Population Dynamic and Stock Assesment of White Seabream Diplodus sargus (Linnaeus, 1758) in the Coast of North Siani
- *Corresponding Author:
- Ahmed M Al-Beak
General Authority for Fish Resources Development (GAFRD), Egypt
Tel: +20 2 22603934
E-mail: [email protected]
Received Date: August 15, 2015; Accepted Date: December 04, 2015; Published Date: December 16, 2015
Citation: Al-Beak AM, Ghoneim, SI, El-Dakar AY, Salem M (2015) Population Dynamic and Stock Assesment of White Seabream Diplodus sargus (Linnaeus, 1758) in the Coast of North Siani. Fish Aquac J 6:152. doi:10.4172/2150-3508.1000152
Copyright: © 2015 Al-Beak AM, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
In the present study fisheries, population dynamic and stock assessment of Diplodus sargus in the coast of North Siani (Eastern Mediterranean, Egypt) studied. Length weight relationship, catch length structure, length scale relationship, total length by the end of each year of life, growth in weight, Von Bertalanffy parameters, the values of (total, natural and fishing mortalities), survival rates, Approximate maximum length with the highest biomass of D. sargus and approximate maximum age tmax. Also Cohort analysis (VPA, age based) which represent the estimated values of the population numbers, survivors, natural and fishing mortalities for each year of life of D. sargus were studied.