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- W1965642559 abstract "Sex ratio and breeding habits of Planaxis sulcatus were studied for Japanese and other Indo-Pacific populations. On the coast of the Kii Peninsula, Japan, the gonad of P. sulcatus is developed from June through August, when pairing of the snails is observed. The females contain embryos in their brood pouches and release veligers. New recruits appear in autumn, grow during the next spring and summer, and merge with the older-year cohort in size in early autumn. The position on the shore of the first-year and the older-year snails is lower in spring and early summer than in other seasons. Sex ratio was significantly different between populations, seemingly due to different percentages of large snails which were mostly females. Inspection of the samples from a wider geographic range, from Japan to India, detected various sex ratios among the localities; females were dominant in the samples composed exclusively of large individuals. The most developed embryos in the female brood pouches were veligers. Parthenogenetic development and rearing of embryos up to crawling juveniles, which have been reported for the populations in the inner Arabian Sea, does not seem to hold for these other Indo-Pacific populations." @default.
- W1965642559 created "2016-06-24" @default.
- W1965642559 creator A5078438216 @default.
- W1965642559 date "1997-01-01" @default.
- W1965642559 modified "2023-10-18" @default.
- W1965642559 title "SOME ASPECTS OF THE BREEDING BIOLOGY OF <i>PLANAXIS SULCATUS</i> (BORN) (GASTROPODA: PLANAXIDAE)" @default.
- W1965642559 doi "https://doi.org/10.1093/mollus/63.1.49" @default.
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