한국수산과학회

ISSN NUMBER

  • pISSN : 2234-8395
  • |
  • eISSN : 2234-1757

Open Access Journal

UTIL MENU



SEARCH FOR ARTICLE

검색

kfas, vol. 53, no. 1, pp.27-35, February, 2020
DOI. https://doi.org/10.5657/KFAS.2020.0027

Maturation and Spawning of the Filefish Thamnaconus modestus in
Coastal Waters of Korea
말쥐치(Thamnaconus modestus)의 성숙과 산란

최정화·전복순·김재원1·이정훈2·임양재·이해원*
국립수산과학원 수산자원연구센터, 1강원도립대학교, 2독도수산연구센터

Filefish Thamnaconus modestus has seen a sharp decline in their catch, we must strive for continuous resource management.
We investigated the maturation and spawning of T. modestus by trawl net and set net from January 2018
to November 2019, off Jeju Is. and in coastal waters of North Gyeongsang Province's Korea. We analyzed monthly
change total length (cm), gonadosomatic index (GSI) and maturity stages, egg diameter (mm), the relations fecundity
and total length. GSI for Jeju Is. was the highest in April (3.17, 2.43), and decreased from July to 1.73 in August
and GyeongBuk's GSI was the highest in Apri l (1.86, 2.58), followed by the high in May and the sharp decline in
September, which is 0.23. Using a histological method, the annual reproductive cycle of T. modestus can be divided
into 5stage in females; the early growing stage (Jan.-Mar.), late growing stage (Apr.-May), Mature stage, spent stage
(Oct.), Recover and resting stage (Nov.-Jan.).We estimate the TL at 50% maturity as 24.1cm for female, fecundity
ranged from 560,044 eggs at 23.4cm total length to 1,580,387 eggs at 36.6.cm TL.

Keyword : Filefish, Thamnaconus modestus, Maturation and spawning

Download :


Copyrightⓒ 2014 The Korean Society of Fisheries and Aquatic Science
All Rights Reserved.

Editorial Office Pukyong National University, 45 Yongso-ro, Nam-gu, Busan 608-737, Korea TEL : 82.51.629.7363 | FAX : 82.51.626.1039 | E-mail : kosfas@naver.com