REPRODUCTIVE BIOLOGY OF THE KURUMA SHRIMP MARSUPENAEUS JAPONOCUS ON THE WESTERN MEDITERRANEAN EGYPTIAN COAST

Document Type : Original Article

Authors

1 Biology Department, Faculty of education, Omar Al-Mukhtar University, koba branch, Libya.

2 National Institute of Oceanography and Fisheries, Egypt

3 Marine Science Department, Faculty of Science, Suez Canal University, Ismailia

Abstract

The reproductive biology of 3418 specimens of Kuruma shrimp Marsupenaeus japonocus collected from catches on the western Mediterranean Egyptian coast (Alexandria Port) was studied. There were monthly variation in sex ratio between males (1553 shrimp = 45.4%) and females (1865shrimp =54.6%). Overall sex ratio was 1: 1.20 for males to females respectively. The length at 50% maturity was 5.4cm carapace length for males and 6cm carapace length for females. The breeding season extends from April to September for males and May to October for females.

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