Results 41 to 50 of about 860 (154)

Population biology of dominant fish species of the Santa Bárbara river, a tributary of the Nova Avanhandava reservoir (low Tietê river, São Paulo State, Brazil) - DOI: 10.4025/actascibiolsci.v31i1.650

open access: yesActa Scientiarum: Biological Sciences, 2009
The aim of this study is to characterize some population biology parameters of P. squamosissimus, A. altiparanae and S. maculates, the dominant fish species of the Santa Bárbara river, a tributary of the Nova Avanhandava reservoir, low Tietê river.
Ana Paula Vidotto, Edmir Daniel Carvalho
doaj   +1 more source

Comunidades de peixes da RPPN Sesc Pantanal. [PDF]

open access: yes, 2019
As comunidades de peixes ao longo de 74,75 km do rio Cuiabá e áreas circundantes, na Reserva Particular do Patrimônio Natural SESC Pantanal foram estudadas quanto à composição, diversidade, riqueza, constância de ocorrência e abundância de espécies. Para
MARQUES, D. K. S., RESENDE, E. K. de
core  

Length‒Weight and Length‒Length Relationships of Freshwater Fish Species Caught by Professional Fishermen in the Itaipu Reservoir, Brazil

open access: yesJournal of Applied Ichthyology, Volume 2025, Issue 1, 2025.
Length‒weight relationships (LWRs) and length‒length relationships (LLRs) were estimated for 63 and 58 freshwater fish species, respectively, captured in the Itaipu Reservoir, Paraná River Basin, Paraná State, Brazil. Sampling was carried out from March 1987 to July 2024 at 63 professional fishing sites within the reservoir’s area of influence ...
Éder André Gubiani   +7 more
wiley   +1 more source

Reproductive strategies and genetic variability in tropical freshwater fish

open access: yesGenetics and Molecular Biology, 2007
We estimated the genetic variability of nine fish species from the Brazilian upper Paraná River floodplain (Astyanax altiparanae, Hoplias malabaricus, Leporinus lacustris, Loricariichthys platymetopon, Parauchenipterus galeatus, Pimelodus maculatus ...
Maria Dolores Peres Lassala   +1 more
doaj   +1 more source

Lista de peces de la provincia de Entre Ríos [PDF]

open access: yes, 2013
Fil: Arias, José D.. Facultad de Ciencia y Tecnología. Universidad Autónoma de Entre Ríos; ArgentinaFil: Demonte, Lucio D.. Facultad de Humanidades y Ciencias. Universidad Nacional del Litoral; ArgentinaFil: Miquelarena, Amalia María.
Arias, José D.   +4 more
core  

Diet and feeding of fish from Grande River, located below the Volta Grande Reservoir, MG-SP Dieta e alimentação de peixes no rio Grande, a jusante da barragem de Volta Grande, MG/SP

open access: yesBrazilian Journal of Biology, 2005
We compare the classic model of feeding of tropical fish by means of six bimonthly samplings using gillnets of varying mesh sizes that were inspected every twelve hours throughout a forty-eight hour period. The stomachs of the fish caught were classified
P. M. Andrade, F. M. S. Braga
doaj   +1 more source

Cambios estacionales de la densidad de peces en una laguna del valle aluvial del rio Parana (Argentina) [PDF]

open access: yes, 1988
En aval du confluent du Parana et du Paraguay, les nombreuses espèces de poissons présentes (dont beaucoup d'intérêt commercial) accomplissent des migrations complexes, latérales et longitudinales, encore inexpliquées.
Oldani, N.O.   +3 more
core  

Ichthyofaunistic composition of the Quilombo river, tributary of the Mogi-Guaçu river, upper Paraná river basin, southeastern Brazil [PDF]

open access: yes
Um estudo sobre a composição ictiofaunística do rio Quilombo foi realizado com o intuito de identificar quais espécies de peixes habitam a bacia, com que freqüência tais espécies são encontradas e verificar variações na distribuição longitudinal desta ...
APONE, Fernando   +2 more
core   +1 more source

Seasonal variation in the diet of Lontra longicaudis in the Paraná River basin, Argentina [PDF]

open access: yes, 2014
We studied the Neotropical otter ( Lontra longicaudis ) seasonal diet variations in the middle Paran á River valley, in central-northern Argentina, at the southern limit of its global range.
Eberhardt, María Ayelen Teresita   +4 more
core   +1 more source

Parasitism by argulids (Crustacea: Branchiura) in piranhas (Osteichthyes: Serrasalmidae) captured in the Caiçara bays, upper Paraguay River, Pantanal, Mato Grosso state, Brazil

open access: yesNeotropical Ichthyology, 2012
In this study, 446 fishes were analyzed: 190 Pygocentrus nattereri, 193 Serrasalmus maculatus, and 63 S. marginatus.They were captured in two bays, upper and lower Caiçara, in the upper Paraguay River basin, during one hydrological cycle from May 2008 to
Márcio Fontana   +3 more
doaj  

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