Results 21 to 30 of about 167 (55)

TOXICIDADE AGUDA E HISTOPATOLOGIA DO FÍGADO DE LARVAS DE TRAIRÃO (Hoplias lacerdae) EXPOSTAS À SOLUÇÃO AQUOSA DE FORMALDEÍDO A 10% [PDF]

, 2005
O objetivo deste trabalho foi estimar a concentração letal 50% (CL (I) 50-96h) da solução aquosa de formaldeído a 10% para larvas de trairão (Hoplias lacerdae) e avaliar os aspectos histopatológicos no fígado das larvas expostas a concentrações subagudas.
FUJIMOTO, RODRIGO YUDI, PORTELLA, MARIA CÉLIA, LUZ, RONALD KENNEDY, MARTINS, MAURÍCIO LATERÇA, DA CRUZ, CLAUDINEI   +4 more
core   +1 more source

Serologically defined variations in malaria endemicity in Pará state, Brazil.

PLoS ONE, 2014
BackgroundMeasurement of malaria endemicity is typically based on vector or parasite measures. A complementary approach is the detection of parasite specific IgG antibodies. We determined the antibody levels and seroconversion rates to both P.
Maristela G Cunha, Eliane S Silva, Nuno Sepúlveda, Sheyla P T Costa, Tiago C Saboia, João F Guerreiro, Marinete M Póvoa, Patrick H Corran, Eleanor Riley, Chris J Drakeley   +9 more
doaj   +1 more source

Eco-epidemiologia dos arbovírus na área de influência da rodovia Cuiabá-Santarém (BR 163), Estado do Pará, Brasil Arbovirus eco-epidemiology in the area affected by the Cuiabá-Santarém Highway (BR-163), Pará State, Brazil

Cadernos de Saúde Pública, 2009
O presente estudo descreve os aspectos eco-epidemiológicos sobre arbovírus nos Municípios de Novo Progresso e Trairão, Estado do Pará, Brasil, na área de influência da BR 163.
Marcio Roberto Teixeira Nunes, Taciana Fernandes Souza Barbosa, Lívia Medeiros Neves Casseb, Joaquim Pinto Nunes Neto, Nazaré de Oliveira Segura, Hamilton Antônio de Oliveira Monteiro, Eliana Vieira Pinto, Samir Mansour Casseb, Jannifer de Oliveira Chiang, Lívia Caricio Martins, Daniele Barbosa de Almeida Medeiros, Pedro Fernando da Costa Vasconcelos   +11 more
doaj   +1 more source

Circulation of hantaviruses in the influence area of the Cuiabá-Santarém Highway

Memorias do Instituto Oswaldo Cruz, 2010
We describe evidence of circulation of hantaviruses in the influence area of the Santarém-Cuiabá Highway (BR-163) in the Brazilian Amazon through the prevalence of specific antibodies against hantaviruses in inhabitants living in four municipalities of ...
Daniele BA Medeiros, Elizabeth S Travassos da Rosa, Aparecido AR Marques, Darlene B Simith, Adriana R Carneiro, Jannifer O Chiang, Ivy TE Prazeres, Pedro FC Vasconcelos, Márcio RT Nunes   +8 more
doaj   +1 more source

Abiotic drivers of co‐occurrence and diversity patterns of Calopterygidae species in Amazonian protected freshwaters

Ecological Entomology, Volume 51, Issue 2, Page 235-249, April 2026.
Species co‐occurrences rely on their ability to explore similar or distinct available resources, and possible niche overlap can prevent their presence and establishment in a given site Damselflies of the Calopterygidae family demonstrated negative co‐occurrences in streams inside and outside PAs, highlighting that their ecological similarity is ...
Joás Silva Brito, Everton Cruz Silva, Gabriel Martins Cruz, Victor Rennan Santos Ferreira, Rafael Costa Bastos, Josinete Sampaio Monteles, Cristian Camilo Mendoza‐Penagos, Fernando Geraldo Carvalho, José Max Barbosa Oliveira‐Junior, Karina Dias‐Silva, Thaisa Sala Michelan, Luciano Fogaça de Assis Montag, Lilian Casatti, Leandro Juen   +13 more
wiley   +1 more source

Vitamin C in dits for trairão fingerlings Hoplias lacerdae [PDF]

, 2007
Para avaliar o efeito da suplementação com diferentes níveis de vitamina C em dietas para o trairão (Hoplias lacerdae) foram realizados dois experimentos.
Kasai, Rodrigo Yutaka Dichoff
core  

New insights into the putative XX/XY sex chromosomal system in blue‐eyed red‐fin pleco Hypostomus soniae (Siluriformes, Loricariidae)

Journal of Fish Biology, Volume 108, Issue 1, Page 92-102, January 2026.
Abstract Blue‐eyed red‐fin pleco Hypostomus soniae (family Loricariidae) presented a putative sex system XX/XY in early stage. Aiming to explore the inter‐populational karyotypic variation and proposed emergence of the XX/XY system, we studied 13 H. soniae individuals (6 males, 7 females) from the Tapajós River.
Luan Aércio Melo Maciel, Renata Coelho Rodrigues Noronha, Bruno Rafael Ribeiro de Almeida, Manoella Gemaque Cavalcante, Cleusa Yoshiko Nagamachi, Julio Cesar Pieczarka, Luís Reginaldo R. Rodrigues   +6 more
wiley   +1 more source

Larval morphology of Hoplias lacerdae Miranda Ribeiro, 1908 (Characiformes, Erythrinidae), from hatching to metamorphosis, related to exogenous food capture ability [PDF]

Biotemas, 2009
For the accomplishment of this work, 510 specimens of Hoplias lacerdae were used from one to 30 days after hatching, with the objective of studying the mesoscopic morphological characteristics that enable this species, in the initial phases of its ...
Cláudia Maria Reis Raposo Maciel, Alaor Maciel Júnior, Juarez Lopes Donzele, Eduardo Arruda Teixeira Lanna, Eliane Menin   +4 more
doaj  

Efeitos de fertilização na biomassa e qualidade nutricional do zooplâncton utilizado para alimentação de alevinos na estação de hidrobiologia e piscicultura de Furnas, MG

Acta Scientiarum: Animal Sciences, 2008
O estudo objetivou avaliar os efeitos da adição intensiva de dejetos orgânicos e de nutrientes na qualidade do zooplâncton obtido em tanques de plâncton, empregado na alimentação de alevinos de “trairão” (Hoplias lacerdae).
Raquel Magalhães Santeiro, Ricardo Motta Pinto-Coelho   +1 more
doaj   +1 more source

Anatomy of the buccopharyngeal cavity of trairão, Hoplias Lacerdae Miranda Ribeiro, 1908 (Characiformes, Erythrinidae) [PDF]

Biotemas, 2009
We studied the buccopharyngeal cavity anatomy of 20 male and female trairão, Hoplias lacerdae (Miranda Ribeiro, 1908) specimens, with 24.41cm average standard-length, fixed in 4% formalin aqueous solution and/or diaphanized and colored with alizarin and ...
Cláudia Maria Reis Raposo Maciel, Alaor Maciel Júnior, Eduardo Arruda Teixeira Lanna, Eliane Menin   +3 more
doaj