102 research outputs found
CLOFFAR - update 3 - supplement to Checklist of the Freshwater Fishes of Argentina
In May 2016 we have published the second update to CLOFFAR and in these few months a total of 22 changes have summed up. The total number of fishes known from the freshwaters of Argentina has increased to 538, caused by one new Hoplias and 13 first records. Four new combinations and four synonymizations do not have influence on the total count. The paper of most importance in quantity without doubt is the one of Casciotta et al. on their findings in the Iguazú National Park, unfortunately also including two first records of exotic introduced species, Clarias gariepinus and Geophagus brasiliensis. Clarias gariepinus was included in this update against our standard to only recognize records which have been published based on voucher material. In this case the determination could undoubtfully be done based on a photo and this invasive species has been reported before from the lower Iguazú river in Brazil in 2012 already. The confirmation of Crenicichla iguassuensis has undergone some see-saw development in the past and the respective remarks can be found when following the link. Also another publication needs to be commented on: The synonymyzations of four rivulids by Calviño has been published as an isolated statement beyond any systematical context. Nevertheless, it has been formally published and in some of these cases the probability of being synonyms had been stated previously by other authors. Future will show the resilience and acceptance of those synonymizations. The paper of Ortà et al. dates from 2008 and was simply not known to us before and thus, the new combination of Myloplus tiete from Myleus is only included now, eigth years later.Fil: Koerber, Stefan. Gesellschaft für Ichthyolgie; AlemaniaFil: Litz, Thomas O.. Gesellschaft für Ichthyolgie; AlemaniaFil: Mirande, Juan Marcos. Consejo Nacional de Investigaciones CientÃficas y Técnicas. Centro CientÃfico Tecnológico - Tucumán. Unidad Ejecutora Lillo; Argentin
Checklist of the Freshwater Fishes of Argentina (CLOFFAR)
The purpose of this paper is to present an updated list of freshwater fishes found in Argentina based on the available literature. Since the last list was published in 2003, most systematical and distributional changes were presented on www.pecescriollos.de and updates have been published frequently. In only 12 years the number of species reported from Argentina has increased from 379 to 515 and the mentioned accumulative updates at the end had reached 15 pages, becoming a little bit complex and cluttered when used as supplements to the list published by López et al. (2003). After receiving several incitements we finally decided to review the available data and elaborate the present contribution. As usual in the past years already, we will continue to frequently publish updates, offering the possibility to keep updated on the species of freshwater fishes from Argentina.Fil: Mirande, Juan Marcos. Consejo Nacional de Investigaciones CientÃficas y Técnicas; Argentina. Fundación Miguel Lillo; ArgentinaFil: Koerber, Stefan
On some species of Astyanax reported erroneously from Argentina
Several species of Astyanax have been reported from Argentina which currently are considered not to be distributed so far South or whose identity as Astyanax is doubtful. These records have been copied during decades based on historic accounts or erroneous determination. We conclude that Astyanax bimaculatus, A. fasciatus, A. paranahybae, A. scabripinnis, and A. taeniatus shall be excluded from the faunal lists of Argentina and, at least in the case of A. fasciatus, also of Uruguay.Varias especies de Astyanax han sido reportadas para Argentina, de las que actualmente no se considera que estén distribuidas tan al sur o cuya identidad en Astyanax es dudosa. Estos registros han sido repetidos durante décadas basándose en cuestiones históricas o identificaciones erróneas. Nosotros concluimos que Astyanax bimaculatus, A. fasciatus, A. paranahybae, A. scabripinnis y A. taeniatus deberÃan ser excluidas de las listas de fauna de Argentina y, al menos en el caso de A. fasciatus, también de Uruguay.Fil: Mirande, Juan Marcos. Consejo Nacional de Investigaciones CientÃficas y Técnicas; Argentina. Fundación Miguel Lillo; ArgentinaFil: Koerber, Stefan
First record of the banjo catfish Bunocephalus doriae Boulenger 1902 (Siluriformes: Aspredinidae) in the Bermejo River basin, Salta, Argentina
