Results 11 to 20 of about 16,429 (151)

Primeros estadios del ciclo de vida de peces nativos del Río San Pedro (Cuenca del Rio Valdivia, Chile) First stages of the life cycle in native fish from the San Pedro River (Valdivia River Basin, Chile)

Gayana, 2012
Los estadios de huevos, larvas y juveniles de los peces de agua dulce nativos de Chile son prácticamente desconocidos. Conocer su estacionalidad, morfología y uso de hábitat es relevante para comprender su biología y permitir la conservación de esta ...
Germán Montoya, Alfonso Jara, Katherin Solis-Lufí, Nicole Colin, Evelyn Habit   +4 more
doaj   +1 more source

The introduced Arapaima gigas in the Bolivian Amazon: Trophic position and isotopic niche overlap with native species

Ecology of Freshwater Fish, Volume 32, Issue 4, Page 926-937, October 2023., 2023
Abstract Non‐native fish species may generate major ecological impacts on native assemblages. This study aims to assess the potential impact of the introduced Arapaima gigas on native fish assemblages in two oxbow lakes of the Bolivian Amazon. Stable isotope data were used to determine trophic position (TP) and isotopic niche overlap, to evaluate ...
Danny Rejas, Thierry Oberdorff, Steven A. J. Declerck, Monika Winder   +3 more
wiley   +1 more source

Does invasion by armored catfish shift trophic ecology of native fishes? Evidence from stable isotope analysis

Ecology, Volume 104, Issue 5, May 2023., 2023
Abstract Popular as aquarium fish, armored catfishes from South America (Pterygoplichthys spp.) have been introduced and become invasive in tropical and subtropical regions worldwide. These ecosystem engineers can deplete basal resources (e.g., periphyton and detritus), with potential negative effects for native fauna. We studied the trophic ecology of
Yasmín Quintana, Friedrich Wolfgang Keppeler, Kirk O. Winemiller   +2 more
wiley   +1 more source

TRANSLOCACION DE PECES NATIVOS EN LA CUENCA DEL RIO LAJA (REGION DEL BIOBIO, CHILE) TRANSLOCATION OF NATIVE FISHES IN LAJA RIVER (BIOBIO REGION, CHILE)

Gayana, 2002
Con el objetivo de conservar la fauna íctica nativa y como medida de mitigación al impacto generado por la interrupción del libre desplazamiento de peces en el río Laja (Región del Biobio), se llevó a cabo un programa de translocación de peces nativos ...
Evelyn Habit, Pedro Victoriano, Oscar Parra   +2 more
doaj   +1 more source

Affordable de novo generation of fish mitogenomes using amplification‐free enrichment of mitochondrial DNA and deep sequencing of long fragments

Molecular Ecology Resources, Volume 23, Issue 4, Page 818-832, May 2023., 2023
Abstract Biomonitoring surveys make use of metabarcoding tools to describe the community composition. These studies match their sequencing results against public genomic databases to identify the species. However, mitochondrial genomic reference data are yet incomplete, only a few genes may be available, or the suitability of existing sequence data is ...
Ana Ramón‐Laca, Ramón Gallego, Krista M. Nichols   +2 more
wiley   +1 more source

Exploring metapopulation‐scale suppression alternatives for a global invader in a river network experiencing climate change

Conservation Biology, Volume 37, Issue 1, February 2023., 2023
Abstract Invasive species can dramatically alter ecosystems, but eradication is difficult, and suppression is expensive once they are established. Uncertainties in the potential for expansion and impacts by an invader can lead to delayed and inadequate suppression, allowing for establishment.
Brian D. Healy, Phaedra Budy, Charles. B. Yackulic, Brendan P. Murphy, Robert C. Schelly, Mark C. McKinstry   +5 more
wiley   +1 more source

Estudio comparativo de supervivencia de seis especies de peces nativos continentales en su medio natural [PDF]

Alternativas, 2020
Se evaluó la supervivencia de seis  especies de peces nativos continentales (Andinoacaras rivulatus , Cichlasoma festae,  Ichthyoelephas humeralis, Brycon dentex.Curimatorbis boulengeri, y Hoplias microhelepis) en su medio natural, en base a los datos de capturas en un rango de cinco años, realizada por ocho empresas de pesca extractiva, en el rio ...
Jorge Rodríguez, Eva Cevallos, Rossy Rodríguez, Yenny Torres, Martin González   +4 more
openaire   +1 more source

Patrones de desplazamiento de peces nativos en el Río San Pedro (cuenca del Río Valdivia, Chile) Movement patterns of the native fish fauna of the San Pedro River (Valdivia River Basin, Chile)

Gayana, 2012
Los peces nativos chilenos se caracterizan por ser de tamaño pequeño (
Priscila Piedra, Evelyn Habit, Alejandra Oyanedel, Nicole Colin, Katherin Solis-Lufí, Jorge González, Alfonso Jara, Néstor Ortiz, Roberto Cifuentes   +8 more
doaj   +1 more source

Adaptación y rendimiento de variedades de chile nativas de Guatemala en un sistema acuapónico con tilapia nilótica

Ciencia, Tecnología y Salud, 2017
La acuaponía es un sistema de producción de alimentos que combina el cultivo de peces con el de plantas. Este sistema usando variedades de chile nativos de Guatemala puede ser una opción interesante para contribuir a la seguridad alimentaria.
Carlos Valdez--Sandoval
doaj   +3 more sources

Participación comunitaria en la transferencia tecnológica de un sistema acuícola de peces nativos

JAINA Costas y Mares ante el Cambio Climático, 2020
Low-scale aquaculture can be a successful model in rural settings because it can reduce demand for products and job creation, but one of the limiting factors to establish these aquaculture systems is the weakness of the manage-ment of technological processes in fish production by farmers.
L.N. López Jiménez, A. Maldonado Romo, C.A. Álvarez-González, E.S. Peña Marín, A. Fernández-Montes de Oca   +4 more
openaire   +2 more sources