Growth and Breeding Ecology of the Hippolytid Shrimp Eualus sinensis (Yu)(Ecology)

概要

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The growth and breeding ecology were examined in a population of shrimp (Eualus sinensis) throughout one year. The secondary sexual characters of individual young which appeared between March and July could be distinguished in November. Little growth was observed in males from December to April of the following year, while females grew steadily until February. Adults of both sexes disappeared from the area under investigation in early July. There was one breeding season from mid-January to early July, and it peaked from late January to late March. Between body length (L) and clutch size (N), the regression equation N=9.77L^<1.4596> (r=0.62) was applicable to the population. From the condition of the ovary, it was inferred that one female bred more than twice during the breeding season, but definite accompanying was not perceived from the population investigated in the field.
社団法人日本動物学会の論文
1985-04-15