Results 71 to 80 of about 12,679 (227)
Aquaculture, Fish and Fisheries, Volume 5, Issue 6, December 2025.Abstract Zootechnical additives are widely used in animal diets to enhance health and performance throughout different production stages. This study evaluated the effects of a blend of synbiotic and organic acids on Nile tilapia fingerlings. The investigation assessed growth performance, enzyme activity, proximate composition, and tissue histology.
Dacley Neu +9 more
wiley +1 more source
Neotropical IchthyologyAstyanax eremus, a new species of geographically isolated characid fish, is described from a small tributary of the upper rio Iguaçu basin. The new species belongs to the Astyanax scabripinnisspecies complex and is easily distinguished from its congeners
Leonardo F. S. Ingenito, Luiz F. Duboc
doaj +1 more source
Acta Scientiarum: Biological Sciences, 2008 Garutti (1995) fez a revisão de algumas espécies de Astyanax (Osteichthyes, Characidae) e aquela, conhecida como “tambiú” na bacia do alto rio Paraná, anteriormente identificada como Astyanax bimaculatus, foi considerada nova e posteriormente descrita ...
Weferson Júnio da Graça +1 more
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Ecology and Evolution, Volume 15, Issue 12, December 2025.Karst regions exhibit ecologically fragile environments but host a rich diversity of microhabitats across spatial scales. Vegetation productivity and carbon sequestration patterns are intricately governed by subterranean microhabitat conditions. Microhabitat‐based technologies demonstrate transformative potential in reconciling human livelihoods with ...
Hui Huang +4 more
wiley +1 more source
Neotropical IchthyologyTwo new Astyanax species, A. vermilion, from rio Almada and rio Cachoeira, and A. burgerai, from rio Almada, Bahia State, Brazil, are described. Astyanax vermilion is distinguished from most of its congeners and from all other Astyanax species known from
Angela M. Zanata, Priscila Camelier
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Memorias do Instituto Oswaldo Cruz, 1988 A new species of Urocleidoides, U. astyanacis (Monogenea, Ancyrocephalinae) is described from the "lambari" Astyanax scabripinnis (Jenyns, 1842) and A. fasciatus (Cuvier, 1819).
Ismael Gioia +2 more
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Astyanax surface and cave fish morphs
EvoDevo, 2020 The small teleost fish Astyanax mexicanus has emerged as an outstanding model for studying many biological topics in the context of evolution. A major attribute is conspecific surface dwelling (surface fish) and blind cave dwelling (cavefish) morphs that
William R. Jeffery
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Brain Transcriptomics Reveals Molecular Mechanisms of Cave Adaptation in Triplophysa Loaches
Ecology and Evolution, Volume 15, Issue 12, December 2025.This study compares brain transcriptomes of cave (Triplophysa shilinensis) and surface‐dwelling (T. xiangshuingensis) loaches to uncover molecular adaptations to subterranean life. We identified widespread gene down‐regulation in the cave ecotype, with enriched pathways in energy metabolism, circadian rhythms, sensory perception, and body coloration ...
Chunqing Li +4 more
wiley +1 more source
Nuevo hospedador de Lernaea cf. cyprinacea (L.) (Copepoda: Lernaeidae) en Argentina [PDF]
, 2014 Se registra por primera vez a Lernaea cf. cyprinacea (L.), copépodo ectoparásito en Astyanax hermosus Miquelarena, Protogino y López, 2005 (Teleostei: Characiformes: Characidae). El hospedador fue capturado en el río Cosquín (Depto.
Ramallo, Geraldine +1 more
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Bibliografía de los peces de agua dulce de la Argentina Suplemento 1996-2002. [PDF]
, 2003 Between 1981 and 1995, we published five bibliographic lists (López et al., 1981, 1982,1987, 1989 y 1995) that included the publications referred to Argentine freshwater fishes and related general information published since Ringuelet et al. (1967).
Battistoni, Patria A. +3 more
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