Results 11 to 20 of about 25,989 (157)

Fish on Fire: Shifts in Amazonian fish communities after floodplain forest fires

open access: yesJournal of Applied Ecology, Volume 60, Issue 8, Page 1637-1646, August 2023., 2023
Amazonian fish communities change after floodplain forest fires. Unburnt forests have diverse fish communities, with a large proportion of unique and small omnivorous species. In contrast, carnivores and detritivores become more common in fire scars and white‐sand savannas formed after forest fires. Less omnivore fish after forest fires can reduce tree
Arnold Lugo‐Carvajal   +3 more
wiley   +1 more source

Interaction of feeding frequency and feeding rate on growth, nutrient utilization, and plasma metabolites of juvenile genetically improved farmed Nile tilapia, Oreochromis niloticus

open access: yesJournal of the World Aquaculture Society, Volume 53, Issue 2, Page 500-515, April 2022., 2022
Abstract We evaluated the possible interaction between feeding frequency (FF) and feeding rate (FR) on growth, nutrient utilization, body composition, and plasma metabolites of juvenile Nile tilapia, Oreochromis niloticus (6.57 g). We tested three FFs: two, four, and six times a day, and two FRs: apparent satiation (AS) or restricted regime (RR ...
Douglas I. Cadorin   +3 more
wiley   +1 more source

Fisheries management influences phytoplankton biomass of Amazonian floodplain lakes

open access: yesJournal of Applied Ecology, Volume 58, Issue 4, Page 731-743, April 2021., 2021
Tropical freshwaters fisheries typically assume that fish biomass is controlled by bottom‐up mechanisms, so that overexploitation of large predators would not affect overall ecosystem productivity. Our results, however, show that top‐down forces are important drivers of primary productivity in tropical lakes, above and beyond the effects of bottom‐up ...
João Vitor Campos‐Silva   +6 more
wiley   +1 more source

Aproveitamento e características da gordura cavitária do tambaqui, Colossoma macropomum Cuvier 1818 () [PDF]

open access: yesActa Amazonica, 1980
Resumo O presente trabalho refere-se a um estudo da gordura cavitária do Colossoma macropomum, com relação às características físicas e químicas e seu potencial como gordura de cozinha.
Francisco Pereira Castelo   +2 more
doaj   +1 more source

Perulernaea gamitanae (Copepoda: Lernaeidae) parasitizing tambaqui (Colossoma macropomum) (Characidae) and the hybrids tambacu and tambatinga, cultured in northern Brazil

open access: yesArquivo Brasileiro de Medicina Veterinária e Zootecnia, 2011
The infestation rate in Colossoma macropomum, hybrid tambacu (C. macropomum x Piaractus mesopotamicus) and hybrid tambatinga (C. macropomum x Piaractus brachypomum) with Perulernaea gamitanae Thatcher and Paredes, 1985 from two fish farms in Amapá State,
M. Tavares-Dias   +5 more
doaj   +1 more source

Helminthes and protozoan of farmed pirarucu (Arapaima gigas) in eastern Amazon and host-parasite relationship

open access: yesArquivo Brasileiro de Medicina Veterinária e Zootecnia, 2013
The parasitofauna in the giant Amazon basin, pirarucu (Arapaima gigas Schinz, 1822) cultured in fish farms from the state of Amapá, in eastern Amazonia (Brazil) was investigated.
R.G.B. Marinho   +6 more
doaj   +1 more source

O Departamento Peixe/Pesca [PDF]

open access: yesActa Amazonica, 1981
Resumo Este artigo relata o histórico da formação do atual Departamento Peixe/Pesca do Instituto Nacional de Pesquisas da Amazônia. Atualmente o Departamento é formado por seis divisões.
Emiko Kawakami de Resende   +7 more
doaj   +1 more source

Alterações post-mortem em tambaqui (Colossoma macropomum) conservados em gelo [PDF]

open access: yesCiência Rural, 2006
Este estudo apresenta a avaliação da qualidade de tambaqui (Colossoma macropomum) conservado em gelo. Foi determinado o tempo de vida útil por meio de avaliações sensoriais e análises de pH e bases voláteis totais (N-BVT) no músculo.
Neiva Maria de Almeida   +3 more
doaj   +1 more source

Diphyllobothrium latum infection in a non-endemic country: case report Infecção pelo Diphyllobothrium latum em país não endêmico: relato de caso

open access: yesRevista da Sociedade Brasileira de Medicina Tropical, 2008
Diphyllobothriasis, which is rarely described in Brazil, was reported initially as a travelers’ disease and as an accidental infection in individuals who ate raw freshwater fish.
Mauricio M. Llaguno   +5 more
doaj   +1 more source

Observações práticas de anestesia em pirarucu (Arapaima gigas) por aspersão direta nas brânquias do eugenol em solução aquosa. [PDF]

open access: yes, 2019
O pirarucu é o maior peixe de água doce do mundo. Ele pode atingir mais de 2 m de comprimento e 100 kg, sendo sua carne muito apreciada nos mercados consumidores do Norte do Brasil.
HONCZARYK, A., INOUE, L. A. K. A.
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