Anaerobic wintering of crucian carp (Carassius carassius L.)--II. Metabolic products.
In long-term experimental anoxia (up to 140 days) crucian carp excreted ethanol and acetic acid. The maximum concentration of ethanol found in fish blood was ca 0.1%. The excretion rate of ethanol at temperatures from -0.5 to +5 degrees C was ca 25 micrograms/g fish wet wt/hr, but increased rapidly with increasing temperature. At 2 and 5 degrees C the ethanol excretion rate was independent of fish size, but at 12 and 18 degrees C a higher rate was observed in smaller fish. The decrease of water pH below 5 in the experimental vial during long anoxia was assumed to be due to excretion of acid compounds by the fish.
Holopainen
I J
IJ
Hyvärinen
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Piironen
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D000064:Acclimatization; D000085:Acetates / Q000378:metabolism; D000693:Anaerobiosis; D000818:Animals; D002980:Climate; D003530:Cyprinidae / Q000378:metabolism*; D000431:Ethanol / Q000378:metabolism; D006054:Goldfish / Q000378:metabolism*; D006863:Hydrogen-Ion Concentration; D007700:Kinetics
D000085:Acetates; D000431:Ethanol