Embryogenesis of the neotropical freshwater Siluriforme<i>Pseudoplatystoma coruscans</i>

Cardoso, Elizabeth L.; Alves, Marlene; Ferreira, R. M. A.; Godinho, Hugo Pereira

doi:10.1051/alr:1995037

Cited by 40 publications

(49 citation statements)

References 8 publications

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“…The appearance of periblast was also reported at blastula stage by other authors, such as Cardoso et al (1995) in P. coruscans, Ninhaus-Silveira et al (2006) in P. lineatus andGonzález-Doncel et al (2005) in O. latipes. However, it should be pointed out that the appearance of this layer was observed at morula stage by Long and Ballard (1976) in C. commersoni, by Matkovic et al (1985) in R. sapo and by Marques (2008) …”

Section: Discussionsupporting

confidence: 74%

“…In Brazil, there are reports about these aspects in species like Rhamdia hilarii (Godinho et al, 1978), Prochilodus lineatus (Castellani et al, 1994), Collosoma macropomum (Albuquerque et al, 1994;Ribeiro et al, 1995), Piaractus mesopotamicus (Ribeiro et al, 1995), Pseudoplatystoma corruscans, (Cardoso et al, 1995), Brycon cephalus (Lopes et al, 1995;Romagosa et al, 2001), Pimelodus maculatus (Luz et al, 2001), Brycon orbignyanus (Nakatani et al, 2001) and Brycon insignis (Andrade-Talmelli et al, 2001).…”

Section: Introductionmentioning

confidence: 99%

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Brycon gouldingi(Teleostei, Characidae): aspects of the embryonic development in a new fish species with aquaculture potential

Faustino

Nakaghi

Neumann³

2010

Zygote

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SummaryBrycon gouldingi is an endemic species from Tocantins-Araguaia basin, used as a food source by riverine communities and relevant to aquaculture. Information about the initial morphology of B. gouldingi, a recently described species, is absent. In the present study, we analysed the fertilization and the embryonic development of this species based on light and scanning electron microscopy. After collection of adult specimens in Mortes River -Mato Grosso, Brazil, adaptation to captivity and induced spawning at Buriti Fishculture, Nova Mutum -Mato Grosso, Brazil, in December 2007 and January 2008, samples were collected at pre-defined periods from egg extrusion up to larval hatching, which occurred at 13.9 ± 0.06 h post-fertilization (hpf) in average. At the moment of extrusion, the eggs were slightly ovoid bearing a single micropyle per oocyte with a funnel-shaped micropyle canal and vestibule covered with longitudinal folds, typical of the genus Brycon. The embryonic development of B. gouldingi was characterized by six stages with distinct features: zygote (from fertilization up to formation of egg-cell); cleavage (cell divisions resulting in blastomeres, including the morula phase); blastula (several embryonic cells in a cup shape, without distinction of cell boundaries); gastrula (cell movement); histogenesis/organogenesis (formation of tissues and organs); and hatching (larval chorion rupture). Right after hatching, the larvae presented neither swimming abilities nor visual accuracy, and the digestive trait was undifferentiated. The present study is the first report on biological features of embryogenesis in B. gouldingi, providing relevant information to several approaches, mainly related to taxonomy, ecology, conservation and captive rearing of this new Brycon species.

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Section: Discussionsupporting

confidence: 74%

Section: Introductionmentioning

confidence: 99%

Brycon gouldingi(Teleostei, Characidae): aspects of the embryonic development in a new fish species with aquaculture potential

Faustino

Nakaghi

Neumann³

2010

Zygote

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“…This is a long incubation period, since for species such as Prochilodus scrofa (curimba), incubation lasts for about 22 hours (Cavicchioli & Leonhardt, 1993), and 18-19 hours in Pseudoplatystoma corruscans (pintado) at water temperatures of 25-26°C (Cardoso et al, 1995).…”

Section: Embryonic Periodmentioning

confidence: 99%

Morphological description of the developmental stages of Parauchenipterus galeatus (Linnaeus, 1766) (Siluriformes, Auchenipteridae) on the floodplain of the upper Paraná River

