Results 71 to 80 of about 3,343 (212)

Amazonian fish migration as a social–cultural–ecological process

People and Nature, Volume 7, Issue 12, Page 3297-3312, December 2025.
Abstract In this study, we highlight the rich perspectives and explanations of fish migration held by Indigenous groups across the Amazon. We present the aspects of Indigenous cosmological stories, drawing from our exploratory review of cultural ethnographies and grey literature, as well as the authors' own experiences. We ask, how do Amazonian peoples
LuLu Victoria‐Lacy, Thiago B. A. Couto, Natalia C. Piland, Jesús Dámaso, Stephannie Fernandes, Simone Athayde, Elizabeth P. Anderson   +6 more
wiley   +1 more source

Spar genetic analysis of two invasive species of Cichla (Tucunaré) (Perciformes: Cichlidae) in the Paraná river basin = Análise genética via spar, de duas espécies de Cichla (Tucunaré) (Perciformes: Cichlidae) introduzidas na Bacia do rio Paraná

Acta Scientiarum: Biological Sciences, 2011
The introduction of exotic species in lake ecosystems has been greatly highlighted in the literature worldwide. Since introduction may threaten diversity of native fish, the issue turns up to be of paramount importance.
Giovanna Caputo Almeida-Ferreira, Alessandra Valéria de Oliveira, Alberto José Prioli, Sônia Maria Alves Pinto Prioli   +3 more
doaj  

Argulus amazonicus n.sp., a crustacean parasite of fishes from the Brazilian Amazon (Branchiura: Argulidae)

, 1986
The female of Argulus amazonicus n.sp. (Branchiura: Argulidae) is described from the branchial cavities of two Amazonian fish, Cichla ocellaris (SCHNEIDER) and Cichla temensis (HUMBOLDT)
Malta, J., Santos Silva, E.
core  

Seasonal Forest Resources Support Fish Biomass in Floodplain Lakes of an Amazonian Tributary

Freshwater Biology, Volume 70, Issue 11, November 2025.
ABSTRACT The Flood Pulse Concept is a foundational ecological theory that emphasizes the critical role of lateral connectivity between a river channel and its floodplain. Many tropical rivers inundate the surrounding floodplain in the flood stage, thereby receiving large amounts of terrestrial organic matter that can be decomposed by microbes and ...
Timothy D. Jardine, Francisco Villamarín, Joseph E. Hawes, Joao Campos‐Silva, Cristina M. Jacobi, Stephen Srayko, Alexander Pelletier, William E. Magnusson   +7 more
wiley   +1 more source

Austrodiplostomum compactum (Lutz, 1928) (Digenea, Diplostomidae) in the eyes of fishes from Paraná river, Brazil=Austrodiplostomum compactum (Lutz, 1928) (Digenea, Diplostomidae) em olhos de peixes do rio Paraná, Brasil [PDF]

Acta Scientiarum: Biological Sciences, 2012
Parasitological indexes of Austrodiplostomum compactum (Digenea, Diplostomidae) in fishes from the Paraná River, Presidente Epitácio region, state of São Paulo, Brazil, and their relationship with climate and water quality are evaluated.
Maurício Laterça Martins, José Luis Pedreira Mourino, Haroldo Kazuyuki Takahashi, Vamilton Alvares Santarem, Natalia Marchiori, Rosemeire de Souza Santos   +5 more
doaj  

Diagnóstico da piscicultura na Bacia do Alto Taquari - MS. [PDF]

, 2011
O objetivo deste trabalho é a caracterização da situação da piscicultura na bacia do alto Taquari (BAT) a fim de se propor melhorias no seu sistema, viabilizando-o como meio alternativo de renda para os produtores da região.
ROTTA, M. A.
core   +1 more source

Parasites Are Paramount: Vertical Trophic Positions of Parasitic Catfishes in a Tropical River Food Web

Ecology of Freshwater Fish, Volume 34, Issue 4, October 2025.
ABSTRACT The Neotropical catfish family Trichomycteridae contains parasitic fishes that include scale and mucus feeders (subfamily Stegophilinae) and blood feeders (i.e., ‘candirus’, subfamily Vandelliinae). The influence of parasitic catfishes on food web dynamics is unknown.
Carmen G. Montaña, Chase Nimee, Sophie Scott, Megan Beeksma, Kendall Hasting, Takiya Jackson, Leslie Kelso‐Winemiller, Kirk O. Winemiller   +7 more
wiley   +1 more source

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

Neotropical 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, Mário Luis Orsi, Fernando M. Pelicice, Valter M. Azevedo-Santos, Jean R. S. Vitule, Dilermando P. Lima-Junior, Marcelo F. G. Brito   +6 more
doaj   +1 more source

Relação peso-comprimento e fator de condição relativo (Kn) do pirarucu Arapaima gigas Schinz, 1822 (Arapaimidae) em cultivo semi-intensivo no estado do Amazonas, Brasil. [PDF]

, 2017
O pirarucu Arapaima gigas (Osteoglossiformes, Arapaimidae), peixe da bacia amazônica, apresenta alta taxa de crescimento e tolerância a alta densidade de estocagem, tem rusticidade ao manuseio e aceita alimentação artificial quando treinado no início da ...
ANDRADE, S. M. S., ARAÚJO, C. S. O., DIAS, M. T., GOMES, A. L. S.   +3 more
core  

Methylmercury human exposure in riverine villages of Tapajos basin, Pará State, Brazil [PDF]

, 2000
Evaluation of total human exposure to mercury and methylmercury was effected in riverine villages along the Tapajos river and in the metropolitan area of Belem city, state of Para, Brazil, by using total mercury and methylmercury concentrations in hair ...
AMORAS, Walter Wanderley, BACELAR, Maria Denise Ribeiro, CARDOSO, Bernardo da Silva, GUIMARÃES, Geraldo de Assis, HARADA, Masazume, MAGNO, Carlos, NAKANISHI, Junko, OIKAWA, Teiichi, PINHEIRO, Maria da Conceição Nascimento, QUARESMA, Manoel, VIEIRA, José Luiz Fernandes, XAVIER, Marília Brasil   +11 more
core   +3 more sources