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Contribution 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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 Publication date 2013
  fields Biology
and research's language is العربية
 Created by Shamra Editor




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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.


Artificial intelligence review:
Research summary
تتناول هذه الدراسة لأول مرة خصوبة السرطان الأزرق Portunus pelagicus في المياه الإقليمية لشاطئ اللاذقية كخطوة أولى لتربيته واستزراعه. أجريت الدراسة من سبتمبر 2011 حتى يناير 2013 في ثلاث مناطق مختلفة من شاطئ اللاذقية: منطقة ابن هانئ، منطقة مرفأ الصيد والنزهة، ومنطقة الكورنيش الجنوبي. جمعت العينات بمعدل مرتين شهريًا من عمق يتراوح بين 8-18 متر. أظهرت النتائج أن الإباضة تحدث من مايو حتى ديسمبر، مع أعلى معدل في أكتوبر. تراوحت الخصوبة المطلقة بين 21435 و143510 بيضة، بينما تراوحت الخصوبة النسبية بين 1924 و766651 بيضة/غرام. كما أظهرت الدراسة وجود علاقة إيجابية قوية بين الخصوبة وكل من عرض الدرقة وطولها ووزن الجسم. تعتبر هذه الدراسة خطوة مهمة لفهم بيولوجيا السرطان الأزرق وتحديد أفضل الأوقات والمناطق لجمع الإناث الناضجة، مما يسهم في تحسين استزراع هذا النوع وزيادة الإنتاجية الاقتصادية.
Critical review
دراسة نقدية: تعتبر هذه الدراسة خطوة مهمة في مجال دراسة خصوبة السرطان الأزرق Portunus pelagicus في المياه الإقليمية لشاطئ اللاذقية، ولكن هناك بعض النقاط التي يمكن تحسينها. أولاً، كان من الممكن توسيع نطاق الدراسة لتشمل مناطق أخرى من الساحل السوري للحصول على صورة أكثر شمولية. ثانياً، لم تتطرق الدراسة بشكل كافٍ إلى تأثير العوامل البيئية الأخرى مثل التلوث والملوحة على الخصوبة. ثالثاً، كان من الممكن استخدام تقنيات تحليلية أكثر تطورًا للحصول على نتائج أكثر دقة. على الرغم من هذه النقاط، فإن الدراسة تقدم معلومات قيمة يمكن أن تكون أساسًا لأبحاث مستقبلية في هذا المجال.
Questions related to the research
  1. ما هي الفترة الزمنية التي أجريت فيها الدراسة؟

    أجريت الدراسة في الفترة من سبتمبر 2011 حتى يناير 2013.

  2. ما هي أعلى فترة للإباضة عند السرطان الأزرق؟

    أعلى فترة للإباضة كانت في شهر أكتوبر.

  3. ما هو نطاق الخصوبة المطلقة للإناث الناضجة؟

    تراوحت الخصوبة المطلقة بين 21435 و143510 بيضة.

  4. ما هي العلاقة بين الخصوبة وكل من عرض الدرقة وطولها ووزن الجسم؟

    أظهرت الدراسة وجود علاقة إيجابية قوية بين الخصوبة وكل من عرض الدرقة وطولها ووزن الجسم.


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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