Analysis of some factors that may modify the bioavailability of cadmium and lead by Biomphalaria glabrata
Laboratory acute bioassays (t = 96 h) were used to determine the uptake, distribution, and elimination of cadmium and lead by the freshwater gastropod Biomphalaria glabrata. Experiments were conducted on nonpigmented and pigmented organisms separately. The influence of food and different concentrati...
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| Veröffentlicht in: | Environmental toxicology and chemistry 2000-11, Vol.19 (11), p.2762-2768 |
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| container_title | Environmental toxicology and chemistry |
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| creator | Guerrero, Noemí R. Verrengia Nahabedian, Daniel E. Wider, Eva A. |
| description | Laboratory acute bioassays (t = 96 h) were used to determine the uptake, distribution, and elimination of cadmium and lead by the freshwater gastropod Biomphalaria glabrata. Experiments were conducted on nonpigmented and pigmented organisms separately. The influence of food and different concentrations of humic acids were also investigated. The results showed that, after the treatments, the digestive gland presented the highest level of metal uptake for both elements. Food did not prove to induce significant changes in the pattern of accumulation and distribution within the different tissues. Instead, different concentrations of humic materials modified the pattern of accumulation and distribution of cadmium and lead but in a different way according to the metal. Elimination of cadmium from the soft tissues was considerably slow, presenting a redistribution over the time of depuration. Elimination of lead was faster in the digestive gland and gonads. After all the treatments, no significant differences were observed between nonpigmented and pigmented snails. |
| doi_str_mv | 10.1002/etc.5620191122 |
| format | Article |
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Elimination of cadmium from the soft tissues was considerably slow, presenting a redistribution over the time of depuration. Elimination of lead was faster in the digestive gland and gonads. After all the treatments, no significant differences were observed between nonpigmented and pigmented snails.</description><identifier>ISSN: 0730-7268</identifier><identifier>EISSN: 1552-8618</identifier><identifier>DOI: 10.1002/etc.5620191122</identifier><identifier>CODEN: ETOCDK</identifier><language>eng</language><publisher>Hoboken: Wiley Periodicals, Inc</publisher><subject>Animal, plant and microbial ecology ; Applied ecology ; Bioavailability ; Biological and medical sciences ; Biomphalaria glabrata ; Ecotoxicology, biological effects of pollution ; Effects of pollution and side effects of pesticides on protozoa and invertebrates ; Freshwater ; Fundamental and applied biological sciences. 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Instead, different concentrations of humic materials modified the pattern of accumulation and distribution of cadmium and lead but in a different way according to the metal. Elimination of cadmium from the soft tissues was considerably slow, presenting a redistribution over the time of depuration. Elimination of lead was faster in the digestive gland and gonads. After all the treatments, no significant differences were observed between nonpigmented and pigmented snails.</description><subject>Animal, plant and microbial ecology</subject><subject>Applied ecology</subject><subject>Bioavailability</subject><subject>Biological and medical sciences</subject><subject>Biomphalaria glabrata</subject><subject>Ecotoxicology, biological effects of pollution</subject><subject>Effects of pollution and side effects of pesticides on protozoa and invertebrates</subject><subject>Freshwater</subject><subject>Fundamental and applied biological sciences. 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Verrengia</creatorcontrib><creatorcontrib>Nahabedian, Daniel E.</creatorcontrib><creatorcontrib>Wider, Eva A.</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Aqualine</collection><collection>Pollution Abstracts</collection><collection>Toxicology Abstracts</collection><collection>Water Resources Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 3: Aquatic Pollution & Environmental Quality</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><jtitle>Environmental toxicology and chemistry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Guerrero, Noemí R. 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| identifier | ISSN: 0730-7268 |
| ispartof | Environmental toxicology and chemistry, 2000-11, Vol.19 (11), p.2762-2768 |
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| language | eng |
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| source | Wiley-Blackwell Journals |
| subjects | Animal, plant and microbial ecology Applied ecology Bioavailability Biological and medical sciences Biomphalaria glabrata Ecotoxicology, biological effects of pollution Effects of pollution and side effects of pesticides on protozoa and invertebrates Freshwater Fundamental and applied biological sciences. Psychology Gastropoda Humic acids Metals Toxicokinetics |
| title | Analysis of some factors that may modify the bioavailability of cadmium and lead by Biomphalaria glabrata |
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