飼育水の酸素分圧低下によるマダイの血液性状変化〔海産魚のストレス反応に関する研究-3-〕

概要

論文の詳細を見る
Red sea bream Pagrus major TEMMINCK et SCHLEGEL, exhibited changes of haematological constituents against the rapid decrease of oxygen levels by 3.75ml/l for half an hour and by 3.5ml/l for four hours. The typical changes were hyperglycemia and the elevation of serum cortisol level. There also appeared increases of haematocrit valuea and haemoglobin contents. These typical haematological changes were not observed against the slow reduction of oxygen levels by 1.72ml/l and by 1.29m/l for four hours. Three phases in the stress reactions were identified through the examination of Euclidean distances based on mean values of haematocrit, serum glucose level and serum sodium levl. They are the control phase, the reactive phase where hyperglycemia and high haematocrit value were noticeable, and the peculiar phase where the three variables exhibited remarkably low levels.
日本水産學會の論文