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Morphological and Histological Study of the Gonads Maturation Stages in the Chub Mackerel Scomber japonicus (Houttuyn, 1782) in the Coastal Water of Latakia

دراسة مراحل نضج المناسل شكلياً و نسيجياً عند سمك السقمبري Scomber japonicus (Houttuyn, 1782) في المياه الشاطئية لمحافظة اللاذقيةa

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 Publication date 2018
  fields Life Science
and research's language is العربية
 Created by Shamra Editor




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This study was carried out on /516/ fish individuals of Chub Mackerel Scomber japonicus (Houttuyn, 1782), which were caught from the Coastal water of Latakia province (Levantine basin) from December 2014 to November 2015, to identify the evolution stages of sexual maturity (by morphological and histological methods) and determine the spawning period of this important economic species. The results showed that Scomber japonicus begin with sexual maturity from the beginning of February and extend until mid-May, with a single peak in Mars. The average value of the gonado-somatic index (GSI) was (12.46 ± 1.52)% for males and (13.21 ± 3.9)% for female in Mars. And the total body length at sexual maturity was (21.5) cm for males, and was (23.5) cm for females. The development stages and gonad maturation in this specie, are similar with regard to the tissue and the form of gonads and according to the six gonad maturation steps.


Artificial intelligence review:
Research summary
تتناول هذه الدراسة مراحل نضج المناسل عند سمك السقمبري Scomber japonicus في المياه الشاطئية لمحافظة اللاذقية. تم جمع 516 عينة من ديسمبر 2014 حتى نوفمبر 2015، وتم تحليلها باستخدام الطرق الشكلية والنسيجية لتحديد مراحل النضج الجنسي وفترة التكاثر. أظهرت النتائج أن السمك يبدأ بالنضج الجنسي من بداية فبراير حتى منتصف مايو، مع ذروة في مارس. كان متوسط معامل النضج الجنسي (GSI) للذكور 12.46% وللإناث 13.21% في مارس. بلغ الطول الكلي عند أول نضج جنسي 21.5 سم للذكور و23.5 سم للإناث. تتوافق مراحل نضج المناسل مع السلم النسجي المكون من ست مراحل.
Critical review
دراسة نقدية: تقدم هذه الدراسة معلومات قيمة حول مراحل نضج المناسل وفترة التكاثر لسمك السقمبري في المياه الشاطئية لمحافظة اللاذقية. ومع ذلك، يمكن تحسين الدراسة من خلال توسيع نطاق العينات لتشمل مناطق جغرافية أخرى في البحر المتوسط للحصول على صورة أكثر شمولية. كما يمكن تعزيز الدراسة بإضافة معلومات حول تأثير العوامل البيئية الأخرى مثل التلوث البحري والصيد الجائر على نضج المناسل وفترة التكاثر. بالإضافة إلى ذلك، يمكن أن تكون الدراسة أكثر فائدة إذا تضمنت توصيات عملية لإدارة مخزون السمك بناءً على النتائج المستخلصة.
Questions related to the research
  1. ما هي الفترة الزمنية التي يبدأ فيها سمك السقمبري بالنضج الجنسي في المياه الشاطئية لمحافظة اللاذقية؟

    يبدأ سمك السقمبري بالنضج الجنسي من بداية شهر فبراير ويمتد حتى منتصف شهر مايو، مع ذروة في شهر مارس.

  2. ما هو متوسط معامل النضج الجنسي (GSI) للذكور والإناث في شهر مارس؟

    كان متوسط معامل النضج الجنسي (GSI) للذكور 12.46% وللإناث 13.21% في شهر مارس.

  3. ما هو الطول الكلي عند أول نضج جنسي للذكور والإناث؟

    بلغ الطول الكلي عند أول نضج جنسي 21.5 سم للذكور و23.5 سم للإناث.

  4. ما هي الطرق المستخدمة في هذه الدراسة لتحديد مراحل نضج المناسل؟

    استخدمت الدراسة الطرق الشكلية والنسيجية لتحديد مراحل نضج المناسل عند سمك السقمبري.


References used
Atli, M. (1960). Further information on the biology of the Scomber colias (Gmelin). Rapp. Et. P.V. des Reunions. 15: 395–407
Baird, D. (1977). Age, growth and aspects of reproduction of mackerel, Scomber japonicus in South African waters (Pisces:Scombridae). Zool. Afr., 12: 347–362
Ben-Tuvia, A. (1957). Pelagic fisheries in Israel. Proc. Gen. Fish. Coun. Médit. 4: 383–391
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