Results 91 to 100 of about 5,015 (244)

Strengthening local organisations and biodiversity-based value chains in the Andean Amazon: Leveraging the climate negotiations [PDF]

open access: yes, 2014
In the Andean Amazon, forest communities use biodiversity without depleting natural resources and promote it within local organisations and value chains.
Mikkolainen, Pétra, Pasquis, Richard
core   +1 more source

Conserved Cytogenetic Features in the Amazonian Arapaima, Arapaima gigas (Schinz 1822) from Jamari River, Rondônia–Brazil [PDF]

open access: yesThe Open Biology Journal, 2009
Specimens of Arapaima gigas from Jamari River (RO) were cytogenetically analyzed. A diploid number of 2n=56 chromosomes was found (28m-sm + 28st-a). Secondary constrictions were observed on the short arms of chromosome 3. Nucleolar Organizer Regions (NORs) were detected at the subterminal region on short arms of the third chromosomal pair by both ...
Renata da Rosa   +3 more
openaire   +1 more source

Effects of Temperature, Air Exposure Time, and Bleeding on Post‐Release Movement of Angled Channel Catfish

open access: yesFisheries Management and Ecology, Volume 32, Issue 5, Page 320-329, October 2025.
ABSTRACT Catch‐and‐release angling is an effective conservation tool only when released fish survive. Measuring the physiological response of sportfish to capture has recently been enhanced by the use of accelerometers to measure post‐release movement.
Jason M. Qualich, Michael J. Louison
wiley   +1 more source

Estudos de cestóides de peixes do Brasil

open access: yesMemorias do Instituto Oswaldo Cruz, 1974
Os autores iniciam com este trabalho um estudo sistemático de determinação dos cestóides de peixes depositados na Coleção helmintológica do Instituto Oswaldo Cruz.
A. Arandas Rego   +2 more
doaj   +1 more source

Estudo das propriedades funcionais das hemoglobinas de Osteoglossum bicirrhosum e Arapaima gigas [PDF]

open access: yesActa Amazonica, 1978
Resumo Têm sido estudados os efeitos de pH e fosfatos orgânicos no equilíbrio e propriedades cinéticas na união de ligantes das hemoglobinas de dois peixes relacionados à Amazônia, Osteoglossum bicirrhosum de respiração branquial obrigatória e Arapaima ...
Maria Isabel Galdames Portus   +7 more
doaj   +1 more source

Concentração letal (CL50) do óleo essencial de mentha piperita (lamiaceae) em pirarucus arapaima gigas. [PDF]

open access: yes, 2017
Na piscicultura, diversos produtos fitoterápicos vêm sendo usados no tratamento das parasitoses, principalmente causadas por helmintos. Mentha piperita, planta usada na medicina popular para tratar nauseas, vômitos, indigestão, desordens estomacais ...
MALHEIROS, D. F., TAVARES-DIAS, M.
core  

Potencial de criação de Pirarucu, Arapaima gigas,em cativeiro [PDF]

open access: yesActa Amazonica, 2001
O presente trabalho tem como objetivo analisar alguns aspectos do manejo da criação do pirarucu, nos itens relativos à reprodução, alevinagem, alimentação, crescimento rusticidade e aspectos econômicos. Mesmo havendo medidas de proteção, a pesca é predatória e com graves prejuízos aos estoques naturais.
openaire   +4 more sources

Sex Differentiation and Long‐Distance Gene Flow in the Elusive Antarctic Fish Aethotaxis mitopteryx

open access: yesEcology and Evolution, Volume 15, Issue 8, August 2025.
This genetic study of a rare Antarctic fish, the longfin icedevil (Aethotaxis mitopteryx) investigates population connectivity across the Weddel Sea, revealing little to no differentiation even over vast geographic distances. Unexpectedly, the strongest genetic differentiation is instead observed between male and female fishes, which suggests a ...
Luca Schiavon   +15 more
wiley   +1 more source

Camallanus tridentatus (Drasche) (Nematoda: Camallanidae): new taxonomically important morphological data

open access: yesMemorias do Instituto Oswaldo Cruz, 2009
Camallanus tridentatus is redescribed on the basis of the examination of specimens obtained from the stomach, caeca and intestine of the naturally infected arapaima Arapaima gigas (Schinz) from the Mexiana Island, Amazon River Delta, Brazil.
Cláudia Portes Santos   +1 more
doaj   +1 more source

Biomassa sustentável de juvenis de pirarucu em tanques-rede de pequeno volume. [PDF]

open access: yes, 2019
O objetivo deste trabalho foi estimar a biomassa sustentável de juvenis de pirarucu Arapaima gigas (Cuvier, 1829) mantidos em tanques-rede de pequeno volume.
CAVERO, B. A. S.   +5 more
core  

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