Embryonic development and larval growth of Brycon nattereri Gunther, 1864 (Characidae) and its implications for captive rearing
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1017/S0967199417000594 http://hdl.handle.net/11449/163669 |
Resumo: | The aim of this study was to describe, for the first time, the embryogenesis and larval growth of the Paraitinga Brycon nattereri Gunther, 1864 reared in captivity. After artificial fertilization, eggs were incubated at constant temperature (similar to 19 degrees C) and collected every 15 min during the first 3 h and then every 3 h until hatching. Five larvae were collected daily over 15 days for evaluation of the length, yolk sac volume and specific growth rate. The following stages of embryonic development were identified: zygote, cleavage, gastrula, segmentation and larval. The hatching occurred after 50-54 h, with larvae poorly developed and fully depigmented, devoid of mouth and swimming capacity, presenting 6.32 mm total length and 3.64 mm(3) yolk sac volume. The mouth opening was observed between days 3-4 after hatching. The yolk sac absorption was slow during the first 3 days, increasing sharply after this period, being completed on the day 11. During this period there was a decrease in the larval growth rate. After yolk sac absorption, an increase in the growth rate was observed that coincided with the start of exogenous feeding. Cannibalism was not observed during the 15 days of evaluation. The initial development of B. nattereri was slow and poorly developed larvae in relation to other Brycon species, certainly due to the lower temperature required for egg incubation and larval rearing. Other studies are needed in order to develop techniques to improve the methods of incubating eggs and feeding larvae. |
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Embryonic development and larval growth of Brycon nattereri Gunther, 1864 (Characidae) and its implications for captive rearingDevelopmentEmbryoLarvaeNeotropicalThreatened fishThe aim of this study was to describe, for the first time, the embryogenesis and larval growth of the Paraitinga Brycon nattereri Gunther, 1864 reared in captivity. After artificial fertilization, eggs were incubated at constant temperature (similar to 19 degrees C) and collected every 15 min during the first 3 h and then every 3 h until hatching. Five larvae were collected daily over 15 days for evaluation of the length, yolk sac volume and specific growth rate. The following stages of embryonic development were identified: zygote, cleavage, gastrula, segmentation and larval. The hatching occurred after 50-54 h, with larvae poorly developed and fully depigmented, devoid of mouth and swimming capacity, presenting 6.32 mm total length and 3.64 mm(3) yolk sac volume. The mouth opening was observed between days 3-4 after hatching. The yolk sac absorption was slow during the first 3 days, increasing sharply after this period, being completed on the day 11. During this period there was a decrease in the larval growth rate. After yolk sac absorption, an increase in the growth rate was observed that coincided with the start of exogenous feeding. Cannibalism was not observed during the 15 days of evaluation. The initial development of B. nattereri was slow and poorly developed larvae in relation to other Brycon species, certainly due to the lower temperature required for egg incubation and larval rearing. Other studies are needed in order to develop techniques to improve the methods of incubating eggs and feeding larvae.Fundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG)Embrapa Tabuleiros Costeiros, Av Beira Mar 3250, BR-49025040 Aracaju, SE, BrazilUniv Estadual Paulista, Dept Biol & Zootecnia, Rua Moncao 226, BR-15385000 Ilha Solteira, SP, BrazilUniv Jose Rosario Vellano, Rod MG 179,Km 0,Campus Univ, BR-37130000 Alfenas, MG, BrazilUniv Fed Lavras, Dept Zootecn, POB 3037, BR-37200000 Lavras, MG, BrazilUniv Estadual Paulista, Dept Biol & Zootecnia, Rua Moncao 226, BR-15385000 Ilha Solteira, SP, BrazilFAPEMIG: CVZ-1609/06Cambridge Univ PressEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)Universidade Estadual Paulista (Unesp)Univ Jose Rosario VellanoUniversidade Federal de Lavras (UFLA)Maria, Alexandre N.Ninhaus-Silveira, Alexandre [UNESP]Orfao, Laura H.Viveiros, Ana T. M.2018-11-26T17:44:30Z2018-11-26T17:44:30Z2017-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article711-718application/pdfhttp://dx.doi.org/10.1017/S0967199417000594Zygote. New York: Cambridge Univ Press, v. 25, n. 6, p. 711-718, 2017.0967-1994http://hdl.handle.net/11449/16366910.1017/S0967199417000594WOS:000418839900005WOS000418839900005.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengZygote0,387info:eu-repo/semantics/openAccess2023-10-16T06:08:53Zoai:repositorio.unesp.br:11449/163669Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-10-16T06:08:53Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Embryonic development and larval growth of Brycon nattereri Gunther, 1864 (Characidae) and its implications for captive rearing |
