African Journal of
Biotechnology

  • Abbreviation: Afr. J. Biotechnol.
  • Language: English
  • ISSN: 1684-5315
  • DOI: 10.5897/AJB
  • Start Year: 2002
  • Published Articles: 12400

Full Length Research Paper

Population dynamics of Caspian spirlin (Actinopterygii: Cyprinidae) in the Kesselian Stream, Iran

Mahvash Seifali1*, Aziz Arshad2, S. M. Nurul Amin2, Bahram Hasanzadeh Kiabi3, Hamid Reza Esmaeili4 and Faezeh Yazdani Moghaddam5
  1Department of Biology, Faculty of Science, University Alzahra, Tehran, Iran. 2Department of Agriculture, Faculty of Agriculture, Universiti Putra Malaysia, Selangor, Malaysia. 3Department of Marine Biology, Faculty of Biological Science, University Shahid Beheshti, Tehran, Iran. 4Department of Biology, Faculty of Science, University Shirz, Shiraz, Iran. 5Department of Biology, Faculty of Science, Ferdowsi University of Mashhad, Iran.
Email: [email protected], [email protected]

  •  Accepted: 12 April 2012
  •  Published: 10 May 2012

Abstract

 

Studies on age, growth, mortality and recruitment of Alburnoides sp. were conducted in Kesselian Stream, South Caspian Sea, Iran from July 2008 to June 2009. Length frequency data were analyzed by using FISAT (FAO-ICLARM Stock Assessment Tools) software for estimating population parameters. Asymptotic length (L∞) and growth coefficient (K) were estimated at 104.48 mm and 1.19/year. Growth performance index (Ø') was calculated as 4.113. Total mortality (Z) was estimated at 3.40/year, whereas fishing mortality (F) and natural mortality (M) were found to be 2.43/year and 0.97/year, respectively. Annual mean temperature and salinity was 12.46°C and 0.32 ppt in the investigated area. The present exploitation rate (E = 0.71) indicated that the fish stock of Alburnoides sp. is over exploited in the Kesselian Stream.

 

Key words: Iran, Alburnoides sp., growth, mortality, stock.

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