Results 11 to 20 of about 4,919 (159)

Linking rivers, mixing faunas: How artificial connectivity between the Middle and Upper Paraná River basins shapes fish diversity in a tributary of the Itaipu Reservoir, Brazil. [PDF]

open access: yesJ Fish Biol
Abstract This work aimed to investigate the distribution and occurrence of fish species along the São Francisco Falso Braço Norte (SFFBN) River basin, a tributary of the Middle Paraná River basin now artificially connected to the Upper Paraná ecoregion, to evaluate how such connectivity may affect the biogeographic distribution and regional composition
Kampfert LEP   +5 more
europepmc   +2 more sources

Mammal defaunation leads to biotic homogenization of plant communities in tropical rainforests. [PDF]

open access: yesEcology
Abstract Biotic homogenization is the process in which species communities become increasingly similar across different regions over time. This phenomenon has substantial ecological, evolutionary, and economic implications, primarily driven by human activities such as habitat destruction, invasive species introduction, and climate change.
Ribas LGDS   +9 more
europepmc   +2 more sources

The southernmost range limit for the hidden angelshark Squatina occulta [PDF]

open access: yes, 2016
Background: Angelsharks (Genus Squatina) are distributed in the southern Southwest Atlantic Ocean between southeastern Brazil and central Patagonia. The endangered hidden angelshark Squatina occulta is reported in the literature as ranging from Espírito ...
Chiaramonte, Gustavo Enrique   +4 more
core   +1 more source

Occurrence and toxicity of Microcystis aeruginosa (Cyanobacteria) in the Paraná River, downstream of the Yacyretá dam (Argentina) [PDF]

open access: yes, 2016
Cyanobacteria constitute the main toxin producers in inland water ecosystems and have extensive global distribution. The presence of hepatotoxins in aquatic environments is hazardous to human and animal health; even though the presence and identification
Andrinolo, Dario   +3 more
core   +3 more sources

Studies on reproduction of the mullet Mugil platanus Günther, 1880 (Actinopterygii, Mugilidae) from the Mar Chiquita coastal lagoon, Argentina: Similarities and differences with related species [PDF]

open access: yes, 2011
The aim of the present study is to provide the first results on the reproductive biology of Mugil platanus, from the Mar Chiquita coastal lagoon (Argentina).
Cousseau, María Berta   +2 more
core   +1 more source

Sorpresivo hallazgo del gobio Shimofuri (Tridentiger bifasciatus) en Sudamérica, reporte de un nuevo pez exótico en las costas de Argentina

open access: yesActa Zoológica Lilloana, 2023
El gobio Shimofuri (Tridentiger bifasciatus) es originario de la costa noroeste del Pacífico de Asia. Este pez fue registrado como especie exótica en 1985 en California, EE.
Sergio Bogan
doaj   +1 more source

First record of Amatitlania nigrofasciata (Günther, 1867) (Cichliformes: Cichlidae) as introduced species in natural freshwaters of Colombia [PDF]

open access: yesCheck List, 2016
Amatitlania nigrofasciata is a small fresh­water fish species native to Central America. Is a popular ornamental fish that has been traded and cultivated for the aquarium industry, introduced into temperate and tropical regions across the world.
Guido Herrera-R   +2 more
doaj   +3 more sources

Inventario rápido de la ictiofauna en la cuenca del Bajo Pachitea, Perú

open access: yesRevista Peruana de Biología, 2013
El presente trabajo informa sobre la diversidad de peces en la Cuenca del Bajo Pachitea. En julio de 2005 un inventario rápido en 31 estaciones (14 ríos, 13 quebradas y 4 lagunas) fue realizado.
Vanessa E. Palacios   +2 more
doaj   +1 more source

Checklist of freshwater fishes from Loreto, Peru

open access: yesRevista Peruana de Biología, 2021
This study presents an extensive review of published and unpublished occurrence records of fish species in the Loreto department. Located in the northeast of the country, Loreto is the most geographically extensive region in the Peruvian territory ...
Vanessa Meza-Vargas   +4 more
doaj   +1 more source

Rediscovery of Hemigrammus unilineatus (Gill, 1858) (Characiformes, Characidae) in Ecuador after more than three decades [PDF]

open access: yesCheck List, 2021
Hemigrammus unilineatus (Gill, 1858) (Characidae) is rediscovered in Yasuní National Park, eastern Ecuador, where it has not been reported since 1987. We present a detailed taxonomic description, including measurements and photographs, as well
Jonathan Valdiviezo-Rivera   +2 more
doaj   +3 more sources

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