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ACOMS+ 및 학술지 리포지터리 설명회

  • 한국과학기술정보연구원(KISTI) 서울분원 대회의실(별관 3층)
  • 2024년 07월 03일(수) 13:30
 

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한국 득량만 낙지 (Octopus minor) 의 자원생물학적 연구

Fisheries Biology of Octopus minor in the Deukryang Bay in the Southern Coast of Korea

Abstract

The purpose of the present study is to get information on the reproductive characteristics of Octopus minor, especially focusing on monthly variations in mantle length and gonadosomatic index, sex ratio, fecundity, group maturity for the effective management of this biological resource. Gonadosomatic index showed a peak between July and September in females. The fecundity ranged from 97 to 213 eggs with the total weight of 96.8 g and 270.7 g, respectively. There was a good relationship between total weight (TW) and fecundity (F): F = 2.937TW0.752 (r2 = 0.80). The mantle length (ML) and total weight (TW) showed also a relationship: TW = 0.702ML2.417 (r2 = 0.72) in female, and TW = 0.605ML2.539 (r2 = 0.74) in male. The sex ratio (female/male) of O. minor was 1/0.85 (female 54.0%) showing predomination of female.

keywords
Octopus minor, sex ratio, fecundity, group maturity, gonadosomatic index

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