The catfish distributions sticky

For the discussion of catfish systematics. Post here to draw our attention to new publications or to discuss existing works.
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Taxonomic revision of the Southernmost population of Hypostomus commersoni

Post by bekateen »

Bertora, A., Grosman, M. F., Sanzano, P. M., Cardoso, Y. P., & Rosso, J. J. (2018). Taxonomic revision of the Southernmost population of Hypostomus commersoni Valenciennes, 1836 (Siluriformes: Loricariidae) and comments on dispersal routes. Historia Natural, Series 3, 8(1): 2018/25-34

Bertora, A., Grosman, M. F., Sanzano, P. M., Cardoso, Y. P., & Rosso, J. J. (2018). Revision taxonómica de las poblaciones más australes de Hypostomus commersoni Valenciennes, 1836 (Siluriformes: Loricariidae) y comentarios sobre las vías de dispersión. Historia Natural, Series 3, 8(1): 2018/25-34

https://ri.conicet.gov.ar/handle/11336/87492
PDF: https://ri.conicet.gov.ar/bitstream/han ... sAllowed=y

New location reported: 36°55’38.66”S,58°56’8.70”W
Abstract
Hypostomus is one of the most diverse genus of South American freshwater catfishes. In Argentina, Hypostomus commersoni Valenciennes, 1836 is distributed throughout the major river networks of the La Plata River basin and in the Pampa Plain. The recent record of H. commersoni in the Langueyú stream, represents the southernmost occurrence for this species and highlights the role of Samborombón bay as a likely dispersal route. It also supports the role of artificial channels in the translocation of freshwater fauna. In this study, a taxonomic revision of H. commersoni from the Langueyú stream was performed and aspects about ichthyofauna dispersal routes are discussed. The taxonomy of populations in the extreme of the species’ distribution range contributes with information about geographic variation of characters.
  • Key words: Hypostominae, distribution, La Plata River basin, taxonomy, Langueyú stream.
Resumen.
Hypostomus es uno de los géneros más diversos de peces de agua dulce de Sudamérica. En Argentina, Hypostomus commersoni Valenciennes, 1836 se distribuye a lo largo de las principales redes de ríos de la cuenca del río de la Plata y en la llanura Pampeana. El reciente registro de H. commersoni en el arroyo Langueyú, representa la ocurrencia más austral de esta especie y destaca el papel de la bahía de Samborombón como probable ruta de dispersión. También apoya el rol de los canales artificiales en la translocación de la fauna de agua dulce. En este estudio se realiza una revisión taxonómica de H. commersoni del arroyo Langueyú y se discuten aspectos sobre las rutas de dispersión de la ictiofauna. La taxonomía de las poblaciones en los extremos del rango de distribución de las especies contribuye con información sobre la variación geográfica de los caracteres.
  • Palabras clave: Hypostominae, distribución, cuenca del Río de La Plata, taxonomía, arroyo
    Langueyú.
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Re: The catfish distributions sticky

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Frota, A., Ota, R. R., Deprá, G. D. C., Ganassin, M. J. M., & Graça, W. J. D. (2020). A new inventory for fishes of headwater streams from the rio das Cinzas and rio Itararé basins, rio Paranapanema system, Paraná, Brazil. Biota Neotropica, 20(1). http://dx.doi.org/10.1590/1676-0611-bn-2019-0833

Cetopsorhamdia iheringi
Imparfinis borodini
Imparfinis mirini
Phenacorhamdia tenebrosa
Rhamdia Quelen * I did not add this location to the R. quelen CLOG because that species is so muddled, I imagine it's quite likely the ID is incorrect.
Cambeva davisi
Cambeva diabola
Cambeva Iheringi
Corydoras(ln6) ehrhardti
Hypostomus ancistroides
Hypostomus hermanni
Hypostomus iheringii
Hypostomus strigaticeps
Hypostomus tietensis
Neoplecostomus selenae
Otothyropsis biamnicus

ABSTRACT:

