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Paper Information

Journal:   IRANIAN SCIENTIFIC FISHERIES JOURNAL   FALL 2011 , Volume 20 , Number 3; Page(s) 155 To 166.
 
Paper: 

POPULATION DYNAMICS OF BARB US GRYPUS (HECKEL, 1843) AND BARBUS BARBULUS (HECKEL, 1847) IN KAROON RIVER, SOUTH-WEST IRAN

 
 
Author(s):  HASHEMI S.A.R.*, MORTAZAVI S.A.
 
* SOUTH AQUACULTURE RESEARCH CENTER, AHWAZ, IRAN
 
Abstract: 
Barbus sp. fish samples were collected during November 2007 to October 2008 from five landing stations in Karoon River: Gotvand, Shoshtar, Molasani, Ahwaz, and Darkhoin.
During one year of study, more than 2000 specimens of B. grypus and B. barbulus were measured, mean
±SD length values and maximum and minimum total length for this species were 37.94±8.18, 43.62±10.27, 20-76cm and 20-94cm, respectively. Mean±SD of weight values and maximum and minimum weight for this species were 873.2±1092.45g, 778.59±725.97g, 52-11170g and 52-4675g, respectively. Growth and mortality parameters were calculated forB. grypus and B. barbulus as Loo: 86.64, 132.9 and K: 0.27, 0.17 and t0 0.46, -0.66, M: 0.50, 0.33, F: 1.22, 1.04, Z: 1.72, 2.72, F; 3.31, 3.48, E: 0.71, 0.76, respectively. According to the exploitation coefficient, B. grypus and B. barbulus stocks are overfished; hence we suggest a decrease in exploitation coefficient. Based on results and their comparison with the American Fisheries Society (AFS) indices, these species are classified in moderate to high vulnerable group fishes.
 
Keyword(s): FISH STOCKS, BIOMETERY, POPULATION DYNAMIC, KAROON RIVER
 
References: 
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