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本文对东山湾褐菖鲉的摄食习性、胃含物和摄食强度的季节变化以及消化器官与其食性的相互关系进行了探讨。结果表明,褐菖鲉以底栖生物食性为主,兼食游泳动物,主要摄食短尾类、蛇尾类、鱼类、长尾类、歪尾类、端足类和多板类等生物类群。其食料和生物组成随季节而变化。摄食强度以春季最高(摄食率47.34%,胃饱满系数14.77‰)、夏季最低(摄食率25.5%、胃饱满系数6.09‰)。该鱼生殖行为对摄食没有明显的影响,消化器官则与其广食性相适应。在东山湾开展褐菖鲉的人工增养殖工作具有良好的前景。
In this paper, the relationship between the eating habits, the seasonal changes of gastric contents and feeding intensity, and the relationship between digestive organs and their feeding habits were investigated in Dongshan Bay. The results showed that the brown calamus mainly benthic feeding habits, eating swimming animals, the main feeding short-tailed, snake-tail, fish, long tail, croak, end amphibian and multi-board and other biological groups. Its food and biological composition changes with the seasons. The feeding intensity was the highest in spring (feeding rate 47.34%, gastric full factor 14.77 ‰), lowest in summer (feeding rate 25.5%, gastric fullness coefficient 6.09 ‰). Reproductive behavior of the fish had no significant effect on food intake, while digestive organs were adapted to their wide range of food habits. Artificial cultivation of seabuckthorn in Dongshan Bay has good prospects.