The Rio das Cinzas and Itararé basins are important tributaries of the Paranapanema river, the major left-bank tributary of the upper Paraná basin. The upper reaches of both drainages intersect the northern portion of the APA Devonian Escarpment Environment Protection Area (EPA), an area considered crucial for the preservation of biodiversity. This study aimed to provide an ichthyofaunistic inventory for headwater streams of the Rio das Cinzas and Itararé basins, both within and off the borders of the EPA, increasing the knowledge about species already known from streams in the Paranapanema river system. We found 32 fish species, representing five orders and 12 families. Siluriformes was the richest order followed by Characiformes. Ten species presented high abundance of sampled individuals, contributing with 85. 0% of all specimens. Most species were classified as occasional (captured in less than 25% of samples) and only two species were classified as constant (captured in more than 50% of samples), which may reflect the altitudinal gradient. We did not record any introduced species in the sampled streams, reinforcing the need for at least maintaining the original area of ​​the EPA. We expanded the geographic distribution of Astyanax bifasciatus to the upper Paraná River system, confirming the cases of faunal exchange among several drainage systems in the boundaries of the Ponta Grossa Arch. Finally, we identified three putatively undescribed species that show a large biodiversity knowledge shortfall for the region studied.
  • Keywords: Altitudinal gradient; Devonian Escarpment; faunal exchange; upper rio Paraná
Attachments
Screenshot_20191222-095726_Chrome~2.jpg
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Re: The catfish distributions sticky

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Martine, G. (2019). Distribuição do ictioplâncton em diferentes micro-habitats do médio Rio Uruguai, Brasil. Dissertação de Mestrado, Programa de Pós Graduação em Ambiente e Tecnologias Sustentáveis da Universidade Federal da Fronteira Sul.
https://rd.uffs.edu.br/handle/prefix/3098
PDF: https://rd.uffs.edu.br/bitstream/prefix ... ARTINE.pdf

Ichthyoplankton of the middle Rio Uruguay basin:

Parapimelodus valenciennis
Pimelodus maculatus
Iheringichthys labrosus
Luciopimelodus pati
Pimelodus maculatus
Pseudoplatystoma corruscans
Sorubim lima
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Re: The catfish distributions sticky

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Terán, G. E., Aguilera, G., Díaz, F. R., Koerber, S., & Mirande, J. M. (2020). First record of Hypostomus roseopunctatus (Siluriformes: Loricariidae) for Argentina. Ichthyological Contributions of PecesCriollos, 65: 1-4. available as pdf-file at www.pecescriollos.de since 23.Mar.2020

https://media.hotelwebservice.com/media ... entina.pdf
Abstract
In this note we expand the known distributional range of Hypostomus roseopunctatus to the political boundaries of Argentina. The sole specimen was obtained in the Miriñay River, Uruguay River basin, province of Corrientes. With this record the number of Hypostomus species known from Argentina raises to 26.
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Pylodictis olivaris in Canada

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Illes, C., Colm, J. E., Mandrak, N. E., & Marson, D. M. (2020). Flathead Catfish (Pylodictis olivaris) reproduction in Canada. The Canadian Field-Naturalist, 133(4), 372-380.

https://www.canadianfieldnaturalist.ca/ ... /view/2323

DOI: http://dx.doi.org/10.22621/cfn.v133i4.2323
Abstract

Eleven Flathead Catfish (Pylodictis olivaris), representing at least five age classes, were collected between 2016 and 2018 in the lower Thames River, Ontario, Canada. The capture of two juveniles (total lengths 78 mm and 82 mm), the first records of juveniles in Canada, is a strong indication that reproduction has occurred. Previous records were thought to be individuals that dispersed from known populations in American waters of Lake Erie. Flathead Catfish is currently designated as data deficient by the Committee on the Status of Endangered Wildlife in Canada. These new findings may provide sufficient data to reconsider the conservation status of this species.
  • Keywords: Flathead Catfish; Pylodictis olivaris; reproduction; Great Lakes; Lake St. Clair; Thames River; juvenile; young- of-year
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Ageneiosus ucayalensis in the municipality of Viana, state of Maranhão, Brazil

