|
|
|
| Registros recuperados: 56 | |
|
| |
|
|
| Fonseca, Iraúza Arroteia; UEM; Siqueira, Natália Silveira; UEM; Rodrigues, Liliana; UEM. |
| Este trabalho objetivou analisar a riqueza e a abundância de algas perifíticas nos rios do Corvo e Guairacá, tributários do reservatório de Rosana, quando da instalação de tanques-rede. Acreditava-se que o ponto logo à frente dos tanques-rede apresentaria menor riqueza e abundância de algas e que o reservatório influenciaria as estações a jusante dos tanques. Para isso, coletas foram realizadas a montante, em frente e a jusante da instalação de tanques-rede. Independentemente do ambiente, a estação que apresentou maior riqueza foi 1.000 m a montante. Diminuição na riqueza foi verificada nas estações 500 m a montante e 500 m a jusante. Quanto à densidade, em frente aos tanques, observou-se maior abundância, seguida pela estação a 1.000 m a jusante. Já, nas... |
|
Palavras-chave: Periphytic algae; Environmental monitoring; Reservoir; Net cage 2.00.00.00-6 Ciências Biológicas perifíton; Monitoramento ambiental; Aqüicultura; Estrutura de comunidade Ecologia. |
| Ano: 2009 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/2523 |
| |
|
|
| Simanca, J.; Ramírez, O.; Fernández, L.; Arriaza, L.; Rodas, L.; Esponda, S.; García, R.; Alburquerque, O.; García, I.. |
| Se reconoce que el establecimiento y operación de un sistema de monitoreo ambiental es la médula de los esfuerzos que una nación realiza en el campo del manejo de la calidad del medio ambiente y sin él, los programas de restauración y protección de los recursos naturales, solo pueden alcanzar objetivos limitados con una efectividad relativa. A partir de los análisis de la información correntométrica obtenida de dos ADCP (Y5 y Y6) fondeados en el Lado Cuba del canal de Yucatán desde septiembre de 1999 a junio de 2001, es obtenida una caracterización espacio-temporal de la contracorriente cubana. Los resultados muestran un flujo al Sur de forma intermitente, sufriendo variaciones tanto en su envergadura como en su intensidad en los diferentes meses del año.... |
| Tipo: Preprint |
Palavras-chave: Environmental monitoring; Monitoring systems; Environment management; Environmental monitoring; Http://aims.fao.org/aos/agrovoc/c_37876. |
| Ano: 2010 |
URL: http://hdl.handle.net/1834/3604 |
| |
|
|
| Robinson, Craig D.; Webster, Lynda; Martinez-gomez, Concepcion; Burgeot, Thierry; Gubbins, Matthew J.; Thain, John E.; Vethaak, A. Dick; Mcintosh, Alistair D.; Hylland, Ketil. |
| Understanding the status of contaminants in the marine environment is a requirement of European Union Directives and the Regional Seas Conventions, so that measures to reduce pollution can be identified and their efficacy assessed. The international ICON workshop (Hylland et al., in this issue) was developed in order to test an integrated approach to assessing both contaminant concentrations and their effects. This paper describes and assesses the concentrations of trace metals, polycyclic aromatic hydrocarbons, and polychlorinated biphenyls in sediments, mussels, and fish collected from estuarine, coastal and offshore waters from Iceland to the Mediterranean Sea. For organic contaminants, concentrations progressively increased from Iceland, to the... |
| Tipo: Text |
Palavras-chave: Integrated assessment; ICES; North Atlantic; North Sea; Baltic Sea; Mediterranean Sea; Polycyclic aromatic hydrocarbons (PAHs); Polychlorinated biphenyls (PCBs); Trace metals; Environmental monitoring. |
| Ano: 2017 |
URL: http://archimer.ifremer.fr/doc/00324/43520/43051.pdf |
| |
|
|
| Reiss, Henning; Birchenough, Silvana; Borja, Angel; Buhl-mortensen, Lene; Craeymeersch, Johan; Dannheim, Jennifer; Darr, Alexander; Galparsoro, Ibon; Gogina, Mayya; Neumann, Hermann; Populus, Jacques; Rengstorf, Anna M.; Valle, Mireia; Van Hoey, Gert; Zettler, Michael L.; Degraer, Steven. |
| Marine benthic ecosystems are difficult to monitor and assess, which is in contrast to modern ecosystem-based management requiring detailed information at all important ecological and anthropogenic impact levels. Ecosystem management needs to ensure a sustainable exploitation of marine resources as well as the protection of sensitive habitats, taking account of potential multiple-use conflicts and impacts over large spatial scales. The urgent need for large-scale spatial data on benthic species and communities resulted in an increasing application of distribution modelling (DM). The use of DM techniques enables to employ full spatial coverage data of environmental variables to predict benthic spatial distribution patterns. Especially, statistical DMs have... |
| Tipo: Text |
Palavras-chave: Ecosystem approach; Environmental monitoring; Habitat suitability modelling; Macrofauna; Mapping; Marine spatial planning (MSP); Predictive modelling; Species distribution modelling. |
| Ano: 2015 |
URL: http://archimer.ifremer.fr/doc/00203/31405/29915.pdf |
| |
|
|
| Montes, Caroline da Silva; UFPR; Ferreira, Maria Auxiliadora Pantoja; UFPR; Santos, Simone do Socorro Damasceno; UFPR; Ledebur, Esther Iris C. Freifrau Von; UFPR; Rocha, Rossineide Martins; UFPR. |