title |
Embryonic development and larval growth of Brycon nattereri Gunther, 1864 (Characidae) and its implications for captive rearing |
spellingShingle |
Embryonic development and larval growth of Brycon nattereri Gunther, 1864 (Characidae) and its implications for captive rearing Maria, Alexandre N. Development Embryo Larvae Neotropical Threatened fish |
title_short |
Embryonic development and larval growth of Brycon nattereri Gunther, 1864 (Characidae) and its implications for captive rearing |
title_full |
Embryonic development and larval growth of Brycon nattereri Gunther, 1864 (Characidae) and its implications for captive rearing |
title_fullStr |
Embryonic development and larval growth of Brycon nattereri Gunther, 1864 (Characidae) and its implications for captive rearing |
title_full_unstemmed |
Embryonic development and larval growth of Brycon nattereri Gunther, 1864 (Characidae) and its implications for captive rearing |
title_sort |
Embryonic development and larval growth of Brycon nattereri Gunther, 1864 (Characidae) and its implications for captive rearing |
author |
Maria, Alexandre N. |
author_facet |
Maria, Alexandre N. Ninhaus-Silveira, Alexandre [UNESP] Orfao, Laura H. Viveiros, Ana T. M. |
author_role |
author |
author2 |
Ninhaus-Silveira, Alexandre [UNESP] Orfao, Laura H. Viveiros, Ana T. M. |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA) Universidade Estadual Paulista (Unesp) Univ Jose Rosario Vellano Universidade Federal de Lavras (UFLA) |
dc.contributor.author.fl_str_mv |
Maria, Alexandre N. Ninhaus-Silveira, Alexandre [UNESP] Orfao, Laura H. Viveiros, Ana T. M. |
dc.subject.por.fl_str_mv |
Development Embryo Larvae Neotropical Threatened fish |
topic |
Development Embryo Larvae Neotropical Threatened fish |
description |
The aim of this study was to describe, for the first time, the embryogenesis and larval growth of the Paraitinga Brycon nattereri Gunther, 1864 reared in captivity. After artificial fertilization, eggs were incubated at constant temperature (similar to 19 degrees C) and collected every 15 min during the first 3 h and then every 3 h until hatching. Five larvae were collected daily over 15 days for evaluation of the length, yolk sac volume and specific growth rate. The following stages of embryonic development were identified: zygote, cleavage, gastrula, segmentation and larval. The hatching occurred after 50-54 h, with larvae poorly developed and fully depigmented, devoid of mouth and swimming capacity, presenting 6.32 mm total length and 3.64 mm(3) yolk sac volume. The mouth opening was observed between days 3-4 after hatching. The yolk sac absorption was slow during the first 3 days, increasing sharply after this period, being completed on the day 11. During this period there was a decrease in the larval growth rate. After yolk sac absorption, an increase in the growth rate was observed that coincided with the start of exogenous feeding. Cannibalism was not observed during the 15 days of evaluation. The initial development of B. nattereri was slow and poorly developed larvae in relation to other Brycon species, certainly due to the lower temperature required for egg incubation and larval rearing. Other studies are needed in order to develop techniques to improve the methods of incubating eggs and feeding larvae. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-12-01 2018-11-26T17:44:30Z 2018-11-26T17:44:30Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1017/S0967199417000594 Zygote. New York: Cambridge Univ Press, v. 25, n. 6, p. 711-718, 2017. 0967-1994 http://hdl.handle.net/11449/163669 10.1017/S0967199417000594 WOS:000418839900005 WOS000418839900005.pdf |
url |
http://dx.doi.org/10.1017/S0967199417000594 http://hdl.handle.net/11449/163669 |
identifier_str_mv |
Zygote. New York: Cambridge Univ Press, v. 25, n. 6, p. 711-718, 2017. 0967-1994 10.1017/S0967199417000594 WOS:000418839900005 WOS000418839900005.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Zygote 0,387 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
711-718 application/pdf |
dc.publisher.none.fl_str_mv |
Cambridge Univ Press |
publisher.none.fl_str_mv |
Cambridge Univ Press |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1799964588346703872 |