From biomarkers to population responses in Nereis diversicolor: Assessment of stress in estuarine ecosystems
| Autor: | Catherine Mouneyrac, Mohamed Mouloud, C Durou, Patrick Gillet, Michèle Roméo, Philip S. Rainbow, Brian D. Smith, Bruno Deutsch, M. Gnassia-Barelli, Claude Amiard-Triquet |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
0106 biological sciences
Population level Health Toxicology and Mutagenesis media_common.quotation_subject Population Nereis diversicolor Estuarine ecosystems 010501 environmental sciences Biology 01 natural sciences Marine pollution Animals Water Pollutants 14. Life underwater education Ecosystem 0105 earth and related environmental sciences media_common Population Density education.field_of_study geography geography.geographical_feature_category Ecology Reproduction 010604 marine biology & hydrobiology Public Health Environmental and Occupational Health Proteins Polychaeta Estuary General Medicine Lipid Metabolism Pollution Female France Biomarkers Glycogen Environmental Monitoring Demographic structure |
| Zdroj: | Ecotoxicology and Environmental Safety. 66:402-411 |
| ISSN: | 0147-6513 |
| DOI: | 10.1016/j.ecoenv.2006.02.016 |
| Popis: | Suborganismal responses to toxicants can be sensitive tools to assess marine pollution, but their ecological significance is a matter of debate. Among these biomarkers, those linked to reproduction are most probably related to populational effects. To test this hypothesis, Nereis diversicolor were collected in the multipolluted Seine estuary and the comparatively clean Authie estuary (France). Energy reserves were higher in Authie worms, suggesting a better physiological status. The number of oocytes per female was higher for the polychaetes from the Authie, but it was related to the size of animals, which was higher at this site. Densities of worms were depleted in the Seine compared to those in Authie. Demographic structure of the Seine population was also altered. The concomitant changes in energy reserves, egg production, and population structure and density suggest that the effects on biomarkers and at the population level are related. |
| Databáze: | OpenAIRE |
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