Maturity and Length Frequency Distribution of the Indian Squid Loligo duvauceli Caught in the Gulf of Thailand

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Abstract

Samples of the Indian squid Loligo duvauceli, 5,303 males and 6,149 females, were collected by otter boad trawlers and light-luring fishing boats off the west coast of the Gulf of Thailand from 1986-1989. The speciments were classified into five stages of maturity for both sexes. The group maturity curves showed that sizes at 50% maturation approximated 17cm ML for males and 10 cm ML for females. Two substantial recruitments of catchable stock were found in December-March and July-October, based on the appearance of larger sized squids rather than the 50% mature sizes. Assuming that the successive shift observed in the length frequency distributions are expressed by the von Bertalanffy growth equation and the time from birth to recruitment was 4 months, the growth parameters K were estimated at 0.083 month-1 for male squid and 0.095 month-1 for female squid. © 1993, The Japanese Society of Fisheries Science. All rights reserved.

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Supongpan, M., Sinoda, M., & Chotiyaputta, C. (1993). Maturity and Length Frequency Distribution of the Indian Squid Loligo duvauceli Caught in the Gulf of Thailand. NIPPON SUISAN GAKKAISHI, 59(12), 1963–1969. https://doi.org/10.2331/suisan.59.1963

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