Results 41 to 50 of about 188 (144)

The marine catfish Genidens barbus (Ariidae) fisheries in the state of São Paulo, southeastern Brazil: diagnosis and management suggestions [PDF]

open access: yesAnais da Academia Brasileira de Ciências, 2020
In this study we analyzed data on fishing landings of Genidens barbus in the state of São Paulo, Brazil, from 2000 to 2014. An estimation of the total production was obtained through the analysis of 781,856 landings, among which 87% were categorized as artisanal and 13% as industrial. The abundance index showed some stability in the period.
JOCEMAR T. MENDONÇA   +2 more
openaire   +6 more sources

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

Otolith edge fingerprints as approach for stock identification of Genidens barbus [PDF]

open access: yesEstuarine, Coastal and Shelf Science, 2017
Abstract The purpose of this paper is to assess the use of multi-elemental otolith fingerprints as a tool to delimit catfish Genidens barbus fish stocks in four estuaries from the southwestern Atlantic Ocean. Barium:Calcium (Ca), Magnesium:Ca, Manganese:Ca, Sodium:Ca and Strontium:Ca ratios in the otolith edge were determined by LA-ICPMS. PERMANOVA
Avigliano, Esteban   +7 more
openaire   +5 more sources

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 granulosus NT

open access: yes, 2014
Published as part of Litz, Thomas O. & The, Stefan Koerber Introduction, 2014, Check List of the Freshwater Fishes of Uruguay (CLOFF-UY)., pp.
Litz, Thomas O.   +1 more
openaire   +2 more sources

Integrated use of otolith shape and microchemistry to assess Genidens barbus fish stock structure

open access: yesEstuarine, Coastal and Shelf Science, 2021
Abstract Otolith composition (edge vs core: Mg/Ca, Mn/Ca, Zn/Ca, Sr/Ca, Ba/Ca) by LA-ICP-MS and Elliptic Fourier analysis were integrated to evaluate spatial segregation of adult and juvenile stages of Genidens barbus from specimens collected from five coastal areas off Brazil (Paraiba do Sul River, Guanabara Bay, Itapanhau River mouth, Paranagua Bay)
Rodrigues Maciel, Thaís   +4 more
openaire   +2 more sources

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  

Temporal patterns of fish occurrence of the euryhaline sector of a subtropical estuary, southern Brazil

open access: yesActa Scientiarum: Biological Sciences, 2020
Fish fauna was studied in five sites of the shallow infralittoral of the Paranaguá Bay during the period from October 1999 to September 2000. At each sampling site, fish were sampled with other trawls, salinity and temperature were measured, water ...
Paula Nakayama   +4 more
doaj   +1 more source

MATURAÇÃO E DESOVA DOS BAGRES MARINHOS (OSTEICHTHYES, ARIIDAE) DO COMPLE- XO ESTUARINO LAGUNAR DE CANANÉIA (25º.S, 48º.W)

open access: yesBoletim do Instituto de Pesca, 2018
São apresentados estudos sobre a época de desova e maturações gonadal e sexual dos bagres marinhos das espécies Arius spixii, Genidens genidens, Sciadeichthys luniscutis, Netuma barba e Bagre marinus, mediante a análise dos óvulos. O fator de maturidade
Motoi MISHIMA, Shitiro TANJI
doaj  

Genidens barbus (Lacepéde 1803) [PDF]

open access: yes, 2010
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. Se lo encuentra en la costa Atlántica de América del Sur desde el Rio de la Plata hasta el Este de Brasil (Liotta, 2006).
Nadalin, Diego O., López, Hugo Luis
openaire   +1 more source

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