Results 71 to 80 of about 119 (90)

Fin spine metals by LA-ICP-MS as a method for fish stock discrimination of Genidens barbus in anthropized estuaries [PDF]

Fisheries Research, 2020
Abstract Metal:Ca ratios (Li:Ca, Cu:Ca, Fe:Ca, Na:Ca, Rb:Ca, Pb:Ca and Zn:Ca) in fin spines of Genidens barbus, an endangered catfish species, were used as possible habitat markers from three Southwestern Atlantic sampling areas (Paranagua estuarine complex, Brazil; Parana River Delta, Argentina-Uruguay; and Negro River, Patagonia).
Esteban Avigliano, Nathan R Miller, Barbara Maichak DE CARVALHO   +2 more
exaly   +4 more sources

Use of lapillus otolith microchemistry as an indicator of the habitat of Genidens barbus from different estuarine environments in the southwestern Atlantic Ocean

Environmental Biology of Fishes, 2015
The marine catfish Genidens barbus is an anadromous species from South America. The aim of the present study was to evaluate the use of lapillus otolith microchemistry (Sr:Ca; Ba:Ca and Mg:Ca ratios) as an indicator of changes in habitat use and identify the potential breeding areas and fish stocks of G.
Esteban Avigliano, Gonzalo Velasco, Alejandra V Volpedo   +2 more
exaly   +3 more sources

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Calculating growth parameters of Genidens barbus (Siluriformes, Ariidae) using length composition and age data

Journal of Applied Ichthyology, 2007
Summary The marine catfish Genidens barbus was once one of the most important estuarine fishery resources in the Patos Lagoon (southern Brazil), which had the largest population known for the species. However, clear signs of overfishing have been observed since the 1980s.
J P Vieira
exaly   +2 more sources

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 ...
Esteban Avigliano, Mathieu Leisen, Rurik Romero   +2 more
exaly   +6 more sources

When an advantageous reproductive trait turns bad: Eggs of the threatened fish Genidens barbus as a natural bait in recreational fisheries

Journal of Fish Biology, 2020
AbstractThis study describes a recreational fishing method focused on marine catfish, Genidens barbus (Endangered‐EN), through the adoption of its eggs as a natural bait during its reproductive period in southern Brazilian ecosystems. Male G. barbus perform parental care, collecting eggs released by females after the fertilization process.
Rodrigo Machado, Eduardo Gentil, Jorge L. Rodrigues‐Filho   +2 more
openaire   +2 more sources

Size estimation based on Genidens barbus and Micropogonias furnieri otoliths. Exploring Late Holocene euryhaline fish capture techniques in the eastern Pampa–Patagonia transition, Argentina

The Journal of Island and Coastal Archaeology, 2023
Sea catfish (Genidens barbus) and whitemouth croaker (Micropogonias furnieri) were the most marine euryhaline species exploited by hunter-gatherers during the final Late Holocene along the coastal fringe of the eastern Pampa–Patagonia transition (Argentina).
Luciana Stoessel, Gustavo Flensborg, Gustavo Martínez   +2 more
openaire   +2 more sources

Río de la Plata voyagers: Deciphering the migration ecology of a vulnerable marine catfish (Genidens barbus) in a large subtropical river (lower Uruguay River)

Aquatic Conservation: Marine and Freshwater Ecosystems, 2021
Abstract Genidens barbus is a vulnerable marine migrant catfish with low fecundity, a complex life cycle (i.e. mouth breeding), and is the target of industrial and artisanal fisheries of several countries. This species regularly migrates from marine to freshwater environments of the south‐western Atlantic. The aim of this work was to delve deeper into
Nicolás Vidal, Alejandro D'Anatro, Iván González‐Bergonzoni, Ivana Silva, Patricia Correa, Joaquín País, Giancarlo Tesitore, Franco Teixeira de Mello   +7 more
openaire   +1 more source

Nursery areas and connectivity of the adults anadromous catfish (Genidens barbus) revealed by otolith-core microchemistry in the south-western Atlantic Ocean

Marine and Freshwater Research, 2016
The anadromous catfish, Genidens barbus, is a commercial and vulnerable species from South America. The aims of the present study were to assess whether the nursery areas can be discriminated by using microchemical signatures of lapillus otoliths, to assess the accuracy of classifying fish in relation to natal nursery area and to discuss the ...
Avigliano, Esteban, Carvalho, Barbara, Velasco, Gonzalo, Tripodi, Pamela, Vianna, Marcelo, Volpedo, Alejandra   +5 more
openaire   +2 more sources

Microplastics in Vulnerable Catfish: Baseline Data from Northern Patagonia's Genidens Barbus

Regional Studies in Marine Science
Fil: Fernandez Severini, Melisa Daiana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Argentino de Oceanografía. Universidad Nacional del Sur.
Maialen G. Ardusso, Aimé I. Funes, Andrea D. Tombari, Melisa F. Severini, Natalia S. Buzzi, Fabio Malanca, Guido Rimondino   +6 more
openaire   +2 more sources

Ontogenetic niche feeding partitioning in juvenile of white sea catfishGenidens barbusin estuarine environments, southern Brazil

Journal of the Marine Biological Association of the United Kingdom, 2008
Ontogenetic diet changes (prey species richness and size) in juveniles of white sea catfish(Genidens barbus)were tested in three southern Brazilian estuaries: Mampituba (29°12′S), Tramandaí (30°02′S), Chuí (33°44′S). Cluster analysis revealed that white sea catfish juvenile populations in the three estuaries are composed of two feeding groups.
Manuel Mendoza-Carranza, João Paes Vieira   +1 more
openaire   +1 more source