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International Journal of Aquatic Biology، جلد ۹، شماره ۵، صفحات ۲۶۸-۲۷۸
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عنوان انگلیسی Age, Growth and Mortality of Atlantic chub mackerel, Scomber colias Gmelin, 1789 in the Mediterranean Waters of Morocco
چکیده انگلیسی مقاله This work is a study of growth aspects and mortality of the Atlantic chub mackerel, Scomber colia, from the Mediterranean Moroccan coast. A total of 845 specimens were collected from commercial catches in M’diq Bay, whose total length ranged between 16.4 and 35.9 cm. The length-weight relationship was W = 0.0019 TL 3.4527 (r = 0.97) for the whole population. The Atlantic chub mackerel displays positive allometric growth. Otolith edge analysis indicated that opaque zones were formed between April and September and translucent ones during the remaining months of the year. The oldest individuals in the sample were 5 years old for both sexes. Von Bertalanffy growth parameters estimated for this species were: L ∞ = 37.30 cm, k = 0.26 year -1 and t 0 = - 2.19 year. The difference in growth between sexes is not significant. The estimated natural mortality was 0.59 per year.
کلیدواژه‌های انگلیسی مقاله Age, Growth, Mortality, Southwestern Mediterranean Sea.
نویسندگان مقاله | Mohamed Techetach
Environment and Health Team, Department of Biology, Polydisciplinary Faculty of Safi, Cadi Ayyad University, Safi, Morocco.


| Hassnae Kouali
Environment and Health Team, Department of Biology, Polydisciplinary Faculty of Safi, Cadi Ayyad University, Safi, Morocco.


| Hafid Achtak
Environment and Health Team, Department of Biology, Polydisciplinary Faculty of Safi, Cadi Ayyad University, Safi, Morocco.


| Fatima Rafiq
Environment and Health Team, Department of Biology, Polydisciplinary Faculty of Safi, Cadi Ayyad University, Safi, Morocco.


| Ahmed Lemhadri
Environment and Health Team, Department of Biology, Polydisciplinary Faculty of Safi, Cadi Ayyad University, Safi, Morocco.


| Abdallah Dahbi
Applied Biology and Pathology Laboratory, Department of Biology, Faculty of Sciences, Abdelmalek Essaadi University, Tetouan, Morocco.


| Rabia Ajana
Applied Biology and Pathology Laboratory, Department of Biology, Faculty of Sciences, Abdelmalek Essaadi University, Tetouan, Morocco.


| Younes Saoud


نشانی اینترنتی http://ij-aquaticbiology.com/index.php/ijab/article/view/1033
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کد مقاله (doi) 10.22034/ijab.v9i5.1033
زبان مقاله منتشر شده en
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