1999

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We provide morphological and morphometric descriptions of the developmental stages of Parauchenipterus galeatus, from the floodplain of the Upper Paraná River. Specimens were obtained by induced spawning. The species has large adhesive eggs with a double membrane. The incubation period is long, 65 hours at 27°C. The larvae are well developed at hatching, with relatively rapid larval development. Analysis of the morphometric data showed that the body parts of P. galeatus grow proportionately. Este trabalho teve por objetivo descrever morfológica e morfometricamente os estágios de desenvolvimento de Parauchenipterus galeatus capturados na planície de inundação do alto rio Paraná. O material utlizado foi obtido através de desova induzida. A espécie apresentou ovos grandes, adesivos e com membrana dupla. Período de incubação longo (65 horas a 27°C). As larvas são bem desenvolvidas no momento da eclosão, apresentando desenvolvimento larval relativamente rápido. A análise dos dados morfométricos revela que P. galeatus apresenta crescimento proporcional das partes do corpo.Palavras-chave: descrição morfológica, Parauchenipterus galeatus, larvas e juvenis, planície de inundação, rio Paraná.

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“…Little is known about the embryonic development of neotropical fish species, except for a few studies such as those carried out by Cardoso et al (1995), Ribeiro et al (1995), Andrade-Talmelli et al (2001), Luz et al (2001), Ganeco (2003) and Ninhaus-Silveira et al (2006b).…”

Section: Introductionmentioning

confidence: 99%

Structural analysis of the embryonic development inBrycon cephalus(Günther, 1869)

Alexandre

Ninhaus‐Silveira

Veríssimo‐Silveira

et al. 2009

Zygote

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SummaryThe embryogenesis of Brycon cephalus was established in seven stages: zygote, cleavage, blastula, gastrula, segmentation, larval and hatching, in an incubation period of 11 h (26 • C). The zygote phase was observed directly after fertilization and egg hydration. Cleavage began at 0.5 h of incubation and extended up to the morula phase (1.5 h; +100 blastomeres). Cleavage was meroblastic and underwent the following division pattern: the first five divisions were vertical and perpendicular to each other, following the model 2 × 2, 4 × 2, 4 × 4 and 4 × 8. The sixth division was horizontal and occurred at 1.25 h after fertilization, giving rise to two cell layers (4 × 8 × 2) with 64 blastomeres. At the blastula stage (1.25-1.5 h), an irregular space between the blastomeres, the blastocoele, could be detected and the periblast structure initiated. The gastrula (1.75-6.0 h) was characterized by the morphogenetic movements of epiboly, convergence and cell involution, and formation of the embryonic axis. The segmentation stage (7-9 h) comprised the development of somites, the notochord, optic, otic and Kupffer's vesicles, neural tube, primitive intestine and ended with the release of the tail. The larval stage (up to 10 h) was characterized by the presence of 30 somites and growth and elongation of the larvae. At the hatching stage, the embryos presented more than 30 somites and exhibited swimming movements and a soft chorion. The blastomeres presented euchromatic nuclei, indicating a high mitotic activity and many yolk globules in the cytoplasm. The periblast was constituted of a layer with several nuclei and many vesicles, which grew during the epiboly movement.

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Embryogenesis of the neotropical freshwater SiluriformePseudoplatystoma coruscans

Abstract: Embryogenèse du silure neotropical d'eau douce Pseudoplatystoma coruscansAquat. Living Resour.

Cited by 40 publications

References 8 publications

Brycon gouldingi(Teleostei, Characidae): aspects of the embryonic development in a new fish species with aquaculture potential

Brycon gouldingi(Teleostei, Characidae): aspects of the embryonic development in a new fish species with aquaculture potential

Morphological description of the developmental stages of Parauchenipterus galeatus (Linnaeus, 1766) (Siluriformes, Auchenipteridae) on the floodplain of the upper Paraná River

Structural analysis of the embryonic development inBrycon cephalus(Günther, 1869)

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