Results 81 to 90 of about 4,279 (211)

Primeira ocorrência de Polyacanthorhynchus macrorhynchus (Acanthocephala: Polyacanthorhynchidae) em pirarucu Arapaima gigas cultivado no Brasil. [PDF]

open access: yes, 2011
Resumo ...
DIAS, M. T.   +5 more
core  

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

Anthropogenic Factors Drive the Depletion of Fish Functional Β Diversity Within and Outside Two National Reserves in the Peruvian Amazon

open access: yesAquatic Conservation: Marine and Freshwater Ecosystems, Volume 35, Issue 12, December 2025.
ABSTRACT Understanding the impact of human activities on fish communities is critical for the effective conservation of Amazonian ecosystems. In this study, we sampled environmental DNA (eDNA) from 17 sites (lakes and rivers) in two Peruvian national reserves, Pacaya‐Samiria and Allpahuayo‐Mishana, using a metabarcoding approach with four genetic ...
B. Prat   +6 more
wiley   +1 more source

Fatty acid composition and influence of temperature on the lipid stability of Arapaima gigas meat

open access: yesBrazilian Journal of Food Technology, 2019
The nutritional quality and lipid stability of Arapaima gigas fillets were investigated. A total of 27.32 kg of A. gigas fillets were obtained and the proximate composition and fatty acid profile immediately determined.
Nathália Miranda Coutinho   +6 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  

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

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

Amazonian fish migration as a social–cultural–ecological process

open access: yesPeople and Nature, Volume 7, Issue 12, Page 3297-3312, December 2025.
Abstract In this study, we highlight the rich perspectives and explanations of fish migration held by Indigenous groups across the Amazon. We present the aspects of Indigenous cosmological stories, drawing from our exploratory review of cultural ethnographies and grey literature, as well as the authors' own experiences. We ask, how do Amazonian peoples
LuLu Victoria‐Lacy   +6 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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