Results 11 to 20 of about 188 (144)

Management proposal based on the timing of oral incubation of eggs and juveniles in the sentinel species Genidens genidens (Siluriformes: Ariidae) in a tropical estuary [PDF]

open access: yesNeotropical Ichthyology, 2018
Ariids such as Genidens genidens are particularly susceptible to overfishing because of their complex reproductive mechanisms, which result in slow replenishment of stocks.
Marcelo Vianna   +2 more
exaly   +6 more sources

Sexual dimorphism in the catfish Genidens genidens (Siluriformes: Ariidae) based on otolith morphometry and relative growth [PDF]

open access: yesNeotropical Ichthyology, 2019
Genidens genidens is a species susceptible to population declines in view of their reproductive biology peculiarities. Morphometric differences between sexes are observed in the literature, and these differences should also be evident in otolith ...
Marcelo Vianna   +2 more
exaly   +5 more sources

Bacterial contamination of the catfish (Cathorops agassizii - Valenciennes, 1839 and Genidens genidens - Agassiz, 1829) sting [PDF]

open access: yesJournal of Venomous Animals and Toxins Including Tropical Diseases, 2006
Departamento de Microbiologia e Imunologia Instituto de Biociencias UNESP, Botucatu, SP, 18618 ...
Marcos Emerson Pinheiro Junqueira
exaly   +7 more sources

Lapillus otoliths of the Cathorops spixii (Spix & Agassiz, 1829) and Genidens genidens (Cuvier, 1829) (Actinopterygii - Ariidae)

open access: yesActa Scientiarum: Biological Sciences, 2014
The aim of this study was to analyze the morphology and morphometry of lapillus otoliths of the catfishes Cathorops spixii and Genidens genidens from the coast of Paraná State, Brazil. We used 147 lapillus from C. spixii and 96 from G.
Barbara Maichak de Carvalho   +2 more
doaj   +4 more sources

Biometrie sexual and ontogenetic dimorphism on the marine catfish Genidens genidens (Siluriformes, Ariidae) in a tropical estuary

open access: yesLatin American Journal of Aquatic Research, 2015
This paper aims to study the ontogenetic sexual dimorphism of Genidens genidens in Guanabara Bay, southeastern coast of Brazil. Altogether 378 specimens were anayzed (233 females and 145 males) with total length ranging from 13.3 to 43.5 cm.
Larissa G Paiva   +3 more
doaj   +3 more sources

From Core to Edge: Habitat Signatures in the Otoliths of Genidens genidens in the Southwestern Atlantic Estuaries

open access: yesFishes
Understanding habitat use and connectivity in estuarine fishes is essential for effective conservation and management. In this study, otolith microchemistry was applied to investigate habitat use and connectivity of the estuarine catfish Genidens ...
Marina Paixão Gil   +3 more
doaj   +2 more sources

Morphology of sagitta, lapillus and asteriscus of Patagonian Genidens barbus

open access: yesMarine and Fishery Sciences, 2022
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
María D. González Dubox   +3 more
doaj   +2 more sources

First record of partial albinism in two catfish species of Genidens (Siluriformes: Ariidae) in an estuary of Southern Brazil

open access: yesBrazilian Archives of Biology and Technology, 2013
This study reports the first occurrence of partial albinism in two species of Ariidae: Genidens barbus and Genidens planifrons from an estuary of Southern Brazil. Possible causes of the simultaneous occurrence of three specimens with partial albinism are
Rodrigo Machado, Paulo Henrique Ott
exaly   +2 more sources

Are the Temporal Changes Observed in the Reproductive Biology of the Estuarine Conguito Sea Catfish Related to Increased Small‐Scale Fishing Effort on the Northwestern Pacific Coast of Mexico?

open access: yesMarine and Coastal Fisheries, Volume 14, Issue 4, August 2022., 2022
Abstract Biological parameters relating to the reproductive biology of Conguito Sea Catfish Cathorops liropus were investigated in 1979–1984 and 2015–2018 from an estuarine system on the northwestern Pacific coast of Mexico. In the first period, the spawning season occurred during the dry–warm season (April–June), according with the percentage of ...
Felipe Amezcua‐Linares   +5 more
wiley   +1 more source

Revealing the drivers of taxonomic and functional diversity of nearshore fish assemblages: Implications for conservation priorities

open access: yesDiversity and Distributions, Volume 28, Issue 8, Page 1597-1609, August 2022., 2022
Abstract Aim Understanding patterns and drivers of biodiversity are essential towards developing effective conservation strategies for shallow marine habitats broadly. However, little is known about the natural and anthropogenic factors that structure fish biodiversity of sandy beaches, one of the largest and most socio‐economically valuable nearshore ...
Yasmina Shah Esmaeili   +7 more
wiley   +1 more source

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