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Register a new userContribution to studies Fecundity of Portunus pelagicus (Linnaeus,1758) and Some Biological Characteristics in Lattakia Coast
مساهمة في دراسة خصوبة السرطان الأزرق Portunus pelagicus (Linnaeus,1758) و بعض صفاته الحيوية في شاطئ اللاذقية
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Tishreen University ورقة بحثية
Publication date
2013
fields
Biology
and research's language is
العربية
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Shamra Editor
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تناول هذا البحث لأول مرة دراسة الخصوبة عند النوع Portunus pelagicus السرطان الأزرق في مياهنا الإقليمية كمقدمة لتربيته و استزراعه. نفذت هذه الدراسة في الفترة الممتدة من أيلول 2011 حتى كانون الثاني 2013 , في المناطق الثلاث التالية من شاطئ اللاذقية: منطقة ابن هانئ, منطقة مرفأ الصيد و النزهة و منطقة الكورنيش الجنوبي. جمعت العينات بمعدل مرتين شهرياً من المنطقة الشاطئية Littoral و المنطقة تحت الشاطئية Sublittoral و من عمق 8-18 m . بلغ عدد الإناث الناضجة 240 أنثى تراوح عرض درقاتها 5.2-13, 8 cm و طول درقاتها 4.6-7.9cm و أوزان أجسامها 49.2-171.45 g . أظهرت نتائج هذه الدراسة ما يأتي: تحدث الإباضة خلال الفترة الممتدة من أيار حتى كانون الأول و بمعدل أعلى في شهر تشرين الأول. تراوحت الخصوبة المطلقة عند الإناث بين 21435-143510 بيضة, و الخصوبة النسبية بين 1924-766651 بيضة/غ , و تراوحت أقطار البيوض 0.25-0.45mm .
This research deels for the first time the studying fecundity of species blue crab Portunus pelagicus in our regional waters which as an introduction to breeding and culture. This research carried out in the period from September 2011 until January 2013. At the following three region of Lattakia coast : Fishing bort and picnic area, Ibn Hanni area and Southern Corniche area.Biomonthly samples were collected from Littoral and Sublittoral area of 8-18m deeps. Studies results revealed as the following: The number of mature females 240 female, Ranged: carapace length 4.6-7.9cm Carapace width between 5.2-13.8cm and body weight between 49.2-171.45 g . Spawning takes plase during the period from May until December and the rate of the highest in the month of October. Absolute fecundity in females of this species was ranged between 21435-143510 eggs, and relative fecundity was ranged between 1924-766651 eggs/g, and the eggs diameters ranged between 0.25-0.45 mm.
References used
ABDEL RAZEK F; EL.SHERIEF, S; AND MUHAMAD, E.G. Some Biological Studies Of Parapenaeus longirostris (Lucas,1846)(Crustacea,Decapoda) In The Mediterranean Coast Of Egypt.Egyptian journal of aquatic research .VOL.32 NO,2006,385-400
ARSHAD.A;FRIZAL.E;KAMARUI.M.S and SAAD.C.R. Study on Fecundity, Embrygologu and Larval Development of Blue swimming crab Portunus pelagicus (Linnaeus,1758) under Laboratory Condition .Research Journal of fisheries and Hydrobiology,2006,35-44
BAGINAL.T.B.Fish fecundity and it's relations with stock and recruitment. Ices Rapp. Proc-verb,1973:164:186-198
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