THE REPRODUCTION BIOLOGY OF ABUDEFDUF SEXFASCIATUS IN THE PERSIAN GULF (LARAK ISLAND)

• Main Author: H. Hosseinzadeh; I. Sharifpor; Sh. Nazemi
• Format: Article
• Language: fas
• Published: Iranian Fisheries Research Organization 2001-01-01
• Series: ‬‭Majallah-i ̒Ilmī-i Shīlāt-i Īrān
• Subjects: ABUDEFDUF SEXFASCIATUS; REPRODUCTION BIOLOGY; LARAK ISLAND; Persian Gulf; Iran
• Online Access: http://isfj.areo.ir/article_115617_en.html

The reproduction biology of A. sexfasciatus, one of the main and important ornamental fishes in the Persian Gulfwere studied during 1997-98. For sampling, Larak island sited on south-eastern of Bandar-Abbas was chosen. The main fishing gear was hook for collecting samples. During this investigation, weight, length (FL & T.L), GSI, HSI, Kf, sex ratio, LM50 and sexual overlap zone were measured or calculated. Also, the histological studies were done on gonads. The results showed that this species is a protogenous hermaphrodite. A. sexfasciatus has an allometric growth and the results of GSI, HSI and Kf indicated that the spawning season occured in spring as a total spawner species. The sex ratio was found M:F=1.00:1.24 without any significant difference. The overlap zone was recongnized 30mm (with a range of 125-155mm). The LM50 was calculated 130-140mm for females and 160-170mm for males. The size at first maturity for females and males were determined 105 and 120mm, respectively.