Results 21 to 30 of about 119 (90)

Genidens barbus

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

Estudo de espécies de pescado potencialmente aproveitáveis na cadeia produtiva do litoral sul do Estado do Rio de Janeiro

open access: yesRevista Verde de Agroecologia e Desenvolvimento Sustentável, 2015
No Rio de Janeiro, a produção de pescado ocorre de maneira ampla em contingente de espécies, porém, algumas se encontram em situação de sobrepesca, tornando-se importante o estudo de espécies potencialmente aproveitáveis do ponto de vista nutricional ...
A. L. A. Jamas   +4 more
doaj   +1 more source

Avaliação das pescarias de bagre-branco (Genidens barbus) nos estados de São Paulo e Paraná, Brasil

open access: yesRevista Ibero-Americana de Ciências Ambientais, 2023
A pesca de G. barbus é considerada uma das pescarias mais importantes do setor artesanal do sudeste e sul do Brasil. No entanto, os indivíduos desta espécie são considerados vulneráveis à extinção, devido à baixa fecundidade, a incubação do tipo oral realizada pelos machos, distribuição restrita em águas de rios ou estuários durante o período ...
Maria Carolina Las Casas e Novaes   +2 more
openaire   +1 more source

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

open access: yesActa 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   +4 more
doaj   +1 more source

Notes on the Bull shark Carcharhinus leucas in the lagoon region of Cananéia, Brazil

open access: yesBrazilian Journal of Oceanography, 1971
Ninety one young specimens and 3 adult females of BulI shark ("cação cabeça chata") caught in the lagoon region of Cananéia were examined, their tooth formula being 27/25 and the number of pre-caudal vertebrae ranging from 109 to 115.
V Sadowsky
doaj   +1 more source

Inter-annual variability in otolith chemistry of catfish Genidens barbus from South-western Atlantic estuaries

open access: yesJournal of the Marine Biological Association of the United Kingdom, 2017
The catfish Genidens barbus is a commercial species from South America. The aim of the present study was to examine the inter-annual variability in estuary-specific chemical signatures of otolith cores (Ba:Ca, Mg:Ca, Mn:Ca, Sr:Ca and Zn:Ca ratios) for three estuaries from Argentina and Brazil where adults were collected over multiple years. Secondarily,
Avigliano, Esteban   +4 more
openaire   +2 more sources

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

open access: yesBiotemas, 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   +2 more
doaj   +1 more source

How Far Upstream: A Review of Estuary-Fresh Water Fish Movements in a Large Neotropical Basin

open access: yesFrontiers in Marine Science, 2019
The present study comprises the first systematic analysis of the limits of upstream movement by some fish species that use the estuarine area of the Patos Lagoon basin in southern Brazil.
Nelson Ferreira Fontoura   +5 more
doaj   +1 more source

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

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