トリガイの生態学的研究-I : 成長について
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概要
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A study on growth of Fulvia mutica (REEVE) from Suo-dada, Inland Sea of Japan was carried out. The results are as follows: (1) Ring formation of shell of this bivalve seems to take place once in a year, during the months August-January in the first ring, and April-January in the second and other ones. Causative factors for ring formation appear to be water temperature and physiological rhythm of spawning. (2) Shell-length becomes about 69mm., 85mm. in one and two full age respectively. In shells of ages more than three, shell-length is above 85mm.
- 公益社団法人 日本水産学会の論文