PRELIMINARY RESULTS ON DIET OF STREAM INVERTEBRATE SPECIES : THE MEIOFAUNAL ASSEMBLAGES
PRELIMINARY RESULTS ON DIET OF STREAM INVERTEBRATE SPECIES : THE MEIOFAUNAL ASSEMBLAGES
复制标题
溪流无脊椎动物物种饮食的初步结果：小型动物群落
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
P. Schmid
中科院分区：
文献类型：
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作者：
J. M. Schmid;P. Schmid
本文调查了32种无脊椎捕食动物的肠道内容物。此外，视频技术被用来评估小型底栖动物物种的食性。轮虫和摇蚊科幼虫是小型鳞翅目和粗足类最常见的食物来源。轮虫也是其他小型底栖动物类群的常见食物，如捕食性的小轮藻、线虫、寡毛纲和轮虫。许多小型底栖动物类群的进料机制，如过滤进料，悬浮进料和/或浏览，表明对生物膜涂层不同颗粒大小类的强烈影响。有些物种似乎选择生物膜层内的特定食物，而其他物种则根据口腔孔径摄取整个颗粒。
Gut contents of 32 invertebrate predator species inhabiting the bed sediments of a gravel stream were investigated. In addition, video techniques were used to assess the feeding habits of meiofaunal species. Rotifera and larval instars of Chironomidae were among the most common food resources of small-sized plecopterans and tanypods. Rotifers were also a common food item of other meiofaunal taxa such as predatory microturbellarians, nematodes, oligochaetes, and rotifers. The feeding mechanisms such as filter-feeding, suspension feeding and/or browsing of many meiofaunal taxa, suggest a strong impact on the biofilm coating different particle size-classes. Some species seem to select particular food items within the biofilm layer, while others ingest whole particles depending on oral aperture.