Results 41 to 50 of about 3,742 (115)

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

open access: yesFreshwater 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   +2 more
wiley   +1 more source

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

open access: yesMarine 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   +1 more
wiley   +1 more source

Genidens barbus (Lacepéde 1803) [PDF]

open access: yes, 2018
Nombre vulgar: bagre, bagre de mar, bagre negro, mimoso, mochuelo. El mimoso es el único representante de los bagres marinos que habita las aguas de nuestro pais.
López, Hugo Luis, Nadalin, Diego O.
core  

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

open access: yesFisheries 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   +7 more
openaire   +5 more sources

Aproximación al conocimiento del potencial reproductivo del stock patagónico de Genidens barbus [PDF]

open access: yes, 2021
Fil: González Dubox, María Cecilia. Universidad Nacional de Río Negro, Laboratorio de Contaminación Ambiental. Río Negro; Argentina.Fil: López Greco, Laura. Universidad de Buenos Aires.
Tombari, Andrea Diana   +2 more
core   +1 more source

Plasma ion levels of freshwater and marine/estuarine teleosts from Southern Brazil

open access: yesNeotropical Ichthyology
The purpose of this study was to investigate Na+, Cl-, K+, Ca2+, and Mg2+ levels in the plasma of freshwater and marine/estuarine teleosts collected at different salinities (0 to 34) from the estuarine and freshwater portions of the São Gonçalo channel ...
Alexssandro Geferson Becker   +6 more
doaj   +1 more source

Chave para identificação das espécies de bagres marinhos (Siluriformes, Ariidae) da costa brasileira

open access: yesBoletim do Instituto de Pesca, 2018
A identificação das espécies de bagres marinhos da famí­­lia Ariidae é problemática devido í­Â  presença de poucas caracterí­­sticas externas que permitam uma diagnose segura da espécie.
Alexandre P. Marceniuk
doaj  

Composição da assembleia de Monogenoidea (Platyhelminthes) das brânquias de Genidens barbus Lacépède, 1803 (Siluriformes, Ariidae) do estuário da Lagoa dos Patos – RS, Brasil [PDF]

open access: yes, 2016
Um em cada 20 vertebrado (5%) é Siluriforme (Actinopterygii), uma das maiores ordens de peixes, na região Neotropical. Ariidae abriga 46 espécies nominais válidas.
Vicente, Astaruth Nayara
core  

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

open access: yes, 2023
Otoliths are calcium carbonate structures, deposited as aragonite, located in the inner ear of bony fish. In recent years, they have become a useful tool for the determination of fish species, trophic content, age studies, and the identification of fish ...
Tombari, A. D.   +3 more
core  

Genidens barbus The 2011

open access: yes, 2011
Published as part of The, Stefan Koerber, 2011, List of Freshwater Fishes from Argentina - Update 12., pp.
openaire   +1 more source

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