Results 21 to 30 of about 609 (141)

Reproductive biology traits of two invasive fish species in Rio Doce State Park, Minas Gerais, Brazil [PDF]

Acta Limnologica Brasiliensia
Aim This study aims to analyze the reproductive biology of two invasive fish species, tucunaré (Cichla kelberi) and red piranha (Pygocentrus nattereri), introduced into the middle Rio Doce Lake system (southeastern Brazil).
Ludmila Silva Brighenti, Gabriel Rossi Diniz Costa, Thaís Paula de Araújo, Lorena Torres Oporto, Hélio Batista dos Santos, Ralph Gruppi Thomé   +5 more
doaj   +2 more sources

CONDICIONAMENTO ALIMENTAR NO DESEMPENHO ZOOTÉCNICO DO TUCUNARÉ [PDF]

, 2009
O presente trabalho teve o objetivo de realizar o treinamento alimentar de alevinos de tucunaré, Cichla monoculus, condicionando-os a alimentar-se de ração seca e, posteriormente, testar a melhor freqüência alimentar para a espécie. Durante o treinamento
SILVA, Renato Carlos Soares, ROUBACH, Rodrigo, PEREIRA-FILHO, Manoel, SOARES, Emerson Carlos   +3 more
core   +1 more source

Helminth parasites of Cichla ocellaris Bloch & Schneider, 1801 collected in the Jacaré-Pepira River, São Paulo state, Brazil

Anais da Academia Brasileira de Ciências, 2019
:Cichla ocellaris is native to the Amazon region. It is popularly known as tucunaré and is widely used for human consumption. It is difficult to breed in captivity due to its highly predatory habits, it is considered symbolic of sport fishing in Brazil ...
FELIPE F. JANUÁRIO, THAYANA GIÃO, RODNEY K. DE AZEVEDO, VANESSA D. ABDALLAH   +3 more
doaj   +1 more source

Movement of Cichla species (Cichlidae) in a Venezuelan floodplain river

Neotropical Ichthyology
In their native habitats of black- and clear-water Neotropical rivers, large predatory cichlids of the genus Cichla are an important food and recreational resource.
David J. Hoeinghaus, Craig A. Layman, D. Albrey Arrington, Kirk O. Winemiller   +3 more
doaj   +1 more source

Carbon accumulation in Amazonian floodplain lakes: A significant component of Amazon budgets?

Limnology and Oceanography Letters, Volume 2, Issue 1, Page 29-35, February 2017., 2017
Abstract The Amazon floodplains cover approximately 10% of the Amazon Basin and are composed of predominantly anoxic sediments that may store large amounts of carbon. Our study combines 210Pb derived sedimentation rates from four recently analyzed sediment cores (n = 4) with previously published organic carbon (OC) burial estimates (n = 18) to provide ...
Luciana M. Sanders, Kathryn H. Taffs, Debra J. Stokes, Christian J. Sanders, Joseph M. Smoak, Alex Enrich‐Prast, Paul A. Macklin, Isaac R. Santos, Humberto Marotta   +8 more
wiley   +1 more source

Global Dynamics of the Hastings‐Powell System

Mathematical Problems in Engineering, Volume 2013, Issue 1, 2013., 2013
This paper studies the problem of bounding a domain that contains all compact invariant sets of the Hastings‐Powell system. The results were obtained using the first‐order extremum conditions and the iterative theorem to a biologically meaningful model.
Luis N. Coria, Sebastian Anita
wiley   +1 more source

Ephemeral Earthmoving Labour Versus the Great Acceleration: (Re)producing the Flux Urban Political Ecologies of Bolivian Amazonia

Antipode, Volume 58, Issue 5, September 2026.
ABSTRACT The article investigates how Indigenous labour interacts with powerful sediment movements and flooding cycles in 23 riverine communities in Bolivian Amazonia. These interactions, we argue, transcend the binary between human labour and biophysical processes in shaping flux urban political ecologies, landscapes and human settlements that ...
Fernando Schrupp Rivero, Maria Kaika
wiley   +1 more source

DIETA DO TUCUNARÉ Cichla monoculus Agassiz, 1831- AÇUDE THOMAZ OSTERNE DE ALENCAR- SEMIÁRIDO CEARENSE [PDF]

, 2017
A análise da dieta de peixes é importante para conhecer o comportamento trófico da espécie e sua influência na estruturação da comunidade ictiofaunística.
Melo Júnior, Hênio do Nascimento; URCA, Ferreira Neto, Crisanto; Universidade Regional do Cariri, Alves, William Santana; URCA   +2 more
core   +1 more source

DESCRIÇÃO DOS OTÓLITOS DE TUCUNARÉS (Cichla sp. e Cichla monoculus) NO RESERVATÓRIO DA HIDRELÉTRICA DE VOLTA GRANDE (SP–MG)

Ciência Animal Brasileira, 2007
Objetivou-se, neste trabalho, caracterizar as sagittae de Cichla sp. e Cichla monoculus introduzidas no reservatório da Hidrelétrica de Volta Grande, assim como as relações de seu comprimento e largura com os comprimentos totais dos peixes.
Leandro Muller Gomiero, Francisco Manoel de Souza Braga   +1 more
doaj   +1 more source

Panama Canal expansion and shifts in fishing practices: A social‐ecological network approach

People and Nature, Volume 8, Issue 5, Page 1520-1532, May 2026.
Abstract Species introductions have spiked over the past two centuries due to globalization. These introductions impact ecosystems, but may also have long‐term implications for human communities. In one of the world's hubs for global shipping, the Panama Canal, a recent canal expansion has coincided with an increase in marine fishes entering the ...
Michelle Hübel, Gustavo A. Castellanos‐Galindo, Jonathan M. Jeschke, Jorge Abadia, Victor Bravo, Elizabeta Briski, Rigoberto Gonzalez, Diana Sharpe, Mark E. Torchin, Marisol P. Valverde, Lotta C. Kluger   +10 more
wiley   +1 more source