A. L. M. T.; MORANDI, M. A. B.
Resumo: Diversas metodologias têm sido utilizadas para avaliar os impactos dos pesticidas utilizados na agricultura. O PestLCI Consensus v.1.0, ferramenta apresentada neste trabalho, traz contribuições para a estimativa de emissões de pesticidas em processos agrícolas, para a elaboração de inventários para estudos de avaliação do ciclo de vida (ACV), de gestão ambiental, que tem sido aprimorada para incorporar os potenciais impactos desses compostos em sistemas de produção agropecuários. Além da apresentação do PestLCI, este trabalho objetiva também parametrizar cenários de produção agrícola relevantes para o Brasil. Com isso, espera-se o aprimoramento dos estudos de ACV que abordem os possíveis impactos dos pesticidas sobre a saúde humana e meio ambiente.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Avaliação do ciclo de vida; Agrotóxico; Pesticida; Impacto Ambiental; Águas Superficiais; Águas Subterrâneas; Solo; Ar; Pesticides; Environmental impact; Molecular dynamics; Groundwater; Surface water; Life cycle assessment; Air.
Ano: 2021
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1134598

Aquicultura: manejo e aproveitamento de efluentes.
Provedor de dados: 14
Autores: SILVA, M. S. G. M. e; LOSEKANN, M. E.; HISANO, H.
Resumo: O trabalho aborda inicialmente o panorama atual da aquicultura mundial, enfatizando o crescimento da produção da ordem de 3,2% no período de 1961-2009, e da brasileira, na qual houve um incremento de 40% nas atividades aquícolas continentais durante os anos 2008-2010. No entanto, esta evolução numérica nem sempre foi acompanhada de práticas de manejo sustentáveis dos efluentes gerados, o que compromete a qualidade da água. Com o propósito de orientar na gestão sustentável da água utilizada nas atividades aquícolas, bem como dos resíduos gerados, são apresentados métodos de tratamento da água usada na produção, notadamente os naturais, como os biofiltros e aplicação de efluentes no solo (fertirrigação). A aquaponia ? integração da aquicultura com a...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Efluentes; Hidroponia.; Aquicultura; Impacto ambiental; Desenvolvimento sustentável; Piscicultura; Qualidade da água; Tratamento da água.; Aquaculture; Fish culture; Effluents; Environmental impact; Water quality; Aquaponics.
Ano: 2013
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/972692

Potencial de impacto da agricultura sobre os recursos hídricos na região do cerrado.
Provedor de dados: 14
Autores: OLIVEIRA-FILHO, E. C. de; LIMA, J. E. F. W.
bitstream/CPAC-2009/24492/1/doc_56.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Contamination; Chemicals; Agricultural chemicals.; Agrotóxico; Cerrado; Contaminação; Fertilizante; Impacto Ambiental; Produto Químico; Poluição da Água; Recurso Hídrico; Qualidade da Água; Toxicologia.; Fertilizers; Environmental impact; Toxicology; Water resources.; Water quality; Water pollution.
Ano: 2002
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/567742

Ocorrência e impactos do mexilhão dourado (Limnoperna fortunei, Dunker 1857) no Pantanal Mato-Grossense.
Provedor de dados: 14
Autores: OLIVEIRA, M. D. de.
O mexilhão dourado, Limnoperna fortunei (Dunker, 1857) é uma espécie originária dos rios da China, trazido para a América do Sul na "água de lastro" dos navios (utilizada como peso para dar maior estabilidade nas manobras) que fazem o comércio entre países asiáticos e a Argentina. Foi registrado em 1991 na foz do rio da Prata. Nos últimos anos têm se expandido rapidamente na bacia do rio da Prata, segunda maior bacia fluvial da América do Sul, formada principalmente pelos rios Paraguai e Paraná. Esta bacia é um importante elo de ligação entre os países da América do Sul, integrados através da hidrovia Paraguai-Paraná. O tráfego de embarcações entre Argentina e o Brasil é o principal vetor na dispersão do mexilhão dourado, transportado fixo nos cascos das...
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Mexilhão dourado; Mato Grosso do Sul; Limnoperna fortunei.; Impacto Ambiental.; Pantanal; Environmental impact; Wetlands.
Ano: 2003
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/794369

Impacto do sedimento sobre o desenvolvimento do perifíton no Rio Taquari, Pantanal, MS.
Provedor de dados: 14
Autores: OLIVEIRA, M. D. de; RODRIGUES, L.
As macrófitas aquáticas são muito abundantes em áreas alagadas como as do Pantanal, e fornecem um vasto substrato para a microbiota, em particular para a comunidade perifítica. Foi avaliado o efeito da deposição de sedimento sobre a comunidade perifítica ao longo de 40km do trecho final do rio Taquari, em 12 estações de amostragem, em setembro de 1998. Foram coletados pecíolos de Eichhornia azurea, raspados e filtrados para análise da biomassa perifítica (clorofila a e peso seco). Foram tomadas amostras de raízes, caules e folhas da macrófita para análise do sedimento aderido. E as características da água também foram estudadas. Do sedimento suspenso analisado, 55% foi depositado até a última estação, e 86% é de origem inorgânica. A transparência da água...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Deposição; Macrófita aquática; Rio Taquari; Sediment; Deposition; Aquatic macrophyte; Aquatic plant; Taquari river; Wetland.; Impacto Ambiental; Perifiton; Planta Aquatica; Sedimento.; Pantanal; Environmental impact; Periphyton.
Ano: 2002
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/810756

Bioensaios de toxicidade genética com plantas superiores Tradescantia (MCN e SHM), milho e soja.
Provedor de dados: 14
Autores: RODRIGUES, G. S.
A avaliação da toxicidade genética presente em certas situações ambientais e de compostos selecionados é uma área de crescente interesse em ecotoxicologia. Neste trabalho, são descritos quatro bioensaios vegetais de interesse para avaliação de genotoxicidade in situ em ambientes agrícolas. O ensaio do micronúcleo em célula mãe do pólen de Tradescantia (Trad-MCN) é um teste de clastogênese extremamente sensível, de exposição curta (desde apenas 6 horas) e avaliação simples. O ensaio do pelo estaminal (Trad-SHM) B um teste de mutação pontual, no qual se observa alteração de cor nas células do estame. A avaliação é simples, mas laboriosa. O bioensaio do pólen ceroso em milho tem como principal vantagem a sua potência estatística, já que, literalmente,...
Tipo: Folhetos
Palavras-chave: Toxicidade; Ecotoxicologia; Bioensaio; Monitoramento ambiental; Pesticide; Soybean; Agrotóxico; Milho; Soja; Mutação; Toxidez; Genética; Environmental impact; Mutagenesis; Tradescantia; Corn; Bioassays.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/964416

II Plano diretor: Embrapa Meio Ambiente: 2000-2003.
Provedor de dados: 14
Autores: EMBRAPA MEIO AMBIENTE.
Sumário: Contextualização: visão de futuro; A agricultura brasileira; As questões ambientais da agricultura; Diagnostico e gestão ambientais; Relações interinstitucionais; Modelo orientador da Embrapa Meio Ambiente; Missão, visão e valores; Negócio; Mercado; Produtos; Clientes; Parceiros; Objetivos; Objetivos técnico-programáticos; Objetivos de apoio técnico e administrativo; Objetivos organizacionais e institucionais; Metas; Metas Técnico-Científicas; Metas administrativas; Diretrizes estratégicas; Pesquisa e desenvolvimento (P &amp; D); Transferência de conhecimento e tecnologia; Valorização dos recursos humanos; Modelo institucional e sistema de gestão; Projetos estruturantes; Comunicação em meio ambiente e agricultura; Negócios tecnológicos na...
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Desenvolvimento; Development; Environments.; Planejamento estratégico; Planejamento de pesquisa; Agricultura; Impacto Ambiental; Meio Ambiente; Pesquisa; Planejamento.; Agriculture; Environmental impact; Research.; Planning.
Ano: 2000
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1050975

High performance liquid chromatographic screening and gas chromatography-nass spectrometry confirmation of tebuthiuron residues in drinking water.
Provedor de dados: 14
Autores: BONATO, P. S.; LANCHOTE, V. L.; DREOSSI, A. de C.
Tebuthiuron (N-[5-(1,1-dimethylethyl)-1,3,4-thiadiazol-2-yl]-N,N-dimethylurea) is a phenylurea herbicide used in sugar cane culture for the pre- and post-emergence control of weeds [1,2]. Analysis of tebuthiuron (Figure 1) and of other phenylurea herbicides in environmental samples can be performed by HPLC [3-10], or by gas chromatography using selective detectors such as nitrogen-prosphorus detector (NPD), eletron-capture detector (ECD), or a mass spectrometer (MS) [11-16]. Although Loh et al [17] reported that the use of temperatures above 280oC permits quantitative tebuthiuron breakdown, thus permitting the analysis of the products of decomposition formed, methods based on gas chromatography usually involve a derivatization step to permit analysis of...
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Analysis; Contamination; Residues; Calibration; Environmental impact; Groundwater; Herbicides; Quality control.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/13136

PRODUÇÃO integrada do feijoeiro comum: programa 22: Centro-Oeste/Sudeste.
Provedor de dados: 14
O Prosa Rural desta semana fala sobre a produção integrada do feijoeiro-comum. Você saberá como o produtor de feijão pode melhorar seu rendimento a partir da adoção do sistema integrado. A pesquisadora Flavia Barbosa, da Embrapa Arroz e Feijão, dá mais detalhes sobre a implementação do sistema de produção integrada na cultura do feijão, de maneira simples e fácil de entender. Os principais objetivos são: a redução de custos com insumos e fertilizantes e a diminuição dos impactos ambientais.
Tipo: Prosa Rural (INFOTECA-E)
Palavras-chave: Feijão; Produtor; Rendimento; Insumo; Fertilizante; Impacto Ambiental; Beans; Environmental impact; Yields.
Ano: 2018
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1092819

Metodologia de avaliação de impactos econômicos, sociais e ambientais para indicações geográficas: o caso do Vale dos Vinhedos.
Provedor de dados: 14
Autores: MELLO, L. M. R. de; ZACKIEWICZ, M.; BEZERRA, L. M. C.; TONIETTO, J.; GIANONI, C.; CAETANO, S. F.
Unindo esforços da Embrapa Uva e Vinho e do Sebrae, através de uma parceria com a Associação dos Produtores dos Vinhos Finos do Vale dos Vinhedos - Aprovale, foi elaborado um projeto com o objetivo de desenvolver e validar uma metodologia específica para a avaliação de impactos econômicos, sociais e ambientais provenientes de Indicações Geográficas. Para tal, também foi mobilizada a experiência do Grupo de Estudos sobre Organização da Pesquisa e da Inovação (GEOPI), no desenvolvimento de métodos de avaliação de impactos de programas de políticas públicas ligadas à ciência, tecnologia e inovação. O case da IP Vale dos Vinhedos, implementada há mais de 10 anos, foi utilizado como material para o desenvolvimento desta metodologia.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Vale dos Vinhedos; Indicação geográfica; Indicação de procedência; Viticultura; Uva; Economia agrícola; Impacto econômico; Impacto social; Impacto ambiental; Método de pesquisa; Grapes; Viticulture; Agricultural economics; Protected designation of origin; Economic impact; Environmental impact; Social impact.
Ano: 2014
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1003871

Avaliação de impacto ambiental: o caso do Programa de Análise de Qualidade de Laboratórios de Fertilidade - PAQLF.
Provedor de dados: 14
Autores: BACA, J. F. M.; TOSTO, S. G.; BERNARDI, A. C. de C.; CLAESSEN, M. E. C.; RAMALHO FILHO, A.; BRANDÃO, E. S.; COSTA, J. R. P. F. da.
As discussões sobre as questões ambientais nestas últimas décadas têm trazido grandes preocupações para a humanidade, devido ao fato de que esta vem se apropriando dos recursos naturais de forma desordenada, onde sua capacidade de regeneração está abaixo do nível de exploração. A avaliação de impactos ambientais, além da sua imposição legal, possui também razões de ordem econômica, social, ecológica e ética na busca de um meio ambiente saudável. Conforme resolução do Conselho Nacional do Meio Ambiente (Conama), considera-se impacto ambiental qualquer alteração das propriedades físicas, químicas e biológicas do meio ambiente, causada por qualquer forma de matéria ou energia (MIRRA, 1998). Este trabalho foi desenvolvido por uma equipe de pesquisadores da...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: PAQLF; Impacto Ambiental; Laboratório; Environmental impact; Laboratories.
Ano: 2005
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1108138

Efeitos do uso da terra sobre a hidrobiogeoquímica de microbacias de cabeceira na bacia do rio Jaguari - Minas Gerais.
Provedor de dados: 14
Autores: FIGUEIREDO, R. de O.; SILVA, G. B. S. da; PAZIANOTTO, R. A. A.; ZUCCARI, M. L.; COSTA, C. F. G. da; CAMARGO, P. B. de; PICCOLO, M. de C.; REIS, L. dE C.
Resumo: A caracterização da hidrobiogeoquímica de três cursos d?água foi realizada em microbacias de cabeceira de baixa ordem, relacionando-se com as mudanças de uso da terra, para apoiar a gestão e uso sustentável dos recursos hídricos da bacia do rio Jaguari, no sul do estado de Minas Gerais. A avaliação realizada constatou impactos nas águas fluviais decorrentes da mudança da cobertura florestal original. As pastagens ocasionaram aumento nas concentrações de íons maiores, carbono dissolvido e sedimentos, enquanto a agricultura, e em menor escala a silvicultura, promoveram aumento de nutrientes como o nitrogênio. A recuperação florestal iniciada ainda não reflete, de forma clara, melhoria nas águas fluviais, uma vez que os pastos predominam na paisagem....
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Microbacia; Carbono; Floresta; Silvicultura; Pastagem; Uso da Terra; Impacto Ambiental; Qualidade da Água; Watersheds; Riparian forests; Pastures; Forestry; Environmental impact; Water quality.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126533

Toxicidade reprodutiva do agrotoxico endosulfan para caramujos aquaticos: estudo em duas geracoes de Biomphalaria tenagophila.
Provedor de dados: 14
Autores: OLIVEIRA FILHO, E. C.; GRISOLIA, C. K.; PAUMGARTTEN, F. J. R.
bitstream/CPAC-2009/24322/1/p2003_10.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: TOXCOL100.; Caramujo; Endosulfan; Inseticida; Impacto Ambiental; Organismo Aquático; Reprodução; Toxidez.; Toxicologia; Aquatic organisms; Environmental impact; Insecticides; Reproduction; Toxicity; Toxicology.
Ano: 2004
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/567625

PestLCI Model: parameterization for scenarios of Brazilian agricultural production.
Provedor de dados: 14
Autores: BARIZON, R. R. M.; MATSUURA, M. I. da S. F.; SCACHETTI, M. T.; SILVA, G. B. S. da; COSTA, M. P.; GAROFALO; LANES, V. F. de; PICOLI, G.; PIGHINELLI, A. L. M. T.; MORANDI, M. A. B.
Abstract: Several methodologies have been proposed to assess the impact of pesticides applied to agricultural crops. The PestLCI Consensus v.1.0 tool presented herein helps estimating pesticide ewwmissions in agricultural processes to prepare inventories for life cycle assessment (LCA) studies. This important environmental management tool was improved to enable the incorporation of the potential impacts of these compounds on agricultural production systems. In addition, the present work also aimed to parameterize relevant agricultural production scenarios for Brazil. With this, it is expected to lead to the improvement of LCA studies that address the possible impacts of pesticides on human health and the environment.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Avaliação do ciclo de vida; Agrotóxico; Pesticida; Impacto Ambiental; Águas Superficiais; Águas Subterrâneas; Solo; Ar; Pesticides; Environmental impact; Molecular dynamics; Groundwater; Surface water; Life cycle assessment; Air.
Ano: 2021
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1137347

Análise da rentabilidade financeira e avaliação dos impactos ambientais e sociais para o manejo florestal madeireiro em áreas de reserva legal de pequenas propriedades, no Acre.
Provedor de dados: 14
Autores: SÁ, C. P. de; SILVA, F. de A. C.; OLIVEIRA, T. J. de; NUNES, C. L.
Este trabalho propõe analisar o desempenho financeiro do manejo florestal madeireiro em áreas de reserva legal de pequenas propriedades no Acre e determinar os impactos ambientais e sociais da utilização da tecnologia proposta. Para avaliação, a tecnologia do manejo florestal madeireiro em áreas de reserva legal será comparada com a exploração florestal de madeira sem plano de manejo (madeira clandestina).
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Manejo florestal comunitário; PC Pedro Peixoto; Acrelândia (AC); Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Rentabilidad.; Manejo forestal; Inventario forestal; Áreas de conservación; Análisis económico; Análisis de costo-beneficio; Administração ambiental; Cultivo a pequeña escala; Comunidades rurales; Proteção ambiental; Reserva florestal; Comunidade rural; Pequeno produtor; Inventário florestal; Análise econômica; Análise de custo-benefício; Rentabilidade; Impacto ambiental; Impacto social.; Conservation areas; Forest management; Rural communities; Small-scale farming; Forest inventory; Economic analysis; Cost benefit analysis; Profitability; Environmental impact; Social impact.
Ano: 2009
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/661720

Reconhecimento de áreas potencialmente críticas na região do Alto Taguari e Coxin (MS): subsídios à caracterização dos impactos decorrentes das atividades agrícolas.
Provedor de dados: 14
Autores: GOMES, M. A. F.; CERDEIRA, A. L.; FILIZOLA, H. F.
Áreas visitadas/reconhecidas; Localização; Conclusões preliminares.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Impacto Ambiental; Uso da Terra; Rio; Environmental impact; Land use; Rivers.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1118950

Restauração de florestas acreanas exploradas seletivamente.
Provedor de dados: 14
Autores: ARAUJO, H. J. B. de; SILVA, Y. F. da.
Por meio de técnicas de restauração, florestas exauridas podem ser conduzidas de maneira a minimizar os efeitos da exploração seletiva que as modificaram. O plantio de mudas é um método rápido e eficaz de restauração de florestas. Este trabalho objetiva descrever os resultados de plantios de enriquecimento de florestas de produção nos municípios de Xapuri, Brasiléia e Rio Branco, no estado do Acre. Foram utilizadas dez espécies florestais madeireiras comerciais: amarelão (Aspidosperma vargasii A. DC.), angelim (Ormosia arborea (Vell.) Harms), cedro (Cedrela odorata L.), cerejeira (Amburana acreana (Ducke) A. C. Sm.), freijó (Cordia alliodora (Ruiz &amp; Pav.) Oken), ipê (Tabebuia serratifolia (Vahl) G. Nicholson), itaúba (Mezilaurus itauba (Meisn.) Taub....
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Amarelão; Aspidosperma vargasii; Ormosia arborea; Cedrela mexicana; Brazilian copal; Timbaúba; Exploração seletiva; Plantio de enriquecimento; Projeto de Assentamento Agroextrativista Chico Mendes; Seringal Cachoeira; Xapuri (AC); Seringal Filipinas; RESEX Chico Mendes; Brasiléia (AC); Embrapa Acre; Rio Branco (AC); Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Enterolobium maximum; Rendimiento de los cultivos.; Bosques tropicales; Reforestacion; Madera tropical; Investigación; Explotación forestal; Floresta tropical; Exploração florestal; Extração da madeira; Impacto ambiental; Reflorestamento; Pesquisa florestal; Projeto de pesquisa; Essência florestal; Rendimento; Angelim; Cedro; Cedrela odorata; Cerejeira amarela; Amburana acreana; Freijó louro; Cordia alliodora; Ipê; Tabebuia serratifolia; Itaúba; Mezilaurus itauba; Jatobá; Hymenaea courbaril; Mogno; Swietenia macrophylla; Timboúva; Campo Experimental.; Tropical forests; Logging; Environmental impact; Reforestation; Research; Tropical wood; Crop yield; Handroanthus serratifolius.
Ano: 2017
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1072846

