Difference between revisions of "Pollution and scavengers"

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''Homarus gammarus'' © Vincent Zintzen  
 
''Homarus gammarus'' © Vincent Zintzen  
 
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Decomposers typically live on the sea floor and include species like crabs, opossum shrimps, 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>
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This causes decomposers to have a higher pollutant contents than other [[pollution and zoobenthos|zoobenthos]]. 
  
Decomposers feed on decaying organic matter, which can often contain high concentrations of 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>
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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> This vulnerability caused the crab fishery of Chesapeake Bay in the 1960s collapse due to a pesticide called keptone.  
This causes decomposers, like crabs, to have a higher pollutant contents than other [[pollution and zoobenthos|zoobenthos]]. 
 
 
 
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> This vulnerability caused the crab fishery of Chesapeake Bay in the 1960s collapse 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.

Revision as of 09:32, 23 July 2009

Homarus gammarus © Vincent Zintzen

Decomposers typically live on the sea floor and include species like crabs, opossum shrimps, whelks and starfish.[1] They feed primary on decaying organic matter, which can often contain high concentrations of pollutants. [2] This causes decomposers to have a higher pollutant contents than other zoobenthos.

Crabs, especially their larvae, appear to be vulnerable to pesticides [3] This vulnerability caused the crab fishery of Chesapeake Bay in the 1960s collapse 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: Flame retardants organotin compounds and surfactants in opossum shrimps of the Scheldt estuary.[4]

Case study 2: Effects of endocrine disrupting compounds on embryonic development of opossum shrimps.G[5]

References

  1. 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
  2. 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
  3. 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.
  4. Verslycke, T.; Vethaak, A.D.; Arijs, K.; Janssen, C.R. (2004). Flame retardants, surfactants and organotins in sediment and mysid shrimp of the Scheldt estuary (The Netherlands). Environ. Poll. 136(1): 19-31
  5. hekiere, A.; Fockedey, N.; Verslycke, T.; Vincx, M.; Janssen, C.R. (2007). Marsupial development in the mysid Neomysis integer (Crustacea: Mysidacea) to evaluate the effects of endocrine-disrupting chemicals. Ecotoxicol. Environ. Saf. 66(1): 9-15