急性暴露于脱氢枞酸（DHAA）的虹鳟鱼某些代谢和血液学反应的季节性变化。

Seasonal changes in certain metabolic and haematologic responses of Salmo gairdneri acutely exposed to dehydroabietic acid (DHAA).

作者信息

Soivio A, Lindgren S, Oikari A

出版信息

Comp Biochem Physiol C Comp Pharmacol Toxicol. 1983;75(2):281-4. doi: 10.1016/0742-8413(83)90193-7.

Abstract

Physiological effects of a high sublethal DHAA exposure on respiration, ammonia excretion and haematology of rainbow trout were studied in July at 15 degrees C and in December at 10 degrees C. In the control fish plasma glucose concentration was higher (P less than 0.001) in December than in July, but plasma protein (P less than 0.02) and Na+ (P less than 0.001) concentrations were lower. Due to DHAA exposure the oxygen consumption (P less than 0.01) and ammonia excretion rates (P less than 0.001) increased significantly in July but not in December. In December a significant decrease in plasma Cl- and increase in plasma protein concentration occurred with a slight haemoconcentration. Microscopic examination of the gills, performed on the trout in December only, revealed a 25% hypertrophy of secondary lamellar structures due to the exposure.

摘要

7月在15摄氏度以及12月在10摄氏度的条件下，研究了高亚致死剂量二羟基丙酮（DHAA）暴露对虹鳟呼吸、氨排泄和血液学的生理影响。对照鱼中，12月的血浆葡萄糖浓度高于7月（P<0.001），但血浆蛋白（P<0.02）和钠离子（P<0.001）浓度较低。由于DHAA暴露，7月的耗氧率（P<0.01）和氨排泄率显著增加（P<0.001），而12月未出现这种情况。12月，血浆氯离子显著降低，血浆蛋白浓度升高，伴有轻微的血液浓缩。仅对12月的虹鳟进行鳃的显微镜检查发现，暴露导致二级鳃小片结构肥大25%。