한국수산과학회

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

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kfas, vol. 53, no. 1, pp.9-18, February, 2020
DOI. https://doi.org/10.5657/KFAS.2020.0009

Maturity and Spawning of the Chub Mackerel Scomber japonicus in the
Korean Waters
한국 연근해 고등어(Scomber japonicus)의 성숙 및 산란 특성

김소라*·김중진·박희원·강수경·차형기·백혜자1
국립수산과학원 연근해자원과, 1부경대학교 자원생물학과

We investigated the maturity and spawning dynamics of chub mackerel Scomber japonicus in Korean waters using
samples collected by a large purse seine fishery from January 2013 to December 2017. We analyzed
sex ratio, monthly
maturity stage, gonadosomatic index (GSI), Fulton’s condition factor (K), and fork length at 50% group maturity.
Spawning occurred from March to June, with a peak in May. We detected a significant difference in sex ratio (χ2 test,
P<0.05). The relationship between fork length and body weight was expressed as BW=0.0025FL3.4693. We estimated
50% group maturity at a female fork length of 29.3 cm.

Keyword : Chub mackerel, Scomber japonicus, Maturity, Spawning, Korean waters

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