Results 121 to 130 of about 8,813 (222)
Variaciones de la abundancia de peces del valle del rio Parana (Argentina) [PDF]
L'abondance et la répartition des poissons dans le Parana sont influencées par les facteurs de l'environnement comme la géomorphologie et les crues exceptionnelles. En aval de la confluence du Parana et du Paraguay, de même que dans la basse vallée de ce
Oldani, N.O.
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Details of migration dynamics of Neotropical fishes are poorly understood. This study aimed to examine upstream (spawning) and downstream (post-spawning) migration speeds, of curimatá-pioa (Prochilodus costatus) in the São Francisco River basin ...
João de Magalhães Lopes +3 more
doaj +1 more source
Ictiólogos de la Argentina : Sara Beatríz Sverlij [PDF]
Fil: López, Hugo Luis. División Zoología Vertebrados. Facultad de Ciencias Naturales y Museo. Universidad Nacional de La Plata; ArgentinaFil: Padin, Oscar Horacio. División Zoología Vertebrados. Facultad de Ciencias Naturales y Museo.
López, Hugo Luis +2 more
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Transmission Behavior of B Chromosomes in Prochilodus lineatus (Characiformes, Prochilodontidae).
The population of Prochilodus lineatus found in the Mogi-Guaçu River is karyotypically polymorphic, carrying acrocentric, metacentric, and submetacentric B chromosomes. The analysis of each B chromosome frequency in this species revealed a variation in the distribution pattern, with the metacentric type having the highest frequency (73.30%), followed ...
Penitente, Manolo +4 more
openaire +3 more sources
Ninety-six-hour static bioassays were conducted in the laboratory to determine lethal concentrations (96-h LC50) of copper and cadmium for curimatã (Prochilodus vimboides) and piauçu (Leporinus macrocephalus). The 96-h LC50 of copper were 0.047 and 0.090
Levy Carvalho Gomes +4 more
doaj
Ictiologos de la Argentina: Sara Beatriz Sverlij [PDF]
This series will include all those people who, by means of their contributions, great and small, played a part in the consolidation of ichthyology in Argentina.
López, Hugo Luis +2 more
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Management of the first food of bocachico (Prochilodus magdalenae)
In the Centro de Investigación Piscícola de la Universidad de Córdoba were two experiments. In the first experiment was conducted to investigate the effects of different preys to first feeding on bocachico (Prochilodus magdalenae) larviculture. The onset feeding bocachico post-larvae stocked into aquarium at density 50/L, were fed at 5 Prey/mL during ...
Atencio-García, Víctor +3 more
openaire +1 more source
Implications of differences between temperate and tropical freshwater ecosystems for the ecological risk assessment of pesticides [PDF]
Despite considerable increased pesticide use over the past decades, little research has been done into their fate and effects in surface waters in tropical regions.
Brink, P.J., van den, Daam, M.A.
core +2 more sources
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Voltolin, Tatiana Aparecida +5 more
openaire +4 more sources
Liste commentée des poissons de l'Amazonie bolivienne [PDF]
Après une brève présentation de l'Amazonie bolivienne, des milieux prospectés, de l'effort de pêche, des travaux anciens et récents, les auteurs founissent une liste commentée des poissons rencontrés.
Lauzanne, Laurent +2 more
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