THE ROLE OF TASTE IN FOOD SELECTION BY FRESH-WATER ZOOPLANKTON
THE ROLE OF TASTE IN FOOD SELECTION BY FRESH-WATER ZOOPLANKTON
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DOI：
10.1007/bf00377053
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发表时间：
1986-01-01
期刊：
影响因子：
2.7
通讯作者：
DEMOTT, WR
中科院分区：
文献类型：
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作者：
DEMOTT, WR
实验室实验与风味和未经处理的聚苯乙烯球显示不同类群的淡水浮游动物之间的味觉辨别的重大差异。桡足类表现出最强的反应，风味治疗。无节幼体和桡足类的哲水蚤（Diaptomus）和剑水蚤（剑水蚤）桡足类选择风味球未经处理的。此外，一个小的剑水蚤，Tropocyclops，积极喂养的衣原体（衣原体），但没有摄取未经处理的球体相同大小。与枝角类的味觉测试验证了摄入惰性颗粒的总体趋势，但也表现出家庭之间的重要差异。水蚤（4种），Chydorus（Chydoridae）和Diaphanosoma（Sididae）没有反应的风味处理，而2种bosminids选择性地摄入风味球。水蚤也喂养非选择性的混合物中的藻类和未经处理的领域，而Bosmina喜欢藻类未经处理的领域。不同种类的轮虫对调味剂处理表现出3种不同的反应：1）臂尾轮虫无选择性地进食，2）Filinia优先进食调味的6 μ m球体，和3）Polyyarhtra、Keratella、Synchaeta和Noltholca很少摄取任何球体。我们对浮游动物摄食机制的理解的最新进展有助于解释为什么一些分类群选择性地以调味颗粒为食，而另一些则不然。某些类群的能力，使用味道区分高，低质量的食物颗粒之间的竞争浮游动物物种和浮游食草动物和它们的食物资源之间的相互作用有重要的意义。
Laboratory experiments with flavored and untreated polystyrene spheres revealed major differences in taste discrimination among diverse taxa of freshwater zooplankton. Copepods showed the strongest responses to flavor treatments. Both nauplii and copepodites of calanoid (Diaptomus) and cyclopoid (Cyclops) copepods selected flavored spheres over untreated ones. Moreover, a small cyclopoid, Tropocyclops, actively fed on an alga (Chlamydomonas) but did not ingest untreated spheres of the same size. Taste tests with cladocerans verified an overall tendency to ingest inert particles but also demonstrated important differences between families. Daphnids (4 species), Chydorus (Chydoridae) and Diaphanosoma (Sididae) did not respond to flavor treatments, while 2 species of bosminids selectively ingested flavored spheres. Daphnia also fed nonselectively in mixtures of algae and untreated spheres while Bosmina preferred algae over untreated spheres. Different species of rotifers exhibited 3 distinct responses to the flavor treatments: 1) Brachionus fed nonselectively, 2) Filinia fed preferentially on flavored 6 .mu.m spheres, and 3) Polyarhtra, Keratella, Synchaeta, and Noltholca infrequently ingested any spheres. Recent advances in our understanding of the feeding mechanisms of zooplankton help to explain why some taxa feed selectively on flavored particles while others do not. The ability of certain taxa to use taste to discriminate between high and low quality food particles has important implications for competition between zooplankton species and for interaction between planktonic grazers and their food resources.