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Age and growth of the flathead grey mullet (Mugil cephalus) in the coastal water of Yeosu

여수 연안 숭어 (Mugil cephalus)의 연령과 성장 연구

  • Zhang, Chang-Ik (Division of Marine Production System Management, Pukyong National University) ;
  • Park, Hee-Won (Division of Marine Production System Management, Pukyong National University) ;
  • Kwon, Hyeok-Chan (Division of Marine Production System Management, Pukyong National University)
  • 장창익 (부경대학교 해양생산시스템관리학부) ;
  • 박희원 (부경대학교 해양생산시스템관리학부) ;
  • 권혁찬 (부경대학교 해양생산시스템관리학부)
  • Received : 2011.05.17
  • Accepted : 2011.08.13
  • Published : 2011.08.31

Abstract

The age and growth of flathead grey mullet, Mugil cephalus, were studied using samples collected from the coastal water of Yeosu from September 2009 to August 2010. Spawning season estimated from the gonadosometic index (GSI) was from November to January. A method for increasing the readability of the otolith was described and criteria for the interpretation of otolith was provided. The annual ring was formed in September once a year. Annual ring in otolith for flathead grey mullet is validated for fish aged 1-8 using the marginal increment analysis. Using the sectioned otolith, between reader precision was 84%. Also, Within-reader agreement for sectioned otolith age readings was higher (reader 1=84%, reader 2=87%). The relationship between fork length and total weight was TW=$0.022FL^{2.818}$. The estimated von Bertalanffy growth parameters for the flathead grey mullet were $L_{\infty}$=67.97cm K=0.164/year and $t_o$=-0.81year.

Acknowledgement

Supported by : 부경대학교

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Cited by

  1. Stock assessment and Diagnosis of Flatted grey mullet, Mugil cephalus,in the coastal water of Yeosu vol.51, pp.3, 2015, https://doi.org/10.3796/KSFT.2015.51.3.448