Estrutura populacional de Portunus spinimanus Latreille (Crustacea, Portunidae) na Armação do Itapocoroy, Penha, Santa Catarina, Brasil

Autor:	Maria José Lunardon-Branco, Flávio Xavier Souto, Joaquim Olinto Branco
Jazyk:	portugalština
Rok vydání:	2002
Předmět:	Fishery education.field_of_study Population Portunus spinimanus Animal Science and Zoology population structure Biology artisanal fishery education Portunidae biology.organism_classification
Zdroj:	Revista Brasileira de Zoologia v.19 n.3 2002 Revista Brasileira de Zoologia Sociedade Brasileira de Zoologia (SBZ) instacron:SBZ
Popis:	Portunus spinimanus Latreille, 1819 is one abundant Portunidae speeies whieh are eaught by sea-bob-shrimps artisanal fishery in Armacaodo Itapoeoroy,Penha, Santa Catarina, Brazil. Aiming to analyze its population strueture, a total of 995 males and 1925 fernaleswere eollected by means of overtrawl frorn January to Decernber 1995, between the depthsof 610 10meters,in lhe periodsof morning,afternoonand evening. The width variation of lhe carapaee ranged irom 3.0 to 14.0 em in the males and 3.0 to 11.0emin females. The species presents growth isometric and the males reach width and weight assintoticand bigger that lhe females.The estirnatedfirst maturation width was between 6.8 and 7.6 em, reached with lhe approxirnated age of 15 months. The artisanal fishery in Armacao do lrapocoroy is acting with a higher intensity over the juveniles stock.
Databáze:	OpenAIRE
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