Reproductive biology and growth of greater forkbeard Phycis blennoides (Brünnich, 1768) in Western Algerian Coasts (Osteichthyes, Gadidae) – JBES

PhycisSofiane 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.

Abstract

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. Phycis blennoidesFor 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.

jbes-vol4no6-p389-398Get the original articles in Source: Volume 4, Number 6, June 2014 – JBES

Journal Name: Journal of Biodiversity and Environmental Sciences (JBES)

Published By: International Network for Natural Sciences

Related Post: The effect of plant density on quantitative characteristics, optical extinction coefficient, and some physiological traits of faba bean cultivars – JBES

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