Sofiane Med el Amine Benghali1&, Salim Mouffok, Ali Kherraz, Zitouni Boutiba
Department of Marine Science and Aquaculture, FSNV-UMAB-Mostaganem, Algeria
Environmental Surveillance Laboratory, Department of Biology, Faculty of natural sciences and life, University Oran, BP 1524 El Menaouar, Algeria
Key words: gonadosomatic index, hepatosomatic index, first maturity, spawning period.
The Great forkbeard, Phycis blennoides (Brünnich, 1768), is a species widely distributed throughout the Mediterranean Sea and although it is of great importance for fishing industry, little is known about its reproductive characteristics. This study provides first data on reproductive characteristics of this species in the south western Mediterranean, important for management and stock assessment. For this purpose a total of 461 individuals ranging from 17.5 to 43.5 cm in total length were collected monthly in a period of one year using trammel nets. Sex ratio of males to females was 1:0.91. The estimated length where 50% of analyzed individuals were sexually mature was 24.73 cm for females. The peak value of gonad somatic index was recorded in September and continued throughout the October, indicating the highest spawning activity when the Kn values are low.
Get the original articles in Source: Volume 4, Number 6, June 2014 – JBES
Published By: International Network for Natural Sciences