Parâmetros reprodutivos do curimbatá no rio Mogi-Guaçu

Ramos, Roseli Ormanezi; Peret, Alberto Carvalho; Ramos, Sergio Moreira; Melo, Jose Savio

doi:10.1590/s0034-737x2010000400013

Cited by 5 publications

(3 citation statements)

References 10 publications

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“…Migratory behaviour of P. corruscans in the Lower Paraná basin involves short‐distance movement of adults in the main river channel during the feeding season from February to September (Resende, 2003). Long‐distance migration upriver to the spawning areas, following shoals of migrating P. lineatus which comprise their main food source, occurs from October to January (Ramos et al ., 2010). After reproduction, adults migrate downstream, whereas juveniles drift into floodplain habitats and stay for some time until they reach adult size.…”

Section: Discussionmentioning

confidence: 99%

Genetic population structure of Pseudoplatystoma corruscans (Siluriformes: Pimelodidae) and evidence of temporal variation in structure

Rueda

Machado

Castro

et al. 2023

Journal of Fish Biology

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Surubim (Pseudoplatystoma corruscans, Pimelodidae) are migratory catfish native to the rivers in the La Plata and São Francisco basins. They are piscivores that attain considerable body sizes and are a valuable economic resource. Surubim exhibits extensive migrations during its life cycle that may affect the population structure at vast geographic scales. The authors examined the genetic diversity and population genetic structure of P. corruscans using microsatellite markers from a comprehensive sampling of 260 individuals from the Upper and Lower Paraná River. They identified two well-differentiated genetic clusters corresponding to a natural geographic barrier historically separating Upper and Lower Paraná regions. They also demonstrated temporal variation in population genetic structure at a site in Lower Paraná close to the confluence with the Paraguay River, most likely explained by the influx of migrant fishes at certain times of the year.

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Section: Discussionmentioning

confidence: 99%

Genetic population structure of Pseudoplatystoma corruscans (Siluriformes: Pimelodidae) and evidence of temporal variation in structure

Rueda

Machado

Castro

et al. 2023

Journal of Fish Biology

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“…It can also be inferred that this high value of copper concentration may be related to the feeding of the animals that in the dry season is higher due to the fact that the individuals are present at the place [3]. The fact that this species also has a permanent population close to the Cachoeira de Emas dam [23], may be one of the explanations for this high concentration of copper, which concentrate this element through food and gills [14].…”

Section: Discussionmentioning

confidence: 99%

Evaluation of Trace Elements in Prochilodus lineatus (Valenciennes, 1837) (Characiformes, Prochilodontidae) from the Mogi Guaçu River Infected for Acanthocephala Neoechynorhyncus Curemai Noronha, 1973 (Acanthocephala)

Reis¹,

Campos²,

Ueta³

et al. 2017

J Environ Anal Toxicol

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“…Moreover, the efficacy of the techniques that enable the isolation of testicular components (particularly type A spermatogonia), can only be assessed upon the knowledge of the composition of intact testes. According to Ramos et al (), because certain characteristics of type A spermatogonia are linked to this particular species of teleost, quantitative data can be used to provide a more complete understanding of these cells. Therefore, the morphological, morphometric, and stereological results of this study of type A spermatogonia contribute to a better understanding of the reproductive biology of P. lineatus .…”

Section: Discussionmentioning

confidence: 99%

Spermatogonia, Germline Cells, and Testicular Organization in the Characiform Prochilodus lineatus Studied Using Histological, Stereological, and Morphometric Approaches

Dias

Cassel

Jesus

et al. 2016

The Anatomical Record

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Prochilodus lineatus is an important representative of the order Characiformes and a species that offers great advantages to fish farming. Therefore, detailed knowledge of its reproductive biology can be applied to various fields of production and biotechnology. In this study, we have identified testicular germ cells during spermatogenesis and have evaluated the volumetric proportion of the testes occupied by structures of the tubular and intertubular compartments. In addition, the individual volume of type A spermatogonia was measured and used to estimate the mean number of these cells per testis. Gonads of adult P. lineatus males were extracted and fixed. Light and transmission electron microscopy were applied to fragments of three testicular regions. Histological, stereological, and morphometric analyses were performed. The stereological data suggest that components of the tubular and intertubular compartments of the P. lineatus testes present a uniform distribution in all three regions and therefore reflect regions with similar distributions of cell types. In addition, P. lineatus testes showed ∼0.6% of type A spermatogonia, as well as a predominance of cysts of primary spermatocytes and spermatids during the reproductive phase evaluated. The results from this study provide a better understanding of the morphology and structure of the testis and of the characterization of the type A spermatogonia in P. lineatus. The nuclear diameter of germ cells also decreases significantly during spermatogenesis. The data presented herein are the first of its kind for the order Characiformes and may be useful for future biotechnology studies on fish reproduction. Anat Rec, 300:589-599, 2017. © 2016 Wiley Periodicals, Inc.

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Parâmetros reprodutivos do curimbatá no rio Mogi-Guaçu

Cited by 5 publications

References 10 publications

Genetic population structure of Pseudoplatystoma corruscans (Siluriformes: Pimelodidae) and evidence of temporal variation in structure

Genetic population structure of Pseudoplatystoma corruscans (Siluriformes: Pimelodidae) and evidence of temporal variation in structure

Evaluation of Trace Elements in Prochilodus lineatus (Valenciennes, 1837) (Characiformes, Prochilodontidae) from the Mogi Guaçu River Infected for Acanthocephala Neoechynorhyncus Curemai Noronha, 1973 (Acanthocephala)

Spermatogonia, Germline Cells, and Testicular Organization in the Characiform Prochilodus lineatus Studied Using Histological, Stereological, and Morphometric Approaches

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