Influence of the water-accommodated fraction of no. 2 fuel oil on energetics of Cancer irroratus larvae |
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| Authors: | D M Johns J A Pechenik |
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| Institution: | (1) Environmental Research Laboratory, United States Environmental Protection Agency, South Ferry Road, 02882 Narragansett, Rhode Island, USA;(2) Department of Biology, Tufts University, 02155 Medford, Massachusetts, USA |
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| Abstract: | The influence of the water-accommodated fraction of No. 2 fuel oil on aspects of larval development of Cancer irroratus (Say) has been investigated. Rates of survival, respiration, ingestion and growth were estimated for both oil-treated and untreated larvae. Larvae reared in oil-treated water exhibited lower survival to megalopa than did larvae reared in untreated water. The presence of oil also altered several aspects of larval energetics. Reductions were seen in food consumption and growth rate while the metabolic cost of maintenance increased. One overall effect that may occur as a result of lowered larval survival and growth rate would be the reduction in larval recruitment in oil-polluted areas. |
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