우리나라 덕적도 주변해역에 서식하는 민꽃게( Charybdis japonica)의 성숙과 산란
Maturity and Spawning of Asian Paddle Crab Charybdis japonica in the Coastal Waters of the Deokjeok Islands, Korea
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참고문헌
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초록
The Asian Paddle Crab Charybdis japonica is an economically important species of crustacean inhabiting the waters of the West Sea of Korea. This study investigated the gonadal development of C. japonica and size at group maturity. Between March 2022 and November 2023, a total of 1,310 specimens were collected from the central region of the West Sea. The gonadal somatic index of the specimens was found to peak in June. Analysis of the gonad tissue and the frequency of appearance of ovigerous crabs indicated that the main spawning period occurs from June to August. Additionally, monthly egg diameter measurements revealed that Asian paddle crabs spawn multiple times annually. Given the current decline in the catches of sea crabs in the West Sea of Korea, we recommend continuous monitoring of the maturity and spawning of crabs in this marine environment.
Abstract
The Asian Paddle Crab Charybdis japonica is an economically important species of crustacean inhabiting the waters of the West Sea of Korea. This study investigated the gonadal development of C. japonica and size at group maturity. Between March 2022 and November 2023, a total of 1,310 specimens were collected from the central region of the West Sea. The gonadal somatic index of the specimens was found to peak in June. Analysis of the gonad tissue and the frequency of appearance of ovigerous crabs indicated that the main spawning period occurs from June to August. Additionally, monthly egg diameter measurements revealed that Asian paddle crabs spawn multiple times annually. Given the current decline in the catches of sea crabs in the West Sea of Korea, we recommend continuous monitoring of the maturity and spawning of crabs in this marine environment.
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