Exploring the ventricular morphology of the heart of Brycon amazonicus (Agassiz, 1829) (Teleostei, Characiformes)

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Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorUniversidade Estadual de Campinas (UNICAMP)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorD. dos Santos, Diego-
Autor(es): dc.creatorB. Gardinal, Mario V.-
Autor(es): dc.creatorR. Ruiz, Thalles F.-
Autor(es): dc.creatorFlorêncio-Silva, Rinaldo-
Autor(es): dc.creatorR. Vidal, Mateus-
Autor(es): dc.creatorR. Falleiros-Júnior, Luiz-
Autor(es): dc.creatorR. Taboga, Sebartião-
Autor(es): dc.creatorB. Franceschini-Vicentini, Irene-
Autor(es): dc.creatorA. Vicentini, Carlos-
Data de aceite: dc.date.accessioned2025-08-21T20:16:56Z-
Data de disponibilização: dc.date.available2025-08-21T20:16:56Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2025-06-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.morpho.2024.100944-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/299712-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/299712-
Descrição: dc.descriptionBrycon amazonicus, a fish species widely distributed along freshwater rivers in Latin America, is important in maintaining ecological balance. Although some morphological/physiological aspects of B. amazonicus have been reported, the cardiac histomorphology of this species remains poorly understood. Therefore, this study aimed to describe the heart, emphasizing coronary distribution and ventricular myoarchitecture, correlating its structure with its functional activity. Ten adult specimens were anesthetized and perfused with Trident® ink to highlight the coronary branching. Subsequently, the animals were euthanized to collect the hearts, which were collected and processed for histological and histochemical techniques and scanning electron microscopy. We observed that the heart of B. amazonicus has a pyramidal ventricle, mixed myocardium, and coronary vessels restricted to the compact layer, according to classifications in the literature. The compact layer comprises two types of muscle bundles, arranged in longitudinal and circular orientations. The coronary circulation, which originates in the lateral cephalic region, starts from the heart and extends to the ventricular myocardium. Therefore, B. amazonicus has a cardiac morphology similar to that of other teleost species already described in the literature, expanding information on the Characiformes group. The description obtained of the heart of this species may contribute to further studies that seek a better understanding of the ecophysiology and evolution of teleost fish in the freshwaters of the Neotropical region.-
Descrição: dc.descriptionDepartment of Morphology and Genetics Histology and Structural Biology Laboratory Federal University of São Paulo (Unifesp), Rua Botucatu 740, Edifício Lemos Torres – 3° andar, SP-
Descrição: dc.descriptionInstitute of Biology State University of Campinas (UNICAMP), SP-
Descrição: dc.descriptionDepartment of Biology Institute of Biosciences Humanities and Exact Sciences (IBILCE) Sao Paulo State University (Unesp), SP-
Descrição: dc.descriptionInstitute of Biosciences Zoology Sector Botucatu Sao Paulo State University (Unesp), SP-
Descrição: dc.descriptionUnesp Aquaculture Center Sao Paulo State University (Unesp), SP-
Descrição: dc.descriptionDepartment of Biological Sciences Sao Paulo State University (Unesp), SP-
Descrição: dc.descriptionDepartment of Biology Institute of Biosciences Humanities and Exact Sciences (IBILCE) Sao Paulo State University (Unesp), SP-
Descrição: dc.descriptionInstitute of Biosciences Zoology Sector Botucatu Sao Paulo State University (Unesp), SP-
Descrição: dc.descriptionUnesp Aquaculture Center Sao Paulo State University (Unesp), SP-
Descrição: dc.descriptionDepartment of Biological Sciences Sao Paulo State University (Unesp), SP-
Idioma: dc.languageen-
Relação: dc.relationMorphologie-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectAnatomy-
Palavras-chave: dc.subjectMorphology-
Palavras-chave: dc.subjectMyocardium-
Palavras-chave: dc.subjectTeleost-
Palavras-chave: dc.subjectVentricle-
Título: dc.titleExploring the ventricular morphology of the heart of Brycon amazonicus (Agassiz, 1829) (Teleostei, Characiformes)-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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