Some Aspects of the Reproductive Biology of the Pink Ear Emperor Lethrinus Lentjan (Lacepède, 1802) in Red Sea Coast of Yemen

Document Type : Original Article

Authors

1 Marine Biology Department, Faculty of Marine Science and Environment, Hodeidah University, Yemen

2 Marine Science Department, Faculty of Science, Suez Canal University, Ismailia, Egypt

Abstract

Some aspects of the reproductive biology of the Lethrinus lentjan (Lacepède, 1802), in Yemen coastal
water of the Red Sea were studied from April 2003 to March 2004. Five maturity stages were
described for gonad development based on external features. Following the monthly changes of
different maturity stages, as well as gonadosomatic indices the spawninmg season extended from
March to June with a peak in April-May. Sexual maturation in female started at about 170 mm and the
size at which 50% of females mature was determined as 185mm, being completed at 260mm. Sizerelated
discrepancy in female to male sex ratio was observed where females generally predominated in
the smaller sizes and males in the larger sizes.The total fecundity ranged from 80295 for 192 mm TL
female to 837251 for 400 mm female.

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