Growth, mortality and exploitation ratio of Otolithes ruber (Teleostei: Sciaenidae) in the Khouzestan Province

Growth, mortality and exploitation ratio of Otolithes ruber (Teleostei: Sciaenidae) in the Khouzestan Province

Authors

  • Kazem Darvish Bastami Iranian National Centre of Oceanography (INCO), Tehran, Iran, Iran, Islamic Republic of
  • Majid Shekari University of Marine Science and Technology, Khoramshahr, Iran, Iran, Islamic Republic of
  • Seyed Ahmadreza Hashemi South Aquaculture Research Centre, Ahwaz, Iran, Iran, Islamic Republic of
  • Alireza Khansari University of Marine Science and Technology, Khoramshahr, Iran, Iran, Islamic Republic of
  • Mahmoud Sinaei Research and Science Branch Islamic Azad University, Tehran, Iran, Iran, Islamic Republic of
  • Somayeh Pouralimotlagh Fisheries Faculty, Agricultural Sciences and Natural Resources Gorgan University, Gorgan, Iran, Iran, Islamic Republic of

Abstract

Otolithes ruber (Teleostei: Sciaenidae) is an important species in the Khouzestan province waters, Iran. Catch management of this species in region is required to be known some biological parameters such as growth and mortality. We used commercial fishing data and samples in the Choebdah and Hendijan landing near Abadan port to estimate population dynamic parameters for O. ruber. The population parameters were analyzed using the FAOICLARM stock assessment tool (FiSAT). The growth parameters of von Bertalanffy equation were as, L∞: 69,72 cm, K: 0,53 year-1 and t0 : -0,16 . The estimated value of total mortality, natural mortality and fishing mortality were 2,25 , 0,84 and 1,41 year-1, respectively. Exploitation ratio, E was estimated to be 0,63 year-1 and these high values of E indicated that the Otolithes ruber stock in the region waters is under fishing pressure.

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Published

2009-04-21

Issue

Vol. 1 No. 2 (2009)

Section

Articles

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