Limnoperna fortunei의 초기발생 및 유생에 관한 연구

Study on the Early Development and Larvae of Limnoperna fortunei

  • 최신석 (충남대학교 이과대학 생물학과) ;
  • 신창남 (충남대학교 이과대학 생물학과)
  • Choi, Shin Sok (Department of Biology, College of Natural Science, Chungnam National University) ;
  • Shin, Chang Nam (Department of Biology, College of Natural Science, Chungnam National University)
  • 발행 : 1985.12.01

초록

The maturity of gonads, early development of the fertilized egg, spawning period, and morphogenesis of larvae in Limnoperua fortunei were studied from October, 1981 to November, 1982 as on attempt to identify its life cycle. 1) Active motility of its sperm was observed at late May, and matured egg could be found at late June. 2) It was estimated that the spawning was occured from late August. This species was belong to the short-term breeder because it finished its spawning within 20 days. 3) It has free-living trochophore and D-shaped larva stage. The shell lengths of early, middle, and D-larval stage were $140.0{\mu}m$, $167.6{\mu}m$ and $210.0{\mu}m$, respectively. The shell heigths of each stage were $97.3{\mu}m$, $137.6{\mu}m$ and $178.2{\mu}m$, respectively.

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