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Coelho, AV, de Oliveira, CA, FREITAS, J., Figueiredo, MB, & de Almeida, ZDS RECORDS OF Ageneiosus ucayalensis (CASTELNAU, 1855), (OSTEICHTHYES: AUCHENIPTERIDAE), IN THE MUNICIPALITY OF VIANA, STATE OF MARANHÃO, BRAZIL. RECORDS OF Ageneiosus ucayalensis (CASTELNAU, 1855), (OSTEICHTHYES: AUCHENIPTERIDAE), IN THE MUNICIPALITY OF VIANA, STATE OF MARANHÃO, BRAZIL , 1-388.

https://www.atenaeditora.com.br/post-artigo/14706
ABSTRACT:

Viana is a municipality located in the micro region of Maranhão Lowlands, state of Maranhão. The Ageneiosus ucayalensis species is commonly known as mandubé, it is a freshwater fish of Siluriformes Order and commonly captured in the Baixada Maranhense. The specimens were captured by trawls with mesh sizes nets numbers 05, 06, 08, 09 and 10, in two localities of the municipality, Rio Maracu and Lago de Viana, between September 2014 and August 2015. A total of 71 individuals were captured throughout the study. In the Lake of Viana were captured 42 and in the River Maracu 29 individuals. In the month of December the largest number of specimens was obtained, in total there were 23 specimens, followed by March (13) and February (12). The distribution of the relative frequency of specimens by Total Length classes showed that the number of individuals was highest in the range of class comprising 12 to 14 cm. The average size was 14.07 cm. Currently, there is a growing concern for the preservation of these ecosystems and their species, since they serve food for riverside communities. This work, together with other studies on Ageneiosus ucayalensis species may delineate safe actions in the sustainable use of water resources in the region.
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Otothyropsis piribebuy in the Rio Tererê, Rio Paraguay basin, Brazil

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Hocama, G. S., de Oliveira Martins, F., & Severo-Neto, F. (2020). First record and extended distribution of Otothyropsis piribebuy (Loricariidae: Hypoptopomatinae) in Brazil. Papéis Avulsos De Zoologia, 60, e20206021. DOI: https://doi.org/10.11606/1807-0205/2020.60.21.

https://www.revistas.usp.br/paz/article/view/162087
ABSTRACT
Cascudinhos are a group of small benthic fishes included in the Hypoptopomatinae subfamily, inhabiting small to moderate streams and rivers within the Neotropical region, from Venezuela to Northern Argentina. Until now, Otothyropsis piribebuy originally described from the rio Paraguay basin, in Paraguay, is the only species of the genus not recorded in Brazil. Recent samples in the rio Tererê, rio Paraguay basin, Brazil, revealed a population of Otothyropsis with uncertain taxonomic identity. Therefore, the study aimed to unveil the distribution of Otothyropsis within Brazilian territory. External morphology, osteology, measurements, and counts (plates, teeth, and rays) of these specimens from rio Tererê were compared to data from the original description of O. piribebuy, and also with specimens of O. piribebuy sampled in Paraguayan territory. Observations indicated no differences among the analyzed specimens. Furthermore, a Principal Component Analysis (PCA), carried out using log-transformed measures from Brazilian and Paraguayan specimens, showed no separation of these populations, also indicating that all analyzed specimens pertain to the same species. Based on this, a prediction map of distribution, using Maximum Entropy, was produced. The correct identification of spatial range of occurrence is an essential step to ensure the conservation of species, and the extended distribution of Otothyropsis piribebuy was confirmed, enhancing the list of neotropical fish from Brazil.
Attachments
Figure 1. Distribution of Otothyropsis piribebuy within the rio Paraguay basin. Star = holotype; square = paratype; triangle = non-type, from Paraguay. Circles = new occurrence in Brazil.
Figure 1. Distribution of Otothyropsis piribebuy within the rio Paraguay basin. Star = holotype; square = paratype; triangle = non-type, from Paraguay. Circles = new occurrence in Brazil.
Figure 2. Otothyropsis piribebuy, nontype, first record in Brazilian territory, ZUFMS 5796, 23.8 mm SL, female, Rego d’Água, Porto Murtinho, Mato Grosso do Sul, Brazil.
Figure 2. Otothyropsis piribebuy, nontype, first record in Brazilian territory, ZUFMS 5796, 23.8 mm SL, female, Rego d’Água, Porto Murtinho, Mato Grosso do Sul, Brazil.
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Re: Taxonomic revision of the Southernmost population of Hypostomus commersoni