| This work analyzes the morphological alterations in Brachyplatystoma rousseauxii gills and evaluates whether this species can be considered an environmental monitoring biomarker of Guajará Bay. Sampling was carried out in four areas around Belém, Brazil, in four annual periods: dry/wet season, wet season, wet/dry season and dry season. Water pH, temperature and suspended material were evaluated. A total of 36 specimens were collected. The second right gill arch of each animal was removed and immediately fixed and processed for histopathology analysis with light microscopy. The physicochemical analysis of the water during the study period showed slight acidity, temperature and material in suspension within normal levels. Histopathological analysis of the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biomarkers; Environmental monitoring; Histological alterations; Fish Morfologia biomarkers; Environmental monitoring; Histological alterations; Fish Histologia. |
| Ano: 2009 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/4800 |
| |
|
|
| Martínez Canals, M.; Montalvo, J.F.; Miravet, M.E.; Lugioyo, M.; Loza, S.; Pérez, R.; García, I.; Rodríguez, A.; Cesar, M.E.; Esponda, S.; Sánchez, M.; Delgado, V.. |
| The anthropogenic affectation was evaluated on the coast N of the Gulf of Batabanó in May 2003 (corresponding to the provinces of Matanzas and Havana), in areas located in the line of the coast. The results were compared with the historical information of the sector. In the coast N and the Ensenada of the Broa, the parameters oxygen saturation, DBO5 and DQO showed characteristic high values of eutrofication. The biggest contribution in the Cianoficies was in the near coastal areas to sources of organic contamination. In the case of the nutrients they show specific data of mesothrofic waters with tendency to the eutrofization and the silts presented a high affectation for toxic metals. The area near to Guanímar is distinguished to present conditions of... |
| Tipo: Proceedings Paper |
Palavras-chave: Phytoplankton; Water quality; Primary production; Chemistry; Environmental monitoring; Phytoplankton; Water quality; Primary production; Chemistry; Environmental monitoring; Http://aims.fao.org/aos/agrovoc/c_13344; Http://aims.fao.org/aos/agrovoc/c_16061; Http://aims.fao.org/aos/agrovoc/c_34329; Http://aims.fao.org/aos/agrovoc/c_1522; Http://aims.fao.org/aos/agrovoc/c_37876. |
| Ano: 2006 |
URL: http://hdl.handle.net/1834/2172 |
| |
|
| |
|
|
| Matos Pupo, F.; Batista Tamayo, L. M.; Sánchez Hernández, A.. |
| El golfo de Ana María constituye una zona con grandes reservas naturales y de condiciones climáticas muy específicas, que la ubica como favorable para explotar por dos sectores económicos de importancia nacional: la pesca y el turismo; el que cobra mayor auge en los últimos años. Se realizó una evaluación de las condiciones hidrometeorológicas en su porción central, determinándose en diecisiete puntos de muestreo durante octubre de 2011, el comportamiento de cinco elementos meteorológicos: nubosidad, dirección y velocidad del viento, temperatura y fenómenos atmosféricos. Todas las mediciones y observaciones fueron realizadas por medio de una metodología elaborada previamente, aplicable a zonas alejadas del alcance máximo de las estaciones de... |
| Tipo: Journal Contribution |
Palavras-chave: Atmospheric conditions; Meteorological data; Environmental monitoring; Temperature; Wind; Cloudiness. |
| Ano: 2012 |
URL: http://hdl.handle.net/1834/4635 |
| |
|
| |
|
|
| Cunha,Davi G. F.; Grull,Doron; Damato,Murilo; Blum,José R. C.; Eiger,Sergio; Lutti,José E.I.; Mancuso,Pedro C. S.. |
| The management of urban water resources plays an important role for developing countries. The Tietê and Pinheiros Rivers (São Paulo, Brazil) are affected by domestic and industrial effluents and by the diffuse pollution. This research aimed to quantify 134 variables in the water of Tietê and Pinheiros Rivers (approximately 7,200 and 6,600 analyses, respectively) from August 2007 to December 2008. The idea was to verify if the fact that both rivers are located in the same basin is enough to consider the application of a single management plan for both. Data showed that the rivers presented significant anthropogenic interference. The results suggested that such rivers must be subjected to individual management plans since there were exclusive occurrences... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Environmental monitoring; Metropolitan region of São Paulo (MRSP); Urban rivers; Water pollution; Water quality; Watershed management. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652011000400032 |
| |
|
| |
|
|
| Davidson,I. |
