Anaerobic metabolism in the shrimp Crangon crangon exposed to hypoxia, anoxia and hydrogen sulfide
Hagerman, L.; Vismann, B. (1995). Anaerobic metabolism in the shrimp Crangon crangon exposed to hypoxia, anoxia and hydrogen sulfide. Mar. Biol. (Berl.) 123(2): 235-240. http://dx.doi.org/10.1007/BF00353614
In: Marine Biology: International Journal on Life in Oceans and Coastal Waters. Springer: Heidelberg; Berlin. ISSN 0025-3162; e-ISSN 1432-1793, more
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| Authors | | Top |
- Hagerman, L., more
- Vismann, B.
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| Abstract |
The brown shrimp Crangon crangon was collected in the Penzé estuary, Bretagne, in April 1994 and exposed to hypoxia, anoxia and combinations of hypoxia and sulfide. Exposure to sulfide induced total anaerobic metabolism even at an oxygen saturation which would otherwise permit totally aerobic metabolism. In addition to preventing aerobic metabolism there was a direct toxic effect of sulfide. Haemocyanin oxygen affinity (p50) values from non-stressed C. crangon were relatively low. The p50 values all exceed those where environmentally induced lactate accumulation occurs. It seems unlikely that lactate is an affinity modulating factor under environmental hypoxia. |
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