PRODUÇÃO integrada do feijoeiro comum: programa 22: Nordeste/Vale do Jequitinhonha.
Provedor de dados: 14
O Prosa Rural desta semana fala sobre a produção integrada do feijoeiro-comum. Você saberá como o produtor de feijão pode melhorar seu rendimento a partir da adoção do sistema integrado. A pesquisadora Flavia Barbosa, da Embrapa Arroz e Feijão, dá mais detalhes sobre a implementação do sistema de produção integrada na cultura do feijão, de maneira simples e fácil de entender. Os principais objetivos são: a redução de custos com insumos e fertilizantes e a diminuição dos impactos ambientais.
Tipo: Prosa Rural (INFOTECA-E)
Palavras-chave: Feijão; Produtor; Rendimento; Insumo; Fertilizante; Impacto Ambiental; Beans; Environmental impact; Yields.
Ano: 2018
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1092840

Socioeconomics issues linked to Best Bets - "Modeler's Workshop".
Provedor de dados: 14
Autores: VOSTI, S. A.; WITCOVER, J.; GOCKOWSKI, J.; TOMICH, T.; CARPENTIER, C. L.; FAMINOW, M.; OLIVEIRA, S. J. de M.
Questões e críticas sobre os impactos da agricultura no meio ambiente são cada vez mais frequentes. Entretanto, ainda não existe informação quantitativa que permita associar atividades agrossilvipastoris com mudanças no estoque de recursos naturais ou para comparar os retornos financeiros entre atividades alternativas. Assim, atualmente não é possível diferenciar as alternativas sob a ótica de retornos privados e sociais. Tal informação com enfoque social é crucial para a geração de políticas adequadas para a região. Para preencher esta lacuna de informação e metodologia, a Embrapa em parceria com o IFPRI e outros orgãos nacionais e internacionais, está desenvolvendo um programa de pesquisa visando a coleta de informação na área biofísica e socioeconômica,...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Agricultura; Floresta Tropical; Impacto Ambiental; Políticas Públicas; Agriculture; Tropical forests; Environmental impact; Public policy.
Ano: 1997
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/704146

Plantios de enriquecimento em florestas de produção no Acre.
Provedor de dados: 14
Autores: ARAUJO, H. J. B. de; CORREIA, M. F.; SIVIERO, A.; MACEDO, P. E. F. de; OLIVEIRA, L. C. de.
Por meio de procedimentos e técnicas de restauração que considerem a escolha apropriada das espécies (principalmente quanto às características econômicas e ambientais), florestas exauridas de espécies comerciais podem ser conduzidas de maneira a reverter, ou minimizar, os efeitos da exploração seletiva que modificou sua estrutura original. Além disso, é fundamental que a condução posterior aos procedimentos de restauração seja feita de modo a garantir a sustentabilidade das espécies em florestas de produção. Este trabalho objetiva descrever os métodos utilizados, as etapas iniciais de implantação, a definição de espécies aptas e os resultados preliminares de plantios de enriquecimento com espécies florestais madeireiras de alto valor comercial em áreas de...
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Manejo florestal; Manejo seletivo; Xapuri (AC); Brasiléia (AC); Rio Branco (AC); Acre; Amazonia Occidental; Amazônia Ocidental; Western Amazon; Esploração da madeira; Madera tropical; Explotación forestal; Regeneración artificial.; Manejo forestal; Impacto ambiental; Administração florestal; Regeneração artificial; Essência florestal.; Forest management; Logging; Tropical wood; Environmental impact; Artificial regeneration.
Ano: 2013
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/982061

Efeitos do endosulfan sobre o desempenho reprodutivo do Caramujo Biomphalaria tenagophila: resultados preliminares.
Provedor de dados: 14
Autores: OLIVEIRA FILHO, E. C. de; HOLANDA, I. L. de; GRISOLIA, C. K.; PAUMGARTTEN, F. J. R.
bitstream/CPAC-2009/24124/1/p2002_02.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: TOXCOL100.; Caramujo; Endosulfan; Impacto Ambiental; Inseticida; Organismo Aquático; Reprodução; Toxicologia.; Aquatic organisms; Environmental impact; Insecticides; Reproduction; Toxicology.
Ano: 2004
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/567426

Reconciling cattle ranching and environmental conservation in the Legal Brazilian Amazon.
Provedor de dados: 14
Autores: VALENTIM, J. F.; ANDRADE, C. M. S. de; BARIONI, L. G.
The Legal Brazilian Amazon is a region with growing economic, social and environmental relevance in the national and international scenarios. With a cattle heard above 70 million heads and an area of native and cultivated pastures above 61 million hectares cattle ranching has been one of the main focus of the debate regarding the sustainable development of the Region In the last 30 years, gains in productivity avoided need for incorporation of 147.5 million hectares of the biomes Cerrado and Amazon to the cattle production systems in the Legal Amazon to meet the current world demand for meat. Studies conducted at farm level in the State of Acre show that improved mixed grass-legume pastures with grass species of the genera Braquiaria or Panicum and the...
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Amendoim forrageiro; Forage peanut; Cacahuetes forrajeros; Ganado; Manejo de pastoreo; Pastos forrajeros; Leguminosas forrajeras; Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Pecuária; Proteção Ambiental; Pastagem; Gramínea Forrageira; Leguminosa Forrageira; Capim Brachiaria; Brachiaria; Capim Colonião; Panicum Maximum; Kudzu; Pueraria Phaseoloides; Livestock; Environmental impact; Grazing management; Arachis pintoi; Forage grasses; Forage legumes.
Ano: 2010
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1109631

Avaliação de ciclo de vida de sistemas modais e melhorados de cria no Pantanal.
Provedor de dados: 14
Autores: DIAS, F. R. T.; NOGUEIRA, E.; SILVA, J. C. B.
A bovinocultura de corte é uma das atividades humanas mais relevantes para a economia do Pantanal e do Brasil. O rebanho nacional em 2018 estava em torno de 213,5 milhões de cabeças (IBGE, 2018). Oliveira et al. (2016) estimaram a população de bovinos na planície pantaneira em 3,85 milhões de animais, sendo 70% desta (2,7 milhões de cabeças) no estado de Mato Grosso do Sul e 30% (1,15 milhões de cabeças) no estado de Mato Grosso. A Embrapa Pantanal vem desenvolvendo tecnologias para a ovinocultura de corte no Pantanal desde seu estabelecimento em 1975, muitas vezes em parceria com a Embrapa Gado de Corte. O arranjo de 'projetos+Precoce' estava entre as iniciativas desta parceria, o qual visou o desenvolvimento de tecnologias e sistemas de produção do...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Impacto Ambiental; Inseminação Artificial.; Pecuária; Bovino; Livestock production; Environmental impact; Artificial insemination; Beef cattle.
Ano: 2019
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1116261

Milieu vivant: Synthese des discussions
Provedor de dados: 5
Autores: Retiere, C.
After a general note the author reports the effects of pollutants in organisms, in particular, sublethal effects and bioaccumulation.
Tipo: Text
Palavras-chave: Estuarine organisms; Sublethal effects; Environmental impact; Estuaries; Bioaccumulation; Pollution effects; Brackishwater pollution.
Ano: 1985
URL: http://archimer.ifremer.fr/doc/1985/acte-1311.pdf

Impact de l'aquaculture sur l''environnement: prevention et controle
Provedor de dados: 5
Autores: Jatteau, P; Petit, J; Duret, J.
The main methods of predicting aquaculture wastes outputs are presented. The statistical methods based on the study of the results of water samples and biological method based on the knowledge of feed features and utilization by fish are discussed. Asserment of the wastes outputs impact on natural environment is than tackled. A critical analysis of the different approaches is made.
Tipo: Text
Palavras-chave: Environmental impact; Aquaculture.
Ano: 1993
URL: http://archimer.ifremer.fr/doc/1993/acte-1330.pdf

Caractéristiques de dragues et pêcheries
Provedor de dados: 5
Autores: Pitel, Mathilde; Berthou, Patrick; Fifas, Spyros.
Basically, a dredge is a bottom-towed gear and consists of a metal frame with a blade or teeth, to dig into the sediment and extract the shelled molluscs, and a mesh bag to collect the catch. Whereas hand dredging is observed on some intertidal beds (Donax trunculus in France), the use of dredge generally needs a fishing boat. There is a great diversity of dredge types, with specific designs used to target different species in particular beds:   Manual dredges for Donax (Donax trunculus), Warty venus (Venus verrucosa) and clams (Venerupis pulastra, Ruditapes sp)   Dredges for King scallops (Pecten maximus)   Dredges for Warty venus (Venus verrucosa)   Dredge for Queen scallops (black and white, Chlamys varia and Chlamys opercularia)   Dredges for small...
Tipo: Text
Palavras-chave: Management; Environmental impact; Spisula; Bittersweet palourdi; Fishing boat; Clam; Dredge; Brittany; Gestion; Impact environnemental; Spisula; Amande; Navire de pêche; Drague; Bretagne.
Ano: 2001
URL: http://archimer.ifremer.fr/doc/2001/rapport-4608.pdf

Impact du milieu sur les nourricieres de poissons plats de la Baie de Seine
Provedor de dados: 5
Autores: Duval, P.
This study has two objectives: (1) the knowledge of spatial and temporal characteristics of flat fish nursery grounds, and, (2) the determination of natural or man-induced factors affecting these nurseries: hydrodynamics, sediment properties, predation, competition, water quality, pollution. To protect these grounds the author proposes a fisheries management plan and an impact study before all port installations or all coastal equipment use.
Tipo: Text
Palavras-chave: Resource conservation; Predation; Juveniles; Flatfish fisheries; Pollution effects; Environmental impact; Estuarine fisheries; Nursery grounds.
Ano: 1985
URL: http://archimer.ifremer.fr/doc/1985/acte-1321.pdf

Spatial and temporal extension of eutrophication associated with shrimp farm wastewater discharges in the New Caledonia lagoon
Provedor de dados: 5
Autores: Thomas, Yoann; Courties, Claude; El Helwe, Yasmin; Herbland, Alain; Lemonnier, Hugues.
Shrimp farming in New Caledonia typically uses a flow-through system with water exchange rates as a tool to maintain optimum hydrological and biological parameters for the crop. Moreover, the effluent shows hydrobiological characteristics (minerals, phytoplankton biomass and organic matter) significantly higher than that of the receiving environment. Separate surveys were carried out in a bay (CH Bay) with a medium-size intensive farm (30 ha) (PO) and in a mangrove-lined creek (TE Creek) near a larger semi-intensive farm (133 ha) (SO). Net loads of nitrogen exported from the semi-intensive farm and the intensive farm amounted to 0.68 and 1.36 kg ha(-1) day(-1), respectively. At CH Bay, discharge effects were spatially limited and clearly restricted to...
Tipo: Text
Palavras-chave: Environmental impact; Shrimp farming; Eutrophication; Flow cytometry; New Caledonia.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00014/12527/9882.pdf

Influence sur les peuplements estuariens des rejets industriels et amenagements portuaires
Provedor de dados: 5
Autores: Proniewski, F.
Morphological change of an estuary is the major factor of estuarine populations distribution. Biological zonation follows sedimentary changes, in particular, silting.
Tipo: Text
Palavras-chave: Silting; Estuarine organisms; Industrial wastes; Port installations; Environmental impact.
Ano: 1985
URL: http://archimer.ifremer.fr/doc/1985/acte-1315.pdf

Impact biosedimentologique d'amenagements portuaires en estuaire de Seine
Provedor de dados: 5
Autores: Desprez, M; Dupont, J.
Many harbour installations have reduced the intertidal zone and involved estuary choking by marine sediments. In 1980, weirs were built in dikes of navigation channels. This study strikes the balance of their impact on estuarine biofacies and points out indicator species for the study of biological impact of environmental design.
Tipo: Text
Palavras-chave: Indicator species; Biofacies; Estuarine sedimentation; Benthos; Port installations; Environmental impact; Coastal zone management.
Ano: 1985
URL: http://archimer.ifremer.fr/doc/1985/acte-1314.pdf

Pisciculture et environnement en Espagne
Provedor de dados: 5
Autores: Vasquez, Marta.
The author presents a brief picture of Spanish fish breeding and its water legislation (laws and sanctions) including environmental impact study.
Tipo: Text
Palavras-chave: Spain; Environmental impact; Water quality; Legislation; Fish culture.
Ano: 1993
URL: http://archimer.ifremer.fr/doc/1993/acte-1328.pdf

Upstream dam impacts on gilded catfish Brachyplatystoma rousseauxii (Siluriformes: Pimelodidae) in the Bolivian Amazon
Provedor de dados: 5
Autores: Van Damme, Paul A.; Córdova-clavijo, Leslie; Baigún, Claudio; Hauser, Marilia; Da Costa Doria, Carolina R.; Duponchelle, Fabrice.
This paper explores the effects of two run-of-river dams (Jirau and Santo Antônio) built in cascade in the middle Madeira River (Brazil) on the interruption of long-distance migration routes of the gilded catfish (Brachyplatystoma rousseauxii). A participative monitoring system was set up to compare capture by commercial fishers approximately 1500 km upstream of the dams in Bolivia, before (1998-2007) and after (2015-2017) dam closure. A significant decrease in gilded catfish catches and in catch per unit effort was observed after dam closure, whereas no significant difference in mean weight was found. Back-estimation of age suggests that the few individuals remaining after dam closure in 2009 are a mixture of old homers that returned upstream before dam...
Tipo: Text
Palavras-chave: Environmental impact; Fish migration; Fishways; Madeira dams; River connectivity.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00595/70723/68957.pdf

Les nodules du pacifique central dans leur environnement géologique CAMPAGNES COPANO - 1979
Provedor de dados: 5
Autores: Pautot, Guy; Hoffert, Michel.
The cruises named COPANO have been undertaken during the summer 1979 on the R. V. Le Suroit of the CNEXO, as a part of an international research program I.C.I.M.E. The objective of this project was to study relatively small zones (a few km2) and to establish a relationship between characteristics of the manganese nodules and their environment. During the COPANO cruises, five zones have been studied: two in the northern Pacific, two in the southern Pacific and finally one in the equatorial Pacific. All the zones are centered on the longitude 134° Wand therefore their symmetry to the highly productive equatorial zone may be tested. As one of the results of the cruises is the relation between nodules and the bottom soil, established by sediment-sampling and a...
Tipo: Text
Palavras-chave: Géochimie; Cartographie; Geologie; Fonds marin; Environnement; Nodules; Geochemistry; Mapping; Structural geology; Environmental impact; Nodule.
Ano: 1984
URL: http://archimer.ifremer.fr/doc/1984/rapport-1144.pdf

Contamination de l'estuaire et de la baie de Seine par le PCB-Bilan des etudes
Provedor de dados: 5
Autores: Abarnou, Alain; Simon, S.
This report is a synthesis of data concerning PCB concentrations in water, sediments and organisms (Bivalvia, Malacostraca, Pisces). Water analysis shows that Seine River is the primordial factor affecting PCB dispersion in the bay. Sediment contamination is higher near estuary along Calvados coast. PCB levels in Mytilidae and in Pectinidae set the problem of polluant origin, dispersion and effects on estuarine organisms.
Tipo: Text
Palavras-chave: Bioaccumulation; Sediment pollution; Water pollution; PCB; Environmental impact.
Ano: 1985
URL: http://archimer.ifremer.fr/doc/1985/acte-1319.pdf

Introduction in Europe, from 1972 to 1980, of the Japanese Manila clam (Tapes philippinarum) and the effects on aquaculture production and natural settlement
Provedor de dados: 5
Autores: Flassch, Jean-pierre; Leborgne, Yves.
The Pacific Mani la clam (Tapes philippinamm) was introduccd in France be tween 1972 and 1975 by the SATMAR Corporation , and in England through the Conwy Laboratory in 1980. Initially. spat were introduced and later adults, both from the west coast of North America (Puget Sound area). Aquaculture production in France started from adults. Until 1975, experiments with the spat were conducted at half-industrial scale and research activities and plans to transfer the knowledge were set up. The breeding began at first on the French Atlantic coast in intertidal areas and at the same time in oyster ponds. Characteristics of the new cu lture are presented in th is paper. The diseases met wilh in larval production and growout are also discussed . Nalural...
Tipo: Text
Palavras-chave: Clam culture; Environmental impact; Introduced species; Tapes philippinarum.
Ano: 1994
URL: http://archimer.ifremer.fr/doc/00037/14871/12197.pdf

L'arsenic en milieu marin: Synthese bibliographique
Provedor de dados: 5
Autores: Michel, Pierre.
Arsenic is an important element in marine environment due to its level 1,000 times higher that of mercury and its behavior close to that of  phosphorus. This overview recalls few chemical and biochemical basis and presents the current state of knowledge about its sources, concentration levels in estuarine and oceanic waters, sediments and biota. Toxicity for species, ecosystems and consumers, and analytical methods for its control are approached.
Tipo: Text
Palavras-chave: Environmental impact; Literature reviews; Toxicity; Arsenic; Metals.
Ano: 1985
URL: http://archimer.ifremer.fr/doc/1985/publication-1779.pdf

La Baie de Seine: Utilisation, environnement. Synthese des discussions
Provedor de dados: 5
Autores: Mauvais, J.
This report synthesizes the communications about the processes set in motion or accelerated by man's actions in the Seine Bay. They are grouped in three categories: fishing and pollution and estuarine equipment; colored waters and pollution; and estuarine equipment.
Tipo: Text
Palavras-chave: Red tides; Port installations; Estuarine fisheries; Environmental impact; Brackishwater pollution; Coastal zone management; Estuaries.
Ano: 1985
URL: http://archimer.ifremer.fr/doc/1985/acte-1322.pdf

