Studies on the Distribution and Ecology of Neocaridina denticulata in the Yumesaki River System, Japan. I. Fauna and Distribution of Decapod Crustaceans, with Special Reference to Neocaridina denticulata, Inhabiting the Yumesaki River System, Japan.

概要

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A faunal and distributional survey of decapod crustaceans inhabiting the Yumesaki River system was carried out from 1990 to 1991. Sampling stations totalled 104. Seven species of Macrura and seven of Brachyura were collected. <I>Neocaridina denticulata</I> was found in almost every part of the river except the furthest points both upstream and downstream. This species is commonly found along this river. This is a typical feature of rivers which flow into the Seto Inland Sea. From a macrohabitat point of view <I>Neocaridina denticulata</I> could be said to be the most common and predominant species. The predominance of this species is attributed to both its flexibility of ecological niche and lack of competition with other species.
日本水産増殖学会の論文