Results 11 to 20 of about 1,504 (157)

100‐year time series reveal little morphological change following impoundment and predator invasion in two Neotropical characids [PDF]

Evolutionary Applications, 2019
Human activities are dramatically altering ecosystems worldwide, often resulting in shifts in selection regimes. In response, natural populations sometimes undergo rapid phenotypic changes, which, if adaptive, can increase their probability of ...
Ilke Geladi, Luis Fernando De León, Mark E. Torchin, Andrew P. Hendry, Rigoberto González, Diana M.T. Sharpe   +5 more
doaj   +2 more sources

A pesca comercial dos "tucunarés” Cichla spp. (Perciformes, Cichlidae) no reservatório da uhe-tucuruí­­, rio Tocantins, PA

Boletim do Instituto de Pesca, 2018
Este estudo descreve a pesca comercial dos "tucunarés" Cichla spp., no Baixo Rio Tocantins-PA, no reservatório da UHE-Tucuruí­­, em relação í­Â s artes de pesca, estratégia dos pescadores, ambientes explorados, sazonalidade e aspectos sociais e ...
Marília Cunha Botelho ALVES, Ronaldo Borges BARTHEM   +1 more
doaj   +1 more source

Linking rivers, mixing faunas: How artificial connectivity between the Middle and Upper Paraná River basins shapes fish diversity in a tributary of the Itaipu Reservoir, Brazil. [PDF]

J Fish Biol
Abstract This work aimed to investigate the distribution and occurrence of fish species along the São Francisco Falso Braço Norte (SFFBN) River basin, a tributary of the Middle Paraná River basin now artificially connected to the Upper Paraná ecoregion, to evaluate how such connectivity may affect the biogeographic distribution and regional composition
Kampfert LEP, Maicrovicz JC, Blanco DR, Lange D, Pavanelli CS, Brandão H.   +5 more
europepmc   +2 more sources

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

Conserv 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, Vieira KC, Pereyra PER, Tomazoni-Silva LH, Alves IA, Bezerra JG, Dutra MCF, Keppeler FW, Nunes CB, Cunha CV, Hallwass G.   +10 more
europepmc   +2 more sources

Development of a non-lethal stomach content analysis method for freshwater eels: An empirical evaluation of the tube method for Anguilla marmorata. [PDF]

J Fish Biol
Abstract Understanding the feeding habits of predatory fish is essential for unravelling food web structures and implementing conservation strategies in riverine ecosystems. However, conventional lethal stomach content analysis methods are not necessarily appropriate for long‐term dietary studies, particularly for threatened species, as they require ...
Maeda T, Itakura H, Wakiya R, Kimura S.
europepmc   +2 more sources

Artisanal fisheries of the Xingu River basin in Brazilian Amazon [PDF]

Brazilian Journal of Biology, 2015
The present study characterises the commercial fisheries of the basin of the Xingu River, a major tributary of the Amazon River, between the towns of Gurupá (at the mouth of the Amazon) and São Félix do Xingu.
VJ. Isaac, MC. Almeida, REA. Cruz, LG. Nunes   +3 more
doaj   +3 more sources

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

Biodiversidade 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

Peacock bass mortality associated with catch-and-release sport fishing in the Negro River, Amazonas State, Brazil [PDF]

Acta Amazonica, 2014
Sport fishing for peacock bass Cichla spp. in the Brazilian Amazon has increased in popularity and attracts anglers who generate significant economic benefits in rural regions.
Mario J. F. Thomé-Souza, Michael J. Maceina, Bruce R. Forsberg, Bruce G. Marshall, Álvaro L. Carvalho   +4 more
doaj   +2 more sources

Conhecimento ecológico local utilizado para cogestão na pesca: o caso tucunaré, Cichla spp (cichlidae), na Amazônia Central, Brasil / Local ecological knowledge used for comanagement in fisheries: case tucunaré, Cichla spp (cichlidae), in Central Amazonia, Brazil

Brazilian Journal of Animal and Environmental Research, 2021
O tucunare e um peixe muito valorizado pela culinaria local, por apresentar uma carne de alta qualidade na preparacao de pratos tipicos regionais. Alem disso, e um peixe bastante perseguido pelos praticantes de pesca esportiva, devido algumas especies atingirem grande porte, apresentar um ataque violento a isca e, tambem ter o comportamento agressivo ...
Liane Galvão de Lima, Arlene Oliveira Souza, Vandick da Silva Batista   +2 more
openaire   +2 more sources

Análise de estoque do tucunaré (Cichla spp) comercializado no mercado pesqueiro de Porto Velho (Rondônia)

Research, Society and Development, 2022
Na região amazônica o Tucunaré (Cichla spp) é bastante apreciado na pesca comercial e esportiva, com isso compreender suas características biológicas é essencial para o manejo e conservação da espécie. Este trabalho teve como objetivo analisar a situação do estoque e dinâmica pesqueira do tucunaré, comercializado no mercado pesqueiro de Porto Velho ...
Kassio Pereira das Neves, Igor Rechetnicow Alves Sant' Anna, Edson Rubens Ferreira Rodrigues, Carolina Rodrigues da Costa Doria   +3 more
openaire   +1 more source