Age, growth and reproduction of the gold band goatfish, Upeneus moluccensis off the Elkhoms coast of Libya | ||||
| Delta Journal of Science | ||||
| Article 1, Volume 36, Issue 2, June 2013, Page 1-5 PDF (1.08 MB) | ||||
| Document Type: Research and Reference | ||||
| DOI: 10.21608/djs.2013.139578 | ||||
 View on SCiNiTO | ||||
| Author | ||||
M.A. El-drawany 
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| Department of Zoology, Faculty of science, Zagazig University, Egypt | ||||
| Abstract | ||||
| The age, growth parameters, spawning season, sex ratio, length at first sexual maturity and fecundity of the goldband goatfish, Upeneus moluccensis (Bleeker, 1855) caught in Elkhoms coasts of the Mediterranean Sea were investigated. It was found that, males constitute about 47.7% its population. Length-weight relationship of both sexes was illustrated as: W = 0.01017 L3.01 for males and W = 0.00822 L3.09 for females The age data derived from scale readings were used to estimate the growth parameters of the von Bertalanffy equation and the calculated parameters were: L∞= 233.6 mm, K = 0.2274 and to = -1.872 for males and L∞= 234.4 mm, K =0.2120 and to = -1.983 for females It was found that the maximum age of males and females attained five years only. The second year age group was dominated the population. Otherwise, maturation of males and females occurred at a total length of about 11 cm. The monthly values of the gonado-somatic index indicated that spawning of the studied fish take place mainly between May and July. The fecundity-length relationship designated that the fecundity is highly correlated with the fish length and expressed by the equation: Log F = 0.0268 + 3.8120 Log L (r = 0.995). INTRODUCTION The | ||||
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