- Turkish Journal of Zoology
- Vol: 29 Issue: 4
- Some Biological Aspects of the Himri Barbel, Barbus luteus, in the Intermediate Reaches of the Euphr...
Some Biological Aspects of the Himri Barbel, Barbus luteus, in the Intermediate Reaches of the Euphrates River
Authors : Ramez Al Hazzaa
Pages : 311-315
View : 6 | Download : 2
Publication Date : 9999-12-31
Article Type : Makaleler
Abstract :Growth; length-weight, standard-, fork-, and total length relationships; age composition; sex ratios; age at first maturity; and fecundity of the himri, Barbus luteus, from different sites along the middle reaches of the Euphrates River were investigated. Von Bertalanffy's growth models were Lt = 54.71 (1-e0.110 (t+0.163)), Wt = 1252.833 (1-e0.127 (t+1.825))2.454 in males, and Lt = 56.93 (1-e0.105 (t+0.377)), Wt = 1395.363 (1-e0.107 (t-1.81))2.545 in females. Isometric growth was identified from length-weight relationships. Younger age groups dominated the catches, with identifiable ages ranged from II to VII years. Sexual ratios were unbiased and did not deviate from 1:1. Most fish reached sexual maturity within the second year of age.Keywords : Barbus luteus, growth, fecundity, Euphrates River