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Size and growth variation at maturity of two common squid species in the South China Sea

Author

Listed:
  • RASHEDUL ISLAM

    (Prince of Songkla University)

  • SIRIPORN PRADIT

    (Prince of Songkla University)

  • SUKREE HAJISAMAE

    (Prince of Songkla University)

  • PERMSAK PERNGMAK

    (Southern Marine Fisheries and Development Centre)

  • HISAM FAZRUL

    (University Malaysia Terengganu)

Abstract

This study is aimed to observe the variation in size and growth change at maturity stage of both sexes for two common loliginidae squid species; Photololigo chinensis and P. duvaucelii in the lower part of Gulf of Thailand. Males maturity stage-III of both squid species displayed largest range of mantle length 7.9-42.2 cm (mean 24.7±6.9) and 14-24.2 cm (mean 19.7±2.3) for P. chinensis and P. duvaucelii respectively. Similarly, female maturity stage-I were showed largest range of mantle length; 4.6-18.2 cm (mean 10.8±3.4cm) and 4.9-16 cm (mean 12.8±2.9cm) for P. chinensis and P. duvaucelii respectively. Some maturity stage-III was smaller than maturity stage-II for males P. chinensis ; some maturity stage-III females of P. duvaucelii showed smaller size than maturity stage-II. All of three maturity stages of both sexes exhibited negative allometric growth ( b <3) and growth coefficient value “b” inversely related with imposing their new maturity stage. Therefore, this study results can be used to help the fishery managers which can be used for maintain sustainable condition of loliginid resources in the Gulf of Thailand and leading to a greater boost in the economy of Thailand.

Suggested Citation

  • Rashedul Islam & Siriporn Pradit & Sukree Hajisamae & Permsak Perngmak & Hisam Fazrul, 2016. "Size and growth variation at maturity of two common squid species in the South China Sea," Russian Journal of Agricultural and Socio-Economic Sciences, CyberLeninka;Редакция журнала Russian Journal of Agricultural and Socio-Economic Sciences, vol. 55(7), pages 18-24.
    • Handle: RePEc:scn:031261:16967567
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