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العنوان
population dynamics and fisheries management of the commercial species of family soleidae off alexandria coast, mediterranean sea /
المؤلف
aid, noha mohamed aid.
هيئة الاعداد
باحث / نهي محمد عيد عيد
مشرف / سحر فهمي مهنا
مشرف / فهمي إبراهيم الجمال
مشرف / محمد أبو الرجال
مناقش / صبري صادق الصيرفي
مناقش / مجدي توفيق خليل
الموضوع
fisheries management. population dynamics. commercial species of family soleidae.
تاريخ النشر
2016.
عدد الصفحات
120, 4 paged. :
اللغة
الإنجليزية
الدرجة
ماجستير
التخصص
علم المحيطات
تاريخ الإجازة
1/3/2015
مكان الإجازة
جامعة بورسعيد - كلية العلوم ببورسعيد - marine science
الفهرس
Only 14 pages are availabe for public view

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Abstract

Weight–length (W–L) relationships were estimated for 46 species of fish captured off the western Portuguese coast between April 1994 and September 1995. The best-represented family was Scyliorhinidae (2677 fishes), followed by Gadidae (1871), Sparidae (1682) and Merlucciidae (1108). The estimates for the parameter b of the W–L relationship (W = aLb) ranged between 2.171 and 3.873, with a median of 3.124. Significant variations in b were found at seasonal level for striped red mullet (Mullus surmuletus), axillary seabream (Pagellus acarne), greater weever (Trachinus draco) and the sardine (Sardina pilchardus), at the regional level for Atlantic mackerel (Scomber scombrus), and between sexes for the small-spotted dogfish (Scyliorhinus canicula).