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| Trivinho-Strixino,Susana; Strixino,Giovanni. |
| Durante um programa de caracterização limnológica, foi avaliado um trecho do Rio Ribeira, contido na área de influência do futuro reservatório da UHE Tijuco Alto, através da comunidade macrobentônica. Em 4 campanhas de coleta, no período de XII/95 a IX/96, foram colhidas amostras de sedimento em 5 pontos do rio compreendidos entre o Córrego das Criminosas e o município de Eldorado, ambos no estado de São Paulo. Os dados faunísticos analisados (composição taxonômica, participação relativa de cada táxon, índices comunitários e bióticos) permitiram estabelecer a seguinte avaliação preliminar: 1- Das 15 famílias de macroinvertebrados assinaladas, Chironomidae (Diptera) e Elmidae (Coleoptera) foram as mais representativas, contribuindo, respectivamente, com... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Diptera; Chironomidae; River macroinvertebrates; Faunist river evaluation; Biotic index. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0328-03812005000200008 |
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| Denoyelle, Marieva; Jorissen, Frans J.; Martin, Daniel; Galgani, Francois; Mine, Jacques. |
| We compare foraminifera and macrofauna as bio-indicators of oil-based drill mud disposal site off Congo. The most polluted sites are characterized by poor faunas, dominated by some very tolerant taxa. Slightly further from the disposal site, there is an area with strongly increased densities, heavily dominated by opportunistic taxa. Still further, macrofauna appears to be similar to that at the reference area, but the foraminiferal meiofauna still suggests a slight environmental perturbation. The foraminiferal FIEI index, based on the species distribution in the study area, appears to be more discriminative than the macrofaunal ITI index, based on a priori definitions of the trophic guilds of the various taxa. Our comparative approach allows us to point... |
| Tipo: Text |
Palavras-chave: Bio-indicators; Biotic index; Drilling mud; Foraminifera; Macrofauna. |
| Ano: 2010 |
URL: http://archimer.ifremer.fr/doc/00019/13027/10203.pdf |
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| Hartmann, Sharonn Martins Gonçalves; Rozário, Hérica; Affonso, Ana Lucia Suriani. |
| Benthic macroinvertebrates are used as environmental bioindicators in the assessment of water quality in rivers and lakes, due to the sensitivity of some taxa to pollution. The objective of this research was to evaluate the consequences of industrial effluent discharge on the structure of the benthic community present in a river in the subtropical region of Brazil. The organisms were collected at three points of the Coutinho River, in 2013 (September and November) and 2014 (January and March). To characterize the community were calculated density, Shannon diversity index (H´), Pielou equitability (J), taxa richness, Biotic Indices (Biological Monitoring Working Party - BMWP, Average Score Per Taxon - BMWP-ASPT, Family Biotic Index – FBI) and Canonical... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biotic index; Pollution; Zoobenthos.. |
| Ano: 2019 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/45536 |
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| Barras, Christine; Jorissen, Frans J.; Labrune, Celine; Andral, Bruno; Boissery, Pierre. |
| In this study, living (Rose Bengal stained) foraminiferal faunas from 31 stations along the entire French Mediterranean Sea coast except Corsica have been analysed. In the context of the Water Framework Directive, the aim was to develop a biotic index to evaluate the benthic ecosystem quality. Therefore, different faunal parameters (diversity indices, wall structure proportion, and indicative species groups) have been tested to determine their relevance as indicators of environmental conditions. The best results are obtained with a biotic index based on the relative proportion of stress-tolerant taxa. For ecosystem quality evaluation, it is essential to distinguish between natural and anthropogenic eutrophication phenomena. In order to do so, we applied a... |
| Tipo: Text |
Palavras-chave: Coastal Mediterranean Sea; Foraminiferal faunas; Indicative species; Tolerant species; Biotic index; Water Framework Directive. |
| Ano: 2014 |
URL: http://archimer.ifremer.fr/doc/00162/27312/28371.pdf |
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| Dauvin, Jean-claude; Ruellet, Thierry; Desroy, Nicolas; Janson, Anne-laure. |
| Using recent indices developed, in part, for use under the European Water Framework Directive (AMBI, BENTIX, BOPA BQI, I2EC and the trophic index ITI), the ecological quality status of two highly contaminated environments-the Bay of Seine and the Seine estuary (Eastern English Channel)-was determined on several spatial and temporal scales. Data from 604 observations gathered over a 14-year period (1988-2002) were analyzed, and the results used to show the relationship between biotic indices, environmental variables and classic descriptors (e.g., number of species, total abundance, dominance index, ES(50) and Shannon/Brillouin diversities). Though the specific ecological quality (EcoQ) values calculated with the various indices were different, the overall... |
| Tipo: Text |
Palavras-chave: Benthic index; Biotic index; Macrobenthos; English Channel; Bay of Seine; Seine estuary. |
| Ano: 2007 |
URL: http://archimer.ifremer.fr/doc/2007/publication-2510.pdf |
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| Blanchet, H; Lavesque, Nicolas; Ruellet, T; Dauvin, J; Sauriau, Pierre-guy; Desroy, Nicolas; Desclaux, C; Leconte, M; Bachelet, G; Janson, A; Bessineton, C; Duhamel, S; Jourde, J; Mayot, S; Simon, S; De Montaudouin, X. |
| This study deals with the application of macrozoobenthos-based biotic indices (BI) within the frame of the implementation of the European Water Framework Directive. More precisely, this study aimed at assessing the performance of five recently developed methodologies (BI) for the assessment of ecological quality status (EcoQ) in two semi-enclosed, sheltered coastal ecosystems and in one transitional water body situated along the Western French coast, namely Marennes-Oleron Bay, Arcachon Bay, and the Seine Estuary. This study showed that these five indices rarely agreed with each other, describing very different pictures of the overall EcoQ of the three study sites. This work also clearly underlined the limitations of these approaches, notably the... |
| Tipo: Text |
Palavras-chave: Transitional waters; Semi enclosed coastal ecosystems; Benthic invertebrates; Directive; European Water Framework; Biotic index. |
| Ano: 2008 |
URL: http://archimer.ifremer.fr/doc/2008/publication-3987.pdf |
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