Contamination chimique du milieu marin : de la mesure à l'évaluation des risques
Provedor de dados: 5
Autores: Abarnou, Alain.
This activity report entitled (“Chemical contamination of the marine environment: from measurement to risk assessment”) summarizes the main stages my career at Ifremer from November 1975 to june 2013. The first chapter deals with the seawater chlorination and chlorinated waters released into the sea, the identification and the conditions of the formation of various by-product of these processes. The second chapter concerns PCBs, their nature, their chemical analysis in environmental matrices. PCBs are considered as the best examples of persistant and bioaccumulable compounds and therefore, in all this report they are flagship contaminants to which other groups of studied substances are compared. The third chapter refers to studies performed within marine...
Tipo: Text
Palavras-chave: Chlore; Chloration de l’eau de mer; Oxydant; Bromoforme; Impact environnemental; Mécanismes réactionnels; Désinfection; Polluants organiques persistants (POP); PCB; Dioxines; HAP; PBDE; Chlordécone; Baie de Seine; Organismes marins; Moules; Poissons; Surveillance environnementale; Analyse; Bioaccumulation; Chlorine; Seawater chlorination; Oxidizing agent; Bromoform; Environmental impact; Reaction mechanisms; Disinfection; Persitsent organic pollutants (POPs); PCBs; Dioxins; PAHs; PBDEs; Chlordecone (kepone); Baie de Seine; Marine organisms; Mussel; Fish; Environmental monitoring; Chemical analysis; Bioaccumulation.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00168/27946/26237.pdf

Impact de l'aquaculture marine sur l'environnement : aspects juridiques et économiques
Provedor de dados: 5
Autores: Paquotte, Philippe.
Aquaculture is an economic activity which is characterised by a great dependence on environmental conditions. Therefore aquaculture development is subdued to institutional context which defines the rules for use and conservation of the environment. This paper analyses the impact of marine environment regulations on economic operating of aquaculture enterprises and on industrial dynamics. Because aquaculture enterprises use a collective good, an economic approach of aquaculture has to take into account not only the relations between enterprises and environment, but also the relations between the enterprises themselves, through production externalities. In this study, several economic tools are considered in order to incite enterprises to integrate pad of...
Tipo: Text
Palavras-chave: Sustainability; Development policies; Fiscal policies; Regulations; Environmental protection; Water; Environmental impact; Marine environment; Aquaculture; SEM; Durabilité; Politique de développement; Politique fiscale; Réglementation; Protection de l'environnement; Eau; Impact sur l'environnement; Milieu marin; Aquaculture.
Ano: 1994
URL: http://archimer.ifremer.fr/doc/1994/publication-4018.pdf

Pisciculture et environnement au Danemark
Provedor de dados: 5
Autores: Tesson, E.
The author presents a brief picture of Danish freshwater fish breeding and its water legislation (laws and sanctions), including environmental impacts and quality of aquatic products.
Tipo: Text
Palavras-chave: Denmark; Environmental impact; Water quality; Legislation; Fish culture.
Ano: 1993
URL: http://archimer.ifremer.fr/doc/1993/acte-1327.pdf

Impact de la salmoniculture marine sur l'environnement en rade de Cherbourg (1993-1995) 2. étude biosédimentaire
Provedor de dados: 5
Autores: Kempf, Marc; Cadour, Gwenael; Jeanneret, Hélène; Mear, Yan; Miramand, Pierre; Merceron, Michel.
This document is a result of an environmental impact study carried out between 1993 and 1995 on the site of a marine trout culture located in the Harbour of Cherbourg, France. It deals with the solid waste of the farm and concems deposition rate, sediment analysis and chemistry (fine fraction &lt; 63 ~m, organic matter, carbon, nitrogen, copper and zinc), bottom living organisms and underwater video monitoring. The impact observed is very moderate and localised. This is mainly due to the strong d)'TIamics and flushing rate of the site. A seperate volume of the same study deals with dissolved waste and concems the water mass (volume 1 : water and pelagos). (Not controlled OCR)
Tipo: Text
Palavras-chave: Rade de Cherbourg; Étude biosédimentaire; Impact; Salmoniculture marine; France; Cherbourg; Benthos; Sediment; Environmental impact; Trout; Marine fish farming.
Ano: 1997
URL: http://archimer.ifremer.fr/doc/1997/rapport-3349.pdf

Scenarios of fish waste deposition at the sub-lagoon scale: a modelling approach for aquaculture zoning and site selection
Provedor de dados: 5
Autores: Chary, Killian; Callier, Myriam; Coves, Denis; Aubin, Joel; Simon, Julien; Fiandrino, Annie.
Spatial planning, including zoning and site-selection steps, is necessary to determine locations that minimize environmental impacts of aquaculture and respect ecosystem carrying capacities. This study aimed to analyse potential benthic waste deposition in a broad range of fish farming situations to facilitate zoning. To this end, we simulated waste dispersion for 54 aquaculture scenarios combining three red drum (Sciaenops ocellatus) farm types (Small, Medium, and Large) based on real farm characteristics and 36 sites with contrasting hydrodynamics in Mayotte’s North-East Lagoon. Key forcing variables and parameters of the particle-dispersion model for farms (layout and solid waste fluxes), species (feed- and faeces-settling velocities) and sites (depth...
Tipo: Text
Palavras-chave: Aquaculture zones; Carrying-capacity; Environmental impact; Hydrodynamics; NewDEPOMOD; Particle dispersion; Red drum; Scenario analysis.
Ano: 2021
URL: https://archimer.ifremer.fr/doc/00666/77810/79985.pdf

Synthese des connaissances sur les effets du depot de dragage d''Octeville
Provedor de dados: 5
Autores: Chauvin, P; Freger, G; Guyader, Julie.
Le Havre Harbour dredging wastes are deposited off Octeville and cause the spreading of muds in this area. Currents disperse the sediments on a large zone. Physico-chemical analysis show low micropolluants concentrations. Water quality seems not to be affected by these deposits, but a reduction of species living in the sediments is observed.
Tipo: Text
Palavras-chave: Water quality; Sediment transport; Waste disposal sites; Environmental impact; Sediment pollution; Dredge spoil; Ocean dumping.
Ano: 1985
URL: http://archimer.ifremer.fr/doc/1985/acte-1316.pdf

Southampton water and the Solent: Biological effects of the multi-use of an estuarine system.
Provedor de dados: 5
Autores: Lockwood, A.
An outline is provided of (1) some factors which have influenced the clam and oyster populations of the area (2) the effect of nutrient load on phytoplankton production (3) the correlation between Mesodinium blooms and the summer oxygen levels in the stratified part of the estuary and (4) a description of the fauna and flora in regions adjacent to some industrial inputs.
Tipo: Text
Palavras-chave: Aquatic communities; Ecosystems; Coastal zone management; Oyster fisheries; Oxygen depletion; Algal blooms; Phytoplankton; Estuaries; Environmental impact.
Ano: 1985
URL: http://archimer.ifremer.fr/doc/1985/acte-1310.pdf

GHYDRO: Methodology guide for assessment of environmental impacts of tidal stream energy technologies at sea
Provedor de dados: 5
Autores: Lejart, Morgane; Auvray, Cedric; Barillier, Agnes; Cadiou, Bernard; Carlier, Antoine; Delpech, Jean-paul; Folegot, Thomas; Giry, Cyril; Loaec, Jean-marie; Martinez, Ludivine; Prevot, Jehanne.
The objective of GHYDRO, a France Energies Marines project, is to draw up a methodology guide that provide stakeholders in tidal stream energy projects with decision-making help for the environmental integration of generators and tidal farms. The methodological guide currently represents a summary of the recommendations concerning the diverse physical parameters and biological compartments of the ecosystems that are potentially affected. The physical and biological compartments of the marine ecosystems have been addressed separately in the guide, in order to propose methodologies adapted to each one, in relation to the establishment of the initial state, the characterisation of the potential impacts and the environmental monitoring. To bring together the...
Tipo: Text
Palavras-chave: Methodology guide; Environmental impact; Tidal stream energy.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00230/34115/32570.pdf

Imidacloprid impact on arthropods associated with canopy of common beans
Provedor de dados: 82
Autores: Marquini,Flávio; Picanço,Marcelo C.; Guedes,Raul N.C.; Ferreira,Paulo S.F.
The present work aimed at assessing the temporal and spatial effect of applying the insecticide imidacloprid on the arthropod community associated with the canopy of common beans (Phaseolus vulgaris). About 2 ha of bean field was divided into two adjacent fields subjected to the same crop management practices except for insecticide application. Imidacloprid 700 GrDA (147 g a.i./ha) was applied to 20-day old plants. Three transects were extended from the mid-part of the sprayed area to the mid-part of the non-sprayed area. Nine sampling points 10 m apart were established in each transect. Arthropods were sampled from the plant canopy before and 3, 8, 14, 22, 29 37 and 44 days after insecticide application. There was a strong temporal effect of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Insecta; Neonicotinoid; Environmental impact; Phaseolus vulgaris.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2003000200021

Diet and trophic structure of the fish assemblage in the mid-course of the Teles Pires River, Tapajós River basin, Brazil
Provedor de dados: 83
Autores: Dary,Eurizângela P.; Ferreira,Efrem; Zuanon,Jansen; Röpke,Cristhiana P.
ABSTRACT This study was carried out in a section of the middle course of the Teles Pires River, a clear water river that drains ancient and highly eroded geological formations, and where five hydropower plants are planned or in construction. In this study we tested the hypothesis that local fish fauna is mainly sustained by autochthonous food resources, with modest changes in the trophic structure of fish assemblages along the hydrometric cycle. Sampling was performed every three months between July 2008 and May 2009 at seven sites distributed along a 50-km section of the river. Piscivores was the most representative group in terms of biomass, abundance and species richness, followed by herbivores, insectivores and omnivores. The trophic structure did not...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amazon; Environmental impact; Food resources; Temporal dynamics; Trophic ecology.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252017000400201

Upstream dam impacts on gilded catfish Brachyplatystoma rousseauxii (Siluriformes: Pimelodidae) in the Bolivian Amazon
Provedor de dados: 83
Autores: Damme,Paul A. Van; Córdova-Clavijo,Leslie; Baigún,Claudio; Hauser,Marilia; Doria,Carolina R. da Costa; Duponchelle,Fabrice.
ABSTRACT This paper explores the effects of two run-of-river dams (Jirau and Santo Antônio) built in cascade in the middle Madeira River (Brazil) on the interruption of long-distance migration routes of the gilded catfish (Brachyplatystoma rousseauxii). A participative monitoring system was set up to compare capture by commercial fishers approximately 1500 km upstream of the dams in Bolivia, before (1998-2007) and after (2015-2017) dam closure. A significant decrease in gilded catfish catches and in catch per unit effort was observed after dam closure, whereas no significant difference in mean weight was found. Back-estimation of age suggests that the few individuals remaining after dam closure in 2009 are a mixture of old homers that returned upstream...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Environmental impact; Fish migration; Fishways; Madeira dams; River connectivity.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252019000500213

Movement and longitudinal distribution of a migratory fish ( Salminus brasiliensis) in a small reservoir in southern Brazil
Provedor de dados: 83
Autores: De Fries,Lucas; Hahn,Lisiane; Meneses,Bruna Arbo; Câmara,Luís Fernando da; Becker,Fernando Gertum; Hartz,Sandra Maria.
ABSTRACT We investigated whether the movement and distribution of the migratory fish, Salminus brasiliensis, were affected by a small reservoir. We also examined how movement and distribution were related to water temperature, flow, and rainfall. In December 2011 and January 2012, 24 individuals were captured downstream from the dam, tagged with radio transmitters and released in the reservoir (5.46 km² total area). After being released in the reservoir, 18 of the 24 tagged fish travelled upstream, taking an average of 16.6 days to leave the reservoir, with daily movements varying from &lt; 5 km/day to &gt; 24 km/day. However, only seven tagged specimens (29.16%) returned to the lower reservoir section, while the rest remained in the intermediate and upper...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Environmental impact; Fragmentation; Habitat use; Hydroelectric power; Radio telemetry.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252019000300202

Diet of Bryconops alburnoides and B. caudomaculatus (Osteichthyes: Characiformes) in the region affected by Balbina Hydroelectric Dam (Amazon drainage, Brazil)
Provedor de dados: 83
Autores: Silva,Cylene C. da; Ferreira,Efrem J. G.; Deus,Cláudia P. de.
The study of fish diet and its interaction with the environment provides important data on ecology and behavior, as fish face varying environmental and food availability conditions. The aim of the present study was to determine the diet of Bryconops caudomaculatus and Bryconops alburnoides, as well as to assess its seasonal variation, within the area influenced by Balbina Hydroelectric Dam (BHD), in the Uatumã River (Amazon Basin, Brazil). Collections were carried out every two months from April 2005 to February 2007, using gill nets with mesh sizes ranging from 12 to 60 mm between opposite knots. Two methods were used for determining diet: frequency of occurrence and relative volume, which were used to calculate the alimentary index (IAi). Diet similarity...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Feeding ecology; Reservoir; Amazon; Environmental impact.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252008000200011

Capacidad de dilución del Río Guayas para contrarrestar el impacto por vertientes industriales terrestres
Provedor de dados: 20
Autores: Suárez, P.
Una de las principales y mayores causas de la contaminación marina, es la falta de tratamiento de efluentes industriales antes de verterlos en los ríos, mares u océano, bajo este contexto, los ríos operan como verdaderos filtros y emplean sus características hidráulicas para tratar de diluir las aguas residuales de las industrias. Se considera entonces como área de estudio el Parque industrial Río Guayas sur de la ciudad de Guayaquil, tomando dos decargas industriales de considerable magnitud analizando tanto del Río Guayas como de estos efluentes industriales la DBO, DQO, OD, pH y Microbiología. Se correlaciona los valores resultado de los ensayos para evaluar la contaminación. Entonces se pone a consideración un Modelo de Calidad de Agua en el que se...
Tipo: Journal Contribution
Palavras-chave: Waste water; Industrial wastes; Environmental impact; Freshwater pollution; River water; Water analysis; Waste water; Environmental impact; Industrial wastes; Water analysis; Http://aims.fao.org/aos/agrovoc/c_24927; Http://aims.fao.org/aos/agrovoc/c_24420; Http://aims.fao.org/aos/agrovoc/c_11763; Http://aims.fao.org/aos/agrovoc/c_16064.
Ano: 1998
URL: http://hdl.handle.net/1834/2314

Los ensayos ecotoxicológicos como una alternativa para la evaluación del impacto ambiental, evaluación de una molécula de interés
Provedor de dados: 20
Autores: Camacho Bordón, S.; Aguila Jiménez, E.; Cortés Rodríguez, R.; Pérez Donato, A.; Serrano Pérez, H.; Agramonte Peñalver, D.
In the last years, the world has taken concious of the necessity of monitoring the impact of contaminants from social and productive activities of modern societies on ecosystems to solve this problem a series of test have been achieved and yet are tried to be improved which are directed to especific aspects of ecosystems. In our country different institution have joined efforts to give an answer related to the evaluation of compounds used in agriculture. This work is coordinated by Toxicological National Center of Cuba (CENATOX) and has assigned to each member of the national toxicological net the task of standardizing reliable test for a rapied and well aimed answer in this sense. As members of this net, the Center of Bioactive Chemicals Toxicological...
Tipo: Conference Material
Palavras-chave: Ecotoxicology; Ecosystems; Environmental impact; Pollution effects; Pollution; Ecotoxicology; Ecosystems; Environmental impact; Pollution; Http://aims.fao.org/aos/agrovoc/c_35788; Http://aims.fao.org/aos/agrovoc/c_2482; Http://aims.fao.org/aos/agrovoc/c_24420; Http://aims.fao.org/aos/agrovoc/c_6077.
Ano: 2006
URL: http://hdl.handle.net/1834/2252

Communication mer-lagune: impact d'une réouverture sur l'ichtyofaune de la lagune Ebrié (Côte d'Ivoire)
Provedor de dados: 20
Autores: Albaret, J.J.; Ecoutin, J.-M.
La réouverture artificielle de la passe de Grand-Bassam, pratiquée en septembre 1987 dans le but de limiter la prolifération des végétaux aquatiques, a modifié l'environnement et la structure des peuplements ichtyologiques de la partie orientale de la lagune Ebrié (Côte d'Ivoire). Les résultats de deux séries d'observations réalisées en mai 1988 montrent une élévation notable de la salinité et une augmentation de la composante marine au sein des peuplements de poissons par rapport à la situation antérieure (années de référence: 1980 et 1981).
Tipo: Journal Contribution
Palavras-chave: Lagoons; Communication; Sea; Environmental impact.
Ano: 1991
URL: http://hdl.handle.net/1834/5371

Larvas de peces clupeiformes y microzooplankton en la estación fija "La Libertad" desde noviembre de 1999 a julio del 2000
Provedor de dados: 20
Autores: Luzuriaga de Cruz, M.
Uno de los principales objetivos es la evaluación de los impactos que los eventos de El Niño tienen en las poblaciones del ictioplancton, con especial referencia a huevos y larvas de especies de interés comercial. Para el efecto se utilizan también, a más de los datos oceanográficos, especies de foraminíferos planctónicos como indicadores del estado del ecosistema. En el presente documento se detalla la distribución de larvas de Sardinops sagax (sardina), Ophistonema sp., Cetengraulis mysticetus (chuhueco), Anchoa y Engraulis ringens (anchoveta) durante el primer semestre del año 2000.
Tipo: Journal Contribution
Palavras-chave: Ichthyoplankton; Biological production; Biomass; Zooplankton; Distribution; Fish eggs; Fish larvae; El Nino phenomena; Environmental impact; Fixed stations; Biological production; Biomass; Zooplankton; Distribution; Environmental impact; Fish larvae.
Ano: 2004
URL: http://hdl.handle.net/1834/2284

GIS-based integration of interdisciplinary ecological data to detect land-cover changes in creek Mangroves at Gazi Bay, Kenya
Provedor de dados: 20
Autores: Koedam, N.; Dahdouh-Guebas, F.; De Wulf, R.; Tack, J.; Obade, P.T.
Historic environmental, faunal, floral and socioeconomic data of Gazi Bay in coastal Kenya were collated and integrated into a GIS environment and data of impacts due to various factors were then related to remotely sensed data. Rhizophora mucronata, a valuable mangrove species, was investigated. Very low values of basal area (7.7 m2/ha and 4.9 m2/ha) and complexity indices (1.86 and 1.12) at Makongeni and Kinondo 1, respectively, reflected intense human pressure in these areas. Areas that were easily accessible or close to human settlements appeared more vulnerable. Accrued information from a socioeconomic survey carried out over the same period corroborates the hypothesis that human influence was a major contributor to these changes. Historic aerial...
Tipo: Journal Contribution
Palavras-chave: Ecology; Environmental monitoring; Mangroves; Fauna; Satellite imagery; Environmental impact; Http://aims.fao.org/aos/agrovoc/c_24420.
Ano: 2004
URL: http://hdl.handle.net/1834/1087

