Results 51 to 60 of about 31,731 (168)
An integrated approach to balance freshwater connectivity restoration and invasion risk
Abstract Habitat fragmentation negatively affects many native migratory fish populations. However, this fragmentation can also prevent the spread and establishment of invasive species. We modified the dendritic connectivity index (DCI), a commonly used freshwater connectivity metric, to account for multiple invasive dispersal pathways in estimates of ...
Alex Arkilanian +3 more
wiley +1 more source
ABSTRACT This article examines the historical displacement of Indigenous peoples in Venezuela, focusing on the links between indigenist policies and the exploitation of natural resources, particularly oil, throughout the 20th century. Using a combined historical and ethnographic approach, it demonstrates how the formation of the Venezuelan nation‐state
Gabriel Tardelli
wiley +1 more source
Las principales funciones de la coloración en los peces son las siguientes: 1) Camuflaje y mimetismo: En ciertos entornos acuáticos, l coloración puede proporcionar camuflaje o mimetismo, permitiendo que los peces se mezclen mejor con su entorno y escapen de depredadores o acechen a sus presas.
openaire +1 more source
Panama Canal expansion and shifts in fishing practices: A social‐ecological network approach
Abstract Species introductions have spiked over the past two centuries due to globalization. These introductions impact ecosystems, but may also have long‐term implications for human communities. In one of the world's hubs for global shipping, the Panama Canal, a recent canal expansion has coincided with an increase in marine fishes entering the ...
Michelle Hübel +10 more
wiley +1 more source
Fil: Mabragaña, Ezequiel. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata.
Mabragaña, Ezequiel +1 more
openaire +1 more source
The catch of the day: The shortcomings of promoting sustainable seafood consumption in Peru
This study investigates the meaning and application of “catch of the day” in Peru by analyzing 233 news articles and genetically testing 43 fish samples from restaurants. Results show that media frequently use the term as a vague marketing phrase, while genetic testing reveals a 60% mislabeling rate. These findings suggest that “catch of the day” lacks
Daniella Biffi +2 more
wiley +1 more source
ABSTRACT Assessing genetic structure across ocean basins is essential to understand connectivity and guide conservation in data‐deficient open‐water sharks. In this study, we examined the population genomics of Squalus cf. mitsukurii by analyzing tissue samples collected from two distant regions: California, USA (Pacific Ocean) and Pernambuco, Brazil ...
Aisni Mayumi Corrêa de Lima Adachi +11 more
wiley +1 more source
I Osmorregulación en peces Los peces son animales osmorreguladores, es decir, mantienen su osmolaridad corporal regulada y diferenciada de la del medio acuático que habitan.
Mancera Romero, Juan Miguel
core
Exploring ecohydrology through the lens of local fishers in the Bolivian Amazon
Abstract The natural flow regimes of Andean‐Amazon tributaries play a vital role in sustaining their rich biodiversity and productive local fisheries, but ongoing and proposed alteration of river flow regimes by large dams threatens to negatively impact river ecosystems. Despite its importance, our understanding of how hydrologic variability influences
Lina G. Terrazas‐Villarroel +4 more
wiley +1 more source
Anatomía e Histología de los Ciegos Pilóricos en Cinco Especies de Peces de la Familia Characidae
Se realizaron análisis macro y microscópicos de los ciegos pilóricos en las especies Mylossoma acanthogaster, M. duriventre, M. aureum, Pygocentrus cariba y Cynopotamus venezuelae, procedentes de los ríos Catatumbo, Orinoco, Apure y Cunaviche en ...
Zulamita Medina Perozo +4 more
doaj

