Structural and ultrastructural description of larval development in Zungaro jahu
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/S0967199416000423 http://hdl.handle.net/11449/174161 |
Resumo: | The Zungaro jahu is an important large catfish of the order Siluriformes that is in danger of extinction due to habitat destruction. Studies on its biology are scarce and the majority relates only to nutrition or parasitology. In order to provide greater information on its morphology and aid husbandry and larviculture studies, the aim of this study was to characterize larval development in Z. jahu from hatching to total yolk absorption. Samples were collected at pre-established times, processed, stained, and analyzed under stereomicroscopy, light microscopy, and scanning electron microscopy. Total yolk absorption was observed by 60 hours post-hatching (hph) at 28.75 ± 0.59°C. The newly hatched larvae showed slightly pigmented body, the outline of the digestive tract, evident eyes, and the first swimming movements. Mouth opening took place at 12 hph and the connection between the oral cavity and the rudimentary intestine was observed at 24 hph. Were analyzed the main larval organs and systems: digestive organs, heart, gill arches, sensory system, thyroid, kidney, and swim bladder. As the larvae grew, these organs became more mature and functional. The development of the sensory and feeding structures was observed at the start of larval development, and thus before depletion of endogenous energy reserves, the strategy for this species is to increase its chances of survival in the environment. |
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Structural and ultrastructural description of larval development in Zungaro jahuFishHistologyMorphologyOntogenyTeleosteiThe Zungaro jahu is an important large catfish of the order Siluriformes that is in danger of extinction due to habitat destruction. Studies on its biology are scarce and the majority relates only to nutrition or parasitology. In order to provide greater information on its morphology and aid husbandry and larviculture studies, the aim of this study was to characterize larval development in Z. jahu from hatching to total yolk absorption. Samples were collected at pre-established times, processed, stained, and analyzed under stereomicroscopy, light microscopy, and scanning electron microscopy. Total yolk absorption was observed by 60 hours post-hatching (hph) at 28.75 ± 0.59°C. The newly hatched larvae showed slightly pigmented body, the outline of the digestive tract, evident eyes, and the first swimming movements. Mouth opening took place at 12 hph and the connection between the oral cavity and the rudimentary intestine was observed at 24 hph. Were analyzed the main larval organs and systems: digestive organs, heart, gill arches, sensory system, thyroid, kidney, and swim bladder. As the larvae grew, these organs became more mature and functional. The development of the sensory and feeding structures was observed at the start of larval development, and thus before depletion of endogenous energy reserves, the strategy for this species is to increase its chances of survival in the environment.Companhia Energética de São PauloCentro de Aquicultura da UNESP Departamento de Morfologia e Fisiologia Animal Faculdade de Ciências Agrárias e Veterinárias (FCVA) Univesidade Estadual Paulista Julio de Mesquita Filho, Via de Acesso Professor Paulo Donato Castellani, S/NFundação Amaral CarvalhoUniversidade Federal de São CarlosUNESP's Aquaculture Center (CAUNESP) Universidade Estadual Paulista Campus JaboticabalCentro de Aquicultura da UNESP Departamento de Morfologia e Fisiologia Animal Faculdade de Ciências Agrárias e Veterinárias (FCVA) Univesidade Estadual Paulista Julio de Mesquita Filho, Via de Acesso Professor Paulo Donato Castellani, S/NUNESP's Aquaculture Center (CAUNESP) Universidade Estadual Paulista Campus JaboticabalUniversidade Estadual Paulista (Unesp)Fundação Amaral CarvalhoUniversidade Federal de São Carlos (UFSCar)Marques, CamilaFaustino, FrancineBertolucci, BrunoDo Carmo Faria Paes, Maria [UNESP]Valentin, Fernanda Nogueira [UNESP]Nakaghi, Laura Satiko Okada [UNESP]2018-12-11T17:09:39Z2018-12-11T17:09:39Z2017-04-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article149-159application/pdfhttp://dx.doi.org/10.1017/S0967199416000423Zygote, v. 25, n. 2, p. 149-159, 2017.1469-87300967-1994http://hdl.handle.net/11449/17416110.1017/S09671994160004232-s2.0-850112990922-s2.0-85011299092.pdf9203413733944127Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengZygote0,3870,387info:eu-repo/semantics/openAccess2024-06-06T18:41:41Zoai:repositorio.unesp.br:11449/174161Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T17:51:49.050023Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Structural and ultrastructural description of larval development in Zungaro jahu |
