Characterization of the early development of Pseudoplatystoma reticulatum Eigenmann &amp; Eigenmann, 1889 (Siluriformes: Pimelodidae) from the Paraguay River Basin

Andrade, Fernanda Freitas; Lima, Ariane Furtado de; Assumpção, Lucileine de; Makrakis, Sérgio; Kasai, Rodrigo I. D.; Makrakis, Maristela Cavicchioli

doi:10.1590/1982-0224-20150032

Cited by 14 publications

(11 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In addition to black stripes and spots, the skin pattern of Pseudoplatystoma is characterised by the presence of thin white vertical lines (which sometimes have a dendritic configuration), which occur in a number of 10–15 in the lateral area of the fish. In all Pseudoplatystoma species, the formation of a clear horizontal mid line in the horizontal myoseptum is observed 33 , 34 , which would form the main pre-pattern in similar way to what occurs in the zebra fish 8 . These vertical lines begin to grow from this clear horizontal bar in dorsal direction, and become evident when the fish reach 10 or 15 cm.…”

Section: Resultssupporting

confidence: 52%

Universal model for the skin colouration patterns of neotropical catfishes of the genus Pseudoplatystoma

Scarabotti

Govezensky

Bolcatto

et al. 2020

Sci Rep

View full text Add to dashboard Cite

Fish skin colouration has been widely studied because it involves a variety of processes that are important to the broad field of the developmental biology. Mathematical modelling of fish skin patterning first predicted the existence of morphogens and helped to elucidate the mechanisms of pattern formation. The catfishes of the genus Pseudoplatystoma offer a good biological study model, since its species exhibit the most spectacular and amazing variations of colour patterns on the skin. They present labyrinths, closed loops (or cells), alternate spots and stripes, only spots and combinations of these. We have extended a well known mathematical model to study the skin of Pseudoplatystoma . The basic model is a two component, non-linear reaction diffusion system that presents a richness of bifurcations. The extended model assumes that there are two interacting cell/tissue layers in which morphogens diffuse and interact giving rise to the skin colouration pattern. We have found that by varying only two parameters we are able to accurately reproduce the distinct patterns found in all species of Pseudoplatystoma . The histological analysis of skin samples of two species of this genus, with different patterns, revealed differences on the disposition of the colouration cells that are consistent with our theoretical predictions.

show abstract

Section: Resultssupporting

confidence: 52%

Universal model for the skin colouration patterns of neotropical catfishes of the genus Pseudoplatystoma

Scarabotti

Govezensky

Bolcatto

et al. 2020

Sci Rep

View full text Add to dashboard Cite

show abstract

“…The larvae of L. marmoratus , in the first stage (yolk) after hatching, were poorly developed, with 2.16 mm ± 0.48 of standard length, and could therefore be considered as “altricial.” According to Fuiman (), altricial larvae are those poorly developed at hatching, presenting small size and body transparency. In comparison, the larvae of other species of Pimelodidae, such as Pseudoplatystoma fasciatum , 3.01 mm (Pérez, Bocanegra, & Orbe, ), P. corruscans , 2.69 mm (Nakatani et al, ), Pimelodus maculatus (Luz, Reynalte‐Tataje, Ferreira, & Zaniboni‐Filho, ), Rhamdia quelen 2.93 mm (Nakatani et al, ), P. reticulatum 3.05 mm (Andrade et al, ), larvae of L. marmoratus were on average smaller.…”

Section: Discussionmentioning

confidence: 99%

“…The total number of myomers varied from 49 to 56, presenting a slight overlap with P. corruscans with 45 to 50 myomers (Nakatani et al, ), Sorubim cf . lima with 48 to 52 (Nakatani et al, ), Hemisorubim platyrhynchos with 40 to 46 (Andrade et al, ) and P. reticulatum with 45 to 50 (Andrade et al, ).…”

Section: Discussionmentioning

confidence: 99%

“…Each species exhibits distinct pigmentation patterns, which are genetically defined, varying in number, location, shape and melanophores size (Kendall et al, ). The pigmentation pattern shortly after hatching, such as body transparency and chromatophore concentrates in anterior and posterior regions of the yolk sac is a type of standardization that seems to be present in several species of Pimelodidade family ( H. platyrhynchos, Pseudoplatystoma coruscans, P. Reticulatum, P. maculatus ) (Andrade et al, ; Nakatani et al, ), making it difficult to differentiate at this stage of development when it occurs at the same watershed. From the post‐flexion stage, when the pigmentation intensifies, it is possible to visualize more distinct species patterns, which allow the differentiation in relation to other species.…”

