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Larval cannibalism rates in the mangrove crab Ucides cordatus (Decapoda: Ocypodidae) under laboratory conditions
2008; Wiley; Volume: 39; Issue: 3 Linguagem: Inglês
10.1111/j.1365-2109.2007.01887.x
ISSN1365-2109
AutoresRobson Ventura, Ubiratã A. T. da Silva, Gilmar Perbiche‐Neves, Antônio Ostrensky, Walter A. Boeger, Márcio R. Pie,
Tópico(s)Aquaculture Nutrition and Growth
ResumoAquaculture ResearchVolume 39, Issue 3 p. 263-267 Larval cannibalism rates in the mangrove crab Ucides cordatus (Decapoda: Ocypodidae) under laboratory conditions Robson Ventura, Robson Ventura Grupo Integrado de Aqüicultura e Estudos Ambientais, Universidade Federal do Paraná, Curitiba, PR, BrazilSearch for more papers by this authorUbiratã A T Da Silva, Ubiratã A T Da Silva Grupo Integrado de Aqüicultura e Estudos Ambientais, Universidade Federal do Paraná, Curitiba, PR, BrazilSearch for more papers by this authorGilmar Perbiche-Neves, Gilmar Perbiche-Neves Departamento de Zoologia, Universidade Estadual Paulista, Botucatu, SP, BrazilSearch for more papers by this authorAntonio Ostrensky, Antonio Ostrensky Grupo Integrado de Aqüicultura e Estudos Ambientais, Universidade Federal do Paraná, Curitiba, PR, Brazil Departamento de Zootecnia, Universidade Federal do Paraná, Curitiba, PR, BrazilSearch for more papers by this authorWalter A Boeger, Walter A Boeger Grupo Integrado de Aqüicultura e Estudos Ambientais, Universidade Federal do Paraná, Curitiba, PR, Brazil Departamento de Zoologia, Universidade Federal do Paraná, Curitiba, PR, BrazilSearch for more papers by this authorMarcio R Pie, Marcio R Pie Grupo Integrado de Aqüicultura e Estudos Ambientais, Universidade Federal do Paraná, Curitiba, PR, BrazilSearch for more papers by this author Robson Ventura, Robson Ventura Grupo Integrado de Aqüicultura e Estudos Ambientais, Universidade Federal do Paraná, Curitiba, PR, BrazilSearch for more papers by this authorUbiratã A T Da Silva, Ubiratã A T Da Silva Grupo Integrado de Aqüicultura e Estudos Ambientais, Universidade Federal do Paraná, Curitiba, PR, BrazilSearch for more papers by this authorGilmar Perbiche-Neves, Gilmar Perbiche-Neves Departamento de Zoologia, Universidade Estadual Paulista, Botucatu, SP, BrazilSearch for more papers by this authorAntonio Ostrensky, Antonio Ostrensky Grupo Integrado de Aqüicultura e Estudos Ambientais, Universidade Federal do Paraná, Curitiba, PR, Brazil Departamento de Zootecnia, Universidade Federal do Paraná, Curitiba, PR, BrazilSearch for more papers by this authorWalter A Boeger, Walter A Boeger Grupo Integrado de Aqüicultura e Estudos Ambientais, Universidade Federal do Paraná, Curitiba, PR, Brazil Departamento de Zoologia, Universidade Federal do Paraná, Curitiba, PR, BrazilSearch for more papers by this authorMarcio R Pie, Marcio R Pie Grupo Integrado de Aqüicultura e Estudos Ambientais, Universidade Federal do Paraná, Curitiba, PR, BrazilSearch for more papers by this author First published: 24 January 2008 https://doi.org/10.1111/j.1365-2109.2007.01887.xCitations: 5 Correspondence: R Ventura, Grupo Integrado de Aqüicultura e Estudos Ambientais, Universidade Federal do Paraná, Rua dos Funcionários, 1540, CEP 80035-050, Juvevê, Curitiba, PR, Brazil. E-mail: robson.ventura@gmail.com Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat Abstract Predation of zoeas by megalopae of Ucides cordatus is frequently observed in the laboratory during larval rearing, a phenomenon that could considerably reduce the output of larviculture. Experiments were carried out in the present study to assess how the survivorship of larvae at the end of the larviculture is influenced by cannibalism by megalopae on the larvae of earlier stages, as well as on other megalopae. In addition, tests were performed to assess whether the adoption of different feeding protocols can decrease cannibalism rates. Experiments were carried out in plastic vials containing ocean water (salinity 25 g L−1) under controlled environmental conditions (26 °C and 16:8 h LD photoperiod). An ensemble analysis of all the developmental stages indicated that zoeal mortality rates were significantly higher in the presence of megalopae, a result that is consistent with cannibalism by megalopae. However, separate analysis for each developmental stage indicated that only zoea IV, V and VI show reduced survivorship. No cannibalism was detected among megalopae. Food supplementation using Artemia sp. at a density of 6 nauplii mL−1 proved to be successful in reducing cannibalism rates, whereas supplementation at a lower density (0.3 nauplii mL−1) failed to show such an effect. The implications of these results for the larviculture of U. cordatus are discussed. Citing Literature Volume39, Issue3February 2008Pages 263-267 RelatedInformation
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