Intense sampling in the upper Bermejo River basin revealed the presence of specimens of the aspredinid genus Bunocephalus. After detailed morphological and morphometric analyses specimens were identified as Bunocephalus doriae. This is the first record of any member of the Aspredinidae in the upper Bermejo River basin.Fil: Aguilera, Gaston. Consejo Nacional de Investigaciones CientÃficas y Técnicas. Centro CientÃfico Tecnológico - Tucumán. Unidad Ejecutora Lillo. San Miguel de Tucumán; Argentina. Fundación Miguel Lillo; ArgentinaFil: Teran, Guillermo Enrique. Consejo Nacional de Investigaciones CientÃficas y Técnicas. Centro CientÃfico Tecnológico - Tucumán. Unidad Ejecutora Lillo. San Miguel de Tucumán; Argentina. Fundación Miguel Lillo; ArgentinaFil: Alonso, Felipe. Consejo Nacional de Investigaciones CientÃficas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; ArgentinaFil: Mirande, Juan Marcos. Consejo Nacional de Investigaciones CientÃficas y Técnicas. Centro CientÃfico Tecnológico - Tucumán. Unidad Ejecutora Lillo. San Miguel de Tucumán; Argentina. Fundación Miguel Lillo; Argentin
First record of Astyanax puka Mirande, Aguilera & Azpelicueta, 2007 (Teleostei: Characidae) in Juramento River basin, Salta, Argentina
Astyanax puka was described from the endorheic RÃo Salà basin, Argentina, and it was not previously recorded elsewhere, being considered until now as endemic from that basin. Herein we record for the first time this species in the RÃo Juramento basin, RÃo de La Plata system.Fil: Teran, Guillermo Enrique. Consejo Nacional de Investigaciones CientÃfico y Técnicas. Centro CientÃfico Tecnológico Tucumán. Unidad Ejecutora Lillo; ArgentinaFil: Aguilera, Gaston. Consejo Nacional de Investigaciones CientÃfico y Técnicas. Centro CientÃfico Tecnológico Tucumán. Unidad Ejecutora Lillo; ArgentinaFil: Mirande, Juan Marcos. Consejo Nacional de Investigaciones CientÃfico y Técnicas. Centro CientÃfico Tecnológico Tucumán. Unidad Ejecutora Lillo; Argentin
CLOFFAR - update 1 - supplement to Checklist of the Freshwater Fishes of Argentina
Despite the fact that this first update of CLOFFAR contains 15 changes, the number of species has increased by only 4. The main driver for the recent changes is the paper of Thomaz et al., proposing 8 new combinations for stevardiine characiforms. In addition, 2 new Crenicichla and first records for a tachuela, a pejerrey, and a heptapterid have been published. The latter also resulted in the negative account for another heptapterid, erroneously determined before, increasing the number of freshwater fish species known from Argentina to 519.Fil: Koerber, Stefan.Fil: Litz, Thomas O..Fil: Mirande, Juan Marcos. Consejo Nacional de Investigaciones CientÃficas y Técnicas; Argentina. Fundación Miguel Lillo; Argentin
Geographic variation of Moenkhausia bonita (Characiformes: Characidae) in the rio de la Plata basin, with distributional comments on M. intermedia
Moenkhausia bonita es registrada en numerosas localidades adicionales de las cuencas de los rÃos Bermejo, Paraná, Paraguay, y Uruguay. Dado que estos hallazgos expanden ampliamente el rango distribucional de M. bonita, nosotros llevamos a cabo una comparación intraespecÃfica, usando métodos multivariados para 18 caracterÃsticas morfométricas y 8 merÃsticas que fueron tomados en una muestra exhaustiva de 536 especÃmenes. Todas las localidades fueron repartidas en cuatro grupos principales como sigue: Bermejo, Paraná, Paraguay y Uruguay. Los resultados de las comparaciones morfométricas mostraron diferencias significativas a través de los grupos bajo estudio, excepto entre los grupos Paraguay y Uruguay. Diferencias estadÃsticas fueron encontrados en la mayorÃa de las comparaciones entre los grupos, especialmente en aquellas obtenidas de los análisis discriminantes canónicos (ADC). Los especÃmenes de la cuenca del Bermejo fueron encontrados como el grupo más divergente en la mayorÃa de las comparaciones morfológicas. No obstante, estas leves diferencias encontradas en la morfologÃa del cuerpo son consideradas dentro de la variación intraespecÃfica de M. bonita y parecen estar influidas por caracterÃsticas ambientales y espaciales de los drenajes. Dado que M. bonita fue previamente identificada como M. intermedia en la cuenca del rÃo de La Plata, comentarios distribucionales sobre esta última especie en esta cuenca son presentados.Moenkhausia bonita occurs in numerous additional localities from the Bermejo, Paraná, Paraguay, and Uruguay river basins. Given that this finding greatly expands the distributional range of M. bonita, we carried out an intraspecific comparison, using multivariate methods for 18 morphometric and eight meristic characters taken from a comprehensive sample of 536 specimens. All localities were distributed in four major geographic groups as follows: Bermejo, Paraná, Paraguay, and Uruguay. Results of the morphometric comparisons showed significant differences among the studied groups except between the Paraguay and Uruguay groups. Statistical differences in meristic values were found for most between-group comparisons, especially in those resulting from discriminant canonical analyses (DCA). Specimens from the Bermejo basin were the most distinct group in most morphological comparisons. However, the overall subtle differences found in