Age and growth of Callinectes danae and C. ornatus (Crustacea, Decapoda) in Guanabara Bay, Rio de Janeiro, Brazil

被引：20
|
作者：
Keunecke, Karina A. [1 ]
D'Incao, Fernando [2 ]
Moreira, Francisco N. [1 ]
Silva, Demarques R., Jr. [1 ]
Verani, Jose R. [3 ]
机构：
[1] Univ Fed Rio de Janeiro, Inst Biol, Dept Biol Marinha, Lab Biol & Tecnol Pesqueira, BR-21949900 Rio De Janeiro, RJ, Brazil
[2] Fundacao Univ Rio Grande, Dept Oceanog, Lab Crustaceos Decapodes, BR-96201900 Rio Grande, RS, Brazil
[3] Univ Fed Sao Carlos, Dept Hidrobiol, Lab Dinam Populacoes Peixes, BR-13565905 Sao Carlos, SP, Brazil
来源：
IHERINGIA SERIE ZOOLOGIA | 2008年 / 98卷 / 02期
关键词：
fishery; management; swimmingcrab; by-catch;
D O I：
10.1590/S0073-47212008000200011
中图分类号：
Q95 [动物学];
学科分类号：
071002 ;
摘要：
Callinectes danae Smith, 1869 and C. ornattus Ordway, 1863 constitute an important portion form the fishing products at Guanabara Bay. Both specics compose it significant by-catch fraction being a lot discarded during shrimp trawlings alone Brazilian coast. Growth curves were estimated by modal progression analysis. For the biological parameters it was applied the Bertalanffy growth function and for the age it was used its inverse formula. Growth curves of C. danae and C. ornatus were respectively: male LC = [20 (1 -e (-0.005)), female LC = 113 (1-e (-0.005)); male LC = 94 (1 - e (-0.005)) and female LC = 110 (1 - e(-0.005)). The age for both species reached around 2.5 years, besides to confirm growth curves. Growth study in crusataceans is very important, because besides supplying biological information it subsidizes fishery management for exploted species.
引用
收藏
页码：231 / 235
页数：5
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