Population dynamic parameters of Common carp (Cyprinus carpio) in the Shadegan wetland
Journal Title: Applied Science Reports - Year 2014, Vol 8, Issue 3
Abstract
Population dynamic parameters of common carp (Cyprinus carpio) were estimated from April 2011 to March 2012 in the Shadegan Wetland. 940 specimens were collected from five stations namely Mahshar, Rogbe, Khorosy, Salmane and Ateish in the Shadegan Wetland in Khuzestan province (Iran). Population dynamic parameters were calculated for C. carpio as below, L∞: 537 (mm); K: 0.36 (yr-1); t0: -0.20, Ф’: 3.01. The estimated value of total mortality, natural mortality and fishing mortality were Z: 1.44, M: 0.66, F: 0.78 respectively. Relative yield per recruitment (Y'/R):0.02, relative biomass per recruitment, (B'/R):0.3; Exploitation ratio maximum sustainable yield, Emax: 0.43; precautionary average target (Fopt=0.51 yr-1) and limit (Flimit=0.67 yr-1) biological reference points for this stock was calculated. The results showed exploitation ratio of C. carpio is more than optimum level and no increase in fishing effort should be made in the area.
Authors and Affiliations
Seyed Ahmadreza Hashemi, Rasoul , Farhad kaymaram, Seyed Abass Hossini, Gholareza Eskandari, Aliakbar Hedayati
Keywords
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- EP ID EP152897
- DOI 10.15192/PSCP.ASR.2014.4.3.179-184
- Views 108
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