Feeding of European Pilchard, Sardina pilchardus  (Walbaum, 1792) in Derna Coast, Eastern Libya

عزالنصر عاشور أبزيو

doi:10.59743/jmset.v6i1.46

المؤلفون

عزالنصر عاشور أبزيو قسم الغابات والمراعي، كلية الموارد الطبيعية وعلوم البيئة، جامعة عمر المختار، درنة، ليبيا.

DOI:

https://doi.org/10.59743/jmset.v6i1.46

الكلمات المفتاحية:

الساحل الشرقي الليبي، تغذية، البحر الأبيض المتوسط، السردين Sardina pilchardus، ساحل درنة، ليبيا

الملخص

تم دراسة 700 عينة أسماك من أسماك السردين بولشارد Sardina pilchardus تم تجميعها خلال الفترة من أغسطس 2017 وحتى يوليو 2018م من ساحل درنة شرق ليبيا المطلة على البحر المتوسط، وكان للسمكة قائمة غذائية كبيرة تتكون من مجدافيات الأقدام (37.9%)، والكلادوسيرا (22.0%)، والدياتومات (5.2%)، وثنائيات الأسواط (14.1%)، ويرقات الديدان عديدة الأشواك (17.0%)، وبيوض القشريات (3.9%)، وهناك علاقة بين أحجام السمكة والعناصر الغذائية، فقد وجد أن احتياج السمكة من مجدافيات الأقدام والكلادوسيرا وبيوض القشريات ويرقات الديدان عديدة الأشواك يتزايد بزيادة طول السمكة والعكس صحيح تمامًا لثنائيات الأسواط والدياتومات، ولوحظ من الدراسة أن السمكة شديدة الاغتذاء في فصول الخريف والربيع والصيف.

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