| The large amounts of feathers produced by the poultry industry, that is considered as a waste was explored for possible uses in various industries, such as meals for animals, biofuels, biodegradable plastic materials, combating water pollution and more. That review mentions these uses, but concentrate on the utilization of feathers for the diagnosis of viral infections and for monitoring vaccine viruses in chickens after vaccination. The viral diseases in which diagnosis using nucleic acids extracted from the feather shafts was described are, Marek's disease virus, circoviruses, chicken anemia virus, fowlpox virus, avian retroviruses, avian influenza virus and infectious laryngotracheitis virus. In two cases, of Marek's disease virus and of infectious... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Avian influenza virus; Avian retroviruses; Infectious laryngotracheitis virus; Circoviruses; Chicken; Chicken anemia virus; Diagnosis of avian viral diseases; Environmental monitoring; Feathers; Fowlpox virus; Marek's disease virus; Malformation of chick feathering; Stability of DNA viruses; Usage of feathers. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2009000300001 |
| |
|
|
| SHIMANO,Yulie; CARDOSO,Mylena; JUEN,Leandro. |
| ABSTRACT The present study evaluated the potential for the reduction of sampling effort in studies of ephemeropteran nymphs in Brazilian Amazon streams, Pará State, Brazil, without the loss of ecological information (species composition, abundance, and richness), and the congruence of different levels of taxonomic resolution (morphospecies, genus, family and functional group). Test groups of 15, 10 and five subsamples were selected from the 20 subsamples collected per stream (40 streams sampled), and were compared in terms of their species richness and abundance (ANOVA), and composition (Procrustes). Taxonomic resolution was also analyzed in Procrustes. Species abundance (F(3, 156) = 25.426; p < 0.001) and richness (F(3, 156) = 13.866, p < 0.001)... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Congruence; Environmental monitoring; Functional feeding group; Taxonomic resolution. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672018000200137 |
| |
|
| |
|
| |
|
|
| Mulero, Stephen; Boissier, Jérôme; Allienne, Jean‐françois; Quilichini, Yann; Foata, Joséphine; Pointier, Jean‐pierre; Rey, Olivier. |
| Under ongoing climate changes, the development of large‐scale monitoring tools for assessing the risk of disease emergence constitutes an urging challenge. This is particularly the case for snail‐borne diseases such as the urogenital bilharziasis that emerged in Corsica and threat European countries. The expansion of this tropical disease mainly relies on the local presence of competent snail hosts such as Bulinus truncatus. Unfortunately, very little is known about the actual repartition of freshwater snails worldwide which makes new emergences difficult to predict. In this study, we developed two ready‐to‐use environmental DNA‐based methods for assessing the distribution of B. truncatus from water samples collected in the field. We used two approaches, a... |
| Tipo: Text |
Palavras-chave: Bulinus truncatus; Corsica; DdPCR; Environmental DNA; Environmental monitoring; QPCR; Schistosomiasis. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00593/70554/68723.pdf |
| |
|
|
| Byers, B.A.. |
| The Namibian Government (GRN) gives a high priority to "sustainable and integrated natural resource management" in its First National Development Plan (NDP #1), which covers the fiveyear period from 1996–2000. The National Development Plan commits the GRN to: "...promote sustainable development within all sectors and across all regions, to ensure present and future generations of Namibians gain optimal benefit from the equitable and sustainable utilisation of Namibia's renewable resources; to protect the nation's biodiversity and maintain essential ecological life-support systems; to promote participatory, cross-sectoral and integrated programmes to improve understanding of the management of natural resources on a sustainable basis." The First National... |
| Tipo: Working Paper |
Palavras-chave: Environmental monitoring. |
| Ano: 1997 |
URL: http://hdl.handle.net/1834/464 |
| |
|
| |
|
|
| Álvarez Ortiz, M.; Artiles Pérez, J.; Fernández Vila, L.; López García, D.. |
| La Bahía Buenavista situada al norte de las provincias Villa Clara y Santi Spíritus dentro del Archipiélago de Sabana – Camagüey, está confinada por un cordón de cayos, bajos, canales y pasas, así como dos pedraplénes; siendo considerada una laguna costera de renovación limitada. Constituye un ecosistema muy frágil; que responde rápidamente a los cambios originados por factores naturales y antrópicos. Es objetivo del presente trabajo realizar una evaluación integral geoambiental de la región, para lo cual se analizó como un todo único la data histórica disponible: geológica, oceanográfica, hidrográfica y físico-geográfica. Con los mapas temáticos obtenidos se logró implementar un SIG que permitió un manejo eficiente de la información, a partir del cual se... |
| Tipo: Preprint |
Palavras-chave: Environmental monitoring; Environmental monitoring; Http://aims.fao.org/aos/agrovoc/c_37876. |
| Ano: 2010 |
URL: http://hdl.handle.net/1834/3597 |
| |
| Registros recuperados: 56 | |
|
|
|
