Results 11 to 20 of about 2,504 (156)

Metacercárias de Diplostomum (Austrodiplostomum) compactum Lutz, 1928 (Digenea, Diplostomidae) em peixes do rio Paraná, Brasil. Prevalência, sazonalidade e intensidade de infecção

open access: yesActa Scientiarum: Biological Sciences, 2008
Avaliou-se a ocorrência de Diplostomum (Austrodiplostomum) compactum (Digenea: Diplostomidae) no globo ocular de Plagioscion squamosissimus (corvina) e Cichla ocellaris (tucunaré), capturados mensalmente, no rio Paraná, Presidente Epitácio, Estado de São
Rosemeire de Souza Santos   +4 more
doaj   +1 more source

Introduced species in the Pantanal : implications for conservation [PDF]

open access: yes, 2011
O uso da terra e a ocupação humana nos hábitats naturais do Pantanal têm facilitado a introdução de espécies invasivas de plantas e animais, incluindo espécies domésticas.
Alho, Cleber José Rodrigues   +3 more
core   +2 more sources

Níveis de mercúrio em peixes consumidos pela comunidade indígena de Sai Cinza na Reserva Munduruku, Município de Jacareacanga, Estado do Pará, Brasil Mercury levels in fish consumed by the Sai Cinza indigenous community, Munduruku Reservation, Jacareacanga County, State of Pará, Brazil

open access: yesCadernos de Saúde Pública, 1999
O estudo consiste em avaliar os níveis de mercúrio no pescado consumido pela comunidade indígena de Sai Cinza (Reserva Munduruku) no Estado do Pará, e associá-los com os hábitos de consumo da população.
Edilson da Silva Brabo   +4 more
doaj   +1 more source

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

open access: yesAnais 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   +3 more
doaj   +1 more source

Aspectos da espermatogênese de tucunaré, Cichla ocellaris Schneider, 1801 (TELEOSTEI, CICHLIDAE). [PDF]

open access: yesActa Amazonica, 1986
São descritos os eventos citológicos sequenciais da espermatogênese de Cichla ocellaris (tucunaré) desde o espermatócito primário até o espermatozóide maduro.
Carminda da Cruz Landim   +1 more
doaj   +1 more source

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

open access: yesNeotropical 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   +3 more
doaj   +1 more source

Proteocephalid cestode infection in tucunaré Cichla sp. (Osteichthyes: Cichlidae) from Paraná River, São Paulo

open access: yesArquivo Brasileiro de Medicina Veterinária e Zootecnia, 2011
The occurrence of proteocephalid cestodes in tucunaré Cichla sp., captured monthly, between August 2000 and August 2001, in Paraná River, Presidente Epitácio, SP, was evaluated.
R.S. Santos   +6 more
doaj   +1 more source

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

open access: yesLimnology 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   +8 more
wiley   +1 more source

Global Dynamics of the Hastings‐Powell System

open access: yesMathematical 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

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