한국패류학회지 (The Korean Journal of Malacology)

한국패류학회 (The Malacological Society of Korea)
권호 표지

동중국해에 분포하는 개조개의 생식생물학적 연구

Reproductive Biology of the Purplish Washington Clam, Saxidomus prupuratus in the East China Sea

  • 투고 : 2010.10.06
  • 심사 : 2010.11.04
  • 발행 : 2010.12.31
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초록

개조개 표본은 동중국해의 진해만에서 잠수선에 의해 어획된 것을 2002년 1월부터 12월까지 매월 120개체씩 채집된 것이다. 생식소 발달단계는 비활성기 (11월-12월), 초기활성기 (11월-이듬해 1월), 후기활성기 (12월-이듬해 2월), 성숙기 (2월-5월과 10월), 산란기 (4월-12월) 등 5단계로 구분되었다. 주산란시기 6월부터 8월까지이었다. 성숙각장은 71-85mm로 추정되었다. 암컷과 수컷 성비는 유의한 차가 없었으므로 1:1이었다.

Reproductive biology of the purplish Washington clam, Saxidomus purpuratus was investigated based on the samples captured in Jinhae Bay, the East China Sea from January to December 2002. The gonad index (GI) began to increase in January, reached the maximum value in March. The reproductive cycle of this species can be divided into five successive stages: the early active stage (from November to January), the late active stage (from December to February), the ripe stage (from February to May and October), the spawned stage (from May to December), and inactive stage (from November to December). The spawning period was from April to December, and the main spawning occurred between June and August. The shell length at 50% group maturity was estimated to be 71.85 mm. The Sex ratio of this species was not significantly different a 1:1 sex ratio (P > 0.05).

키워드

참고문헌

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