Results 61 to 70 of about 1,800 (195)

Ocean warming and novel species interactions boost growth and persistence of range‐extending tropical fishes but challenge that of sympatric temperate species in temperate waters

open access: yesJournal of Biogeography, Volume 51, Issue 11, Page 2243-2258, November 2024.
Abstract Aim Climate change can have a broad range of impacts on the physiology and behaviour of animals. These effects can be mediated by the presence of other species in the community, but current forecasts of species responses to climate change largely ignore biological interactions.
Minami Sasaki   +3 more
wiley   +1 more source

Induction of hepatic enzymes and oxidative stress in Chinese rare minnow (Gobiocypris rarus) exposed to waterborne hexabromocyclododecane (HBCDD) [PDF]

open access: yes, 2008
The objective of this study was to evaluate the sub-lethal toxicity of hexabromocyclododecane (HBCDD) in fish. Adult Chinese rare minnows as in vivo models were exposed to waterborne HBCDD from 1 to 500 mu g/l for 14, 28 and 42 days.
Liao, Tao   +7 more
core   +1 more source

Morphological and molecular identification of geophagus sveni lucinda, lucena & assis, 2010 (Cichlidae, cichliformes) from the paraná river basin, Argentina [PDF]

open access: yes, 2018
During 2015, we collected several specimens of a cichlid tentatively assigned to Geophagus in Yacyretá reservoir in the Paraná river basin (Argentina). By means of morphological and molecular evidence, we identified these specimens as Gephagus sveni, a ...
Aichino, Danilo Ramon   +3 more
core   +1 more source

Effects of short‐ and long‐term enrichment on brain and behavior in Trinidadian guppies

open access: yesEthology, Volume 130, Issue 3, March 2024.
Environmental enrichment often alters behavior in captive animals. Here, we exposed guppies either to short‐term (two week) or long‐term (birth through 12 weeks) enrichment and measured growth, brain size, and neophobic behaviors. Females responded more strongly overall to enrichment in both short‐ and long‐term.
R. Quinn Iffert, Laura R. Stein
wiley   +1 more source

Variação sazonal dos metazoários parasitos de Geophagus brasiliensis (Perciformes: Cichlidae) no rio Guandu, Estado do Rio de Janeiro, Brasil = Seasonal variation of metazoan parasites of Geophagus brasiliensis (Perciformes: Cichlidae) from the Guandu river, State of Rio de Janeiro, Brazil

open access: yesActa Scientiarum: Biological Sciences, 2010
O presente trabalho estuda a variação sazonal dos metazoários parasitos de Geophagus brasiliensis do rio Guandu, Estado do Rio de Janeiro, Brasil. Para isso foram realizadas quatro coletas trimestrais de 50 espécimes de G.
Adriano Reder de Carvalho   +2 more
doaj  

Endohelmintos parasitos de 16 espécies de Cichlidae da Bacia do Igarapé Fortaleza, Macapá, Estado do Amapá, Brasil. [PDF]

open access: yes, 2017
ENBRAPOA
BITTENCOURT, L. S.   +5 more
core  

Induced CYP1A activity and DNA damage in fish from the middle Paraíba do Sul River basin, southeastern Brazil

open access: yesActa Scientiarum: Biological Sciences, 2018
The Paraíba do Sul River (PSR) drainage basin in Southeastern Brazil covers one of the most industrialized and densely populated regions of the country. The impact of chemical contamination on the PSR basin seems to be more pronounced in its middle reach
Claudio Nona Morado   +4 more
doaj   +1 more source

Les stratégies de reproduction et les premiers stades de vie des poissons du fleuve Sinnamary (Guyane française) : une revue bibliographique [PDF]

open access: yes, 1994
Le barrage hydro-électrique de Petit-Saut, construit par Electricité de France sur le fleuve Sinnamary en Guyane française, a été fermé en janvier 1994. Cet ouvrage a profondément modifié un milieu dont les éléments avaient co-évolué depuis de nombreuses
Ponton, Dominique, Tito de Morais, Luis
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

Metazoan parasites of Geophagus proximus, a Cichlidae fish from the Eastern Amazon (Brazil). [PDF]

open access: yes, 2017
The present study investigated the fauna of metazoan parasites of a Geophagus proximus population from the lower Tapajós River, in the state of Pará, northern Brazil. A total of 137 monogeneans were collected from the gills of G.
BRITO, L. S.   +4 more
core   +1 more source

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