Fishes Movements
Mostrando 1-6 de 6 artigos, teses e dissertações.
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1. Upstream and downstream migration speed of Prochilodus costatus (Characiformes: Prochilodontidae) in upper São Francisco basin, Brazil
RESUMO Detalhes acerca da dinâmica migratória de peixes neotropicais são pouco conhecidos. O objetivo deste estudo foi analisar as velocidades em migração ascendente (reprodutiva) e descendente (pós-reprodutiva) da curimatá-pioa (Prochilodus costatus) no rio São Francisco, Brasil. A migração ascendente concentrou-se nos meses de outubro e novembro,
Neotrop. ichthyol.. Publicado em: 18/07/2019
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2. Fish metacommunity structure in Caño Maraca, an important nursery habitat in the Western Llanos of Venezuela
ABSTRACT We investigated spatial and seasonal variation of fish assemblages of Caño Maraca, a creek in Venezuela’s Western Llanos, a region with strong wet-dry seasonality. Fishes were surveyed over a 19-year period at three sites along the longitudinal gradient: a headwater site with a narrow channel, a middle site with shallow channels traversing a seas
Neotrop. ichthyol.. Publicado em: 06/12/2018
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3. Reproduction, feeding and migration patterns of Prochilodus nigricans (Characiformes: Prochilodontidae) in northeastern Ecuador
ABSTRACT The black prochilodus, Prochilodus nigricans, is an important food fish distributed throughout aquatic habitats of the Ecuadorian Amazon. We sampled gonad weight, body condition, and feeding of this species to address the question of whether changes in these biological parameters are related to hydrological variation and migration patterns. High fre
Neotrop. ichthyol.. Publicado em: 05/10/2017
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4. Genetic variability of two populations of Pseudoplatystoma reticulatum from the Upper Paraguay River Basin
Catfishes of the genus Pseudoplatystoma are very important species due to both their high commercial value and their ecological role as voracious predators. They undertake lengthy migratory movements during their life-cycle, this including reproductive migration which occurs from October to December in the rainy season. In the present study, seven microsatel
Genetics and Molecular Biology. Publicado em: 18/09/2009
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5. VariaÃÃo espaÃo-temporal das espÃcies da famÃlia Ariidae (Siluriformes) no EstuÃrio do Rio Goiana (PE / PB â Brasil)
The objective of this study was to describe the seasonal variation of the species of the Ariidae Family (biomass and density) in relation to the variables space and time, in the estuary of Goiana River Estuary (NE/Brazil). From December of 2005 to November of 2006, two hundred and sixteen samples were taken representing a total sampled area of 23ha. About 60
Publicado em: 2008
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6. Estrutura da comunidade e alimentação dos peixes da Baia da Onça, uma lagoa do pantanal do rio Aquidauana, MS
Bala da Onça is a perennial oxbow lake by the Aquidauana River. The lake is connected to the river in the beginning of the flood season (late December) and cut off from it around the months of April or May. There were 75 fish species caught in experimental fishery with a purse seine and a drag seine during the period (July-December 1988), when the lake was
Publicado em: 1992