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Reproductive parameters of Atlantic chub mackerel Scomber colias in M'diq Bay, Morocco

Published online by Cambridge University Press:  05 November 2018

Mohamed Techetach ,
Rabia Ajana  and
Younes Saoud
Mohamed Techetach*
Affiliation:
Applied Biology and Pathology Laboratory, Department of Biology, Faculty of Sciences, Abdelmalek Essaadi University, 93002, Tetouan, Morocco
Rabia Ajana
Affiliation:
Applied Biology and Pathology Laboratory, Department of Biology, Faculty of Sciences, Abdelmalek Essaadi University, 93002, Tetouan, Morocco
Younes Saoud
Affiliation:
Applied Biology and Pathology Laboratory, Department of Biology, Faculty of Sciences, Abdelmalek Essaadi University, 93002, Tetouan, Morocco
*
Author for correspondence: Mohamed Techetach, E-mail: [email protected]
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Abstract

Reproductive biology of Atlantic chub mackerel (Scomber colias) was studied based on samples from commercial catches in M'diq Bay, Morocco. Females predominated in the total catch (54%), their size at first maturity being 19.19 ± 0.43 cm TL. A minimum landing size (MLS) of 21 cm is suggested. The oocyte size frequency distribution and histological analysis confirmed that S. colias is a species with an indeterminate fecundity. The batch fecundity was estimated as 18,452–131,642, with a mean of 60,022 oocytes. The relative batch fecundity was 157–360, with a mean of 279 eggs g−1.

Keywords

Fecunditylength at first maturityM'diq Bayreproductive strategyScomber colias
Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 99 , Issue 4 , June 2019 , pp. 957 - 962
Copyright
Copyright © Marine Biological Association of the United Kingdom 2018 

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