Results 1 to 10 of about 894 (181)

Predation on pirarucu larvae by opportunistic fish species

Acta Amazonica, 2022
One of the constraints in pirarucu, Arapaima gigas farming is the reproduction in captivity, due to inconsistent number of spawning events per reproductive cycle, thus, unreliable availability of juvenile fish. This is a first-hand report on predation of
Adriana Ferreira LIMA, Anderson Guilherme Pereira dos REIS, Alberto AKAMA, Patricia Oliveira MACIEL-HONDA   +3 more
doaj   +4 more sources

Ammonia Increases the Stress of the Amazonian Giant Arapaima gigas in a Climate Change Scenario [PDF]

Animals, 2023
Ammonia is toxic to fish, and when associated with global warming, it can cause losses in aquaculture. In this study, we investigated the physiological and zootechnical responses of Arapaima gigas to the current scenarios and to RCP8.5, a scenario ...
José Fernando Paz Ramírez, Renan Diego Amanajás, Adalberto Luis Val   +2 more
doaj   +2 more sources

Isolation and Characterization of the Arapaima gigas Growth Hormone (ag-GH) cDNA and Three-Dimensional Modeling of This Hormone in Comparison with the Human Hormone (hGH) [PDF]

Biomolecules, 2023
In a previous work, the common gonadotrophic hormone α-subunit (ag-GTHα), the ag-FSH β- and ag-LH β-subunit cDNAs, were isolated and characterized by our research group from A.
Eliana Rosa Lima, Renan Passos Freire, Miriam Fussae Suzuki, João Ezequiel Oliveira, Vanessa Luna Yosidaki, Cibele Nunes Peroni, Thaís Sevilhano, Moisés Zorzeto, Lucas Simon Torati, Carlos Roberto Jorge Soares, Igor Daniel de Miranda Lima, Thales Kronenberger, Vinicius Gonçalves Maltarollo, Paolo Bartolini   +13 more
doaj   +2 more sources

Global Research Trends of Black Soldier Fly Larvae (<i>Hermetia illucens</i>) Meal in Aquaculture From a Scientometric Perspective (2007-2025). [PDF]

Aquac Nutr
Black soldier fly larvae (Hermetia illucens) meal (BSFLM) has gained increasing attention over the past two decades as a sustainable and functional ingredient in aquafeeds. This study presents the first scientometric analysis of BSFLM research in aquaculture from 2007 to 2025, using data from Scopus and Web of Science (WOS).
Camperio J, Carroza-Meza CH, Suarez J, Benetti D.   +3 more
europepmc   +2 more sources

The complete mitochondrial genome of the pirarucu (Arapaima gigas, Arapaimidae, Osteoglossiformes) [PDF]

Genetics and Molecular Biology, 2008
We sequenced the complete mitochondrial genome of the pirarucu, Arapaima gigas, the largest fish of the Amazon basin, and economically one of the most important species of the region.
Tomas Hrbek, Izeni Pires Farias
doaj   +2 more sources

Physiological responses of pirarucu (Arapaima gigas) to acute handling stress Resposta fisiológica de estresse em pirarucu (Arapaima gigas) submetido ao manuseio [PDF]

Acta Amazonica, 2007
Pirarucu (Arapaima gigas) is an obligatory air-breathing fish from the Amazon basin. Previous study showed that pirarucu juveniles present a latency period in their response to moderate stress (transportation).
Levy de Carvalho Gomes
doaj   +5 more sources

Seasonality Influence on Biochemical and Hematological Indicators of Stress and Growth of Pirarucu (Arapaima gigas), an Amazonian Air-Breathing Fish [PDF]

The Scientific World Journal, 2014
Environmental factors such as seasonal cycles are the main chronic stress cause in fish increasing incidence of disease and mortality and affecting productive performance.
Rosiely Felix Bezerra, Maria do Carmo Figueiredo Soares, Athiê Jorge Guerra Santos, Elba Verônica Matoso Maciel Carvalho, Luana Cassandra Breitenbach Barroso Coelho   +4 more
doaj   +2 more sources

Cultivo do Pirarucu (Arapaima gigas) em viveiro escavado Pirarucu (Arapaima gigas) husbandry in ponds [PDF]

Acta Amazonica, 2003
Foi avaliado o desempenho de juvenis de pirarucu em criação intensiva em viveiros escavados. Oitenta e cinco peixes com peso médio inicial de 133,3 ± 1,3g foram estocados em dois viveiros de 120m² cada (densidade de 1 peixe/3m²), com profundidade média ...
Manoel Pereira-Filho, Bruno Adan Sagratzki Cavero, Rodrigo Roubach, Daniel Rabello Ituassú, André Lima Gandra, Roger Crescêncio   +5 more
doaj   +5 more sources

Aspectos reprodutivos e perfil hormonal dos esteróides sexuais do pirarucu, Arapaima gigas (SCHINZ,1822), em condições de cativeiro Reproductive aspects and sexual steroids hormonal profiles of pirarucu, Arapaima gigas (SCHINZ,1822), in captivity conditions [PDF]

Acta Amazonica, 2010
Esta pesquisa teve como objetivo caracterizar a reprodução e o perfil hormonal dos esteróides sexuais do pirarucu, Arapaima gigas, além de validar um aspecto do dimorfismo sexual secundário.
Leonardo Bruno Barbosa Monteiro, Maria do Carmoueredo Soares, Maria Teresa Jansem Catanho, Alexandre Honczaryk   +3 more
doaj   +2 more sources

Characterization of fish-specific IFNγ-related binding with a unique receptor complex and signaling through a novel pathway. [PDF]

FEBS Open Bio
Unique signaling mechanisms of fish‐specific isoforms of IFNγ, IFNγrel 1, from the Ginbuna crucian carp have been identified. Monomeric ligand phosphorylates STAT6 and induces transcriptional activation by binding to the unique pair of receptors, Crfb5 (IFNAR1) and Crfb17 (IFNGR1‐1).
Shibasaki Y, Yabu T, Shiba H, Moritomo T, Mano N, Nakanishi T.   +5 more
europepmc   +2 more sources