Akademik Veri Yönetim Sistemi
Thalassas, cilt.42, sa.2, 2026 (SCI-Expanded, Scopus)
The reproductive biology of the Lessepsian shrimp Penaeus hathor (Burkenroad, 1959) was investigated in the Gulf of Antalya, Eastern Mediterranean, with the aim of providing baseline biological information relevant to fisheries assessment. A total of 596 individuals (310 males and 286 females) were collected monthly between January and December 2015 using bottom-set trammel nets at depths of 10–50 m. The overall sex ratio did not differ significantly from parity (1.06:1). Mean total length was 12.9 cm in males and 14.6 cm in females, and length–weight relationships indicated positive allometric growth in both sexes. Seasonal variation in the gonadosomatic index revealed an extended reproductive period from April to December, with peak reproductive activity observed during July and August. The size at first sexual maturity (TL₅₀) for females was estimated at 14.6 cm. These results provide essential reproductive parameters that may support stock monitoring and contribute to the development of management measures, such as minimum landing size and seasonal fishing regulations, for emerging penaeid shrimp fisheries in the eastern Mediterranean.