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Age, growth and reproduction of the white seabream Diplodus sargus sargus (Linneaus, 1758) off the eastern coast of Algeria

2012; Wiley; Volume: 29; Issue: 1 Linguagem: Inglês

10.1111/j.1439-0426.2012.02057.x

1439-0426

Wafa Benchalel, Mohamed Hichem Kara,

Fish Ecology and Management Studies

Journal of Applied IchthyologyVolume 29, Issue 1 p. 64-70 Original Article Age, growth and reproduction of the white seabream Diplodus sargus sargus (Linneaus, 1758) off the eastern coast of Algeria W. Benchalel, Corresponding Author W. Benchalel Marine Bioresources Laboratory, University of Annaba – Badji Mokhtar, Annaba, Algéria Author's address: W. Benchalel, Marine Bioresources Laboratory, University of Annaba – Badji Mokhtar, BP 230 Oued Kouba, Annaba 23003, Algéria. E-mail: [email protected]Search for more papers by this authorM. H. Kara, M. H. Kara Marine Bioresources Laboratory, University of Annaba – Badji Mokhtar, Annaba, AlgériaSearch for more papers by this author W. Benchalel, Corresponding Author W. Benchalel Marine Bioresources Laboratory, University of Annaba – Badji Mokhtar, Annaba, Algéria Author's address: W. Benchalel, Marine Bioresources Laboratory, University of Annaba – Badji Mokhtar, BP 230 Oued Kouba, Annaba 23003, Algéria. E-mail: [email protected]Search for more papers by this authorM. H. Kara, M. H. Kara Marine Bioresources Laboratory, University of Annaba – Badji Mokhtar, Annaba, AlgériaSearch for more papers by this author First published: 27 October 2012 https://doi.org/10.1111/j.1439-0426.2012.02057.xCitations: 14Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Summary The objective of this study was to determine the basic population-specific parameters necessary for fish stock assessment in the area and to compare these with data from other Mediterranean regions. White seabream Diplodus sargus sargus (n = 449) were caught along the Algerian coast between December 2005 and December 2006. Total length ranged from 12.2 to 34.6 cm, representing age classes between 0 and 10 years. Validity of the otolith readings for estimating age and growth was supported using the back-calculation method. The von Bertalanffy growth parameters for all fish were calculated as: TL = 36.3 cm, k = 0.154 year−1, t0 = −0.488 year. The growth performance index (φ) showed a relatively slow growth of the local population. The length-weight relationship showed an isometric growth (b = 2.98; r = 0.98). Subspecies Diplodus sargus sargus was characterized as being a proterandric hermaphrodite. Overall ratio of males to females was 1 : 1.4, with males predominant in the smaller size intervals and females in the larger ones. The reproductive season extended from January to May, with a March–April peak in spawning activity. 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Citing Literature Volume29, Issue1February 2013Pages 64-70 ReferencesRelatedInformation