Reproductive Biology of Arabian Pandora, Pagellus Affinis (Boulenger, 1888) from Hadhramout Coast, Gulf of Aden
Keywords:
biological aspects, spawning behaviors, Pagellus AffinisAbstract
Two hundreds and fifty eight fish of P. affinis samples were randomly collected from Hadhramout coast, Gulf of
Aden during period of March 2012 until April 2013. Generally, the best growth performance of P. affinis was
occurred from May to September related to available nourishment, upwelled bottom nutrient. Length-weight
relationship was 2.83 appeared the isometric growth during whole year. Sex ratio was revealed 1:1, males to females
in whole year. The gonado somatic index values were above 3%, showing that spawning could be placed in June to
September in a year at length 20.2 cm to 22.8 cm, with a peak of activity spawning in September. The highest
percentage of absolute fecundity was 35% in June followed by 25% in both August and July, whereas the lowest
percentage was 15% in September. Also, condition factor give the impression the sexual maturity from July to
November at 19 cm to at 21.1 cm length.