Results 31 to 40 of about 272 (137)

Metazoan parasite fauna of two peacock-bass cichlid fish in Brazil [PDF]

open access: yesCheck List, 2013
A parasitological study of two freshwater cichlid fish of the genus Cichla (C. kelberi and C. piquiti) from six different aquatic ecosystems in Brazil was performed. Based on the survey, a checklist of the component community of the metazoan parasites of
Fabio Yamada, Ricardo Takemoto
doaj   +3 more sources

Fish diversity in the rivers that drain the Baixada Maranhense and the Mearim basin in northeastern Brazil

open access: yesBrazilian Journal of Biology, 2023
The Baixada Maranhense Environmental Protection Area of the Brazilian state of Maranhão encompasses a biologically rich region that includes the basins of four principal rivers, the Mearim, Pericumã, Pindaré, and Turiaçu, which form a complex of wetlands.
D. Limeira-Filho   +10 more
doaj   +1 more source

Small size today, aquarium dumping tomorrow: sales of juvenile non-native large fish as an important threat in Brazil

open access: yesNeotropical Ichthyology, 2017
Informal sales of large-bodied non-native aquarium fishes (known as “tankbusters”) is increasing among Brazilian hobbyists. In this study, we surveyed this non-regulated trade on Facebook® from May 2012 to September 2016, systematically collecting ...
André L. B. Magalhães   +6 more
doaj   +1 more source

Reproductive Aspects of Moenkhausia intermedia Eigenmann, 1908 (Pisces, Characidae) in the Upper Paraná River Basin, Brazil

open access: yesInternational Scholarly Research Notices, Volume 2011, Issue 1, 2011., 2011
The aim of this work was to determine the reproductive tactic of the population of Moenkhausia intermedia, inhabiting the Capivara Reservoir, lower Paranapanema River. Four different stretches of the reservoir were selected, and sampling was carried out quarterly, in the period from 2001 to 2004.
Armando César Rodrigues Casimiro   +6 more
wiley   +1 more source

Molecular identification of Cichla (Perciformes: Cichlidae) introduced in reservoirs in Southern Brazil - doi: 10.4025/actascibiolsci.v35i2.10684

open access: yesActa Scientiarum: Biological Sciences, 2012
Species of peacock bass were introduced in several watersheds in South America and worldwide, mainly due to its importance to sport fishing, by being a fighting fish.
Boris Briñez   +4 more
doaj   +1 more source

Drastic reduction of the functional diversity of native ichthyofauna in a Neotropical lake following invasion by piscivorous fishes

open access: yesNeotropical Ichthyology, 2021
Biological invasions are leading several species to extinction and are projected as a main driver of biodiversity changes in lakes for this century.
Carla Patrícia de Souza   +3 more
doaj   +1 more source

Unprotected Waters: When Protection Fails In Freshwater

open access: yesAquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 3, March 2026.
ABSTRACT Invasive species are a major driver of biodiversity loss in protected areas (PAs), yet their impacts in aquatic environments are less well documented. This study investigated the occurrence and distribution of nonnative freshwater fish in federal PAs in Brazil.
Aymar Orlandi Neto   +2 more
wiley   +1 more source

Proteocephalus macrophallus (Cestoda: Proteocephalidae) Infecting Cichla kelberi (Cichliformes: Cichlidae) as a Bioindicator for Trace Metal Accumulation in a Neotropical River from Southeastern Brazil

open access: yesWater, Air, & Soil Pollution, 2021
Here, we evaluate the potential for trace metal accumulation of nine elements (Al, Cr, Mn, Fe, Ni, Cu, As, Cd, and Pb) in the cestodes Proteocephalus macrophallus parasitizing the tucunare, Cichla kelberi, in the Jacare-Guacu River, southeastern Brazil.
Lucas Aparecido Rosa Leite   +3 more
openaire   +2 more sources

Achieving conservation through cattle ranching: The case of the Brazilian Pantanal

open access: yesConservation Science and Practice, Volume 7, Issue 7, July 2025.
Cattle ranching in the Pantanal should be part of the conservation agenda and we show the pathways to it. Abstract Cattle ranching in the ~140,000 km2 Brazilian Pantanal is considered one of the most important cases of sustainable use of natural resources in the global south. The region has had a successful history of balancing environmental protection
Rafael Morais Chiaravalloti   +6 more
wiley   +1 more source

Fish distribution across altitudinal gradients in the Upper Paraguay River Basin: Implications for conservation in the Pantanal region

open access: yesConservation Science and Practice, Volume 7, Issue 7, July 2025.
This paper approaches the patterns in fish distribution across the altitudinal gradient in the Upper Paraguay River basin, from uplands to the floodplain. We compiled more than 75,000 available fish records and registered 342 fish species and your distribution along altitudinal gradient. Floodplain portion have higher species diversity than headwaters,
Adriana Maria Espinoza Fernando   +11 more
wiley   +1 more source

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