Food habits of small fishes in seagrass habitats in Trang, southern Thailand
Food habits of small fishes in seagrass habitats in Trang, southern Thailand
复制标题
泰国南部董里海草栖息地小鱼的食性
DOI：
10.1007/s12562-012-0485-5
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发表时间：
2012
影响因子：
1.9
通讯作者：
Sano M
中科院分区：
文献类型：
--
作者：
Horinouchi M;Tongnunui P;Furumitsu K;Nakamura Y;Kanou K;Yamaguchi A;Okamoto K;Sano M
为了弄清海草类鱼类的食性，我们对采自广州海草栖息地的42种鱼类的肠道内容物进行了研究。13个物种在食物使用模式上表现出个体发育和/或季节性变化。较小的个体一般捕食小型浮游动物(例如，桡足类幼虫)或小型底栖/附生甲壳类(例如，弓形桡足类)，随后随着生长而改变为其他被捕食的动物(例如，虾、蟹、碎屑和丝状藻类)。海草鱼群落最重要的食物包括底栖/附生甲壳类、碎屑类和浮游桡足类。基于食物重叠的聚类分析表明，海草鱼由8个摄食团组成(大型底栖/附生甲壳类、碎屑类、浮游动物、小型底/附生甲壳类、软体动物、无脊椎卵、多毛类和鱼食性)。其中，前三个行会是最丰富的代表，而后三个行会每个只有一个物种代表。
To clarify the feeding habits of seagrass fishes, we examined the gut contents from 42 fish species collected in seagrass habitats in Trang. Thirteen species showed ontogenetic and/or seasonal changes in food-use patterns. Smaller individuals generally preyed on small planktonic items (e.g., copepod larvae) or small benthic/epiphytic crustaceans (e.g., harpacticoid copepods), with subsequent changes to other prey items (e.g., shrimps, crabs, detritus and filamentous algae) with growth. The most important dietary items for the seagrass fish assemblages comprised benthic/epiphytic crustaceans, detritus, and planktonic copepods. Cluster analysis based on dietary overlaps showed that the seagrass fishes comprised eight feeding guilds (large benthic/epiphytic crustacean, detritus, planktonic animal, small benthic/epiphytic crustacean, mollusc, invertebrate egg, polychaete, and fish feeders). Of these, the first three guilds were the most abundantly represented, whereas the last three were each represented by only a single species.