SABIIA - Sistema Aberto e Integrado de Informação em Agricultura (Sabiia)

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OceanDocs (5)

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	Gaamour, A. (5)
	Khemiri, S. (5)
	Ben Abdallah, L. (2)
	Mili, S. (2)

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Journal Contribution (5)

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	2009 (2)
	2005 (1)
	2004 (2)

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Belgium (5)

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	Francês (3)
	Espanhol (1)
	Inglês (1)

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Relation taille–masse, condition relative et cycle sexuel des anchois et des sardines des côtesTunisiennes

OceanDocs

Khemiri, S.; Gaamour, A..

La biologie reproductive, la relation taille-masse ainsi que la condition relative de l’anchois Engraulis encrasicolus et de la sardine Sardina pilchardus ont été étudiées le long des régions Nord, Golfe de Tunis, la région Est et la région Sud des côtes tunisiennes durant la période 2000-2002. Pour l’anchois et la sardine, la sex-ratio globale pour toutes les côtes tunisiennes est voisine de 1,0. L’acquisition de la taille de première maturité sexuelle semble être influencée par la température de l’eau dans les quatre régions. Les périodes de reproduction ont lieu dans les quatre régions d’avril à octobre pour l’anchois et d’octobre à mars pour la sardine. Dans les eaux tunisiennes, l’anchois et la sardine ont une allométrie majorante et une condition...

Tipo: Journal Contribution

Palavras-chave: Allometry; Condition factor; Length-weight relationships; Marine fish; Sex ratio; Sexual maturity; Sexual reproduction; Spawning seasons; Marine fishes.

Ano: 2009

URL: http://hdl.handle.net/1834/4487

Relation taille –masse, condition relative et cycle sexuel des anchois et des sardines des cotes Tunisiennes

OceanDocs

Khemiri, S.; Gaamour, A..

Tipo: Journal Contribution

Ano: 2009

URL: http://hdl.handle.net/1834/3761

L'anchois ( engraulis encrasicolus) des cotes nord de la Tunisie : reproduction et exploitation

OceanDocs

Gaamour, A.; Khemiri, S.; Mili, S.; Ben Abdallah, L..

The reproduction parameters necessary for stock management and catch analysis of anchovy in the North region of Tunisia were studied. The global sex-ratio is close to 1, special caution should be taken using this parameter as it is size dependant. Mean reproduction period extends from April to October. However within this period individuals of population have different spawning and maturation. The size at first sexual maturity Lm50 is about 7.3cm. In the North region of Tunisia, the anchovy landings are lower than the exploitable biomass, therefore the anchovy is an under-exploitable species in this region

Tipo: Journal Contribution

Palavras-chave: Engraulis encrasicolus; Clupeoid fisheries; Catching methods; Fishery management; Reproduction; Sex ratio; Sexual maturity; Spawning; Stock assessment; Fishery management; Spawning; Stock assessment; Reproduction; Sex ratio; Sexual maturity; Http://aims.fao.org/aos/agrovoc/c_24026; Http://aims.fao.org/aos/agrovoc/c_14490; Http://aims.fao.org/aos/agrovoc/c_24251; Http://aims.fao.org/aos/agrovoc/c_6507; Http://aims.fao.org/aos/agrovoc/c_7014; Http://aims.fao.org/aos/agrovoc/c_7016.

Ano: 2004

URL: http://hdl.handle.net/1834/4236

Preliminary study of age, growth and birthdates of juvenile sardine <Sardina pilchardus> (Walbaum, 1792) and European anchovy Engraulis encrasicolus (Linnaeus, 1758) in the east coast of Tunisia

OceanDocs

Khemiri, S.; Gaamour, A..

The microstructures of the otoliths of juvenile sardines (Sardina pilchardus) and anchovies (Engraulis encrasicolus), collected in the East coast of Tunisia, were analyzed in order to estimate age, daily growth and hatch date. The fork length of sardines varied from 48 to 103 mm and estimated age ranged from 105 to 297 days. For the anchovies, the estimated age ranged from 79 to 300 days and the fork length from 42 to 86 mm. The length-age data of both species were fitted to the laird-Gompertz model. The corresponding growth equations were [lt=10.8 exp(2.74(1-exp(-0.006t)))] for sardines and [lt=3.1 exp(3.2(1-exp(-0.02t)))] for anchovies. The instantaneous growth rates of the juvenile of both species in the East of Tunisia were in agreement with the data...

Tipo: Journal Contribution

Palavras-chave: Age determination; Daily; Growth; Hatching; Microstructure; Otoliths; Population structure; Age determination; Growth; Otoliths; Population structure; Hatching; Http://aims.fao.org/aos/agrovoc/c_24110; Http://aims.fao.org/aos/agrovoc/c_3394; Http://aims.fao.org/aos/agrovoc/c_27091; Http://aims.fao.org/aos/agrovoc/c_6115; Http://aims.fao.org/aos/agrovoc/c_3504.

Ano: 2005

URL: http://hdl.handle.net/1834/3797

L'anchois <Engraulis encrasicolus> des côtes nord de la Tunisie: reproduction et exploitation.

OceanDocs

Khemiri, S.; Gaamour, A.; Mili, S.; Ben Abdallah, L..

التكاثر والاستغلال - يهتم هذا العمل بدراسة معطيات التكاثر، الضرورية لحسن التصرف في المخزون، وبتحليل إنتاج الصيد البحري لسمك الأنشوة بالسواحل الشمالية لتونس. بالنسبة لجملة العينات يتساوى عدد الإناث والذكور مع العلم أن نسبة كل جنس تتغير حسب طول السمكة. يتكاثر سمك الأنشوة خلال الفترة الممتدة من أفريل إلى أكتوبر مع وجود اختلال بين الأفراد. يبلغ سمك الأنشوة نضجه الجنسي الأول لطول يناهز 7.3 صم. يفوق المخزون المتاح استغلاله من سمك الأنشوة الكميات المنزلة بمواني الصيد البحري، تبعا لذلك فإن سمك الأنشوة بالشمال التونسي دون الاستغلال الأمثل.

Tipo: Journal Contribution

Palavras-chave: Catch statistics; Reproduction; Sex ratio; Sexual maturity; Reproduction; Sex ratio; Sexual maturity; Http://aims.fao.org/aos/agrovoc/c_6507; Http://aims.fao.org/aos/agrovoc/c_7014; Http://aims.fao.org/aos/agrovoc/c_7016.

Ano: 2004

URL: http://hdl.handle.net/1834/1154

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Empresa Brasileira de Pesquisa Agropecuária - Embrapa Todos os direitos reservados, conforme Lei n° 9.610 Política de Privacidade Área restrita		Embrapa Parque Estação Biológica - PqEB s/n° Brasília, DF - Brasil - CEP 70770-901 Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco