Neotropical fish
Effects of biodegradable detergents in the accumulation of lipofuscin (age pigment) in gill and liver of two neotropical fish species
... SUMMARY: Currently there is a growing concern, in both population and governments, to identify the effects of substances commonly disposed of into rivers and lakes, on aquatic fauna and flora. Thus the objective of the ...
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Effect of anesthetic, tag size, and surgeon experience on postsurgical recovering after implantation of electronic tags in a neotropical fish: Prochilodus lineatus (Valenciennes, 1837) (Characiformes: Prochilodontidae)
... tagged fish had some complication following ...in fish implanted with large tags. Therefore, 35% of fish with large tags presented a surgery ...tagged neotropical fish in the wild ...
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Integrated biomarker response index using a Neotropical fish to assess the water quality in agricultural areas
... on fish, a method that combines different biomarker responses into an index named “integrated biomarker response” (IBR) was applied using the biological alterations in the Neotropical fish Astyanax ...
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Swimming performance of the migratory Neotropical fish
... on fish migration have been proposed and implemented, such as the construction of ...facilitate fish moving through it without excessive ...However, neotropical fish are different from those ...
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ACUTE MORPHOLOGICAL AND PHYSIOLOGICAL EFFECTS OF LEAD IN THE NEOTROPICAL FISH Prochilodus lineatus
... native fish species have been employed in toxicity tests in ...of Neotropical fish species to chemicals that are potential pollutants in tropical freshwater ...on fish from tropical, boreal ...
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The effect of structural enrichment in hatchery tanks on the morphology of two neotropical fish species
... stocked fish and to increase the post-release survival rate, environmental enrichment of fish-farming tanks has been proposed by several researchers, however, fish behavior has been the main trait ...
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Selectivity of fish ladders: a bottleneck in Neotropical fish movement
... Dezenas de escadas de peixes foram construídas em barragens de reservatórios brasileiros, mas são raros os estudos acerca de suas eficiências como instrumentos de conservação da ictiofauna Neotropical, em especial ...
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Surprising genomic diversity in the Neotropical fish Synbranchus marmoratus (Teleostei: Synbranchidae): how many species?
... these data were not collected with this complexity in mind, we cannot attempt to answer the question of how many species, but we suggest that it is at least five, based on karyotypes (Fig. 4). Also, based on the data ...
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Hydropeaking effects of on the diet of a Neotropical fish community
... tropical fish, differences in the abundance of food between the dry and rainy seasons directly affect these ...for fish with specialized feeding habits (Hahn & Fugi, 2007), in general, freshwater ...
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Taxonomy and phylogeny of the neotropical fish genus Hemibrycon Günther, 1864 (Ostariophysi: Characiformes: Characidae)
... Dorsal body profile convex from nostril to dorsal-fin origin, slightly concave in supraocciptal spine; posteroventrally slanted at dorsal-fin base; straight from last dorsal-fin ray to[r] ...
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Development of the digestive system in larvae of the Neotropical fish Prochilodus argenteus (Characiformes, Prochilodontidae)
... RESUMO. O presente estudo teve como objetivo acompanhar o desenvolvimento do sistema digestório em larvas do peixe Neotropical Prochilodus argenteus utilizando-se análises histológicas. No terceiro dia após a ...
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Culverts in paved roads as suitable passages for Neotropical fish species
... the fish species in Neotropical rivers and streams, mostly of small-sized species, and especially the high abundance of Siluriformes (catfishes and armored catfishes locally known as ‘mandis’, ‘bagres’, and ...
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Can DNA barcoding accurately discriminate megadiverse Neotropical freshwater fish fauna?
... freshwater fish faunas ...other Neotropical fish ...the Neotropical ichthyofauna, could potentially pose a barrier to the use of barcoding (due the possible shared ...
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Editorial
... on fish genetics appeared as a nat- ural consequence of the state of art presently exhibited by this area in our ...of fish species started only about forty years ago, the interest in this area can be ...
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Water temperature affects aggressive interactions in a Neotropical cichlid fish
... social Neotropical fish, Cichlasoma paranaense Kullander, 1983, to better understand how individuals cope with changes in the abiotic and social ...a fish from the Cichlidae family, comprised by ...
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Reynolds shear-stress and velocity: Positive biological response of neotropical fishes to hydraulic parameters in a vertical slot fishway
... migratory fish species are directly ...different neotropical fishes in some Brazilian fishways, and the main challenge has been to promote upstream passage of a large number of diverse fish ...the ...
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Social and reproductive physiology and behavior of the Neotropical cichlid fish Cichlasoma dimerus under laboratory conditions
... the Neotropical fish Cichlasoma dimerus (Heckel, 1840) [Perciformes: Cichlidae], endemic to the Paraná River basin, using a comprehensive-integral approach, including morphological and physiological ...
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Assessing fish assemblages similarity above and below a dam in a Neotropical reservoir with partial blockage
... traditional fish ways that facilitate upriver migrations, here we examine a fish passage which probably allows only downriver ...the fish assem- blages differ between these two zones (reservoir ...on ...
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Environmental heterogeneity explains species turnover but not nestedness in fish assemblages of a Neotropical basin
... of fish diversity in a Neotropical basin: 1) whether some regions contribute differently to fish diversity, and 2) whether species turnover and nestedness are explained by environmental ...of ...
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Contribution of conservation genetics in assessing neotropical freshwater fish biodiversity
... fragmentation can lead to the total or partial isolation of a population, conditioning the response of the indi- viduals. Some authors have described chromosomal dif- ferences between populations in a single hydrographic ...
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