Data/hora: 09/06/2024 05:42:35

Provedor de dados: 	20	
País: 	Belgium	
Título: 	Evaluation et cartographie des stocks de coquillages dans la partie marine de la région de Zarzis

Stocks assessment of shelfishes and cartography of their geographical distribution in the coastal area of Zarzis

تقييم مخزون القوقعيات ووضع خرائط توزيعه الجغرافي بمنطقة  جرجيس الساحليّة	
Autores: 	Ben Abdallah, O.; Ben Hadj Hamida, N.; Jarboui, O.	
Data: 	2012-05-27	
Ano: 	2006	
Palavras-chave: 	Biomass; Cartography; Geographical distribution; Marine crustaceans; Shellfish; Stock assessment; Biomass; Geographical distribution; Shellfish; Stock assessment; Cartography; Http://aims.fao.org/aos/agrovoc/c_926; Http://aims.fao.org/aos/agrovoc/c_5083; Http://aims.fao.org/aos/agrovoc/c_7033; Http://aims.fao.org/aos/agrovoc/c_24251; Http://aims.fao.org/aos/agrovoc/c_1344.	
Resumo: 	The experimental survey done, in august 2005, in coastal marine zone (0 - 20 m) of Zarzis showed the existence of numerous species of shellfishes of which Tricolia speciosa, Smaragdia viridis, Nassarius incrassatus, Cerithium vulgatum and Gibbulla umbilicaris are the most important gasteropods and, Pinctada radiate and Donax trunculus the main bivalves. The biomasses estimation, based on the method of swept area, in the studied zone showed that P. radiate is the most abundant species with about 20 000 tones, followed by C. vulgatum (7 645 tones) and T. speciosa (more than 1 000 tones). The Donax trunculus biomass is very low with only 13 tones. Finally, the abundance indexes distribution cartography permitted us to note that it varies from one species to another one and from one sampled station to another.	
Tipo: 	Journal Contribution	
Idioma: 	Francês	
Identificador: 	Bulletin de l'Institut National des Sciences et Technologies de la Mer (INSTM) (, 33 , p. 13 -21

0330-0080

http://hdl.handle.net/1834/4272