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Analyse descriptive de la pêcherie du golfe de Tunis

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Author
Ben Abdallah, L.
El Abed., A.
Zarrad., R.
Missaoui., H.
Gharbi., H.
Date
2000

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Alternative Title
Describes the trawling survey in the Tunis gulf
دراسة ومتابعة موسم صيد الكركارة القاعية في خليج تونس
Abstract
Ce travail décrit les résultats de la campagne de pêche benthique dans le golfe de Tunis. Durant la campagne de 1999, les ressources benthiques du golfe sont exploitées par 45 chalutiers. Ces unités ont enregistré une production de 590 tonnes qui est voisine à celle de deux années précédentes. Les débarquements sont constitués essentiellement de merlu Merluccius merluccius , rouget blanc Mullus barbatus, saurel Trachurus sp., chevrette Parapenaeus longirostris, pageot Pagellus sp. et spicarel Spicara sp. Le chalutage expérimental dans le golfe a donné un rendement horaire de 45Kg et un pourcentage de rejet évalué à 16%. L'étude des structures démographiques des principales espèces montre que l'exploitation dans le golfe s'effectue sur des groupes d'âge égaux ou supérieurs à 1 an.
This paper describes the trawling survey in the Tunis gulf. During the survey of 1999, the gulf is exploited by 45 trawlers. Those units have recorded a production of 590 tons that is close to those of two next years. Landings are constituted essentially of hake, red mulet, horse mackerel, deep-water pink shrimp, commun pandora and picarel. The experimental trawling in the gulf has given a hourly output of 45 Kg and a proportion of discards was evaluated at 16%. The demographic structure study of the main species shows that the exploitation in the gulf undertakes on age groups equal or superior at 1 year.
في هذه الدراسة تمت متابعة موسم صيد الكركارة القاعية في خليج تونس. خلال موسم 1999 كان عدد وحدات الصيد بالجر العاملة 45 وحدة، سجلت هذه الوحدات منتوج قدر ب 590 طنا وذلك دون تغيير كبير بالنسبة للموسمين الفارطين. هذا المنتوج يتكون أساسا من : النزلي، التريلياء البيضاء، الشورو، الشوفرات، المرجان و السبيكري. كما تم القيام برحلة استكشافية أبرزت أن معدل المردود في الساعة بلغ 45 كغ وان نسبة الأسماك التي ترمى في البحر قدرت ب 16 % وان الاستغلال بالنسبة لأهم الأنواع يقع على اسماك سنها يساوي أو يفوق السنة.
Journal
Bulletin de l'Institut National des Sciences et Technologies de la Mer (INSTM°
Volume
27
URI
http://hdl.handle.net/1834/4297
Collections
Articles - Bulletin de l'INSTM

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