title |
Structural and ultrastructural description of larval development in Zungaro jahu |
spellingShingle |
Structural and ultrastructural description of larval development in Zungaro jahu Marques, Camila Fish Histology Morphology Ontogeny Teleostei |
title_short |
Structural and ultrastructural description of larval development in Zungaro jahu |
title_full |
Structural and ultrastructural description of larval development in Zungaro jahu |
title_fullStr |
Structural and ultrastructural description of larval development in Zungaro jahu |
title_full_unstemmed |
Structural and ultrastructural description of larval development in Zungaro jahu |
title_sort |
Structural and ultrastructural description of larval development in Zungaro jahu |
author |
Marques, Camila |
author_facet |
Marques, Camila Faustino, Francine Bertolucci, Bruno Do Carmo Faria Paes, Maria [UNESP] Valentin, Fernanda Nogueira [UNESP] Nakaghi, Laura Satiko Okada [UNESP] |
author_role |
author |
author2 |
Faustino, Francine Bertolucci, Bruno Do Carmo Faria Paes, Maria [UNESP] Valentin, Fernanda Nogueira [UNESP] Nakaghi, Laura Satiko Okada [UNESP] |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Fundação Amaral Carvalho Universidade Federal de São Carlos (UFSCar) |
dc.contributor.author.fl_str_mv |
Marques, Camila Faustino, Francine Bertolucci, Bruno Do Carmo Faria Paes, Maria [UNESP] Valentin, Fernanda Nogueira [UNESP] Nakaghi, Laura Satiko Okada [UNESP] |
dc.subject.por.fl_str_mv |
Fish Histology Morphology Ontogeny Teleostei |
topic |
Fish Histology Morphology Ontogeny Teleostei |
description |
The Zungaro jahu is an important large catfish of the order Siluriformes that is in danger of extinction due to habitat destruction. Studies on its biology are scarce and the majority relates only to nutrition or parasitology. In order to provide greater information on its morphology and aid husbandry and larviculture studies, the aim of this study was to characterize larval development in Z. jahu from hatching to total yolk absorption. Samples were collected at pre-established times, processed, stained, and analyzed under stereomicroscopy, light microscopy, and scanning electron microscopy. Total yolk absorption was observed by 60 hours post-hatching (hph) at 28.75 ± 0.59°C. The newly hatched larvae showed slightly pigmented body, the outline of the digestive tract, evident eyes, and the first swimming movements. Mouth opening took place at 12 hph and the connection between the oral cavity and the rudimentary intestine was observed at 24 hph. Were analyzed the main larval organs and systems: digestive organs, heart, gill arches, sensory system, thyroid, kidney, and swim bladder. As the larvae grew, these organs became more mature and functional. The development of the sensory and feeding structures was observed at the start of larval development, and thus before depletion of endogenous energy reserves, the strategy for this species is to increase its chances of survival in the environment. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-04-01 2018-12-11T17:09:39Z 2018-12-11T17:09:39Z |
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/S0967199416000423 Zygote, v. 25, n. 2, p. 149-159, 2017. 1469-8730 0967-1994 http://hdl.handle.net/11449/174161 10.1017/S0967199416000423 2-s2.0-85011299092 2-s2.0-85011299092.pdf 9203413733944127 |
url |
http://dx.doi.org/10.1017/S0967199416000423 http://hdl.handle.net/11449/174161 |
identifier_str_mv |
Zygote, v. 25, n. 2, p. 149-159, 2017. 1469-8730 0967-1994 10.1017/S0967199416000423 2-s2.0-85011299092 2-s2.0-85011299092.pdf 9203413733944127 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Zygote 0,387 0,387 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
149-159 application/pdf |
dc.source.none.fl_str_mv |
Scopus 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_ |
1808128867693494272 |