Results 71 to 80 of about 12,726 (225)

Fator de Condição e ciclo gonadal de fêmeas de Pimelodus maculatus(Osteichthyes, Pimelodidae) no rio piracicaba (SP, Brasil)

open access: yesBoletim do Instituto de Pesca, 2018
Os objetivos deste trabalho são descrever a variação sazonal do Fator de Condição de Pimelodus maculatus no Rio Piracicaba (SP) e verificar se o ciclo sazonal de desenvolvimento ovariano exerce alguma influência significativa sobre a variação desse í ...
Sidnei Eduardo Lima-Junior   +1 more
doaj  

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  

Auditory evoked potential audiometry in fish [PDF]

open access: yes, 2013
© The Author(s), 2013. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Reviews in Fish Biology and Fisheries 23 (2013): 317-364, doi:10.1007/s11160-012-9297-z.A recent ...
Fay, Richard R., Ladich, Friedrich
core   +1 more source

Crescimento de Pimelodus maculatus (Actinopterygii, Pimelodidae) estocados em diferentes densidades em tanques-rede

open access: yesBiotemas, 2011
O estudo teve por objetivo avaliar a in?uência das densidades 8, 32, 56 e 80 peixes/m3 sobre o crescimento de Pimelodus maculatus (mandi-amarelo) em tanques-rede de 1m3 instalados em viveiro de terra de 0,19ha, sem renovação de água, localizado em uma propriedade particular em Santo Amaro da Imperatriz, Santa Catarina.
Almeida, Saula Corrêa Afonso de   +1 more
openaire   +4 more sources

Influence of cage farming on feeding and reproductive aspects of Pimelodus maculatus Lacépède, 1803 (Siluriformes: Pimelodidae) in the Chavantes reservoir, Brazil - doi: 10.4025/actascibiolsci.v36i1.

open access: yes, 2014
This study evaluated the diet and reproductive aspects of the population of Pimelodus maculatus around net cage fish farming in order to assess the possible impacts of this activity.
H. Brandão   +3 more
semanticscholar   +1 more source

Fauna de parasitos metazoários de Pimelodus maculatus La Cépède, 1803 (Siluriformes, Pimelodidae) do rio Guandu, Estado do Rio de Janeiro, Brasil - DOI: 10.4025/actascibiolsci.v29i1.130

open access: yesActa Scientiarum: Biological Sciences, 2007
Sessenta espéimes de Pimelodus maculatus provenientes do rio Guandu, Estado do Rio de janeiro, foram examinados para estudo de sua parasitofauna, no perído de agosto de 1999 a fevereiro de 2001.
Michelle Daniele dos Santos   +2 more
doaj   +1 more source

Bibliografía de los peces de agua dulce de Argentina. Suplemento : Suplemento 1996-2002 [PDF]

open access: yes, 2003
Fil: López, Hugo Luis. División Zoología Vertebrados. Facultad de Ciencias Naturales y Museo. Universidad Nacional de La Plata; ArgentinaFil: Menni, Roberto Carlos. División Zoología Vertebrados. Facultad de Ciencias Naturales y Museo.
López, Hugo Luis   +2 more
core  

Ictiofauna da bacia do Rio Jacaré-Guaçu, bacia do Alto Rio Paraná [PDF]

open access: yes, 2011
This study aimed to evaluate the fish fauna composition and distribution in different environments, up- and downstream the Gavião Peixoto Dam, in the Jacaré-Guaçu River basin.
ARCIFA, Marlene Sofia   +1 more
core   +2 more sources

Bibliografía de los peces de agua dulce de la Argentina Suplemento 1996-2002. [PDF]

open access: yes, 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
core  

Reynolds shear-stress and velocity: positive biological response of neotropical fishes to hydraulic parameters in a vertical slot fishway

open access: yesNeotropical Ichthyology
The barriers created by dams can cause negative impacts to aquatic communities, and migratory fish species are directly affected. Fishways have been developed to allow the upstream passage of fishes through dams.
Bernardo Alan de Freitas Duarte   +2 more
doaj   +1 more source

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