Some Biological Aspects of the Himri Barbel, Barbus luteus, in the Intermediate Reaches of the Euphrates River

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.

Anahtar Kelimeler:

Barbus luteus, growth, fecundity, Euphrates River

Some Biological Aspects of the Himri Barbel, Barbus luteus, in the Intermediate Reaches of the Euphrates River

Keywords:

Barbus luteus, growth, fecundity, Euphrates River,

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