Han Dong-Yan, Xue Ying, Ji Yu-Peng, Ma Qiu-Yun
College of Fisheries, Ocean University of China, Qingdao 266003, Shandong, China.
Ying Yong Sheng Tai Xue Bao. 2013 May;24(5):1446-52.
From February to November 2011, four seasonal bottom trawl surveys were conducted in the Jiaozhou Bay of China. A total of 624 Amblychaeturichthys hexanema individuals were collected to analyze their stomach contents, with the feeding ecology of A. hexanema studied. The prey items of A. hexanema included more than 40 species, among which, Alpheus japonicas, Philine kinglippini, and Leptochela gracilis were the dominant prey species. The diet composition of A. hexanema had an obvious seasonal variation, with the gastropods, fish, decapods, and microcrustacean being the most important prey items in spring, summer, autumn, and winter, respectively. This phenomenon could be mainly related to the seasonal variations in the species and biomass of the preys in Jiaozhou Bay. With the increase of predator size, the prey species of A. hexanema varied from small size copepod to larger sizes P. kinglippini, Raphidopus ciliates, and A. japonicas. The canonical correspondence analysis (CCA) showed that water temperature and salinity were the most important factors affecting the feeding of A. hexanema, followed by predator size and water pH.
2011年2月至11月，在中国胶州湾进行了4次季节性底拖网调查。共采集了624尾六丝钝尾虾虎鱼个体以分析其胃含物，对六丝钝尾虾虎鱼的摄食生态进行了研究。六丝钝尾虾虎鱼的猎物种类超过40种，其中，日本鼓虾、金氏索足蛤和细螯虾为主要猎物种类。六丝钝尾虾虎鱼的食物组成具有明显的季节变化，腹足类、鱼类、十足类和小型甲壳动物分别为春、夏、秋、冬季最重要的猎物种类。这种现象可能主要与胶州湾猎物种类和生物量的季节变化有关。随着捕食者个体大小的增加，六丝钝尾虾虎鱼的猎物种类从小型桡足类变化为较大型的金氏索足蛤、纤毛柔鱼和日本鼓虾。典范对应分析（CCA）表明，水温、盐度是影响六丝钝尾虾虎鱼摄食的最重要因素，其次是捕食者个体大小和水体pH值。