Hydrologie, sédimentaire et géochimie de l'oued Tinja (Tunisie septentrionale
Provedor de dados: 20
Autores: Ben Gharali, A.; Ouakad, M.; Gueddari, M.
L'oued Tinja relie la garaet Ichkeul à la lagune de Bizerte laquelle communique avec la mer Méditerranée par un long goulet. Les eaux de cet oued dépendent à la fois des apports saisonniers des eaux marine et douce et présente de ce fait, des salinités très fluctuantes. L'important réseau hydrographique associé au plan d'eau de l'Ichkeul (avec un bassin versant très important d'environ 2080 km2) est sujet à de nombreux aménagements hydrauliques, notamment la construction de barrages de retenues d'eau douce. Ces derniers sont susceptibles de perturber les caractéristiques hydrologiques, sédimentologiques et géochimiques du système laguno-lacustre (lagune de Bizerte et garaet Ichkeul) et d'entamer par voie de conséquence sa diversité et sa richesse...
Tipo: Journal Contribution
Palavras-chave: Environmental impact; Geochemistry; Hydrology; Quality; Sediment analysis; Species diversity.
Ano: 2008
URL: http://hdl.handle.net/1834/4270

Le thon rouge (Thunnus thynnus thynnus L. 1758) des eaux tunisiennes  Etats des lieux, pêche et activités d’engraissement
Provedor de dados: 20
Autores: Hattour, A.
L’engraissement du thon rouge a connu un regain d’intérêt depuis le boom économique japonais i.e. vers le milieu des années 70. A cette époque les projections ont mis en évidence que la production mondiale ne suffirait plus à satisfaire le marché japonais. C’est ce constat qui a amené les grandes firmes japonaises à réfléchir sur l’engraissement du thon rouge. Cette technologie fût exportée en Espagne où l’activité a démarré effectivement au début des années 1990 pour atteindre son apogée vers les années 1996-1997. Plusieurs pays méditerranéens ont suivi le pas de l’Espagne à l’image de la Croatie, Malte, Chypre, Italie, etc., En Tunisie, pendant les six dernières années (2003-2008) l’activité d’engraissement du thon rouge (BFT) a atteint voire dépassé...
Tipo: Journal Contribution
Palavras-chave: Purse seines; Cages; Fish culture; Tuna; Environmental impact.
Ano: 2011
URL: http://hdl.handle.net/1834/4735

Identificación y evaluación de los impactos ambientales en las zonas de plataforma marino costera I, II y III. Zonas de Gestión I y II.
Provedor de dados: 20
Autores: Rivas-Rodríguez, L.; Martínez-Iglesias, J. C.; Sánchez-Noda, R.; Areces-Mallea, A. J.; Rodríguez-Quintana, Y.
Conocer como el hombre ha impactado las zonas de plataforma marino costera I, II y III, es el principal  objetivo del presente trabajo. Se inventariaron y evaluaron un total de 382 impactos, de ellos 302 eran  negativos, 74 positivos y 6 neutros. Dichos impactos estaban recogidos en 11 Estudios de Evaluación de  Impacto Ambiental. Es importante aclarar que los resultados obtenidos se restringen solo a la información  contenida en estos estudios. Para la evaluación se empleó la Matriz de Evaluación Rápida de Impactos  Ambientales (RIAM). Los resultados permitieron establecer que los impactos ambientales negativos  residuales más importantes fueron: afectación a la fauna, a los ecosistemas marino – costeros, al suelo,  al hábitat natural, a las aguas...
Tipo: Journal Contribution
Palavras-chave: Environmental impact; Environmental factors; Environmental impact; Environmental factors; Http://aims.fao.org/aos/agrovoc/c_24420; Http://aims.fao.org/aos/agrovoc/c_2594.
Ano: 2011
URL: http://hdl.handle.net/1834/4056

Global Environmental Change And Food Provision In Southern Africa: Explorations For A Possible Gecafs Research Project In Southern Africa
Provedor de dados: 20
Autores: Arntzen, J.; Muchero, M.; Dube, P.
This report is the result of a brief study that has been carried out in the period December 2003 to February 2004 by Jaap Arntzen, Pauline Dube and Martin Muchero for the Programme Office of the Global Environmental Change and Food Systems Programme,UK.
Tipo: Other
Palavras-chave: Environmental impact; Climate change; Food supply; Http://aims.fao.org/aos/agrovoc/c_35367; Http://aims.fao.org/aos/agrovoc/c_3029.
Ano: 2004
URL: http://hdl.handle.net/1834/691

La décadence d'une ville précoloniale du Togo, Aného, en pays Guin
Provedor de dados: 20
Autores: Dovi, Q.; Nyassogbo, G.
Tipo: Journal Contribution
Palavras-chave: Pays guin; Aného; Coastal zone; Colonization; Environmental conditions; Environmental impact; Nutritive value; Population density; Population structure; Product development; Rivers; Environmental impact; Nutritive value; Population structure; Rivers; Environmental conditions; Population density; Product development; Http://aims.fao.org/aos/agrovoc/c_24420; Http://aims.fao.org/aos/agrovoc/c_5278; Http://aims.fao.org/aos/agrovoc/c_6115; Http://aims.fao.org/aos/agrovoc/c_6617; Http://aims.fao.org/aos/agrovoc/c_32980; Http://aims.fao.org/aos/agrovoc/c_6112; Http://aims.fao.org/aos/agrovoc/c_16018.
Ano: 2003
URL: http://hdl.handle.net/1834/1067

Determinación de la capacidad antiepibiótica de los extractos orgánicos crudos de las esponjas marinas Cribrochalina infundibulum y Biemna cribaria
Provedor de dados: 20
Autores: Arias, J.; Zea, S.; Newmark, F.; Santos-Acevedo, M.
As a contribution to the biological knowledge about the sea fan Gorgonia ventalina and the use of this information as a tool to generate conservation and management strategies for this threatened species, a study about its annual growth rate, in different reef areas in Santa Marta and the National Natural Park Tayrona in the Colombian Caribbean took place. Manual measurements of 35 colonies were analyzed and images of 11 colonies were recorded in the beginning and in the end of the field stage. The annual growth rate varies among colonies and areas where measurements were taken. The average annual growth rate obtained with both of the methods was high and oscillated between 7.6 and 8.1 cm/year in height and between 6.9 and 8.3 cm/year wide. The total area...
Tipo: Journal Contribution
Palavras-chave: Antifouling substances; Environmental impact; Fans; Environmental impact; Http://aims.fao.org/aos/agrovoc/c_24420.
Ano: 2006
URL: http://hdl.handle.net/1834/1975

Environmental influence on marine pelagic fish: Evidence from bioeconomic modelling
Provedor de dados: 20
Autores: Agbesi, E.N.
Environmental factors other than fishing effort, contribute to influencing marine pelagic fish population dynamics and abundance. There is evidence from environmental modelling and bioeconomic analysis of the Ghanaian marine inshore pelagic fisheries. Ghana is a West African country and lies on the Greenwich Meridian. It is bordered at the South by the Gulf of Guinea. The official language of Ghana is English, but is surrounded by French speaking countries. The inshore fishery is a multi-specie, multi-fleet fishery, consisting of artisanal and inshore purse seine fleets. The coastal inhabitants depend mainly on the marine fisheries as source of employment and livelihood. Fisheries constitute 5% of Agriculture GDP. The two fisheries types in the inshore...
Tipo: Working Paper
Palavras-chave: Pelagic fish; Fishery economics; Environmental impact.
Ano: 2000
URL: http://hdl.handle.net/1834/670

Evaluación de las zonas con impacto antrópico del Golfo de Batabanó, Cuba. Empleo de indices de calidad
Provedor de dados: 20
Autores: Martínez Canals, M.; Montalvo, J.F.; Miravet, M.E.; Lugioyo, M.; Loza, S.; Pérez, R.
The evaluation of the possible environmental changes due to the anthropic impacts that have happened in the last years in this scenario and the redefinition of areas that suffer affectations were carried up. Any environmental alteration of this ecosystem, either of natural or human origin, can have an important economic and social repercussion. According to the proposed chemical and biological indexes, the waters of the Gulf of Batabanó presented mesotrophic conditions with tendency to the eutrofization in four fundamental areas. In the silts of the Gulf the values of organic carbon and sulphidric acid were characteristic of sediments with high concentrations of organic matter. In the coastal sector N, was determinate high concentrations of sulphidric acid...
Tipo: Conference Material
Palavras-chave: Heavy metals; Environmental impact; Coastal waters; Water quality; Man-induced effects; Marine pollution; Heavy metals; Environmental impact; Water quality; Coastal waters; Http://aims.fao.org/aos/agrovoc/c_2223; Http://aims.fao.org/aos/agrovoc/c_24420; Http://aims.fao.org/aos/agrovoc/c_16061; Http://aims.fao.org/aos/agrovoc/c_25205.
Ano: 2006
URL: http://hdl.handle.net/1834/2254

Towards the development of environmental indices for the Namibian shelf, with particular reference to fisheries management.
Provedor de dados: 20
Autores: Bartholomae, Ch.; Van der Plas, A.
The Namibian Ministry of Fisheries and Marine Resources has the task of collecting and providing relevant oceanographic information for management of their fisheries. However, quality information is difficult to provide because of the complexity of the processes involved in the Namibian marine ecosystem. Nonetheless, there are oceanographic data available that can contribute to fisheries management by improving the general understanding of important oceanographic processes related to fisheries. The focus of this paper is on the development of simple environmental indices that can serve as a measurement or proxy of the state or intensity of certain important oceanographic processes or variables for temporal comparison. These indices relate to oceanographic...
Tipo: Journal Contribution
Palavras-chave: Fisheries management; Marine resources; Oceanographic data; Chlorophylls; Upwelling; Spatial variations; Sardine fisheries; Water temperature; El Nino phenomena; Ecosystems; Fish stocks; Surface temperature; Oxygen; Phytoplankton; Biomass; Seasonal variations; Fronts; Perturbations; Commercial fisheries; Catchability; Remote sensing; Chlorophylls; Dissolved oxygen; Environmental impact.
Ano: 2007
URL: http://hdl.handle.net/1834/4971

Impact saisonnier de l'environnement sur la structure génétique de trois populations de ruditapes decussatus dans l'ecosystème lagunaire de Bizerte (Tunisie)
Provedor de dados: 20
Autores: Fassatoui, CH.; Mdelgi-Lasram, E.; Moraga, D.; Romdhane, M.S.
في محاولة لتقييم تأثيرالاضطرابات التي يمكن ان تغير التركيبه الجينيه للمحار ببحيره بنزرت، اجريت تحاليل جينيه على عينات من ثلاثة مجموعات. و قد بينت النتائج تواجد علاقة متبادله بين فقدان التنوع ومستويات métallothionéines في خياشيم المحار التي  يمكن ان تكون مرتبطة مع وجود تدرج الانسياب المحمل بالمعادن الثقيلة بين مناطق منزل جميل،فروة والشعرة.
Tipo: Journal Contribution
Palavras-chave: Ruditapes decussatus; Clam culture; Environmental effects; Environmental impact; Heavy metals; Metallothioneins; Population genetics; Toxicity; Environmental impact; Heavy metals; Population genetics; Toxicity; Biomarkers of exposure (organisms); Http://aims.fao.org/aos/agrovoc/c_24420; Http://aims.fao.org/aos/agrovoc/c_2223; Http://aims.fao.org/aos/agrovoc/c_34326; Http://aims.fao.org/aos/agrovoc/c_7826; Http://aims.fao.org/aos/agrovoc/c_36994.
Ano: 2007
URL: http://hdl.handle.net/1834/4258

The status of persistent organic pollutants in Lake Victoria catchment
Provedor de dados: 20
Autores: Madadi, O.V; Wandiga, S. O; Jumba, I. O.
The use of most organochlorine pesticides has been banned or restricted in the republic of Kenya under the Rotterdam and Stockholm convention due to high levels of persistence in the environment and toxicity to nontarget organisms. Studies conducted in some parts of the country have revealed that residue levels of these compounds are still in the environment. However, the residues of these compounds have not been exhaustively studied in the Lake Victoria catchment area. This study was set to investigate the residues levels of p,p-DDT, o,p’- DDE, p,p-DDD, g-HCH, D-HCH, a-HCH, Aldrin, and Dieldrin, in water samples from Lake Victoria catchment. Samples were collected during the short rain, dry and wet seasons and analysed using gas chromatography equipped...
Tipo: Proceedings Paper
Palavras-chave: Pollutants; Catchment area; Pesticides; Chemical pollutants; Toxicity; Freshwater lakes; Pollution effects; Environmental impact; Inland water environment; Pollutant persistence.
Ano: 2006
URL: http://hdl.handle.net/1834/1475

Evaluación preliminar de la situación respecto de la presencia de ostra cóncava (Cassostrea gigas) en Balneario El Cóndor
Provedor de dados: 20
Autores: Narvarte, M.; Morsan, E.M.
Las invasiones de comunidades marinas por parte de especies no nativas es tema de preocupación creciente entre ecólogos y autoridades de manejo. Entre las especie invasoras se encuentra la ostra cóncava, la que por tolerar amplios rangos de condiciones ambientales, ha colonizado sectores costeros en varios lugares del mundo. En Argentina, esta especie fue introducida en 1982 en Bahía San Blas (Pcia. de Buenos Aires) y a partir del año 2004, ejemplares de esta especie fueron observados por primera vez en la zona norte de Río Negro. En este informe se presentan los resultados de la primera campaña realizada por parte del IBMPAS a la zona de Balneario El Cóndor, y del muestreo llevado a cabo para caracterizar la población allí presente
Tipo: Report
Palavras-chave: Introduced species; Environmental impact; Environmental protection; Biological surveys; Coastal zone management; Environmental impact; Environmental protection; Http://aims.fao.org/aos/agrovoc/c_24420; Http://aims.fao.org/aos/agrovoc/c_15898.
Ano: 2005
URL: http://hdl.handle.net/1834/3716

Hydrologie, sédimentologie et géochimie de l'oued tinja  (Tunisie septentrionale)
Provedor de dados: 20
Autores: Ben Garali, A.; Ouakad, M.; Gueddari, M.
L'oued Tinja relie la garaet Ichkeul à la lagune de Bizerte laquelle communique avec la mer Méditerranée par un long goulet. Les eaux de cet oued dépendent à la fois des apports saisonniers des eaux marine et douce et présente de ce fait, des salinités très fluctuantes. L'important réseau hydrographique associé au plan d'eau de l'Ichkeul (avec un bassin versant très important d'environ 2080 km2) est sujet à de nombreux aménagements hydrauliques, notamment la construction de barrages de retenues d'eau douce. Ces derniers sont susceptibles de perturber les caractéristiques hydrologiques, sédimentologiques et géochimiques du système laguno-lacustre (lagune de Bizerte et garaet Ichkeul) et d'entamer par voie de conséquence sa diversité et sa richesse...
Tipo: Journal Contribution
Palavras-chave: Marine sciences; Quality; Species diversity; Geochemistry; Environmental impact; Hydrology; Freshwater lagoons; Sediment analysis.
Ano: 2008
URL: http://hdl.handle.net/1834/4248

Methodological Guide :Steps and Tools Towards Integrated Coastal Area Management
Provedor de dados: 20
Autores: Hénocque, Y.; Denis, J.
This second volume of a guide to integrated coastal zone management opens a new dimension by discussing the processes involved in a more complete and dynamic way than the first, To fulfil1 this requirement, an expanded work group, drawing upon the knowledge of experts in political science, economics, and sociology, devoted over two years of effort (1999 - 2001) to its completion, following a disciplined working method. A dual principle prevailed in the application of this method. On one hand, it prescribed an approach structured as a series of steps, and on the other, it demanded that real situations be brought to light, emphasizing case studies of experience with or analysis of coastal management.
Tipo: Book
Palavras-chave: Marine Environment Management; Coastal zone; Ecological zonation; Ecosystem management; Environmental factors; Environmental impact; Environmental monitoring; Environmental surveys; Environmental assessment; Marine ecology; Marine environment; Marine sciences; Ecological zonation; Environmental factors; Environmental impact; Environmental monitoring; Marine environment; Environmental assessment; Marine ecology; Marine sciences; Http://aims.fao.org/aos/agrovoc/c_2465; Http://aims.fao.org/aos/agrovoc/c_2594; Http://aims.fao.org/aos/agrovoc/c_24420; Http://aims.fao.org/aos/agrovoc/c_37876; Http://aims.fao.org/aos/agrovoc/c_4610; Http://aims.fao.org/aos/agrovoc/c_37751; Http://aims.fao.org/aos/agrovoc/c_4609; Http://aims.fao.org/aos/agrovoc/c_4613.
Ano: 2001
URL: http://hdl.handle.net/1834/2806

Morphotypes, structure trophique et état de maturité de la nématofaune de la lagune de Bizerte
Provedor de dados: 20
Autores: Mahmoudi, E.; Beyrem, H.; Boufahja, F.; Essid, N.; Hedfi, A.; Aissa, P.
Dix stations côtières ont été prospectées dans la lagune de Bizerte en hiver 2001 pour étudier l’impact des conditions environnementales sur les plans morphométrique, trophique et de maturité des nématodes méiobenthiques. Nos résultats montrent que la croissance en largeur des nématodes libres a été proportionnelle aux charges sédimentaires en fraction fine et en métaux et ce parallèlement à l’individualisation de quatre morphotypes nématologiques. D’autre part, la structure trophique de la nématofaune est liée à la turbidité et aux concentrations des eaux en nitrites. En effet, la proportion en détritivores sélectifs, principalement bactériophages, au sein des communautés nématologiques, est positivement corrélée à la concentration des eaux en nitrites et...
Tipo: Journal Contribution
Palavras-chave: Environmental effects; Feed composition; Indicator species; Pollution monitoring; Sedimentation; Sexual maturity; Turbidity; Nematoda; Environmental impact; Http://aims.fao.org/aos/agrovoc/c_5112; Http://aims.fao.org/aos/agrovoc/c_24420.
Ano: 2006
URL: http://hdl.handle.net/1834/4156

Riesgos ambientales en nuestros lugares de trabajo
Provedor de dados: 20
Autores: Arreaga Vargas, P.
El presente documento describe de manera general los riesgos ambientales que se pueden producir en nuestros lugares de trabajo, como identificarlos, quienes lo hacen y cuales son los beneficios de conocerlos tanto para nuestras instituciones como para cada uno de nosotros como parte de dicha institución. El documento en si recoge las ideas del Boletín 16 DAPHNIA boletín informativo sobre prevención de la contaminación y producción más limpia, editada por el Departamento Condeferal de Ecología y Medio Ambiente de la Confederación Sindical de Comisiones Obreras (CC.OO).
Tipo: Journal Contribution
Palavras-chave: Risks; Environmental impact; Locations (working); Environmental impact; Http://aims.fao.org/aos/agrovoc/c_24420.
Ano: 2004
URL: http://hdl.handle.net/1834/2300

