Results 11 to 20 of about 2,759 (142)

Lista anotada de los tipos de peces en la colección del Laboratorio de Ictiología, Universidad del Quindío, Armenia, Colombia (IUQ)

open access: yesBiota Colombiana, 2017
Se elaboró una lista completa de los tipos depositados en la colección del Laboratorio de Ictiología de la Universidad del Quindío, Armenia, Colombia (IUQ). Ejemplares tipo de 63 especies nominales de peces óseos continentales han sido depositados en IUQ,
César Román-Valencia   +4 more
doaj   +9 more sources

Hybridization, Maternal Inheritance, and Evolutionary Time of Divergence of Endangered Species of <i>Hypancistrus</i> (Siluriformes: Loricariidae) in the Xingu River. [PDF]

open access: yesEcol Evol
We uncover recent hybridization dynamics among three endemic Hypancistrus species from the Xingu River, including the critically endangered H. zebra. Mitogenomic analyses reveal unidirectional maternal inheritance and recent evolutionary radiation (< 0.5 Ma), explaining their retained reproductive compatibility.
Kerniske FF   +4 more
europepmc   +2 more sources

On traits matching and the modular organization of food web and occurrence networks. [PDF]

open access: yesJ Anim Ecol
What mechanisms shape ecological networks? In Paraná River piscivores, species traits and abundance scaling promote modular structures. Our findings reveal how communities self‐organize and highlight the conditions needed to sustain them. Abstract Modularity and nestedness have been observed recurrently across different ecological networks, including ...
Borzone Mas D   +5 more
europepmc   +2 more sources

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

Estudio preliminar de ictioplancton de la Amazonia peruana con énfasis en la familia Pimelodidae

open access: yesRevista Peruana de Biología, 2013
En el presente trabajo se informa y describen las larvas de peces presentes en la naciente del río Madre de Dios, con énfasis en la familia Pimelodidae. Las colectas se realizaron entre noviembre y diciembre de 2004, utilizando una red de ictioplancton
María Rojas   +3 more
doaj   +1 more source

Ichthyological diversity of Inambari River, Madre de Dios, Peru

open access: yesRevista Peruana de Biología, 2008
The main purposes of this study were to know the diversity of fishes in the Inambari river basin, at Mazuco district, (Madre de Dios) and the state of conservation of the aquatic habitats.
Vanessa Palacios, Hernán Ortega
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 Yasun&iacute; 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

Food habits of the broad nose skate, Bathyraja brachyurops (Chondrichthyes, Rajidae), in the south-west Atlantic

open access: yesScientia Marina, 2008
Food habits of Bathyraja brachyurops were studied based on stomach content analyses of 346 specimens collected from research cruises carried out from 2003 to 2005 on the Argentinean continental shelf (36ºS-55ºS). A total of 265 stomachs (76.6%) contained
Mauro Belleggia   +5 more
doaj   +1 more source

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