Histological Changes in Some Vesceral Organs of the Oriental Goby, Acanthogobius flavimanus after Spawning Season, with Reference to Starvation

Abstract

Histological changes in the intestinal, liver and ovarian tissues were investigated to clarify starvation of the oriental goby after spawning season. In the fishes reared in laboratory aquaria, almost all matured within one year and morphological changes of haggared body occurred in according to the appearence of no feeding on April. The fishes died until the following spawning season. Their intestinal, liver and ovarian tissues exhibited the regressive change caused by functional disorder-induced starvation. These finding indicated that most of this species may be a physiological death after spawning.