کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10223820 1701058 2018 24 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Phenotypic changes in the body of black seabream, Spondyliosoma cantharus (Teleostei: Sparidae), along the eastern Atlantic
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات زمین شناسی
پیش نمایش صفحه اول مقاله
Phenotypic changes in the body of black seabream, Spondyliosoma cantharus (Teleostei: Sparidae), along the eastern Atlantic
چکیده انگلیسی
Knowledge of population spatial structure is essential in fisheries management. The study of morphological variation patterns in fishes can indicate differences in growth and maturation rates, and thus provide information on group dynamics that should be modelled and managed separately. Identification of intraspecific groups which have different life history features is necessary for understanding population dynamics and achieving a sustainable harvest. The black seabream, Spondyliosoma cantharus, has an extensive distribution along the eastern Atlantic Ocean and is an important commercial fish, exploited in European waters by recreational and commercial fishers. In this paper, body geometric morphometrics was used in order to discriminate among black seabream geographical populations caught in seven different geographical areas. The results showed the existence of intraspecific groups of black seabream across the eastern Atlantic Ocean, with Canary and Angola having clear distinct morphotypes and at least four populations in the European Coast (English Channel, Galicia, Peniche and Algarve) that present stable body shape differences. These populations should be considered to be separate and studies on life history parameters should be enhanced and updated.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Estuarine, Coastal and Shelf Science - Volume 214, 15 December 2018, Pages 31-37
نویسندگان
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