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
Related Articles
- EP ID EP152897
- DOI 10.15192/PSCP.ASR.2014.4.3.179-184
- Views 117
- Downloads 0
Current Trends Of Indian Tractor Industry: A Criticalreview
India is an agricultural country. Higher productivity and greater output are the two major contributions in farm mechanization of any country. Tractors form an integral part of farm mechanization and have a crucial...
Comparative studies of chemical compositions of two species of Basella
Antioxidants, proximate and mineral elements analyses were conducted on two species of Basella (B.alba and B. rubra), an under-cultivated and underutilized leafy vegetable in Nigeria. The protein, fibre, fat, ash (...
Effects Of Flooding On Amassoma Flood Plain Sediments Niger Delta, Nigeria
The Effects of Flood on Amassoma Flood Plain Sediments Niger Delta, Nigeria was studied for a period of six months (November – December, 2012 and January, 2013 for the dry season and April, May and June; 2013 for t...
First record nanotechnology in agricultural: Silica nano-particles a potential new insecticide for pest control
The cotton leaf warm Spodoptera littoralis is considered the major important pest of plenty of vegetables, for causing severe injuries to the plants in all phonological crop stages, beside its rising resistance to...