Results 41 to 50 of about 592 (127)

Effects of freezing on the carbon and nitrogen stable isotopic compositions of fish tissues [PDF]

Acta Limnologica Brasiliensia
Stable isotope analysis is a vital tool for elucidating nutrient flow within food chains. Studies utilizing this methodology must consider potential variables that could influence the δ13C and δ15N values of the species being examined.
Luciana Mulero Beloto, Thiago Simon Marques, Barbara Protocevich, Ronnie Von Mateus Ferreira, Plinio Barbosa de Camargo   +4 more
doaj   +1 more source

Desembarque de peixes da pesca artesanal na Barra do Rio, Tijucas – SC, Brasil

Biotemas, 2013
Com o objetivo de caracterizar e comparar os diferentes aspectos quantitativos e qualitativos da pesca artesanal, foram analisados os desembarques pesqueiros da comunidade de pescadores artesanais da Barra do Rio, em Tijucas-SC, de setembro de 2010 a ...
Daniel Ganzarolli Martins, Ivan Machado Martins, Natalia Hanazaki   +2 more
doaj   +1 more source

Primer registro de un depredador natural del bagre marino, Genidens barbus, (Ariidae, Siluriformes) en el estuario del río Negro, Río Negro, Patagonia Argentina

Anales del Instituto de la Patagonia, 2022
La dieta y los hábitos alimentarios de una especie determinan su ubicación dentro de una red trófica y definen su rol ecológico. De esta manera, también representan un mecanismo clave en la estructuración y mantenimiento de la estabilidad de las comunidades.
Andrea Diana Tombari, María Cecilia Gonzalez Dubox, Laura López Greco   +2 more
openaire   +1 more source

Fish stocks of Urophycis Brasiliensis revealed by otolith fingerprint and shape in the southwestern Atlantic Ocean [PDF]

, 2019
Brazilian codling Urophycis brasiliensis is one of the main commercial coastal fish species from the Southwestern Atlantic Ocean. Regardless of its economic relevance, its stock structure remains largely unknown.
Avigliano, Esteban, Barra, Fernando, Biolé, Fernanda Gabriela, Leisen, Mathieu, Thompson, Gustavo Ariel, Vargas, Claudia Vanesa, Volpedo, Alejandra   +6 more
core   +1 more source

Fluvio-marine travelers from South America: Cyclic amphidromy and freshwater residency, typical behaviors in Genidens barbus inferred by otolith chemistry

Fisheries Research, 2017
Abstract Catfish Genidens barbus is a commercially fished species from the south-western Atlantic Ocean. Overfishing of this species during the last few years has caused a collapse of fisheries and in turn has led to a ban of its exploitation. In order to identify the migratory patterns of this species in four migration corridors from South America ...
Avigliano, Esteban, Leisen, Mathieu, Romero, Rurik, Carvalho, Bárbara, Velasco, Gonzalo, Vianna, Marcelo, Barra Pantoja, Luis Fernando, Volpedo, Alejandra Vanina   +7 more
openaire   +5 more sources

Antagonistic Rewiring and Turnover Patterns in a Neotropical Fish–Parasite Metanetwork

Freshwater Biology, Volume 70, Issue 7, July 2025.
ABSTRACT Integrating beta‐diversity and network analyses is an emerging approach for understanding the spatial structure of species communities. For instance, although the presence of hosts affects parasite species distribution, environmental factors can either restrict or promote the occurrence of certain parasite species by changing the abundance of ...
Ana Paula Lula Costa, Paulo R. Guimarães, Andre A. Padial   +2 more
wiley   +1 more source

Indagando en los hábitos alimenticios de los cazadores recolectores de la Pampa Deprimida [PDF]

, 2012
Este trabajo pretende indagar en los hábitos alimenticios de los cazadores recolectores a partir del análisis de la evidencia arqueológica recuperada en el sitio El Divisadero Monte 6 que fue ocupado por cazadores-recolectores-pescadores del Holoceno ...
Daniela Avido, Emilio Eugenio, Verónica Aldazabal   +2 more
core   +1 more source

Assessing Fish Community Structure and Diversity Across Environmental Gradients in a Tropical Bay

Marine Ecology, Volume 46, Issue 2, March 2025.
ABSTRACT Understanding the relationship between species distribution and the environment across spatial gradients is crucial for biodiversity evaluation. We surveyed fish populations in a tropical bay, covering a spatial gradient from the outer zone with favorable marine conditions to the inner zone affected by human activities.
Leonardo Almeida Freitas, Francisco Gerson Araújo   +1 more
wiley   +1 more source

On the homologies of the skeletal components of catfish (Teleostei: Siluriformes) suspensorium [PDF]

, 2001
There has been much controversy concerning the identity of the components of the suspensorium in Siluriformes (catfishes). This confusion has implications not only for comparative morphology, but also for phylogenetic studies.
Chardon, M., Diogo, R., Oliveira, C.
core  

Morfología de los otolitos sagitta, lapillus y asteriscus de Genidens barbus de distribución patagónica

, 2022
Fil: Tombari, Andrea Diana. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro de Investigaciones y Transferencia de Rio Negro. Sede Choele Choel del Centro de Investigaciones y Transferencia de Rio Negro | Universidad Nacional de Rio Negro. Centro de Investigaciones y Transferencia de Rio Negro.
Gonzalez Dubox, María Cecilia, Córdoba Gironde, Sofía, Lopez, Laura Susana, Tombari, Andrea Diana   +3 more
openaire   +1 more source