body morphology likely reflect intraspecific variation within M. bonita and seem to be mainly influenced by spatial and environmental features of drainages. As M. bonita was previously identified as M. intermedia in the rÃo de La Plata basin, distributional comments on the latter species in that basin are provided.Fil: Vanegas Rios, James Anyelo. Consejo Nacional de Investigaciones CientÃficas y Técnicas; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División ZoologÃa de Vertebrados; ArgentinaFil: Britzke, Ricardo. Universidad Técnica de Machala; Ecuador. Universidade Estadual Paulista Julio de Mesquita Filho; BrasilFil: Mirande, Juan Marcos. Consejo Nacional de Investigaciones CientÃficas y Técnicas. Centro CientÃfico Tecnológico - Tucumán. Unidad Ejecutora Lillo; Argentina. Fundación Miguel Lillo; Argentin
First record of Steindachnerina insculpta (Fernández-Yépez, 1948) (Characiformes, Curimatidae) in Argentina
Recent expeditions to northwestern Argentina revealed the presence of an unknown species of Curimatidae for the Bermejo river basin. The morphometric and meristic analyses of these specimens allow us to identify them as Steindachnerina insculpta (Fernández-Yépez, 1948), which is here reported for the first time in Argentina.Fil: Aguilera, Gaston. Fundación Miguel Lillo; Argentina. Consejo Nacional de Investigaciones CientÃficas y Técnicas; ArgentinaFil: Teran, Guillermo Enrique. Fundación Miguel Lillo; Argentina. Consejo Nacional de Investigaciones CientÃficas y Técnicas; ArgentinaFil: Alonso, Felipe. Consejo Nacional de Investigaciones CientÃficas y Técnicas. Centro CientÃfico Tecnológico Conicet - Salta. Instituto de Bio y Geociencias del NOA. Universidad Nacional de Salta. Facultad de Ciencias Naturales. Museo de Ciencias Naturales. Instituto de Bio y Geociencias del NOA; ArgentinaFil: Mirande, Juan Marcos. Fundación Miguel Lillo; Argentina. Consejo Nacional de Investigaciones CientÃficas y Técnicas; Argentin
Who's behind those red eyes? The Moenkhausia oligolepis group in Argentina (Characiformes: Characidae)
The history of red-eyed Moenkhausia in Argentina dates back to 1937 when Meinken mentioned M.sanctaefilomenae for the first time based on specimens received from Corrientes. Meinken?s lot stillexists in the ichthyological collection in Berlin and based on this material and preserved specimensfrom other collection we can confirm that from the species group of the red-eyed Moenkhausia so faronly M. australis and M. forestii have been collected in Argentina, while the records of M.sanctaefilomenae must be considered erroneous.Fil: Mirande, Juan Marcos. Consejo Nacional de Investigaciones CientÃficas y Técnicas. Centro CientÃfico Tecnológico - Tucumán. Unidad Ejecutora Lillo; Argentina. Fundación Miguel Lillo. Dirección de ZoologÃa. Instituto de Vertebrados. Sección IctiologÃa; ArgentinaFil: Koerber, Stefan. Kca, Grupo de Estudio del Killi Club Argentino; ArgentinaFil: Teran, Guillermo Enrique. Consejo Nacional de Investigaciones CientÃficas y Técnicas. Centro CientÃfico Tecnológico - Tucumán. Unidad Ejecutora Lillo; Argentina. Fundación Miguel Lillo. Dirección de ZoologÃa. Instituto de Vertebrados. Sección IctiologÃa; ArgentinaFil: Aguilera, Gaston. Fundación Miguel Lillo. Dirección de ZoologÃa. Instituto de Vertebrados. Sección IctiologÃa; Argentina. Consejo Nacional de Investigaciones CientÃficas y Técnicas. Centro CientÃfico Tecnológico - Tucumán. Unidad Ejecutora Lillo; Argentin
First record of Aphyocharax anisitsi Eigenmann & Kennedy, 1903 in the upper Bermejo River basin, northwestern Argentina
Aphyocharax anisitsi es registrado por primera vez en la Cuenca alta del RÃo Bermejo, Argentina, en las provincias de Salta y Jujuy. Esto representa una extensión de la distribución conocida de aproximadamente 600 km. Además, se cita material de colección de A. dentatus para el área por primera vez.Aphyocharax anisitsi is recorded for the first time from the upper Bermejo River, Argentina, in the provinces of Salta and Jujuy. This represents a range extension of the known distribution of approximately 600 km. Also, collection specimens of A. dentatus from this area are cited for first time.Fil: Teran, Guillermo Enrique. Consejo Nacional de Investigaciones CientÃficas y Técnicas. Centro CientÃfico Tecnológico - Tucumán. Unidad Ejecutora Lillo. San Miguel de Tucumán; ArgentinaFil: Alonso, Felipe. Consejo Nacional de Investigaciones CientÃficas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales ; ArgentinaFil: Aguilera, Gaston. Consejo Nacional de Investigaciones CientÃficas y Técnicas. Centro CientÃfico Tecnológico - Tucumán. Unidad Ejecutora Lillo. San Miguel de Tucumán; ArgentinaFil: Mirande, Juan Marcos. Consejo Nacional de Investigaciones CientÃficas y Técnicas. Centro CientÃfico Tecnológico - Tucumán. Unidad Ejecutora Lillo. San Miguel de Tucumán; Argentin
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