Section: Discussionmentioning

confidence: 99%

“…Despite the large number of freshwater teleost species currently known, few studies address ontogenetic aspects. Being the surveys more focused on evolutionary, ecological or descriptive aspects for several fish species from different watersheds (Andrade et al, ; Arashiro et al, ; Assega, Birindelli, Bialetzki, & Shibatta, ; Bialetzki et al, ; Costa & Neto, ; Faustino, Makino, Neumann, & Nakaghi, ; Gavaia, Dinis, & Cancela, ; Honji, Tolussi, Mello, Caneppele, & Moreira, ; Maciel, Júnior, Donzele, Lanna, & Menin, ; Miquelarena, Ortubay, & Cussac, ; Suzuki & Pompeu, ; Vrtílekv & Reichard, ; Zacardi, Silva, Bittencourt, Costa, & Nakayama, ). Thus, there is a gap regarding the ontogenetic aspects of these species, which is a fundamental knowledge as a support for taxonomic and fisheries biology studies.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Characterization of the initial ontogeny ofLeiarius marmoratus(GILL, 1870): larvae to juvenile

et al. 2019

View full text Add to dashboard Cite

Summary Aiming to provide data on the biology of Leiarius marmoratus, which will aid in its production in captivity, as well as in studies for its preservation in the environment, this work had as objectives: analyze and describe main morphological alterations during larval ontogeny of the species. We analyzed 205 individuals, obtained by induced reproduction (Colpani Pisciculture) and kept in CEPTA/ICMBIO, Pirassununga, São Paulo, Brazil. Analyses were performed from hatching moment to 30th day. The specimens were classified into two periods: larval (Stages: vitelline, pre‐flexion, flexion, post‐flexion) and juvenile. Hatched larvae showed ident chromatophores only at anterior and posterior extremities of yolk sac. The standard length ranged from 2.16 mm (yolk) to 28.84 mm (Youth). Dorsal fin rays were initially observed at flexion stage (12–14 rays). Major alterations occurred during post‐flexion/juvenile stage, when dorsal, pectoral, pelvic, anal, and caudal fins were observed and pigmentation intensified throughout the lateral region, forming bands in the body, one between the end of the head and beginning of dorsal to pelvic fin, and another one beginning at dorsal to caudal peduncle and four longitudinal at the head.

show abstract

Importance of a turbulent river section below a giant waterfall for fish spawning: Indications from drift and dispersion patterns of early life stages

et al. 2021

Self Cite

View full text Add to dashboard Cite

Seasonal drift patterns of fish eggs and larvae were analysed along the river section downstream the Iguaçu River Falls to the confluence with Paraná River, over three spawning seasons. This river section is situated in a narrow rocky canyon characterized by a steep slope, which leads to highly turbulent and fast flowing conditions in a series of rapids. Water transit time in this river stretch of 20 km was short (5–11 h), the flow‐velocity in rapids can reach values of more than 6 m s−1. Densities of drifting eggs and larvae varied between three spawning seasons, and differences of eggs were more pronounced compared to larvae. Eggs and larvae were observed all along the river section. A spatial, longitudinal distribution pattern of larvae was found, with higher numbers in the upper section. A distinct spatial sequence of different embryonic stages was observed, with the highest abundance of early stages. Larval densities were low in comparison to egg densities, and preflexion and flexion stages predominated. High abundance of buoyant eggs in drift indicates fish spawning in rapid and turbulent waters of the Iguaçu River, particularly downstream from the Iguaçu Falls. Rainfall and turbidity may be the main trigger for spawning. Spawned eggs drifted quickly towards the confluence, most are likely to hatch in the Paraná River, while larvae disperse to nursery habitats even in the river section below the falls. Thus, inshore zones along the whole stretch provide nursery habitats for larval development of fish species exhibiting different reproductive strategies.

show abstract

Characterization of the early development of Pseudoplatystoma reticulatum Eigenmann & Eigenmann, 1889 (Siluriformes: Pimelodidae) from the Paraguay River Basin

Cited by 14 publications

References 24 publications

Universal model for the skin colouration patterns of neotropical catfishes of the genus Pseudoplatystoma

Universal model for the skin colouration patterns of neotropical catfishes of the genus Pseudoplatystoma

Characterization of the initial ontogeny ofLeiarius marmoratus(GILL, 1870): larvae to juvenile

Importance of a turbulent river section below a giant waterfall for fish spawning: Indications from drift and dispersion patterns of early life stages

Contact Info

Product

Resources

About