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Growth

2005

Articles 1 - 2 of 2

Full-Text Articles in Zoology

Age, Growth And Reproduction Of The Goldband Goatfish, Upeneus Moluccensis (Bleeker, 1855), In İskenderun Bay, The Eastern Mediterranean, Ali̇ İşmen Jan 2005

Age, Growth And Reproduction Of The Goldband Goatfish, Upeneus Moluccensis (Bleeker, 1855), In İskenderun Bay, The Eastern Mediterranean, Ali̇ İşmen

Turkish Journal of Zoology

The age composition, growth parameters, spawning season, sex ratio, length at first sexual maturity and fecundity of the goldband goatfish (Upeneus moluccensis) caught in İskenderun Bay in the eastern Mediterranean Sea were investigated. Females and males made up 51.6% and 48.4%, respectively, of the particular population of the species. The total length of females ranged from 7.0 cm to 20.5 cm, and of males from 7.0 cm to 17.8 cm. The length (L) - weight (W) relationships for males and females were estimated as W = 0.0118*L^{2.99} and W = 0.0097*L^{3.00}, respectively. The age data derived from otolith readings were …


Some Biological Aspects Of The Himri Barbel, Barbus Luteus, In The Intermediate Reaches Of The Euphrates River, Ramez Al Hazzaa Jan 2005

Some Biological Aspects Of The Himri Barbel, Barbus Luteus, In The Intermediate Reaches Of The Euphrates River, Ramez Al Hazzaa

Turkish Journal of Zoology

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 L_t = 54.71 (1-e^{0.110 (t+0.163)}), W_t = 1252.833 (1-e^{0.127 (t+1.825)})^{2.454} in males, and L_t = 56.93 (1-e^{0.105 (t+0.377)}), W_t = 1395.363 (1-e^{0.107 (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 …