Importance des saisons de transition hydrologique et impact des anomalies climatiques sur l'activité d’une flottille pélagique en ZEE mauritanienne 1985 – 1987
Provedor de dados: 20
Autores: Chavance, P.; Loktionov, Y.; Mahfoudh, M.
Tipo: Journal Contribution
Palavras-chave: Catch/effort; Condition factor; Environmental effects; Environmental impact; Fishery resources; Fishing fleet; Pelagic fisheries; Seasonal distribution; Seasonal variations; Temperature effects; Temporal variations; Upwelling; Environmental impact; Fishery resources; Pelagic fisheries; Http://aims.fao.org/aos/agrovoc/c_24420; Http://aims.fao.org/aos/agrovoc/c_2942; Http://aims.fao.org/aos/agrovoc/c_5659.
Ano: 1989
URL: http://hdl.handle.net/1834/1144

Description de l'activité des flottilles pélagiques industrielles en 1987 dans la ZEE mauritanienne.
Provedor de dados: 20
Autores: Chavance, P.
En 1987, 59 chalutiers pélagiques (62-102 m, 2000 – 3880 cv) ont opéré dans la ZEE mauritanienne. Trois pays sont représentés : l’URSS, la Roumanie et l’Allemagne de l’Est. Les captures totales atteignent 441473 tonnes dont 66,5% est pêchée par les soviétiques, 26,3% par les roumains et 7,2% par les allemands de l’Est. Les chinchards (&lt;Trachirus sp et Decapterus rhonchus&gt;) prédominent dans les captures avec 50,8%, les sardinelles en représentent 14,9% et la sardine 7,7%. L’activité des flottilles est apparue, comme  en 1986, très marquée par les saisons hydrologiques.
Tipo: Journal Contribution
Palavras-chave: Chalutiers pélagiques; Flottilles industrielles; Captures; Saisons hydrologiques; Commercial fishing; Environmental impact; Fishing effort; Fishing fleet; Pelagic fisheries; Seasonal distribution; Seasonal variations; Temperature effects; Temporal variations; Trawling; Upwelling; Environmental impact; Trawling; Fishing effort; Pelagic fisheries.
Ano: 1988
URL: http://hdl.handle.net/1834/1147

El desarrollo del turismo en Celestún, Yucatán, México y sus efectos en el medio ambiente
Provedor de dados: 20
Autores: Ayala Arcipreste, M.E.
El modelo de desarrollo turístico seguido por México durante los últimos 30 años ha privilegiado el concepto del turismo masivo de “sol y playa”, como motor de crecimiento económico y desarrollo a través de polos turísticos sin embargo ha generado graves repercusiones ambientales tanto en detrimento del destino turístico como de la sociedad anfitriona. En la Península de Yucatán particularmente en el estado de Yucatán se están impulsando planes para el desarrollo de nuevos destinos turísticos y cuyas consecuencias a futuro parece no se contemplan. Uno de estos destinos potenciales es Celestún, un ejemplo interesante para el estudio de esta problemática debido en parte a su riqueza natural que confecciona el producto turístico. Nuestro objetivo es plantear,...
Tipo: Conference Material
Palavras-chave: Man-induced effects; Recreation; Environmental impact; Recreation; Environmental impact; Http://aims.fao.org/aos/agrovoc/c_6477; Http://aims.fao.org/aos/agrovoc/c_24420.
Ano: 2006
URL: http://hdl.handle.net/1834/2229

Florecimiento de microalgas relacionado con mortandad masiva de peces en el complejo lagunar Ciénaga Grande de Santa Marta, Caribe colombiano
Provedor de dados: 20
Autores: Mancera-P., José E.; Vidal-V., Luis A.
Entre los meses de julio y agosto de 1994 un fenómeno discontinuo de muerte masiva de peces se registró en aguas del complejo lagunar de la Ciénaga Grande de Santa Marta, Colombia. El primer evento se presentó del 15 al 19 de julio, el segundo alrededor del día 20 de agosto y el tercero entre el 26 y 31 del mismo mes. La presencia en altas concentraciones de la cianofita filamentosa Cf. Anabaenopsis sp., registrada en la literatura como altamente tóxica, podría estar relacionada con las causas del primer evento. Un incremento en las concentraciones de fósforo, y un posterior florecimiento de nano y picoplancton, especialmente cianofíceas y algas flageladas, explicaría en parte las condiciones hipóxicas y anóxicas observadas en el tercer evento, las cuales...
Tipo: Journal Contribution
Palavras-chave: Ecology; Phytoplankton; Chemical analysis; Environmental impact; Coastal lagoons; Estuaries; Ecology; Phytoplankton; Environmental impact; Estuaries; Coastal lagoons; Http://aims.fao.org/aos/agrovoc/c_2467; Http://aims.fao.org/aos/agrovoc/c_13344; Http://aims.fao.org/aos/agrovoc/c_24420; Http://aims.fao.org/aos/agrovoc/c_2673; Http://aims.fao.org/aos/agrovoc/c_1697.
Ano: 1994
URL: http://hdl.handle.net/1834/3787

Implications of climate change on the management of Rift Valley lakes in Kenya. The case of lake Baringo
Provedor de dados: 20
Autores: Ngaira, Josephine K.
Climate patterns of the World became very variable during the last half of the twentieth century. Causes of this variability/change have been identified as: Sun Spot activity, ozone depletion, decline in the solar beam, with the more pronounced especially in Africa being Increased atmospheric carbondioxide, and albedo change due to anthropogenic factors. The most affected weather elements by the above mentioned factors particularly in the tropics are Rainfall and Temperature, and the climatic environments most affected by the named weather elements are the arid and semi-arid lands which are already moisture constrained. The rift valley in Kenya, where most of the lakes are located experience Arid and Semi-Arid climate. The lakes located in this region are...
Tipo: Proceedings Paper
Palavras-chave: Climatic changes; Resource management; Lake basins; Anthropogenic factors; Inland waters; Environmental impact; Water policy; Lake dynamics; Arid environments; Rainfall; Water resources.
Ano: 2006
URL: http://hdl.handle.net/1834/1472

Impacto Ambiental de la Granja Camaronera CALISUR sobre los  ecosistemas de la zona costera del golfo de Guacanayabo, Cuba
Provedor de dados: 20
Autores: Isla Molleda, M.; Arencibia Carballo, G.; Capetillo Piñar, N.; Pérez Santos, I. E.
Se exponen los resultados del estudio de impacto  ambiental llevado a cabo durante 3 años en la zona  costera sur central del golfo de Guacanayabo. El  estudio comprende la evaluación de la calidad de  agua y de los sedimentos de las principales fuentes  de abasto de la granja camaronera CALISUR y la  zona costera adyacente. Los valores obtenidos de  los análisis en agua y sedimentos de las áreas de  estudios permitieron dar una valoración del estado  ambiental de las zonas, revelando el no impacto de  la granja camaronera en la zona costera, salvo en el  sistema lagunar Las Playas, ecosistema muy  deteriorado, dadas sus características como receptor  directo de los residuales camaroneros por el sistema  de producción de la granja. Según los datos...
Tipo: Working Paper
Palavras-chave: Environmental impact; Coastal zone management; Shrimp farming.
Ano: 2006
URL: http://hdl.handle.net/1834/4515

Alteraciones físico-químicas de la columna de agua, generadas por el uso del Boliche (Método de Pesca Artesanal) en la Ciénaga Grande de Santa Marta, Caribe colombiano
Provedor de dados: 20
Autores: Rueda, Mario E.; Mancera-Pineda, José E.
Con el propósito de evaluar los impactos generados por el uso de un método de pesca artesanal denominado "boliche" en la laguna costera tropical Ciénaga Grande de Santa Marta, se cuantificaron diferentes aspectos; uno de los cuales fue orientado a analizar algunas alteraciones físico-químicas de la columna de agua, producidas durante la maniobra de pesca. Se determinó la concentración de oxígeno disuelto, la transparencia del agua y la concentración y composición del seston, antes y después de 70 lances de boliche. Los resultados indican que la maniobra de pesca genera algunos cambios momentáneos de poca repercusión en el ecosistema, tales como resuspensión de partículas principalmente inorgánicas, aumento de la concentración de seston y en consecuencia...
Tipo: Journal Contribution
Palavras-chave: Coastal lagoons; Estuaries; Chemical analysis; Environmental impact; Ecology; Estuarine fisheries; Dissolved oxygen; Seston; Fishing gear; Ecology; Estuaries; Environmental impact; Estuarine fisheries; Dissolved oxygen; Coastal lagoons; Seston; Fishing gear; Http://aims.fao.org/aos/agrovoc/c_2467; Http://aims.fao.org/aos/agrovoc/c_2673; Http://aims.fao.org/aos/agrovoc/c_24420; Http://aims.fao.org/aos/agrovoc/c_2674; Http://aims.fao.org/aos/agrovoc/c_36106; Http://aims.fao.org/aos/agrovoc/c_1697; Http://aims.fao.org/aos/agrovoc/c_6998; Http://aims.fao.org/aos/agrovoc/c_2946.
Ano: 1995
URL: http://hdl.handle.net/1834/3774

Efecto del alga invasora Undaria pinnatifida sobre la comunidad de peces de arrecife en los golfos Norpatagónicos
Provedor de dados: 20
Autores: Irigoyen, A.J.
This study investigates the impact of Undaria pinnatifida on the reef  fish assemblage associated with the coastal rocky reefs of Golfo Nuevo in northern Patagonia, Argentina. Undaria pinnatifida is a laminarian kelp, indigenous to the temperate regions of Japan, China and Korea. It has spread around the world by international shipping and has also been introduced in some regions for mariculture. Its expansion into the northern Patagonian gulfs and Peninsula Valdes, a UNESCO Natural Heritage Site, may threaten eco-tourism activities that depend on local biodiversity and the esthetic quality of the ecosystem. In particular, there is concern about the impact of Undaria on a variety of recreational activities including diving, angling and spear fishing, which...
Tipo: Theses and Dissertations
Palavras-chave: Reef fish; Ecological associations; Introduced species; Habitat; Environmental impact; Environmental monitoring; Census; Undaria pinnatifida; Marine environment.
Ano: 2010
URL: http://hdl.handle.net/1834/4774

Influencia del cultivo del camarón blanco (Litopenaeus schmitti) sobre los ecosistemas costeros
Provedor de dados: 20
Autores: Pérez Santos, I.E.; Arencibia Carballo, G.; Capetillo Piñar, N.; Isla Molleda, M.
In this work the result of the project “Determination of the environmental impact on aquaculture in the coastal zone" is presented. Where there were sampled more than 28 points. The water quality of the ecosystems is studied around the shrimp farms like coastal lagoons, rivers and the coastal area, where the shrimp farm get the water from, and at the same time the waste water of the process is spilled. The obtained values of the analisis in water and silts give a valuation of the environmental state of the area; revealing that the lagoon Las Playas is in a not well environmental state, (salinity of 47 ppt, DQO between 3,26 and 6,14 mg/L, N-NO3 700 - 900 µg/L, ammonium 36 - 148 µg/L and silicates between the 1600 and 3400 µg/L) and silts (carbon and...
Tipo: Journal Contribution
Palavras-chave: Water quality; Shrimp culture; Environmental impact; Ecosystems; Coastal zone; Water quality; Environmental impact; Ecosystems; Http://aims.fao.org/aos/agrovoc/c_16061; Http://aims.fao.org/aos/agrovoc/c_24420; Http://aims.fao.org/aos/agrovoc/c_2482.
Ano: 2003
URL: http://hdl.handle.net/1834/1884

Estudio de impacto ambiental en Punta Fort William, verano austral: 1995-1996, 1997-1998
Provedor de dados: 20
Autores: Valencia T., M.
Durante los veranos australes de 1995-1996 y 1997-1998 se llevó a cabo, en Ensenada Guayaquil, cuerpo de agua aledaño a Punta Fort William, Isla Greenwich, del archipiélago de las Shetland del Sur, lugar del asentamiento de la Estación Científica "Pedro Vicente Maldonado", estudios químicos de la calidad de las aguas tendientes a determinar el eventual impacto que las actividades humanas pudieran ocasionar sobre tal ecosistema. Se presenta información acerca de las condiciones de oxigenación de las aguas, temperatura y salinidad de las mismas, la capacidad nutricia en relación con la concentración de micronutrientes inorgánicos así como información acerca de la presencia de hidrocarburos del petróleo disueltos y dispersos y, para establecer la efectividad...
Tipo: Journal Contribution
Palavras-chave: Environmental impact; Water quality; Hydrocarbons; Waste water; Dissolved oxygen; Chemical analysis; Environmental impact; Water quality; Waste water; Dissolved oxygen; Hydrocarbons; Http://aims.fao.org/aos/agrovoc/c_24420; Http://aims.fao.org/aos/agrovoc/c_16061; Http://aims.fao.org/aos/agrovoc/c_24927; Http://aims.fao.org/aos/agrovoc/c_36106; Http://aims.fao.org/aos/agrovoc/c_3719.
Ano: 1998
URL: http://hdl.handle.net/1834/3850

Evaluacion de factores hidroquimicos indicadores de contaminacion orgánica en la laguna costera del Doctor, Playa Baracoa, Cuba
Provedor de dados: 20
Autores: Perigó Hernández, A.M.; Perigó Arnaud, E.; Montalvo, J.F.; Chang Corona, E.; César Manfarrol, M.E.; García, R.
En la zona costera del municipio Bauta se encuentra la laguna costera el Doctor, cuya calidad se ha visto seriamente dañada por ser receptora de un considerable volumen de residuales crudos (alrededor de 8000 m3) originados por las actividades domésticas de de una Comunidad de alrededor de 5000 habitantes y otras instalaciones comerciales y vivienda que se desarrollan en la margen de la laguna, como consecuencia ocurrió masivas mortandades de peces derivado de las condiciones anóxicas de la laguna (Perigó, et al, 2003, Alcalde et al, 2003). El objetivo de este trabajo es actualizar el conocimiento sobre el estado de la calidad ambiental de la laguna El Doctor a través de variables de estado indicadoras de contaminación orgánica.
Tipo: Conference Material
Palavras-chave: Coastal lagoons; Brackishwater pollution; Organic wastes; Environmental impact; Domestic wastes; Organic wastes; Environmental impact; Domestic wastes; Coastal lagoons; Http://aims.fao.org/aos/agrovoc/c_35237; Http://aims.fao.org/aos/agrovoc/c_24420; Http://aims.fao.org/aos/agrovoc/c_35241; Http://aims.fao.org/aos/agrovoc/c_1697.
Ano: 2006
URL: http://hdl.handle.net/1834/2255

Water quality trends and input loads to Lake Nakuru
Provedor de dados: 20
Autores: Kulecho, Andrew; Muhandiki, Victor.
Water quality trends of Lake Nakuru, Kenya and its feeder streams were monitored in 2001-2004. Water samples were obtained from eleven stations in the lake and five points on inflowing streams. The items monitored were physico-chemical and biological components. The drainage basin was characterized by recurrence of dry spells throughout the period with water losses in the lake exceeding the amount received to cause a fall in water volume. The lake water salts content rose – conductivity and alkalinity reached 58 ms/cm and 5,200 mg/l respectively. PH was more or less constant (10.00 – 10.36). Daytime oxygen concentration in the mid-lake system rose (to greater than 20 mg/l) while remaining low in the inflow portions of the lake. On one occasion, the lake...
Tipo: Proceedings Paper
Palavras-chave: Water quality; Biomass; Mortality causes; Anthropogenic factors; Phytoplankton; Pollution effects; Degradation; Man-induced effects; Inland waters; Freshwater pollution; Physicochemical properties; Inflow; Environmental monitoring; Land use; Urbanization; Environmental impact; Pollution; Freshwater.
Ano: 2006
URL: http://hdl.handle.net/1834/5312

Preliminary assessment of the cocial, economic and environmental impacts of Water Hyacinth in Lake Victoria basin and status of control
Provedor de dados: 20
Autores: Mailu, A.M.
The paper presents preliminary data collected in an assessment of the social, economic and environmental impacts of water hyacinth in the Lake Victoria Basin. A summary of the status of control and strategies for the future is given. The report draws on field observations made, studies through interviews of affected communities and organisations, personal communications and published reports by scientists in the region. Lake Victoria, the world’s second largest freshwater body, supports an estimated 25 million people living in the Basin, with an estimated gross economic product of US$3–4 billion annually, mainly from subsistence agriculture and fishing in Kenya, Uganda, Tanzania, and parts of Rwanda and Burundi. The multiple activities in the Lake Victoria...
Tipo: Proceedings Paper
Palavras-chave: Environmental conditions; Environmental factors; Environmental impact; Environmental protection; Freshwater pollution; Resource management; Environmental factors; Environmental impact; Environmental conditions; Environmental protection; Resource management; Http://aims.fao.org/aos/agrovoc/c_2594; Http://aims.fao.org/aos/agrovoc/c_24420; Http://aims.fao.org/aos/agrovoc/c_32980; Http://aims.fao.org/aos/agrovoc/c_15898; Http://aims.fao.org/aos/agrovoc/c_6524.
Ano: 2001
URL: http://hdl.handle.net/1834/1292

Multisite Record of Climate Change from Indian Ocean Corals
Provedor de dados: 20
Autores: Grumet, N.S.; Dunbar, R.B.; Cole, J.E.
Coral records from coastal East Africa spanning 2° to 7°S (Kiwayu, Malindi, Watamu, Mombasa, Kisite, and Mafia) demonstrate that isotopic tracers preserved within coral aragonite accurately record intraseasonal to interannual changes in sea surface temperature. The strong seasonal signal observed at all six sites most likely reflects sea surface temperature variability forced by ocean circulation and reversals in wind direction associated with the Indo-African Monsoon. Strong southwesterly winds during the Southwest Monsoon initiate evaporative cooling and mixing, resulting in a sea surface temperature minimum in the late boreal summer. Coral δ180 values are higher during this period. Reproducibility in the coral δ180 signal between sites indicates that an...
Tipo: Proceedings Paper
Palavras-chave: Coral reefs; Environmental impact; Climate change; Http://aims.fao.org/aos/agrovoc/c_35367.
Ano: 2000
URL: http://hdl.handle.net/1834/679

