Results 31 to 40 of about 141 (105)

Genidens machadoi

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

Genidens barbus

open access: yes, 2007
Genidens barbus (Lacépède, 1803) Pimelodus barbus Lacépède, 1803: 94 and 102. Type locality: Tropical America. No types known. Pimelodus commersonii Lacépède, 1803: 95 and 103, pl. 3 (fig. 1). No locality. No types known. Bagrus barbatus Quoy & Gaimard, 1824: 230, pl. 49 (fig.1-2). Type locality: Río de La Plata, South America.
Alexandre P. Marceniuk   +1 more
openaire   +2 more sources

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

Contribuição à Zooarqueologia do Sambaqui do Moa: novos vestígios ictiológicos

open access: yesRevista do Museu de Arqueologia e Etnologia, 2012
Este trabalho apresenta a descrição e uma breve discussão sobre os vestígios icitológicos recuperados a partir de escavações realizadas no Sambaqui do Moa, localizado em Saquarema/RJ.
Sue Anne Regina Ferreira da Costa   +3 more
doaj   +1 more source

Estudo bioquímico e fisiológico sobre os bagres marinhos do Brasil: I. Sobre padrão eletroforético do plasma em gel de poliacrilamida dos bagres da região estuarino lagunar de Cananéia

open access: yesBrazilian Journal of Oceanography, 1980
The possibility of the use of electropherogrames of plasma proteins in polyacrylamide slab gel in the study of populations of marine cat-fishes was examined. A total of 176 samples of plasma from four species. Sciadeichtys luniscutis.
Phan Van Ngan
doaj   +1 more source

Shifting Seas, Changing Diets: Evidence of Temporal Dietary Shifts in Marine Megafauna in Southern Brazil (2017–2023)

open access: yesAquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 5, May 2026.
ABSTRACT Understanding the dietary dynamics of marine megafauna is essential for interpreting ecological interactions and assessing environmental changes in marine ecosystems. We analysed temporal trends in the diets of eight megafaunal species, comprising marine mammals, seabirds, and sea turtles.
Joao Bosco Gusmao   +2 more
wiley   +1 more source

The emergence of pathogens on fish in an impacted estuary and the role of non‐native piranhas in a potential bacterial infectious outbreak

open access: yesJournal of Fish Biology, Volume 108, Issue 5, Page 1515-1523, May 2026.
Abstract As many tropical aquatic ecosystems worldwide, the Doce River estuary (DRE, southeastern Brazil) has increasingly faced multiple anthropogenic threats, including deforestation, mining, species introduction and water management. The 2015 collapse of the Fundão iron ore tailings dam severely changed water properties and increased heavy metal ...
Ryan Andrades   +10 more
wiley   +1 more source

Tissue-specific mercury concentrations in two catfish species from the Brazilian coast

open access: yesBrazilian Journal of Oceanography, 2012
Some regions of Brazil have particularly high levels of mercury (Hg) emissions due to industrial activities, and their fish species may therefore suffer high levels of contamination through bioaccumulation. In this paper we assess Hg contamination in the
Juliana de Souza Azevedo   +3 more
doaj   +1 more source

Shearing Tooth Morphology May Allow Sharks to Access Higher Trophic Levels at Smaller Sizes

open access: yesEcology and Evolution, Volume 15, Issue 8, August 2025.
Predator morphology imposes limitations on prey selection due to biomechanical constraints, making some prey functionally inaccessible and thereby constraining predator trophic niches. We assessed how two key components of trophic morphology—tooth shape and body size—affect prey selectivity and trophic niche in two sympatric sharks with contrasting ...
Sabrina Riverón   +7 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

Home - About - Disclaimer - Privacy