Observations on biological properties of the cyprinid fish, Carasobarbus sublimus in the Al-Diwaniya River, Middle Euphrates, Iraq
Journal Title: IOSR Journal of Agriculture and Veterinary Science (IOSR-JAVS) - Year 2019, Vol 12, Issue 1
Abstract
Length frequency distribution, length-weight relationship, age, growth, gonado-somatic index (GSI) and food habit of the cyprinid fish, Carasobarbus sublimus (Coad & Najafpour, 1997) from the Al-Diwaniya River, Middle Euphrates, Iraq were investigated for the first time. Fish were collected by gill nets and electeofishig during July-September 2017. Fish lengths of 20 to 25 cm dominated the population. Total length– weight relationship was found to be W= 0.009L3.153 , growth pattern is isometric (P>0.05). The mean relative condition factor was 0.99. The mean lengths estimated at ages 1 to 4 year were found to be 8.5, 14.6, 18.3 and 21.7 cm respectively. The von Bertalanffy growth equation was Lt = 29.4(1-e -0.331(t+0.039) ). The overall values of GSI for females and males were 9.7 and 1.6%, respectively. C. sublimus was omnivorous fed on algae (31.0%), aquatic insects (29.8%), macrophytes (27.8%) and snails (11.5%).
Authors and Affiliations
Abdul-Razak M. Mohamed, Mohanad O. A. Al- Jubouri
Keywords
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- EP ID EP432705
- DOI 10.9790/2380-1201013844.
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