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Early development and allometric growth in hatchery-reared characin Brycon orbignyanus

2012; Wiley; Volume: 45; Issue: 6 Linguagem: Inglês

10.1111/are.12041

1365-2109

Lorena Bettinelli Nogueira, Alexandre Lima Godinho, Hugo Pereira Godinho,

Aquaculture Nutrition and Growth

Aquaculture ResearchVolume 45, Issue 6 p. 1004-1011 Original Article Early development and allometric growth in hatchery-reared characin Brycon orbignyanus Lorena Bettinelli Nogueira, Lorena Bettinelli Nogueira Pontifícia Universidade Católica de Minas Gerais, Belo Horizonte, MG, BrazilSearch for more papers by this authorAlexandre Lima Godinho, Alexandre Lima Godinho Centro de Transposição de Peixes, Universidade Federal de Minas Gerais, Belo Horizonte, MG, BrazilSearch for more papers by this authorHugo Pereira Godinho, Corresponding Author Hugo Pereira Godinho Pontifícia Universidade Católica de Minas Gerais, Belo Horizonte, MG, BrazilCorrespondence: H P Godinho, Programa de Pós-graduação em Zoologia de Vertebrados, Pontifícia Universidade Católica de Minas Gerais, Av. Dom José Gaspar, 500, 30535-610, Belo Horizonte, MG, Brasil. E-mail: hgodinho@ufmg.brSearch for more papers by this author Lorena Bettinelli Nogueira, Lorena Bettinelli Nogueira Pontifícia Universidade Católica de Minas Gerais, Belo Horizonte, MG, BrazilSearch for more papers by this authorAlexandre Lima Godinho, Alexandre Lima Godinho Centro de Transposição de Peixes, Universidade Federal de Minas Gerais, Belo Horizonte, MG, BrazilSearch for more papers by this authorHugo Pereira Godinho, Corresponding Author Hugo Pereira Godinho Pontifícia Universidade Católica de Minas Gerais, Belo Horizonte, MG, BrazilCorrespondence: H P Godinho, Programa de Pós-graduação em Zoologia de Vertebrados, Pontifícia Universidade Católica de Minas Gerais, Av. Dom José Gaspar, 500, 30535-610, Belo Horizonte, MG, Brasil. E-mail: hgodinho@ufmg.brSearch for more papers by this author First published: 12 October 2012 https://doi.org/10.1111/are.12041Citations: 15Read 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 The characin piracanjuba, Brycon orbignyanus (Valenciennes, 1850), has been recognized as a candidate species for aquaculture. The early morphological development and allometric growth of hatchery-reared piracanjuba were studied from hatching to the juvenile stage, at water temperature of 27.9 ± 0.6°C. Growth, in total length (TL), was linear during that period. At hatching (3.4 ± 0.2 mm TL), the non-pigmented free embryo had most functional systems not fully differentiated. The primordial finfold was almost completely absorbed, except the preanal segment, in individuals measuring 9.1 ± 0.4 mm TL. Retinal pigmentation occurred as early as 24 hours posthatching (hph). The yolk sac was no longer observed after 60 hph. Body proportion and growth rates changed considerably during early morphological development. The head experienced positive allometric growth in length throughout the interval of study, and at the inflexion point of 6.6 mm TL, head growth had reduced significantly, but still remained allometrically positive. Trunk length showed negative allometric growth throughout the period of study. The growth of the postanal length was allometrically positive until the inflexion point at 7.1 mm TL, and thereafter decreased to near isometric. The allometric growth changes in the piracanjuba during initial life likely result from selective organogenesis directed towards survival priorities. Citing Literature Volume45, Issue6May 2014Pages 1004-1011 RelatedInformation