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- W4244286239 abstract "The results of the present investigation on a bivalve, Fulvia mutica (REEVE) from Suo-nada, Inland Sea of Japan are as follows: (1) This shell has two spawning seasons in a year, viz., February-June, and August-Nove-mber. April-May and September-October are in heigt of the spawning season respectively. (2) This animal is a hermaphorodite. (3) Sexual maturity seems to be reached one year after hatching, and the biological minimum size is about 3.8cm. in shell-length. (4) Sexual castration is found to exist in those individuals having cercaria parasite: in the gonad of such shells, no ovary is found. A few spermatozoa present. (5) Mature eggs measure 110μ and 75μ in longer and shorter diameter respectively. Spermatozoa about 60μ in overall length." @default.
- W4244286239 created "2022-05-12" @default.
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- W4244286239 date "1955-01-01" @default.
- W4244286239 modified "2023-10-12" @default.
- W4244286239 title "Ecological Studies of Fulvia mutica (REEVE)-II" @default.
- W4244286239 doi "https://doi.org/10.2331/suisan.21.27" @default.
- W4244286239 hasPublicationYear "1955" @default.
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