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| Format: | Artículo científico |
| Langue: | en |
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Universidad Autónoma de Baja California
2008
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| Accès en ligne: | https://www.redalyc.org/articulo.oa?id=48034305 |
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| _version_ | 1866815548321431552 |
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| author | P Pereira |
| author_facet | P Pereira |
| contents | Environmental chemical data and Carcinus maenas biochemical responses in a coastal eutrophic ecosystem (Óbidos Lagoon, Portugal) P Pereira M Pacheco H de Pablo C Vale Ciencias de la Tierra metals costal lagoon eutrophication Carcinus maenas oxidative stress The status of Óbidos Lagoon (Portugal) was assessed combining water quality, sediment quality, and oxidative stressresponses in female shore crab Carcinus maenas. Two sites were surveyed in October 2005, one located in an impacted, confined inner branch (Barrosa) and another in the middle of the lagoon more influenced by the seawater input. Concentrationsof ammonium and nitrate + nitrite were notably higher in Barrosa, although the differences in sediment metal contamination were minor. The availability of dissolved Mn, Cu, Ni, and Cd was higher in Barrosa, particularly in the morning, which suggests the influence of internal processes occurring near the sediment during the night. Female crabs captured at Barrosa exhibitedalterations in hepatopancreas antioxidants, clearly indicating that the inner branch is a more polluted area. Crabs displayed increased activity of glutathione peroxidase, catalase, and glutathione S-transferase, as well as lipid peroxidative damage, whereas no differences were observed for total glutathione. Those significant responses were not accompanied by a significant elevation of metal levels in the hepatopancreas, suggesting that adverse effects may have been caused by the synergism of stressors. 2008 artículo científico 0185-3880 https://www.redalyc.org/articulo.oa?id=48034305 en http://www.redalyc.org/revista.oa?id=480 Ciencias Marinas application/pdf Universidad Autónoma de Baja California Ciencias Marinas (México) Num.3 Vol.34 |
| format | Artículo científico |
| id | redalyc_48034305 |
| language | en |
| publishDate | 2008 |
| publisher | Universidad Autónoma de Baja California |
| spellingShingle | Environmental chemical data and Carcinus maenas biochemical responses in a coastal eutrophic ecosystem (Óbidos Lagoon, Portugal) P Pereira Ciencias de la Tierra metals costal lagoon eutrophication Carcinus maenas oxidative stress Environmental chemical data and Carcinus maenas biochemical responses in a coastal eutrophic ecosystem (Óbidos Lagoon, Portugal) P Pereira M Pacheco H de Pablo C Vale Ciencias de la Tierra metals costal lagoon eutrophication Carcinus maenas oxidative stress The status of Óbidos Lagoon (Portugal) was assessed combining water quality, sediment quality, and oxidative stressresponses in female shore crab Carcinus maenas. Two sites were surveyed in October 2005, one located in an impacted, confined inner branch (Barrosa) and another in the middle of the lagoon more influenced by the seawater input. Concentrationsof ammonium and nitrate + nitrite were notably higher in Barrosa, although the differences in sediment metal contamination were minor. The availability of dissolved Mn, Cu, Ni, and Cd was higher in Barrosa, particularly in the morning, which suggests the influence of internal processes occurring near the sediment during the night. Female crabs captured at Barrosa exhibitedalterations in hepatopancreas antioxidants, clearly indicating that the inner branch is a more polluted area. Crabs displayed increased activity of glutathione peroxidase, catalase, and glutathione S-transferase, as well as lipid peroxidative damage, whereas no differences were observed for total glutathione. Those significant responses were not accompanied by a significant elevation of metal levels in the hepatopancreas, suggesting that adverse effects may have been caused by the synergism of stressors. 2008 artículo científico 0185-3880 https://www.redalyc.org/articulo.oa?id=48034305 en http://www.redalyc.org/revista.oa?id=480 Ciencias Marinas application/pdf Universidad Autónoma de Baja California Ciencias Marinas (México) Num.3 Vol.34 |
| title | Environmental chemical data and Carcinus maenas biochemical responses in a coastal eutrophic ecosystem (Óbidos Lagoon, Portugal) |
| topic | Ciencias de la Tierra metals costal lagoon eutrophication Carcinus maenas oxidative stress |
| url | https://www.redalyc.org/articulo.oa?id=48034305 |