Ultrastructure aspects of Brycon gouldingi (Teleostei, Characidae) related to swimming ability and feeding during larval development

Autor(es)

Faustino, F. ^{[1, 2, 3]} ; Makino, L. C. ^[4] ; Neumann, E. ^[5] ; Nakaghi, L. S. O. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Estadual Paulista CAUNESP, Ctr Aquicultura, Jaboticabal, SP - Brazil

^[2] Univ Estadual Paulista UNESP, Fac Ciencias Agr & Vet, Dept Morfol & Fisiol Anim, Lab Histol & Embriol, Jaboticabal, SP - Brazil

^[3] Univ Fed Sao Carlos, Dept Genet & Evolucao, Lab Biodiversidade Mol & Conservacao, Sao Carlos, SP - Brazil

^[4] Univ Estadual Paulista UNESP, Campus Expt Registro, Registro, SP - Brazil

^[5] Piscicultura Buriti, Nova Mutum, Mato Grosso - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Journal of Fish Biology; v. 92, n. 5, p. 1560-1573, MAY 2018.
• Citações Web of Science: 1

Resumo

The larval ultrastructure of Brycon gouldingi related to swimming and feeding from hatching to total yolk absorption is described from scanning electron micrographs. Newly hatched larvae (time zero) had no mouth opening, undefined optic vesicles, an olfactory plate visible as a shallow depression, rudimentary gill arches, neural groove, embryonic fin and a primary neuromast in the dorsal region of the head. At the time of yolk absorption, 55 h post hatching, the larvae presented an optic vesicle comprising an optic cup and crystalline lens; a mouth with tongue, tapered teeth and taste buds; a ciliated olfactory cavity; branched gill arches; filled neural groove signalling central nervous system development; caudal, pectoral, dorsal and anal fins; and neuromasts distributed throughout the head and body. These characters are related to prey capture and swimming ability, key aspects of survival during the larval stage. The results of this study provide important information for exploitation and aquaculture of B. gouldingi. (c) 2018 The Fisheries Society of the British Isles (AU)

• Processo FAPESP: 07/57826-7 - Desenvolvimento inicial de Brycon gouldingi (Teleostei, characiadae)
• Beneficiário: Francine Faustino Theodoro Costa
• Modalidade de apoio: Bolsas no Brasil - Mestrado