Results 41 to 50 of about 2,822 (144)
European Journal of Taxonomy, 2018 The Astyanax orthodus species-group includes nine species: Astyanax boliviensis sp. nov., A. bopiensis nom. nov., A. embera sp. nov., A. gandhiae sp. nov., A. moorii comb. nov., A. orthodus, A. superbus, A. villwocki and A. yariguies comb. nov. The group
Raquel I. Riuz-C +4 more
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Fishes from Chira River basin, Piura, Peru
Revista Peruana de Biología, 2022 Chira River is located on the north coast of Peru. The lack of knowledge of the ichthyofauna from coastal drainages from Peru is noteworthy. The aim of this study is to characterize the ichthyofauna along the Chira River basin in terms of diversity and ...
Vanessa Meza-Vargas +4 more
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Journal of Fish Biology, EarlyView.Abstract A new species of the small‐sized armoured catfish genus Neoplecostomus is described from Neotropical Atlantic coastal drainages, in southeast Brazil. The new species can be readily diagnosed from all congeners by having the first plates of the ventral series reduced in size, rounded and ventrally displaced, resulting in a naked band between ...
Pedro L. C. Uzeda +5 more
wiley +1 more source
Revista Mvz Cordoba, 2019 Objective. Describe the endocrine response associated with the reproduction of a tropical potamodromous fish under changes in the flow discharge produced by hydropower in an Andean. Materials and methods.
Daniela De Fex-Wolf +2 more
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Journal of Fish Biology, EarlyView.Abstract Pyrrhulina australis Eigenmann & Kennedy, 1903, is widely distributed across the main hydrographic basins of South America. The taxonomic integrity of this species is nevertheless challenged by the lack of clear diagnostic characters, its marked geographic variation and the morphological overlap with its congeners. In this context, the present
Taina Barbosa De Souza +6 more
wiley +1 more source
Biota Colombiana, 2018 Actualmente, sólo se han registrado 20 especies de peces para el río Casanare, uno de los principales afluentes de la cuenca del río Meta. Con el fin de caracterizar los ensamblajes de peces de este río, se realizaron muestreos en 35 estaciones de ...
Jhon Zamudio +4 more
doaj +3 more sources
Revista Peruana de Biología, 2011 En el presente trabajo se aplican índices biológicos de calidad ambiental y conservación, basados en el monitoreo biológico realizado entre año 2003 y 2009, en cinco localidades del río Bajo Urubamba.
Hernán Ortega +3 more
doaj +1 more source
A bristle‐nosed Jurassic ray‐finned fish (Actinopterygii) bears true dermal odontodes on its snout
Journal of Anatomy, EarlyView.Teeth show extreme diversity, including tooth‐like dermal odontodes or “skin teeth” in many extant fishes. We describe the anatomy of enlarged tubercles on the snout of Redfieldius, an extinct early Jurassic fish. We found that the tubercles in Redfieldius are dermal odontodes that evolved independently from those of living species. Abstract Comparison
Jack Stack +2 more
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, 2012 Jornadas Ibéricas de Ictiología (4es: 2012: Girona)Recull d'articles de les IV Jornades Ibèriques d'Ictiologia, celebrades a Girona del 17 al 20 de juliol de ...
Sociedad Ibérica de Ictiología +1 more
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Freshwater Biodiversity Research in Brazil: Trends from a Systematic Review and Topic Modeling
International Review of Hydrobiology, Volume 111, Issue 2, December 2026.ABSTRACT Brazil is a megadiverse country that hosts six major biomes and a vast freshwater network. Despite this richness, research on freshwater biodiversity has been heterogeneous across regions, communities, and time, leaving significant knowledge gaps.
Paula Caroline dos Reis Oliveira +24 more
wiley +1 more source