Impact of agro-industrial activities on the water quality of River Nyando, Lake Victoria Basin, Kenya
Provedor de dados: 20
Autores: Raburu, P. O.; Okeyo-Owuor, J.B.
The impact of agro-industrial activities on the water quality within River Nyando, Lake Victoria Basin (Kenya) was studied at different hierarchical levels between August 1997 and June 1999. Triplicate water samples were collected on a monthly basis from various stations ranging from the source to the mouth of the river and analyzed for selected physical and chemical water quality parameters using standard analytical methods. Statistical analysis was performed using MINITAB and STATISTICA computer packages. Agricultural land use was found to be the major factor contributing to changes in water quality. Salinity and pH varied at river basin scale, turbidity, TDS and conductivity at catchment scale, while DO, alkalinity and pH at subcatchment and river reach...
Tipo: Proceedings Paper
Palavras-chave: Water quality; Environmental impact; Industrial wastes; Inland waters; Rivers; Anthropogenic factors; River basin management; Statistical analysis; Physicochemical properties; Land use; Limnological data; Environmental monitoring; Resource management; Environment management; Agricultural pollution; Water quality; Environmental impact; Rivers; Statistical analysis; Land use; Environmental monitoring; Industrial wastes; Inland waters; Anthropogenic factors; Physicochemical properties; Resource management; Http://aims.fao.org/aos/agrovoc/c_16061; Http://aims.fao.org/aos/agrovoc/c_24420; Http://aims.fao.org/aos/agrovoc/c_6617; Http://aims.fao.org/aos/agrovoc/c_7378; Http://aims.fao.org/aos/agrovoc/c_4182; Http://aims.fao.org/aos/agrovoc/c_37876; Http://aims.fao.org/aos/agrovoc/c_11763; Http://aims.fao.org/aos/agrovoc/c_3876; Http://aims.fao.org/aos/agrovoc/c_34996; Http://aims.fao.org/aos/agrovoc/c_13330; Http://aims.fao.org/aos/agrovoc/c_6524.
Ano: 2006
URL: http://hdl.handle.net/1834/3501

Mundo Azul
Provedor de dados: 20
Autores: Diez de Oñate, G.; Diez de Oñate, G.
Formación del universo, la vida en el mar, las mareas y otros temas escritos de forma didáctica y con abundantes ilustraciones.
Tipo: Other
Palavras-chave: 1108; Education; Environment management; Environmental assessment; Environmental impact; Aquatic environment; Environmental conditions; Environmental effects; Education; Environmental impact; Environmental assessment; Aquatic environment; Environmental conditions; Http://aims.fao.org/aos/agrovoc/c_2488; Http://aims.fao.org/aos/agrovoc/c_24420; Http://aims.fao.org/aos/agrovoc/c_37751; Http://aims.fao.org/aos/agrovoc/c_554; Http://aims.fao.org/aos/agrovoc/c_32980.
Ano: 2001
URL: http://hdl.handle.net/1834/3994

Aporte contaminante de las aguas residuales de la industria pesquera cubana y su impacto sobre el ecosistema
Provedor de dados: 20
Autores: Romero López, T.
The present paper involves their results in the pollutant contributions to the aquatic ecosystems according to the products processed in different productive facilities of the Cuba Island, and concerning to the most significant fishing resources as lobster, white shrimp, tuna, shark, snapper, mackerel, jack and bill fish. The polluting loads in 12 years (between 1955 and 1999) respond to the indicators BOD, QOD, TP, TNK and N-NH4. The captures for those years were approximately between 3 950 and 23 970 tons, with fluctuations of BOD loads between 56 and 342 tons and of DQO between 111 and 676 tons. The principal nutrients contribution was the nitrogen, followed by the phosphorous and finally the ammonium, representing a total contribution of 136,3; 52,7...
Tipo: Proceedings Paper
Palavras-chave: Fishery industry; Waste water; Environmental impact; Waste water; Environmental impact; Http://aims.fao.org/aos/agrovoc/c_24927; Http://aims.fao.org/aos/agrovoc/c_24420.
Ano: 2006
URL: http://hdl.handle.net/1834/2083

Efecto de diferentes densidades de siembra en el engorde de tilapia roja  (Oreochromis mossambicus x O. aureus) en jaulas colocadas en la bahía  de Casilda, Cuba
Provedor de dados: 20
Autores: Fraga, I.; Flores, E. R.; Reyes, R.; Llanes, Y.
Con el objetivo de evaluar el efecto sobres el crecimiento y la supervivencia, de diferentes densidades de siembra de tilapia  roja en jaulas de diferentes volúmenes (4, 6 y 16 m3) se desarrollaron tres ciclos de engorde en la bahía de Casilda, provincia  Sancti-Spíritus. La selección del sitio se realizó a partir de una red de cinco estaciones muestreadas en lluvia y seca para  determinar los parámetros físico, químicos, batimétricos y turbidez. Los alevines se adaptaron al agua de mar en tanques de  12 m3, con flujo de agua marina (1.4 - 2.8 L/segundo) durante 24 horas con supervivencia de 96%. Al emplear densidades de  73 y 184 alevines/m3 en jaulas de 6 m3, no se observaron diferencias significativas (p&gt; 0.05) en el crecimiento y  supervivencias...
Tipo: Journal Contribution
Palavras-chave: Food; Seawater; Stock density; Cages; Environmental impact; Yield.
Ano: 2012
URL: http://hdl.handle.net/1834/4334

Etudes préliminaires de la deuxième phase du projet  de conservation et de gestion participative des ecosystèmes de mangrove au Cameroun
Provedor de dados: 20
Le terme mangrove se réfère habituellement à un complexe de zones humides influencé par les marées et constitué de forêts marécageuses et autres habitats associés dans la zone intertidale sous les latitudes tropicales et subtropicales. Les écosystèmes forestiers de mangrove subissent des dégradations anthropiques de toutes sortes et de diverses amplitudes. La pression démographique provoque leur destruction et son influence s’accentue dans des zones non protégées, surtout au voisinage des agglomérations où les problèmes fonciers et la pauvreté poussent les populations à occuper des espaces libres à faibles coûts.  Dans sa volonté d’assurer une gestion durable et participative des mangroves au Cameroun, le Gouvernement à travers le Ministère de...
Tipo: Report
Palavras-chave: Mangroves; Environmental impact; Ecosystem management.
Ano: 2010
URL: http://hdl.handle.net/1834/5226

Clonagem de Cnidoscolus quercifolius por alporquia, utilizando rejeito de vermiculita e diferentes concentrações de AIA
Provedor de dados: 190
Autores: Farias Júnior, José Aminthas de; Arriel, Eder Ferreira; Lúcio, Assíria Maria Ferreira da Nóbrega; Freire, Antonio Lucineudo de Oliveira; dos Santos, Rivaldo Vital; Lucena, Rosivânia Jerônimo.
Dotada de grande resistência à seca, Cnidoscolus quercifolius Pohl (faveleira) é uma espécie que pode ser usada como forrageira, medicinal, alimentação humana, biodiesel e para recuperação de áreas degradadas. Entretanto, apresenta dificuldade de enraizamento pela técnica da estaquia e, por isto, foi avaliada a técnica alternativa da alporquia. Os tratamentos foram constituídos por substratos e concentrações de AIA (ácido indolacético). Foi observado um percentual de 46% de enraizamento no rejeito de vermiculita, com ganho significativo de matéria seca radicular. Não houve efeito significativo das doses de AIA, para as variáveis analisadas.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Recursos Florestais; Genética Vegetal Substratos; Fitorreguladores; Semiárido; Impacto ambiental; Rejeito de mineração Substrates; Phytoregulators; Semiarid; Environmental impact; Mining waste.
Ano: 2015
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/449

Growth, yield, water and effluent quality in ponds with different management during tambaqui juvenile production
Provedor de dados: 86
Autores: Silva,Ana Maria Dias da; Gomes,Levy de Carvalho; Roubach,Rodrigo.
The objective of this work was to evaluate the effect of pond management on fish feed, growth, yield, survival, and water and effluent quality, during tambaqui (Colossoma macropomum) juvenile production. Fish were distributed in nine 600 m² earthen ponds, at a density of 8 fish per m²; the rearing period was 60 days. Three different pond management were applied: limed and fertilized (LimFer), limed (Lim), and natural (Nat). Fish were fed with a commercial ration containing 34% crude protein three times daily. There were no significant differences in fish growth or yield. Three main items found in tambaqui stomach were insect, zooplankton and ration, without a significant difference among treatments in proportion. Alkalinity, hardness, and CO2 were greater...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Colossoma macropomum; Growth; Yield; Diet; Environmental impact.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2007000500017

Soil mesoarthropods in areas of coal mining under environmental recovery
Provedor de dados: 86
Autores: Machado,Dayanna do Nascimento; Costa,Ervandil Corrêa; Pedron,Leandra.
Abstract: The objective of this work was to evaluate the soil mesofauna composition in non-mining and in mining areas under environmental recovery with native vegetation and forest planting, in a coalmine in Southern Brazil. Five treatments were evaluated: native vegetation in non-mining area; plantation of Acacia mearnsii in non-mining area; plantation of A. mearnsii in mining area; plantation of Eucalyptus dunnii in non-mining area; and plantation of E. dunnii in mining area. Four soil samples per treatment were collected monthly, during one year. The organisms were extracted using a Berlese funnel with 50-W incandescent light. A total of 23,911 organisms were collected from the soil mesofauna, which were identified and distributed into 13 taxonomic...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acacia mearnsii; Eucalyptus dunnii; Anthropic area; Environmental impact; Forest entomology.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017001201215

Estimation of Sulfentrazone Leaching in Isolated Application and in Mixture with Glyphosate
Provedor de dados: 87
Autores: LANGARO,A.C.; BARROS,J.P.A.; SOUZA,M.F.; SILVA,E.M.G.; SILVA,A.A.
ABSTRACT: As an alternative to control of resistant biotypes, farmers have resorted to the use of herbicides that have residual soil activity and good pre-emergence action. One of the most used mixtures in Brazil is that of sulfentrazone + glyphosate. When a herbicide has a pre-emergence action, small leaching of its molecules is necessary for its superficial incorporation into the soil, where most of the weed seeds are found. However, if excessive leaching occurs, the herbicide may have reduced efficiency in controlling weed, increasing the risks of groundwater contamination. In this study, sulfentrazone leaching was evaluated in columns with soil, in isolated applications and in mixture with formulations of glyphosate (Roundup Ready®, Roundup Ultra® and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Herbicide; Environmental impact; Soil; Bioassay.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100217

Leaching of Picloram in ultisol under different rainfall volumes
Provedor de dados: 87
Autores: Assis,E.C; Silva,A.A; D'Antonino,L; Queiroz,M.E.L.R; Barbosa,L.C.
The present study aimed to evaluate the leaching potential of Picloram in Ultisol columns under different rainfall amounts. For such, 30 treatments were evaluated (one soil associated with three levels of rainfall and ten depths).The experiments were arranged in a split-plot design, in a completely randomized design, with four replications. PVC columns of 10 cm in diameter and 50 cm in length were filled with these soils, moistened, and placed upright for 48 hours to drain the excess water. The herbicide was applied and rainfall simulations were carried out at specified intensities, according to the treatments, to force Picloram leaching. After 72 hours, all the columns were arranged in a horizontal position and opened lengthwise. Then, soil sampling was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Herbicide; Environmental impact; Bioassay.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582011000500021

Selection of Indicator Species of the Tembotrione Sorption in Soils with Different Attributes
Provedor de dados: 87
Autores: FARIA,A.T.; SILVA,E.M.G.; PEREIRA,G.A.M.; SOUZA,M.F.; SILVA,A.A.; REIS,M.R.
ABSTRACT: Studies on herbicide behavior in soils may be performed using biological and chemical methods. The efficiency of the biological method depends on the indicator species sensitivity to low herbicide concentrations in the soil solution. Among the herbicides commonly used in Brazil for corn cultivation, tembotrione stands out. In the last agricultural seasons, the intoxication of some crops when cultivated in succession to corn has been reported, which may be attributed to tembotrione recommendations without the knowledge of their interactions with colloids of tropical soils. In this research, we selected an indicator plant species of tembotrione residues in the soil after sorting 12 species. The sorption of this herbicide was estimated in two...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bioassay; Environmental impact; Herbicides; Technical efficiency.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582018000100327

Sorption and Desorption of Diuron, Hexazinone and Mix (Diuron + Hexazinone) in Soils With Different Attributes
Provedor de dados: 87
Autores: SOUSA,G.V.; PEREIRA,G.A.M.; TEIXEIRA,M.F.F.; FARIA,A.T.; PAIVA,M.C.G.; SILVA,A.A.
ABSTRACT: In Brazil, sugarcane is grown in large areas. Weed control in sugarcane fields is done by chemical method, since it is more efficient and less expensive. In this method, herbicides that persist in the environment for long periods are used, among which there are hexazinone and diuron, which are applied in mixtures marketed by the industry. This research evaluated the sorption and desorption of hexazinone and diuron applied alone and in mixture, in two samples of Red-Yellow Latosols (LVAG and LVAV) and a Organosol (OR), with and without manure. Sorption isotherms were built using the batch equilibrium method and the identification and quantification of herbicides was obtained through a high-performance liquid chromatography (HPLC) with UV-Vis...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Herbicide; Behavior in soil; Environmental impact.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582018000100293

Sorption and Desorption of Tembotrione and its Metabolite AE 1417268 in Soils with Different Attributes
Provedor de dados: 87
Autores: FARIA,A.T.; FIALHO,C.A.; SOUZA,M.F.; FREITAS,N.M.; SILVA,A.A.
ABSTRACT: Tembotrione is registered in Brazil for maize and is used in large areas of the country in each harvest. In recent years, producers have reported carryover effects of this herbicide in succeeding crops to maize. This fact can be attributed to tembotrione recommendations without knowing their interactions with tropical soils colloids. In this study, using high-performance liquid chromatography, it was possible to evaluate the influence of chemical and physical attributes on the sorption and desorption of tembotrione, as well as its metabolite AE 1417268, on seven soils from different regions of Brazil. The coefficients referring to sorption and desorption, as well as the hysteresis index (Kf, 1/n and H) of tembotrione and its metabolite were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Herbicide; Sorption coefficient (Kf); Hysteresis; Environmental impact.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100293

Sorption of fomesafen in Brazilian soils
Provedor de dados: 87
Autores: Silva,G.R.; D'Antonino,L.; Faustino,L.A.; Silva,A.A.; Ferreira,F.A.; Texeira,C.C.
The study of the dynamics of a herbicide in the soil focus on the interactions with environmental components to obtain agronomic efficiency, ensuring selectivity to the culture and risk reduction of environmental impact. This study evaluated the sorption process of fomesafen in the Brazilian soils Ultisol, Cambisol, and Organosol. Besides soil, washed sand was used as an inert material for determination of the sorption ratio of fomesafen in the soil. The bioassay method was applied, using Sorghum vulgare plants as bio-indicator of herbicide presence. Plant poisoning evaluation and harvest for dry matter determination were carried out 21 days after sorghum sowing. To calculate C50, the nonlinear log-logistic model was applied and sorption ratios of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bioassay; Carryover; Environmental impact.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582013000400023

Clomazone Leaching Estimate in Soil Columns Using the Biological Method
Provedor de dados: 87
Autores: PEREIRA,G.A.M.; BARCELLOS JR.,L.H.; GONÇALVES,V.A.; SILVA,D.V.; SILVA,A.A.
ABSTRACT The chemical control of weed is a necessary practice in large-scale agriculture. However, when herbicides are used in the wrong way, they can remain into soil for long periods and/or be leached in its profile, and they may even contaminate groundwater. In this research, clomazone leaching in soil samples collected from different Brazilian regions was estimated by biological method. To do so, columns containing soils were used, and samples were collected every 5 cm. After preparing columns and applying a 1,500 g a.i. ha-1 clomazone dose, rain simulation was performed. Sorghum was used in order to detect the herbicide. More than 60% similarity was found for the studied variables; it was chosen to use only data referring to toxicity percentage....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Herbicide; Mobility in soil; Environmental impact.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582017000100225

Controlled Release of TBH Herbicide Encapsulated on Ca-ALG Microparticles: Leaching and Phytointoxication Plants
Provedor de dados: 87
Autores: MACEDO,D.F.; DOURADO JR.,S.M.; NUNES,E.S.; MARQUES,R.P.; MORETO,J.A.
ABSTRACT: The aim of this work was to demonstrate a detailed study of the controlled release of the herbicide Tebuthiuron (TBH) encapsulated in microparticles of calcium alginate (Ca-ALG), to evaluate the phytotoxicity in different concentrations of herbicide (4, 6 and 8 g L-1), and their correlation with the depth of leaching using bioindicator plants. The Ca-ALG microparticles were prepared from the crosslinking of sodium alginate by Ca++ containing varied amounts of TBH supplied in calcium chloride (CaCl2) aqueous solution. The results showed that TBH herbicide, when encapsulated, leached to shallow depths relative to the conventional, non-encapsulated herbicide (which moved to a depth of 40-50 cm). The concentration of 4 g L-1 was the one that leached...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pesticides; Biodegradable polymer; Environmental impact; Encapsulation; Agriculture.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100266

Tembotrione Half-Life in Soils with Different Attributes
Provedor de dados: 87
Autores: SILVA,E.M.G.; FARIA,A.T.; MARULANDA,N.M.E.; PEREIRA,G.A.M.; SARAIVA,D.T.; REIS,M.R.; SILVA,A.A.
ABSTRACT: Before recommending an herbicide, it is necessary to know its interactions with the soil attributes that will influence its sorption and half-life in the soil. This knowledge is an essential condition for minimizing any negative effects that may result from its application. However, due to the great diversity of soil and climate in Brazil, especially for products of recent use in the country, such as the herbicide tembotrione, this knowledge is often not available. This may be the main cause of occurrence of intoxication reports in crops carried out in succession to corn sprayed with this herbicide. In order to reduce possible impacts on successor crops and the contamination of surface and groundwater using the high-performance liquid...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Herbicide; Environmental impact; Persistence in soil.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100271

Managing nitrate pollution in a Tunisian irrigated area: A multi-criteria analysis approach
Provedor de dados: 31
Autores: Laajimi,   Abderraouf; Ben Nasr,   J.; Ferchichi,   M.
In Tunisia, the extension of irrigated area is justified by its important role in the development and diversification of agricultural production. Nevertheless, the strong intensification of the agricultural activities may lead to the pollution of underground water resources due to an excess use of fertilisers and other chemical products. In fact, the high nitrate concentrations observed in some Tunisian irrigated areas, are related to the excessive use of nitrate fertilizers in intensive agriculture. The objective of the present study is to implement decision-making methods allowing a better combination of factors production by optimization of an economic objective and an environmental objective. This research is based on multi-criteria modelling through...
Tipo: Conference Paper or Presentation
Palavras-chave: Nitrate pollution; Environmental impact; Multicriteria analysis; Environmental Economics and Policy.
Ano: 2008
URL: http://purl.umn.edu/44186

Analysis of Climate Change Perception and Adaptation among Arable Food Crop Farmers in South Western Nigeria.
Provedor de dados: 31
Autores: Apata,   Temidayo Gabriel; Samuel,   K.D.; Adeola,   A.O.
This study acknowledges the comments of Dr(Mrs) Olasimbo Apata and Dr. M.A.Y. Rahji. financial assistance of JABU Management is also acknowledge.
Tipo: Conference Paper or Presentation
Palavras-chave: Environmental impact; Agricultural occupation; Perception; Adaptation.; Community/Rural/Urban Development; Productivity Analysis; Teaching/Communication/Extension/Profession.
Ano: 2009
URL: http://purl.umn.edu/51365

