Results 1 to 10 of about 2,504 (156)

Importance and spatial patterns of invisible fisheries in Amazonian clear-water rivers as revealed by fisher knowledge and collaboration. [PDF]

open access: yesConserv Biol
The graphical abstract highlights the research collaboration with fishers through interviews to record fishers' knowledge and participatory monitoring, to provide data on small‐scale fisheries in three clear water rivers (Trombetas, Tapajos and Tocantins).
Silvano RAM   +10 more
europepmc   +2 more sources

Community of Monogenea in populations of Cichla monoculus from two tributaries of the Amazon River in the Northern Brazil [PDF]

open access: yesHelminthologia, 2019
This study compared the monogeneans community in C. monoculus from the Tapajós River (state of Pará) and Jari River (state of Amapá), northern Brazil.
Oliveira M. S. B.   +3 more
doaj   +2 more sources

Associação de marcadores moleculares SNP com o conteúdo de ácido linolênico em sementes de soja [PDF]

open access: yesPesquisa Agropecuária Brasileira, 2013
O objetivo deste trabalho foi validar a associação de marcadores moleculares do tipo "single nucleotide polymorphism" (SNP) para os genes FAD3A, FAD3B e FAD3C com o conteúdo de ácido linolênico (18:3) em sementes de soja e analisar a influência dos ...
Marcos de Oliveira Pinto   +3 more
doaj   +3 more sources

Community-led assessment of risk from exposure to mercury by native Amerindian Wayana in Southeast Suriname. [PDF]

open access: yesJ Environ Public Health, 2012
This study was a collaboration between Western public health researchers and Suriname indigenous communities. The question asked was “how can Western researchers effectively engage traditional indigenous communities in Suriname, South America, in public health research”. The approach used a combination of Participatory Action Research methods in which “
Peplow D, Augustine S.
europepmc   +2 more sources

Genetic characterization of native and introduced populations of the neotropical cichlid genus Cichla in Brazil [PDF]

open access: yesGenetics and Molecular Biology, 2009
A molecular phylogenetic analysis based on mitochondrial 16S ribosomal DNA and Control Region sequences from native and introduced populations was undertaken, in order to characterize the introduction of Cichla (peacock bass or tucunaré) species in ...
Daniel Cardoso de Carvalho   +6 more
doaj   +2 more sources

Estrutura populacional de espécies do gênero Cichla (Osteichthyes: Cichliformes) introduzidas em diferentes regiões brasileiras

open access: yesBiodiversidade Brasileira, 2022
Os sistemas de água doce neotropicais são importantes abrigos da biodiversidade global de peixes. Os tucunarés (Cichla spp) são peixes endêmicos dessa região biogeográfica, ocorrendo naturalmente no Brasil e outros países da América do Sul como ...
Lucas Cabrera Monteiro
doaj   +1 more source

Fisheries in a border area of the Moxos Lowlands (Bolivia) after invasion of Arapaima gigas

open access: yesAquaculture, Fish and Fisheries, Volume 3, Issue 2, Page 196-210, April 2023., 2023
We characterized fisheries in the area of the port city of Riberalta (upper Madeira River basin) and evaluated the contribution of an invasive species (Arapaima gigas) to the landings. A. gigas represented 57.6% of the overall economic value of fish in the region.
Gabriela Rico Lopez   +4 more
wiley   +1 more source

Obtaining 5S rDNA molecular markers for native and invasive Cichla populations (Perciformes – Cichlidae), in Brazil - DOI: 10.4025/actascibiolsci.v30i1.1467

open access: yesActa Scientiarum: Biological Sciences, 2008
O gene DNAr 5S é informativo e possui altas taxas de conservação ao longo do genoma dos eucariotos, possuindo características únicas que são hereditárias.
Viviane Fátima de Oliveira   +3 more
doaj   +1 more source

Aspectos nutritivos de alguns peixes da Amazônia [PDF]

open access: yesActa Amazonica, 1982
Resumo Onze espécies de peixes, os mais consumidos pela população de Manaus em 1973-74, foram analisados quanto aos seus conteúdos de: umidade, cinzas, proteína, gordura, energia e zinco.
Yolanda Rebêlo da Rocha   +3 more
doaj   +1 more source

Protease exógena em dietas para juvenis de tucunaré-paca (Cichla sp.) Exogenous protease in diets for tucunaré paca (Cichla sp.) juvenile

open access: yesRevista Brasileira de Zootecnia, 2008
Neste experimento foi analisada a atividade enzimática da protease exógena nos tratos digestórios dos peixes e, posteriormente, o desempenho zootécnico dos juvenis de tucunaré-paca (Cichla sp.) por intermédio da inclusão de três níveis de protease ...
Emerson Carlos Soares   +3 more
doaj   +1 more source

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