Results 21 to 30 of about 85 (70)

Determinantes ambientais da ocorrência de espécies de peixes em riachos de cabeceira da bacia do rio Ivinhema, alto rio Paraná = Environmental determinants of fish species occurrence in headwaters streams of Ivinhema river basin, upper Paraná river

open access: yesActa Scientiarum: Biological Sciences, 2007
Com o objetivo de quantificar a importância de algumas característicasfisiográficas dos riachos sobre a ocorrência de quatro espécies de Characidae em riachos de cabeceira na bacia do rio Ivinhema, realizaram-se amostragens bimestrais em dez riachos com ...
Yzel Rondon Súarez   +4 more
doaj  

Food resource used by small-sized fish in macrophyte patches in ponds of the upper Paraná river floodplain = Uso do alimento por peixes de pequeno porte associados às macrófitas aquáticas em lagoas da planície de inundação do alto rio Paraná

open access: yesActa Scientiarum: Biological Sciences, 2009
This study analyzed the diet of seven small-sized fish species(Characidae) and assessed their use of food resources. The species were collected in 2001 from nine ponds with aquatic macrophytes in the Paraná river floodplain, Brazil. Astyanax altiparanae,
Valdirene Esgarbosa Loureiro Crippa   +2 more
doaj  

Parasites of four ornamental fish from the Chumucuí River (Bragança, Pará, Brazil) Parasitas de quatro peixes ornamentais do Rio Chumucuí (Bragança-Pará, Brasil)

open access: yesRevista Brasileira de Parasitologia Veterinária, 2013
The objective of the present study was to evaluate the parasite fauna of four species of ornamental fish collected in the Chumucuí River, municipality of Bragança, Pará, Brazil. From June 2006 to December 2007.
Rodrigo Yudi Fujimoto   +4 more
doaj  

THE CONSERVATION STATE OF CHARACIDAE FISH (PISCES: CHARACIFORMES) IN AN AREA OF THE PLATA BASIN, ARGENTINA ESTADO DE CONSERVACION DE PECES CHARACIDAE (PISCES: CHARACIFORMES) EN UN AREA DE LA CUENCA DEL PLATA, ARGENTINA

open access: yesGayana, 2007
The fish conservation was quantified by means of the index SUMIN, composed by the summation of 12 outstanding variables for the species survival and/or conservation.
Marcelo A Zayas, Elly Cordiviola
doaj  

A Long-Term Conserved Satellite DNA That Remains Unexpanded in Several Genomes of Characiformes Fish Is Actively Transcribed. [PDF]

open access: yesGenome Biol Evol, 2021
Dos Santos RZ   +9 more
europepmc   +1 more source

Spatial-temporal variation of the distribution and abundance of Moenkhausia sanctaefilomenae at lagoons of the Cuiaba river floodplain, Pantanal, Brazil - doi: 10.4025/actascibiolsci.v34i1.6809

open access: yes, 2011
Identifying the biotic and abiotic factors that determine the variation in the distribution and abundance of populations has become a great challenge for the field of ecology in recent years. Thus, in this study we evaluated the effect of abiotic variables and the abundance of predators on the abundance of Moenkhausia sanctaefilomenae, the variation in
Lourenço, Luzia da Silva   +2 more
openaire   +1 more source

A review of the current status of Cryptosporidium in fish. [PDF]

open access: yesParasitology, 2022
Couso-Pérez S   +2 more
europepmc   +1 more source

Monitoring fish communities through environmental DNA metabarcoding in the fish pass system of the second largest hydropower plant in the world. [PDF]

open access: yesSci Rep, 2021
Dal Pont G   +10 more
europepmc   +1 more source

Molecular Characterization of Cryptosporidium spp. in Cultivated and Wild Marine Fishes from Western Mediterranean with the First Detection of Zoonotic Cryptosporidium ubiquitum. [PDF]

open access: yesAnimals (Basel), 2022
Moratal S   +9 more
europepmc   +1 more source

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