Avaliação dos Impactos Econômicos, Sociais e Ambientais da Poedeira Colonial Embrapa 051
Provedor de dados: 31
Autores: Miele,   Marcelo; Girotto,   Ademir Francisco; Palhares,   Julio Cesar Pascale; Pereira de Figueiredo,   Elsio Antonio; Saatkamp,   Marcio Gilberto.
The limited resources for agricultural research and the need for a better knowledge about the ways that technologies change agribusiness competitiveness and its social and natural environment, demand its impacts assessment. The aim of this study was to realize economic, environmental, social and organizational impact assessment of the laying hen Embrapa 051, developed by the Brazilian Agricultural Research Company. This project started on 2000.
Tipo: Conference Paper or Presentation
Palavras-chave: Economic impact; Environmental impact; Genetic improvement; Laying hen; Social impact; Agribusiness; Research and Development/Tech Change/Emerging Technologies.
Ano: 2008
URL: http://purl.umn.edu/96280

Social Versus Private Efficiency: A Comparison of Conventional and Organic Farming Systems in Vineyard Production
Provedor de dados: 31
Autores: Arandia Miura,   Amaia; Aldanondo-Ochoa,   Ana.
Organic farming may be seen as an alternative approach to agriculture that tries to integrate environmental concerns in management practices. By means of DEA, in this work we calculate and compare the efficiency of two samples of conventional and organic vineyards, from two different perspectives: in the first instance, the relationship between inputs and outputs is considered, exclusively, that is, the private efficiency; in the second instance, social efficiency is calculated, and the environmental impacts arising from the activity are also included. The comparison of the results obtained in these two scenarios allows us to draw some conclusions on the efficiency of organic farming in dry-farming conditions.
Tipo: Conference Paper or Presentation
Palavras-chave: Organic farming; Efficiency; Environmental impact; Crop Production/Industries; Farm Management.
Ano: 2008
URL: http://purl.umn.edu/44416

Analysis of Regional Differences of Energy Footprint in China Based on STIRPAT Model
Provedor de dados: 31
Autores: Li,   Qi; Han,   Ya-fen; Chen,   Jian-yong.
On the basis of the previous researches and the ecological footprint theory, we use the cross-sectional data of Chinese energy consumption in 2007 to calculate the regional differences of energy consumption footprint of 30 provinces in China; by using the method of EEF calculation method, we calculate the regional distribution of EFI and analyze its law; through the construction of STIRPAT model, we reveal the relationship between EEF and factors of population and economy. The results show that provinces with higher EFF are mainly concentrate in the Middle Eastern China, which have a developed industry, such as Shandong, Hebei, and Liaoning Province and so on.  However, provinces with lower EFF mainly concentrated in Western China, which have a relatively...
Tipo: Journal Article
Palavras-chave: China; EEF; Regional differences; Environmental impact; STIRPAT model; Agribusiness.
Ano: 2010
URL: http://purl.umn.edu/94277

A biobrikett mezőgazdasági előállítása és felhasználásának lehetőségei
Provedor de dados: 31
Autores: Hagen,   Istvan Zsombor; Magyary,   Istvan.
A már bekövetkezett és a jövőben is várható energiahordozó árváltozások következtében minden bizonnyal nagy kereslet várható ezen környezetbarát tüzelőanyag iránt. Egyben a fafeldolgozást végző kis- és középüzemek (elsősorban asztalosipari vállalatok, vállalkozások) a hulladék hasznosításának egy újabb, jövedelemforrást biztosító megoldásaként alkalmazhatják a fahulladék brikettáló gépeket. A brikettgyártás elterjedésére hazánk mezőgazdasági és ipari adottságai kiválóak, így fontos, hogy éljenek az ebben rejlő lehetőségekkel, különösen olyan környezetben, mely megköveteli az ésszerű és hatékony energiagazdálkodást.             -              As a result of the fuel price changes that have already taken place and which can be expected in the future, this...
Tipo: Journal Article
Palavras-chave: Melléktermékek; Biobrikett; Környezeti hatás; Felhasználási lehetőségek; By-product; Biobriquette; Environmental impact; Opportunities for utilisation; Agricultural Finance; Land Economics/Use.
Ano: 2008
URL: http://purl.umn.edu/57730

Environmental Implications of the Tourism Industry
Provedor de dados: 31
Autores: Davies,   Terry; Cahill,   Sarah.
This report analyzes the environmental impacts of the tourism industry, which is the third largest retail industry in the United States, behind only automotive dealers and food stores. In 1998, travel and tourism contributed $91 billion to the U.S. economy, supporting 16.2 million jobs directly and indirectly. While extensive research has documented the significant economic impact of such service industries as tourism, little has been written about their effect on environmental quality. This study uses a framework developed from the industrial ecology literature to assess the impacts of the tourism industry on the environment. Three categories of impact are discussed: direct impacts, including impacts from the travel to a destination, the tourist...
Tipo: Working or Discussion Paper
Palavras-chave: Tourism; Environmental impact; Upstream and downstream leverage; Service sector; Sector environmental profile; Environmental Economics and Policy.
Ano: 2000
URL: http://purl.umn.edu/10824

ASPECTOS ECONÔMICOS E AMBIENTAIS DA UTILIZAÇÃO DO AMENDOIM FORRAGEIRO PARA A RECRIA-ENGORDA DE BOVINOS DE CORTE NO ACRE
Provedor de dados: 31
Autores: Sa,   Claudenor Pinho De; Bayma,   Marcio Muniz Albano; Carneiro Junior,   Jose Marques.
Este trabalho propõe analisar o retorno econômico e o impacto ambiental da atividade recria e engorda na pecuaria de corte, resultantes da utilização do amendoim forrageiro nas pastagens no Acre. Para determinar o retorno econômico foi estimado o benefício econômico gerado pelo sistema que utiliza o amendoim forrageiro em pastagens já estabelecidas, tendo como parâmetro o sistema que utiliza pastagens formadas com o “capim estrela” (Cynodon nlemfuensis). A avaliação dos impactos ambientais foi realizada em conformidade com o sistema de avaliação de impacto ambiental da inovação tecnológica agropecuária (AMBITEC-AGRO). Os resultados mostram que o Índice de Impacto Ambiental médio da inovação tecnologica foi positivo. Portanto, a tecnologia, no aspecto...
Tipo: Conference Paper or Presentation
Palavras-chave: Retorno econômico; Impacto ambiental; Amendoim forrageiro; Economic return; Environmental impact; Peanut forage; Livestock Production/Industries.
Ano: 2008
URL: http://purl.umn.edu/109227

Review on Suitability of Available LCIA Methodologies for Assessing Environmental Impact of the Food Sector
Provedor de dados: 31
Autores: Amani,   Pegah; Schiefer,   Gerhard.
Production, processing, distribution, and consumption of a wide variety of products in the food sector have different ranges of environmental impacts. Methodologies used in environmental impact assessment differ in which set of impact categories is covered and which models are used to assess them. In the food sector, life cycle assessment results are mostly presented without any clear distinction of the principles applied to selecting the relevant methodology. In this paper, the most relevant life cycle impact assessment methodologies are determined from the list of recommended methodologies published recently in the international reference life cycle data system (ILCD) handbook. The range of the relevant impacts covered is considered as the main indicator...
Tipo: Article
Palavras-chave: Food chain sustainability; Environmental impact; Life cycle impact assessment (LCIA); LCIA methodologies; Agribusiness; Agricultural and Food Policy; Farm Management; Food Consumption/Nutrition/Food Safety; Food Security and Poverty; Institutional and Behavioral Economics; Resource /Energy Economics and Policy; Risk and Uncertainty.
Ano: 2011
URL: http://purl.umn.edu/121858

Issues, impacts, and prospects of the first transgenic crops tolerant to a herbicide. The case of glyphosate-tolerant soybean in the USA
Provedor de dados: 31
Autores: Bonny,   Sylvie.
IAAE 2009 International Conference
Tipo: Conference Paper or Presentation
Palavras-chave: Genetically modified crop; GMO; Biotechnology; Agro-economic impact; Environmental impact; Sustainability; Soybean; Pesticide; Weed; Prospects; Herbicide; Glyphosate; Agricultural and Food Policy; Crop Production/Industries; Environmental Economics and Policy; Production Economics; Research and Development/Tech Change/Emerging Technologies; Q55; O3; O13; O51.
Ano: 2009
URL: http://purl.umn.edu/51449

A Genetically Engineered Crop's Impact on Pesticide Use: A Revealed-Preference Index Approach
Provedor de dados: 31
Autores: Sydorovych,   Olha; Marra,   Michele C.
A revealed-preference-based method is proposed for assessment of the environmental and human health impact of genetically engineered (GE) crops.  This method employs the relative pesticide toxicity information from farmers' pesticide choices combined with volume of pesticides as an alternative to previous methods which are based on volume only, on number of pesticide applications, or on stated preferences.  The method is applied to estimate the changes in the impact of herbicides after environmental and health perspective.  The results indicate that, on average, a reduction in herbicide human heath and environmental impacts occurs when farmers adopt RR soybean varieties.
Tipo: Journal Article
Palavras-chave: Environmental impact; Genetically engineered crops; Pesticide risk index; Revealed preference information; Roundup Ready soybeans; Crop Production/Industries; Research and Development/Tech Change/Emerging Technologies.
Ano: 2007
URL: http://purl.umn.edu/7083

Litter characteristics and pododermatitis incidence in broilers fed a sorghum-based diet
Provedor de dados: 89
Autores: Carvalho,CMC; Litz,FH; Fernandes,EA; Silveira,MM; Martins,JM da S; Fonseca,LA; Zanardo,JA.
The aim of this study was to evaluate the incidence of footpad dermatitis and quality of broilers litter fed with sorghum grain and diets based in corn. It was used 544 male and female chicks, distributed in a completely randomized design with two treatments and eight replications. The chicken feed was formulated and produced from corn, soybean meal and sorghum grain. In the formulation were kept constant levels of energy and protein in accordance with the following treatments: A. Control (diet based on corn and soybean meal); B. Grain sorghum (Whole Sorghum + soybean meal). At 35 and 42 days were evaluated mineral matter (A %), calcium (Ca%), phosphorus (P%), pH and dry matter (DM %) of the poultry litter. To evaluate the footpad dermatitis were evaluated...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Turkey; Enteritis; Viruses; Poults; Diagnosis; Calcium; Environmental impact; Phosphorus.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2014000300010

Changes in chemical properties of distrophic Red Latosol as result of swine wastewater application
Provedor de dados: 91
Autores: Cabral,Juarez R.; Freitas,Paulo S. L. de; Rezende,Roberto; Muniz,Antonio S.; Bertonha,Altair.
Swine wastewater (SW) has characteristics that allow its disposal in the soil as a fertilizer. This is an alternative in order not to accumulate this material in the farm as well as it provides savings with mineral fertilizers. The aim of this study was to evaluate the effect of applying swine wastewater on the chemical properties of a distrophic Red Latosol for two seasons. The experiment was carried out under field conditions with treatments defined as T0 = 0 (control), T1 = 150, T2 = 300, T3 = 450, T4 = 600, T5 = 750 m3 ha-1 of SW applied during the crop cycle of elephant grass. SW application contributed to the increase of magnesium and phosphorus and the reduction of soil aluminum in the first season. As for the second season when compared to the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Effluent; Environmental impact; Leaching.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662014000200012

Evaluation of proposed integrated diseases management strategies in blackberry cultivation according to its sustainability
Provedor de dados: 94
Autores: Narváez,Yimmy Alexander Zapata; Beltrán-Acosta,Camilo Rubén.
Abstract  The production of blackberry in Colombia is a source of income and rural employment in 18 departments; however, the plant is affected by diseases such as gray mold, anthracnose and powdery mildew that can cause losses of up to 70%. The control of these diseases is mainly carried out with chemical fungicides such as benomyl, carbendazim and mancozeb applied every 7 or 15 days. Nevertheless, being a continuous fructification plant of weekly harvest, the proximity between the application of the pesticides, the harvest, and its consumption represents a health risk due to the residually of these molecules, condition that affects its innocuousness and sustainability. Accordingly, this work aimed to develop an integrated management strategy for these...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Control; Efficacy; Food safety; Environmental impact; Residuality.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452019000500406

Relationship between bird-of-prey decals and bird-window collisions on a Brazilian university campus
Provedor de dados: 103
Autores: Brisque,Thaís; Campos-Silva,Lucas Andrei; Piratelli,Augusto João.
ABSTRACT Bird-window collisions are a dramatic cause of bird mortality globally. In Latin America, statistics are generally very scarce and/or inaccessible so the frequency of such incidents is still poorly understood. Nevertheless, civilians have applied preventive methods (e.g. adhesive bird-of-prey decals) sparsely but, to our knowledge, no study has evaluated their effectiveness in Brazil. Here, we estimated the mortality rate of bird-window collisions and tested the effectiveness of bird-of-prey decals at preventing such accidents. We undertook daily searches for bird carcasses, presumably resulting from window collisions, near all buildings on a university campus over seven months. Adhesive bird-of-prey decals were then applied to the two buildings...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Environmental impact; Fauna depreciation; Human-made environment; Neotropical; Preventive actions; Urban birds.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702017000100310

Carbon footprint in commercial cultivation of marine shrimp: a case study in southern Brazil
Provedor de dados: 96
Autores: Belettini,Frank; Seiffert,Walter Quadros; Lapa,Katt Regina; Vieira,Felipe do Nascimento; Santo,Carlos Manoel do Espírito; Arana,Luis Alejandro Vinatea.
ABSTRACT A life-cycle assessment was conducted during semi-intensive and super-intensive commercial cultivation of marine shrimp from December 2011 to June 2012, considering all phases from the preparation of the nursery to harvesting of the shrimp, to determine the carbon footprints of each process. Inputs and outputs associated to the production of 1 kg of shrimp were evaluated using the CML-1A baseline method, V3.01 EU25, with Software SimaPro® 8.0.2, to identify the factors of impact that are most relevant to the category global warming, measured in kg of CO2 eq. The grow-out phase contributed the most to the final results in super-intensive culture, which had a higher carbon footprint, 47.9967 kg of CO2 eq., which was 1.0042 kg of CO2 eq. in the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Environmental impact; Life-cycle analysis; Litopenaeus vannamei; Semi-intensive culture; Super-intensive culture.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982018000100102

Technologies to mitigate the environmental impact of broiler production
Provedor de dados: 96
Autores: Oviedo-Rondón,Edgar O.
The broiler industry produces efficiently animal protein, but generates residues with high contents of N, P, K, trace minerals, and high bacterial charge. The rapid microbial decomposition of these residues cause ammonia volatilization, nuisance odor, fine particulate matter, and attract insects and rodents. This presentation will discuss the more effective methods to utilize these resources and minimize potential environmental impact. These procedures include planning, personnel training, zoning of areas used to dispose the final residues in crop lands, farm isolation, precision nutrition, litter and house management practices, and appropriate mortality disposal. Broiler litter has been used for animal feeding and power generation. Additionally, new...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Environmental impact; Residues; Broilers; Ammonia; Odor.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982008001300028

LIVESTOCK PRODUCTION AND DIFFUSE POLLUTION IN A VOLCANIC SOIL
Provedor de dados: 127
Autores: Alfaro,Marta; Salazar,Francisco.
In developed countries, intensive grazing has been related to water pollution. The results of several projects carried out on a volcanic soil of the Osorno soil series on beef grazing production systems have shown that grazing management did not increase total nitrogen (N) and phosphorus (P) transfer and losses. Due to the high water infiltration capacity of the soil, runoff was &lt;1% of total drainage, therefore, N and P losses in runoff were small. Nitrogen leaching losses were high (3 up to 71 kg N ha-1 yr-1). Nitrogen loss in runoff was mainly lost as DON (c. 50%) while N leaching losses were mainly as nitrate (c. 70%). Total P losses ranged between 1 and 22 g P ha-1 yr-1 and they increased with increasing field slopes. Phosphorus was mainly lost as...
Tipo: Journal article
Palavras-chave: Nitrogen; Phosphorus; Dairy production; Beef production; Environmental impact.
Ano: 2008
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-27912008000200002

Rice herbicide monitoring in two Brazilian rivers during the rice growing season
Provedor de dados: 63
Autores: Marchesan,Enio; Zanella,Renato; Avila,Luis Antonio de; Camargo,Edinalvo Rabaioli; Machado,Sérgio Luiz de Oliveira; Macedo,Vera Regina Mussoi.
Irrigated rice production can involve environmental contamination with pesticides due to the proximity of the fields to rivers and to management problems. During three years (2000 to 2003) the rice herbicides clomazone, propanil and quinclorac were quantified in water during the rice growing season, in the Vacacaí and Vacacaí-Mirim Rivers, located in Rio Grande do Sul (RS) State, Brazil. Water samples were taken at several locations in each river, selected by their importance in terms of rice drainage area. The samples were analyzed by HPLC-UV. At least one herbicide was detected in 41% of the samples from the Vacacaí River and 33% from the Vacacaí-Mirim River. The most frequent herbicide in both rivers and in each year was clomazone. The amount of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Clomazone; Environmental impact; Pesticides; Propanil; Quinclorac.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162007000200005

The risk of erosion in Brazilian cultivated pastures
Provedor de dados: 63
Autores: Sparovek,Gerd; Correchel,Vladia; Barretto,Alberto G.O. Pereira.
Pastures are normally associated with minor erosion problems because of their efficient soil cover. Soil cover is without doubt the most effective inter-rill and rill erosion control practice. However, considering the frequency at which pastures are replanted in Brazil and their enormous territorial extension (178 million hectares) we identify that extensive areas, usually covered by pastures, will remain bare, intensively tilled, and without complementary mechanical soil control practices. The pasture area is equivalent to that occupied by most important Brazilian annual crops (corn or soybeans), that are usually cultivated under no-tillage or supported by governmental soil conservation programs. The precise assessment of these impacts, caused by the...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Environmental impact; Soil conservation research.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162007000100012

Agricultural use of treated sewage effluents: agronomic and environmental implications and perspectives for Brazil
Provedor de dados: 63
Autores: Fonseca,Adriel Ferreira da; Herpin,Uwe; Paula,Alessandra Monteiro de; Victória,Reynaldo Luiz; Melfi,Adolpho José.
In many studies worldwide the use of treated sewage effluents (TSE) as water and nutrient sources in agricultural irrigation have been introduced as a viable alternative for wastewater destination in the environment. Considering agronomic and environmental aspects the objectives of this review were: (i) to present an overview of TSE irrigation on different agro-systems (annual crops, orchards, forests and forages); and (ii) to show the principal changes on chemical, physical and microbiological soil characteristics after TSE application. Various studies have revealed that the nutrient supply only by TSE irrigation was not sufficient to meet plant nutrient requirements resulting in yield decreases. The problem could be solved by an adapted...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Wastewater; Water reuse; Nutrient source; Agriculture; Environmental impact.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162007000200014

