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| Registros recuperados: 56 | |
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| Carvalho,Daniel C. De; Pessoa,Mayara M. De L.; Pereira,Marcos G.; Delgado,Rafael C.. |
| ABSTRACT This study aimed to assess vegetal cover evolution on a river island within the Ecological Station of (EEP), by remote sensing. For this purpose, Normalized Difference Vegetation Indexes were generated for Landsat 1 (1973) and Landsat 5 (1984, 1990, 2000 and 2011) images. Five landscape units were identified in the field: bare soil, Rough savanna, Typical savanna, Forested savanna and Evergreen dry woods. Only Forested savanna and Evergreen dry woods showed poor spectral splitting, being thus considered as a forestry complex. Changes throughout time have occurred in all units, with decreasing in bare soil areas (-2.56 ha year−1), Rough savanna (-0.66 ha year−1) and Typical savanna (-0.94 ha year−1) and with an increase in the Forested savanna... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Remote sensing; Environmental monitoring; Vegetation index. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162016000601186 |
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| SILVA, M. S. G. M. e; ROSA, A. J. de M.; RUOCCO, A. M. C.; DIAS, E. S.; KOBAYASHI, J. T.. |
| Resumo: Este documento apresenta as metodologias empregadas nos reservatórios de Ilha Solteira e Chavantes, para avaliação da qualidade da água e do sedimento em áreas aquícolas com tanques-rede. Tal pesquisa é parte do Projeto BRS Aqua, Plano de Ação "Protocolo de Biomonitoramento em reservatórios com atividade de aquicultura baseado em insetos aquáticos", cujo objetivo final é a proposição de um protocolo de biomonitoramento para as áreas estudadas e está relacionado ao Objetivo de Desenvolvimento Sustentável da ONU (ODS 6), meta 6.3: "Até 2030, melhorar a qualidade da água, reduzindo a poluição, eliminando despejo e minimizando a liberação de produtos químicos e materiais perigosos, reduzindo à metade a proporção de águas residuais não tratadas e... |
| Tipo: Documentos (INFOTECA-E) |
Palavras-chave: Biomonitoramento; Tanque-rede; Qualidade da Água; Piscicultura; Reservatório de Água; Tanque; Water quality; Water quality analysis; Fish culture; Water reservoirs; Aquaculture tanks; Environmental monitoring. |
| Ano: 2021 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1131496 |
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| NICODEMO, M. L. F.; MATTHIENSEN, A.; OLIVEIRA FILHO, E. C. de; PEREIRA, L. A.; BRITO, L. T. de L.; OTENIO, M. H.; OLIVEIRA, M. D. de; SCORZA JUNIOR, R. P.. |
| This chapter addresses Embrapa?s contribution to target 6.3, which relates to water quality and pollution reduction. Decreasing the availability of good quality water is a growing and global concern. Monitoring water quality, coupled with the adoption of good soil and water management practices and the use of technologies to reduce the production of contaminants, can contribute significantly to minimizing this problem and ensuring good quality water for all. The present chapter sought to list search results that point out paths that can be followed. |
| Tipo: Parte de livro |
Palavras-chave: Monitoramento da água; Prevenção de poluição; Redução da carga poluente; Uso integrado da água; Restauração do ecossistema; Qualidade da Água; Água; Poluição; Ecossistema; Water quality; Water; Environmental monitoring. |
| Ano: 2020 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1131014 |
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| GIROTTO, M. V. F.; SILVA, C. M. da; SAMPAIO, F. G.; STECH, J. L.; MENDES, G. O.; DALSASSO, R. F.; BODELÃO, A. G; MATOS, F. T. de; MESSIAS, J. A.. |
| Resumo: A publicação tem como objetivo apresentar as principais orientações para fundeio, manutenção e operação das plataformas de coleta de dados de qualidade da água e do sistema integrado de monitoramento ambiental (Sima), bem como os procedimentos rotineiros das sondas e das linhas de sensores de temperatura, tendo como base uma metodologia de baixo custo, eficiente e com confiabilidade na obtenção dos dados. |
| Tipo: Documentos (INFOTECA-E) |
Palavras-chave: Piscicultura; Qualidade da Água; Equipamento; Coleta de Dados; Fish culture; Measuring devices; Water quality analysis; Environmental monitoring. |
| Ano: 2021 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1133412 |
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| Brehmer, Patrice; Sancho, Gorka; Trygonis, Vasilis; Itano, David; Dalen, John; Fuchs, Ariel; Faraj, Abdelmalek; Taquet, Marc. |
| This work presents a methodological synthesis for the in situ monitoring of fish aggregating devices (FADs) using a combination of optical, echosounder and SCUBA observations conducted in the vicinity of drifting FADs. The acoustic methods allowed, according to the devices used, the description of the spatial organisation and dynamics of biotic scattering layers, individual fishes, schools, shoals and mammals, while visual, photographic and video observations permitted species identification within a range of 0 to ~ 25 m. Based on these results, we elaborate on the interest to combine acoustic and visual methods, and present an autonomous instrumented drifting buoy for remotely monitoring fish diversity and abundance in the pelagic ecosystems. The... |
| Tipo: Text |
Palavras-chave: Optical; Census; Acoustics; Buoy; Seaorbiter; Biomonitoring; Conservation; Environmental monitoring; Fish; Pelagic. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00461/57252/59265.pdf |
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| 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 |
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| Noyer, Charlotte; Abot, Anne; Trouilh, Lidwine; Leberre, Veronique Anton; Dreanno, Catherine. |
| Detection of harmful algal blooms has become a challenging concern because of to the direct impacts on public health and economy. The identification of toxic dinoflagellates and diatoms in monitoring programs requires an extensive taxonomic expertise and is time consuming. Advances in molecular biology have allowed the development of new approaches, more rapid, accurate and cost-effective for detecting these microorganisms. In this context, we developed a new DNA microarray (called, Phytochip) for the simultaneous detection of multiple HAB species with a particular emphasis on Pseudo-nitzschia species. Oligonucleotide probes were designed along the rRNA operon. After DNA extraction, the target rDNA genes were amplified and labeled using an asymmetric PCR;... |
| Tipo: Text |
Palavras-chave: HAB; Pseudo-nitzschia; Microarray; Ribosomal oligonucleotide probes; Environmental monitoring. |
| Ano: 2015 |
URL: https://archimer.ifremer.fr/doc/00254/36554/42346.pdf |
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| 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 |
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| 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 |
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| Registros recuperados: 56 | |
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