Difference between revisions of "Pollution and scavengers"
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| − | [[Image: | + | [[Image:wolhandkrab.jpg|thumb|right|200px| <div style="text-align: center;"> |
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| − | Decomposers feed on decaying organic matter, which can | + | Decomposers typically live on the sea floor and include species like crabs, hermit crabs, whelks and starfish.<ref> Moore P.G., Howarth J., 1996 Foraging by marine scavengers: Effects of relatedness, bait damage and hunger. Journal of Sea Research, Volume 36, Issues 3-4, P. 267-273 </ref> They feed primary on decaying organic matter, which can often contain high concentrations of [[pollutant|pollutants]]. <ref>Voorspoels, S.; Covaci, A.; Maervoet, J.; De Meester, I.; Schepens, P. (2004). Levels and profiles of PCBs and OCPs in marine benthic species from the Belgian North Sea and the Western Scheldt Estuary. Mar. Pollut. Bull. 49(5-6): 393-404</ref> |
| − | + | Therefore, decomposers tend to have higher pollutant contents than other [[pollution and zoobenthos|zoobenthos]]. This although they both (unlike [[pollution and marine mammals|marine mammals]] and [[pollution and sea birds|sea birds]]) also acquire a large part of their pollutants through direct contact with the water; while acquiring oxygen from the water, pollutants can be [[adsorption|adsorbed]] as well. | |
| − | Crabs, especially larvae, appear to be vulnerable to pesticides <ref>Levinton, J.S. (2001). Marine biology: function, biodiversity, ecology. 2nd Edition. Oxford University Press: New York, NY (USA). ISBN 0-19-514172-5. xi, 515, col. pl. pp.</ref> | + | Crabs, especially their larvae, appear to be vulnerable to pesticides<ref>Levinton, J.S. (2001). Marine biology: function, biodiversity, ecology. 2nd Edition. Oxford University Press: New York, NY (USA). ISBN 0-19-514172-5. xi, 515, col. pl. pp.</ref>, which resulted during the 1960s in the collapse of the Chesapeake Bay crab fishery, due to a pesticide called keptone. |
Below you can find some links to Belgian case studies on ecotoxicology in marine scavengers. | Below you can find some links to Belgian case studies on ecotoxicology in marine scavengers. | ||
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== Case studies == | == Case studies == | ||
| + | Case study 1: [[Common starfish can act as a bioindicator for heavy metal pollution]]<ref>Temara, A.; Skei, J.M.; Gillan, D.; Warnau, M.; Jangoux, M.; Dubois, Ph. (1998). Validation of the asteroid Asterias rubens (Echinodermata) as a bioindicator of spatial and temporal trends of Pb, Cd, and Zn contamination in the field. Mar. Environ. Res. 45(4-5): 341-356</ref> | ||
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==References== | ==References== | ||
<references/> | <references/> | ||
| + | {{author | ||
| + | |AuthorID=19826 | ||
| + | |AuthorFullName=Daphnis De Pooter | ||
| + | |AuthorName=Daphnisd}} | ||
| − | [[Category: | + | [[Category:Ecotoxicology]] |
[[Category:Coastal and marine pollution]] | [[Category:Coastal and marine pollution]] | ||
Latest revision as of 17:44, 5 November 2019
Decomposers typically live on the sea floor and include species like crabs, hermit crabs, whelks and starfish.[1] They feed primary on decaying organic matter, which can often contain high concentrations of pollutants. [2] Therefore, decomposers tend to have higher pollutant contents than other zoobenthos. This although they both (unlike marine mammals and sea birds) also acquire a large part of their pollutants through direct contact with the water; while acquiring oxygen from the water, pollutants can be adsorbed as well.
Crabs, especially their larvae, appear to be vulnerable to pesticides[3], which resulted during the 1960s in the collapse of the Chesapeake Bay crab fishery, due to a pesticide called keptone.
Below you can find some links to Belgian case studies on ecotoxicology in marine scavengers.
Case studies
Case study 1: Common starfish can act as a bioindicator for heavy metal pollution[4]
References
- ↑ Moore P.G., Howarth J., 1996 Foraging by marine scavengers: Effects of relatedness, bait damage and hunger. Journal of Sea Research, Volume 36, Issues 3-4, P. 267-273
- ↑ Voorspoels, S.; Covaci, A.; Maervoet, J.; De Meester, I.; Schepens, P. (2004). Levels and profiles of PCBs and OCPs in marine benthic species from the Belgian North Sea and the Western Scheldt Estuary. Mar. Pollut. Bull. 49(5-6): 393-404
- ↑ Levinton, J.S. (2001). Marine biology: function, biodiversity, ecology. 2nd Edition. Oxford University Press: New York, NY (USA). ISBN 0-19-514172-5. xi, 515, col. pl. pp.
- ↑ Temara, A.; Skei, J.M.; Gillan, D.; Warnau, M.; Jangoux, M.; Dubois, Ph. (1998). Validation of the asteroid Asterias rubens (Echinodermata) as a bioindicator of spatial and temporal trends of Pb, Cd, and Zn contamination in the field. Mar. Environ. Res. 45(4-5): 341-356
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