Model-predicted ammonia emission from two broiler houses with different rearing systems
Provedor de dados: 63
Autores: Lima,Nilsa Duarte Silva; Garcia,Rodrigo Garófallo; Nääs,Irenilza Alencar; Caldara,Fabiana Ribeiro; Ponso,Roselaine.
Ammonia (NH3) emissions from broiler production can affect human and animal health and may cause acidification and eutrophication of the surrounding environment. This study aimed to estimate ammonia emissions from broiler litter in two systems of forced ventilation, the tunnel ventilation (TV) and the dark house (DH). The experiment was carried out on eight commercial broiler houses, and the age of the birds (day, d), pH and litter temperature were recorded. Broilers were reared on built-up wood shaving litter using an average flock density of 14 bird m–2. Temperature and relative humidity inside the broiler houses were recorded in the morning during the grow-out period. A factorial experimental design was adopted, with two types of houses, four replicates...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Noxious gases; Environmental impact; Dark house; Poultry; Tunnel ventilation.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162015000500393

Camouflaging of seeds treated with pesticides mitigates the mortality of wild birds in wheat and rice crops
Provedor de dados: 63
Autores: Almeida,Alexandre de; Couto,Hilton Thadeu Zarate do; Almeida,Álvaro Fernando de.
Seeds used to plant wheat, corn and rice crops in Brazil are treated with the insecticide carbofuran associated with the dye rhodamine B, attracting granivorous birds and causing mortality during sowing. The objective of this study was to evaluate if using camouflaged seeds can minimize mortality caused by the ingestion of seeds with carbofuran. Alternatives for reducing mortality, such as using carbofuran without rhodamine B or replacing carbofuran by carbosulfan, were compared. Three experiments were carried out in regions of known bird mortality in the states of Paraná and São Paulo, Brazil, using conventional sowing over plowed soil in the traditional planting system, 15,896 kg of seeds in 111.46 ha. Bird carcasses were collected and dissected to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zenaida auriculata; Carbofuran; Rhodamine B; Carbosulfan; Gustatory repellents; Environmental impact.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162010000200008

Enzyme complex supplementation in different nutrient levels diets on pigs feces excretion and anaerobic digestion
Provedor de dados: 63
Autores: Ruiz,Urbano dos Santos; Thomaz,Maria Cristina; Lucas Júnior,Jorge de; Pascoal,Leonardo Augusto Fonseca; Watanabe,Pedro Henrique; Amorim,Alessandro Borges; Xavier,Cristiane de Almeida Neves; Silva,Adriane Andrade.
ABSTRACT This research aimed to evaluate enzyme supplementation in diets with different nutritional levels for pigs in their feces excretion and anaerobic digestion. Fifty four gilts were placed on diets formulated to achieve 100 or 95 or 90 % of a pig's nutrient requirements, with the addition of an enzyme complex containing amylase, β-glucanase, cellulase, pectinase, xylanase, protease and phytase (diets 100E, 95E and 90E) or without the enzymes (diets 100, 95 and 90). The trial was divided into three periods (1, 1-2 and 1-3) based on the animal weight. The enzyme complex reduced (p &lt; 0.05) excretions per period and per unit of weight gain (residue coefficients) of organic matter (OM) in Period 1, of N, Ca, Zn and Na in Period 1-2, and of Na...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biogas; Environmental impact; Fecal production; Swine.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162017000300180

Evidence of mutagenic and lethal effects of herbicides on Amazonian frogs
Provedor de dados: 36
Autores: FERRANTE,Lucas; FEARNSIDE,Philip M.
ABSTRACT Amphibians are excellent bioindicators because they are sensitive to chemical pollution and can indicate ecosystem changes due to the presence of or exposure to chemical compounds. Here we report evidence of the impact of herbicides, including glyphosate, on amphibians in a locality in the central Brazilian Amazon and compare it with data from other biomes in Brazil. We observed malformations in three species of Leptodactylus and local extinctions of Scinax ruber and Rhinella marina from reproductive sites close to an area where herbicides had been applied. The observations in the Amazon are similar to reports from Brazil’s Atlantic forest on morphological anomalies and mortality in amphibians exposed to herbicides. We warn of the threat of...
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Agrochemicals; Amazon Forest; Anurans; Bioindicators; Ecotoxicology; Environmental impact.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000400363

Manure production and mineral excretion in feces of gilts fed ractopamine - doi: 10.4025/actascianimsci.v35i3.18662
Provedor de dados: 2
Autores: Watanabe, Pedro Henrique; Universidade Estadual Paulista “Júlio de Mesquita Filho”; Thomaz, Maria Cristina; Universidade Estadual Paulista “Júlio de Mesquita Filho”; Pascoal, Leonardo Augusto Fonseca; Universidade Estadual Paulista “Júlio de Mesquita Filho”; Ruiz, Urbano dos Santos; Universidade Estadual Paulista “Júlio de Mesquita Filho”; Daniel, Everton; Universidade Estadual Paulista “Júlio de Mesquita Filho”; Amorim, Alessandro Borges; Universidade Estadual Paulista “Júlio de Mesquita Filho”.
A study was conducted to evaluate the feces+urine produced per animal (FUPA), dry matter, mineral matter, organic matter, nitrogen, phosphorus, potassium and sulfur in feces of gilts fed diets with increasing levels of ractopamine (0, 5, 10 and 15 mg kg-1 of diet). A total of 468 finishing gilts were allotted into 36 pens. In two days of each week, feces and urine were daily sampled in four pens per treatment, quantifying the feces+urine. To determine the characterization of feces, two samples per week were taken daily, in nine pens per treatment. It was used a split plot design, considering the ractopamine level as the plot and the weeks as the subplots. There was no reduction in nitrogen amount in feces. An interaction was detected between ractopamine...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nutrição animal; Nutrição de não-ruminantes; Additive; Environmental impact; Finishing; Mineral; Sus scrofa Additive; Environmental impact; Finishing; Mineral: Sus scrofa.
Ano: 2013
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/18662

Caracterização das condições ambientais de um rio neotropical a partir da densidade, composição e riqueza de taxa de invertebrados bênticos - DOI: 10.4025/actascibiolsci.v31i4.4844
Provedor de dados: 3
Autores: Mormul, Roger Paulo; UEM; Junior, Sidnei Pressinatte; UEM; Vieira, Luiz Alberto; Monkolski, Alexandre; Faculdade Integrado de Campo Mourão; Povh, Edineia Barbosa; Faculdade Integrado de Campo Mourão.
As atividades antrópicas podem causar profundas alterações nas características físicas e químicas dos ambientes aquáticos, assim como na biota. Muitas espécies de invertebrados bentônicos podem auxiliar a indicação dessas alterações. No presente estudo, foi realizada a caracterização das condições ambientais de diferentes pontos do rio 119, Campo Mourão, Paraná, Brasil. Para tanto, foram analisadas condições físico-químicas da água e coletadas amostras do substrato do rio para análises físicas e biológicas. A densidade, a composição e a riqueza dos táxons de invertebrados bênticos encontrados foram utilizadas para diferenciar os pontos quanto às condições de alteração ambiental. Mudanças na densidade, na composição e na riqueza foram relatadas em todos os...
Tipo: Caracterização ambiental
Palavras-chave: 2.05.00.00-9 bioindicadores; Impacto ambiental; Monitoramento biológico Ecologia biological indicators; Environmental impact; Biological monitoring.
Ano: 2009
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/4844

Acute toxicity of sodium metabisulphite on mangrove crab Ucides cordatus (Decapoda, Ucididae)
Provedor de dados: 42
Autores: Pedale,Adriana B.; Fujimoto,Rodrigo Y.; Santos,Rudã F.B.; Abrunhosa,Fernando A.
The sodium metabisulphite salt is usually used in shrimp culture to prevent black spot. Unfortunately the toxicological effect of this xenobiotic in decapod crabs is unknown. Thus, the present study aims to investigate the sodium metabisulphite LC50 - 96 h in the mangrove species Ucides cordatus. Crabs were collected in the tidal creek margins in Bragança estuarine and were submitted to preliminary test (screening) and posterior definitive test. Crabs were exposed in five different concentrations and a control group in five replicates, two crabs per recipient (5 L) during 96 hours. A negative correlation was observed to sodium metabisulphite concentration in relation to dissolved oxygen and pH. At the end of the experiment were obtained the following...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Shrimp culture; Environmental impact; Metabisulphite; Lethal concentration; Neotropical species.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652012000400015

The influence of a large reservoir on the reproductive activity of the white piranha, Serrasalmus brandtii (Lütken, 1875) in Southeast Brazil
Provedor de dados: 49
Autores: Bazzoli,Nilo; Silva,Viviane Elizabeth de Souza; Marcon,Lucas; Santiago,Kleber Biana; Santos,José Enemir dos; Rizzo,Elizete.
Abstract: In order to assess the influence of the Três Marias dam on the reproduction of the white piranha, Serrasalmus brandtii, 1569 specimens captured from June 2011 to May 2012 in three sections of the São Francisco River basin were analyzed: section 1 = Três Marias reservoir (TMR); section 2 = São Francisco River (SFR) segment immediately downstream of TMR; and section 3 = SFR segment at the confluence with the Abaeté River. Total length (TL), body weight (BW), gonadosomatic index (GSI), and gonadal maturation stages were determined for each specimen, while vitellogenic follicle diameter, and absolute (AF) and relative (RF) fecundities were also determined for females. Reproductive activity, including spawned females and spermed males, was recorded...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Environmental impact; Thermal disturbances; Gonadal maturation.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032019000200206

Zooplankton communities as eutrophication bioindicators in tropical reservoirs
Provedor de dados: 49
Autores: Gazonato Neto,Antonio José; Silva,Lidiane Cristina da; Saggio,Angelo Augusto; Rocha,Odete.
Eutrophication is a process characterized by an increase in the aquatic system productivity, which causes profound changes in the structure of its communities. Owing to the high environmental sensitivity of planktonic species, the study of their communities can indicate the deterioration of the environment. The Jaguari and Jacareí reservoirs are part of the Cantareira System, supplying water to São Paulo inhabitants and that has been affected by several forms of continuous human interference. Here we analyze some properties of the zooplankton community as bioindicators of eutrophication and water quality change. In situ physical and chemical measurements were carried out, water was collected for analysis and quantitative zooplankton samples were taken at...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zooplankton; ABC curves; Calanoida/Cyclopoida ratio; Cantareira System; Environmental impact.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032014000400104

EI Scale: an environmental impact assessment scale related to the construction materials used in the reinforced concrete
Provedor de dados: 52
Autores: Morales,Gilson; Jungles,Antonio Edésio; Klein,Sheila Elisa Scheidemantel; Guarda,Juliana.
This study aimed to create EI Scal, an environmental impact assessment scal, related to construction materials used in the reinforced concrete structure production. The main reason for that was based on the need to classify the environmental impact levels through indicators to assess the damage level process. The scale allowed converting information to estimate the environmental impact caused. Indicators were defined trough the requirements and classification criteria of impact aspects considering the eco-design theory. Moreover, the scale allowed classifying the materials and processes environmental impact through four score categories which resulted in a single final impact score. It was concluded that the EI scale could be cheap, accessible, and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Environmental impact; Eco-design; Reinforced concrete production; Construction.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000600029

The effect of temperature and body size on filtration rates of Limnoperna fortunei (Bivalvia, Mytilidae) under laboratory conditions
Provedor de dados: 52
Autores: Pestana,Débora; Ostrensky,Antonio; Boeger,Walter Antonio Pereira; Pie,Marcio Roberto.
The golden mussel (Limnoperna fortunei, Mollusca: Bivalvia) is an invasive species that has been causing considerable environmental and economic problems in South America. In the present study, filtration rates of L. fortunei were determined in the laboratory under different temperatures (10, 15, 20, 25, 28, and 30 ºC) and two types of food (Algamac-2000® and the chlorophycean alga Scenedesmus sp.). There was a statistically significant relationship between time and filtration rates in the experiment using Scenedesmus sp., regardless of temperature. However, this pattern was absent in the experiment using Algamac, suggesting that the relationship between filtration rates and temperature might depend on the size of the filtered particles. In addition, there...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Invasive species; Condition index; Scenedesmus sp.; Algamac-2000®; Environmental impact.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000100018

Characterization and evaluation of the impact of feed management on the effluents of Nile tilapia (Oreochromis niloticus) culture
Provedor de dados: 52
Autores: Baccarin,Ana Eliza; Camargo,Antonio Fernando Monteiro.
The objective of this study was to evaluate the effect of different feed management on the quality of effluent water generated in Nile tilapia (Oreochromis niloticus) culture ponds. Feed was supplied as follows: natural food, and pelleted, extruded or minced ration. The study was conducted during 19 weeks in 12 continuous water exchange ponds of 300 m² each, with a population of male Nile tilapia juveniles, in a density equal to 1.7 fish m-2. Feeds contained 30% crude protein, 3,000 kcal digestible energy, and were supplied twice a day. Natural food consisted of chicken manure. Temperature, dissolved oxygen, pH, total phosphorus, total nitrogen, chlorophyll a and suspended solids were monitored weekly in the supplying and effluent water. Water residence...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish culture; Environmental impact; Feed management; Effluent.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000100012

Evaluation of Global Heating Reduction Potential with the Replacement of Electricity Supplied by the Local Concessionaire Via Solar Renewable Source.
Provedor de dados: 52
Autores: Pepplow,Luiz Amilton; Silva,Vander Luiz da; Betini,Roberto C.; Pereira,Thulio C. G.
Abstract The objective of this paper is to evaluate, through the 100-year Life Cycle Analysis, Global Warming Potential (GWP) and Global Temperature Increasing Potential (GTP) impact categories. It is proposed scenario of replacement of the energy matrix for the supply of electricity by Solar Photovoltaic, adopting as consumption base the facilities of Supermarkets, as they contribute to environmental impacts for greenhouse gas emissions such as: intensive use of electricity, occupation large areas such as the main building or parking lot sealing the ground, the movement of customers' vehicles with air and noise pollution and the use of plastic bags. Modifying the energy matrix using electricity from renewable sources enables the reduction of greenhouse...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Renewable energy; Life cycle assessment; Environmental impact.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132019000200202

Life cycle assessment as a tool to evaluate the impact of reducing crude protein in pig diets
Provedor de dados: 65
Autores: Monteiro,Alessandra Nardina Trícia Rigo; Dourmad,Jean-Yves; Pozza,Paulo Cesar.
ABSTRACT:  Environmental impacts of livestock systems, especially pig production, have come under increasing debate in recent years. The challenge is in meeting the growing demand for food at an affordable cost, without compromising environmental integrity. Previous studies have shown that feed production is responsible for the majority of CO2-eq. emission resulting from pig farming systems. This seems to indicate that feed strategies could be an effective tool to achieve the sustainability of the pork chain. Therefore, dietary crude protein reduction, through the addition of industrial amino acids, lessens the nitrogen excretion by pigs and, consequently, could mitigate the effects on the environment of pig production. In this sense, to effectively...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Crude protein; Environmental impact; Global warming potential; Greenhouse gases; Nutrient.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000600653

Blood sucking Diptera (Culicidae, Psychodidae, Simuliidae) in forest fragment under impact of dam in the borderland of Rio Grande do Sul and Santa Catarina states, Brazil
Provedor de dados: 65
Autores: Muller,Gerson Azulim; Dalavequia,Maira Aparecida; Wagner,Glauber; Marcondes,Carlos Brisola.
The study of Diptera of medical importance in areas affected by dam constructions is very important due to the possibility of the occurrence of diseases transmitted by these species. Collections were performed during 2010 and 2011 in an area under impact of a dam on the Uruguai River in the borderland of Rio Grande do Sul and Santa Catarina states. Insects were collected using suction tubes and Shannon trap, also immature live forms were obtained by manual collect. Eight-hundred sixty-one Diptera insects were captured, including Haemagogus leucocelaenus (Culicidae), Aedes albopictus (Culicidae), three species of Anopheles spp. (Culicidae), two of Plebotominae and three distinct Simuliidae species. The Diptera fauna in the area is diversified and species...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dams; Diptera; Environmental impact; Vectors.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782014000701194

Applying precision feeding to improve the nitrogen efficiency of swine production: a review of possible practices and obstacles
Provedor de dados: 65
Autores: Monteiro,Alessandra Nardina Trícia Rigo; Bertol,Teresinha Marisa; Kessler,Alexandre de Mello.
ABSTRACT: Optimizing nutrient efficiency is essential in order to increase sustainability of pig production systems, especially where the growing demand for food must be met at an affordable cost, without compromising environmental resources. To make this happen, it is necessary to develop efficient methods to accurately estimate the nutritional requirements of animals, as well as develop equipment and systems that allow for applying such expertise in the production system. Estimating the nutritional requirement of pigs through mathematical models, considering several factors that can impact the requirement, is a key factor to reduce the environmental load from pig production. Likewise, feed formulation and feeding programs, can help to achieve this. In...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet formulation; Environmental impact; Modelling; Nutritional requirement; Pig.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000700653

Stability and phosphorus leaching of tilapia feed in water
Provedor de dados: 65
Autores: Bueno,Guilherme Wolff; Mattos,Bruno Olivetti de; Neu,Dacley Hertes; David,Fernanda Seles; Feiden,Aldi; Boscolo,Wilson Rogério.
ABSTRACT:  The present research aimed to investigate the stabil¬¬ity of pellets and phosphorus leaching of diets formulated for juveniles of Nile tilapia (Oreochromis niloticus), with different sources of phosphorus and different exposure times in water. Six diets were elaborated by varying the source of phosphorus (1 ‒ dicalcium phosphate (DP); 2 ‒ meat and bone meal (MBM); 3 ‒ poultry meal (PM); 4 ‒ anchovy meal (AM); 5 ‒ tilapia filleting industrial meal (TM); 6 ‒ calcined bone meal (CBM)) and, then, were submitted to four exposure times in water (5, 10, 15 and 20 minutes), with three replicates. Thus, 72 aquariums of 30‒liters were used, each being an experimental unit. All diets were evaluated for electrical conductivity of water, turgidity of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture; Aquafeed; Environmental impact; Phosphorus leaching; Water quality.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019000600652

MACRO simulator (version 5.0) for predicting atrazine herbicide behavior in brazilian latosols
Provedor de dados: 64
Autores: Vasconcelos,Fernanda Carla Wasner; Carvalho,Samara Andrade; Silva,Sérgio Henrique Godinho; Silva,Elen Alvarenga; Guerreiro,Mário César; Curi,Nilton.
The knowledge of pesticides behavior is fundamental for understanding the environmental impact caused by these products. However, related field experiments are time consuming and expensive. The MACRO® simulator allows to predicting the leaching of pesticides through the soil profile and the possible environmental contamination. The objective of this work was to study the percolate behavior and the atrazine leaching in two contrasting Latosols using the MACRO® simulator. The MACRO® simulator was adequate to predict atrazine behavior under the studied conditions and it can be used for the risk evaluation of atrazine contamination in surface and underground waters.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pesticide; Leaching; Environmental impact.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542013000300003