Feeding ecology of Hexagrammos otakii in Haizhou Bay

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PDF HTML阅读 XML下载 导出引用 引用提醒 海州湾大泷六线鱼摄食生态研究 DOI: 作者: 作者单位: 1. 中国海洋大学 水产学院, 山东 青岛 266003;2. 青岛海洋科学与技术国家实验室, 海洋渔业科学与食物产出过程功能实验室, 山东 青岛 266237;3. 中国科学院 海洋研究所, 中国科学院海洋生态与环境科学重点实验室, 山东 青岛 266071 作者简介: 许莉莉(1988-),女,硕士研究生,主要从事渔业资源生态学研究.E-mail:xvlili1990@163.com 通讯作者: 中图分类号: S931 基金项目: 国家自然科学基金项目（31772852）；中央高校基本科研业务费专项（201562030，201612004）；青岛海洋科学与技术国家实验室鳌山科技创新计划项目（2015ASKJ02）. Feeding ecology of Hexagrammos otakii in Haizhou Bay Author: Affiliation: 1. College of Fisheries, Ocean University of China, Qingdao 266003, China;2. Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China;3. Key Laboratory of Marine Ecology & Environmental Sciences of Chinese Academy of Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China Fund Project: 摘要 | 图/表 | 访问统计 | 参考文献 | 相似文献 | 引证文献 | 资源附件 | 文章评论 摘要:根据2011年3—12月在海州湾及其邻近海域进行的5个航次底拖网调查，通过分析531尾大泷六线鱼（）的胃含物样品，对其摄食生态进行了初步研究。结果表明，大泷六线鱼摄食的饵料种类有60余种，虾类、蟹类、双壳类是其最主要的3种饵料类群，优势饵料生物有东方缝栖蛤（ sp.）等；其食物组成存在明显的季节变化和体长变化，全年均大量摄食虾类，夏季还摄食一定量的蟹类，秋季摄食多毛类和头足类的比例较高。随着体长的增长，大泷六线鱼摄食的饵料生物由小型甲壳类逐渐转变为体型较大的虾类和鱼类。大泷六线鱼的空胃率和平均胃饱满指数存在明显的季节变化，春季空胃率最高，冬季空胃率最低；平均胃饱满指数春季最高，秋季最低。典范对应分析表明，体长是影响大泷六线鱼摄食的主要因子，其次是底层水温、叶绿素a和pH。 Abstract:The present study investigated the feeding habits of in Haizhou Bay and adjacent waters by analyzing the stomach contents of 531 individuals collected from March to December 2011. More than 60 prey species were investigated, with the dominant species being sp. and the main prey groups being shrimp, crabs, and bivalves. The feeding habits of exhibited significant seasonal variation. Shrimp were a major prey group during all four seasons, but a large number of crabs were consumed during summer, whereas the greatest proportions of Polychaeta and Cephalopoda prey were observed during autumn. Ontogenetic variation in diet composition was also observed. For example, small mainly consumed small crustaceans, whereas larger individuals mainly consumed fish and shrimp. Feeding intensity (i.e., percentage of empty stomachs and mean stomach fullness index) also exhibited seasonal variation. The greatest empty stomach percentages and mean stomach fullness indices were both observed during spring, whereas the lowest empty stomach percentages and mean stomach fullness indices were observed during winter and autumn, respectively. Canonical correspondence analysis (CCA) indicated that body length was the most important factor affecting the diet composition of , followed by sea bottom temperature, local chlorophyll a, and seawater pH. 参考文献 相似文献 引证文献