Post by Donovan05 »

bekateen wrote:
Wed Nov 06, 2019 12:03 am
Bertora, A., Grosman, M. F., Sanzano, P. M., Cardoso, Y. P., & Rosso, J. J. (2018). Taxonomic revision of the Southernmost population of Hypostomus commersoni Valenciennes, 1836 (Siluriformes: Loricariidae) and comments on dispersal routes. Historia Natural, Series 3, 8(1): 2018/25-34

Bertora, A., Grosman, M. F., Sanzano, P. M., Cardoso, Y. P., & Rosso, J. J. (2018). Revision taxonómica de las poblaciones más australes de Hypostomus commersoni Valenciennes, 1836 (Siluriformes: Loricariidae) y comentarios sobre las vías de dispersión. Historia Natural, Series 3, 8(1): 2018/25-34

https://ri.conicet.gov.ar/handle/11336/87492
PDF: https://ri.conicet.gov.ar/bitstream/han ... sAllowed=y

New location reported: 36°55’38.66”S,58°56’8.70”W
Abstract
Hypostomus is one of the most diverse genus of South American freshwater catfishes. In Argentina, Hypostomus commersoni Valenciennes, 1836 is distributed throughout the major river networks of the La Plata River basin and in the Pampa Plain. The recent record of H. commersoni in the Langueyú stream, represents the southernmost occurrence for this species and highlights the role of Samborombón bay as a likely dispersal route. It also supports the role of artificial channels in the translocation of freshwater fauna. In this study, a taxonomic revision of H. commersoni from the Langueyú stream was performed and aspects about ichthyofauna dispersal routes are discussed. The taxonomy of populations in the extreme of the species’ distribution range contributes with information about geographic variation of characters.
transfers reims
  • Key words: Hypostominae, distribution, La Plata River basin, taxonomy, Langueyú stream.
Resumen.
Hypostomus es uno de los géneros más diversos de peces de agua dulce de Sudamérica. En Argentina, Hypostomus commersoni Valenciennes, 1836 se distribuye a lo largo de las principales redes de ríos de la cuenca del río de la Plata y en la llanura Pampeana. El reciente registro de H. commersoni en el arroyo Langueyú, representa la ocurrencia más austral de esta especie y destaca el papel de la bahía de Samborombón como probable ruta de dispersión. También apoya el rol de los canales artificiales en la translocación de la fauna de agua dulce. En este estudio se realiza una revisión taxonómica de H. commersoni del arroyo Langueyú y se discuten aspectos sobre las rutas de dispersión de la ictiofauna. La taxonomía de las poblaciones en los extremos del rango de distribución de las especies contribuye con información sobre la variación geográfica de los caracteres.
  • Palabras clave: Hypostominae, distribución, cuenca del Río de La Plata, taxonomía, arroyo
    Langueyú.

Hola, gracias por esta información, especialmente los datos de contacto. estas son cosas muy útiles

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bekateen
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Re: Taxonomic revision of the Southernmost population of Hypostomus commersoni

Post by bekateen »

Donovan05 wrote:
Tue Jun 30, 2020 9:55 pm
Hola, gracias por esta información, especialmente los datos de contacto. estas son cosas muy útiles
De nada. :-)
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