Results 71 to 80 of about 16,809 (196)

Estudos de cestóides de peixes do Brasil

Memorias 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, Julio C. dos Santos, Paulo P. Silva   +2 more
doaj   +1 more source

Reproductive aspects of the Amazon giant paiche (Arapaima gigas): a review

Fisheries and Aquatic Sciences
Paiche (Arapaima gigas), is a colossal freshwater fish native to the Amazon basin. Its geographic distribution spans various regions, including Brazil, Peru, Colombia, and Guyana, making it a significant component of the aquatic ecosystems in this area.
Marie Anne Gálvez Escudero, Anthony Jesús Mendoza De La Vega   +1 more
openaire   +2 more sources

Fine‐Scale Genomic Divergence in the Amazonian Pirarucu (Arapaima gigas) Highlights the Need for Local Management Strategies

Freshwater Biology, Volume 71, Issue 3, March 2026.
ABSTRACT Freshwater habitats face significant human disturbances globally, impacting food security and ecosystems. Protected areas can mitigate biodiversity loss, but limited data on population connectivity hinders conservation management. This study examines pirarucu (Arapaima gigas), a heavily exploited and threatened Amazonian fish, using genomic ...
Julia Tovar Verba, Ricardo J. Pereira, João V. Campos‐Silva, Izeni P. Farias, Tomas Hrbek, Carlos A. Peres, Joseph E. Hawes   +6 more
wiley   +1 more source

Arapaima gigas stocks have declined drastically in the lower Tocantins River in the Amazon Microregion [PDF]

Anais da Academia Brasileira de Ciências
Arapaima gigas, an emblematic species of the Amazon region and a longstanding primary fishing resource, currently holds a “Data Deficient” status on the International Union for Conservation of Nature Red List, and is listed as an endangered species in ...
DARALYNS B. MACEDO, JEANDERSON S. VIANA, HENDRYA JULIANNY P. COELHO, CAIO VITOR C. COSTA, DÁRCIA GABRIELA B. DA COSTA, ÁDRIA D. DOS SANTOS, REGIANNE M.S. CORREA, ROMMEL THIAGO J. RAMOS, MARÍLIA DANYELLE N. RODRIGUES   +8 more
doaj   +1 more source

Population decline coalescent metrics for Arapaima gigas by region.

, 2019
Population decline coalescent metrics for Arapaima gigas by region.
Fausto Foresti (284896), Adam Leão (7256120), Marcelo Crossa (7256126), Iracilda Sampaio (287329), Júlia Tovar Verba (7256123), Tomas Hrbek (393514), Izeni Pires Farias (7256117), Stuart Willis (531749), Fabio Porto-Foresti (7256129)   +8 more
core   +1 more source

Anestesia do pirarucu por aspersão da benzocaína diretamente nas brânquias Anesthesia in pirarucu by benzocaine sprays in the gills

Ciência Rural, 2010
O pirarucu (Arapaima gigas) é um peixe que pode atingir mais de 2m e 100kg. No entanto, por ser um animal de grande porte, o risco de acidentes é bastante elevado durante o manejo. Logo, anestésicos são essenciais para segurança no trabalho.
Alexandre Honczaryk, Luís Antônio Kioshi Aoki Inoue   +1 more
doaj  

Yield and composition of pirarucu fillet in different weight classes - doi: 10.4025/actascianimsci.v33i1.10843

Acta Scientiarum: Animal Sciences, 2011
The fillet yield and quantity of waste generated after processing are important for planning and evaluating the growth performance of species and systems of aquaculture production in Brazil.
Fabiola Helena dos Santos Fogaça, Elenise Gonçalves de Oliveira, Samanta Eulles Quixaba Carvalho, José Francisco de Seixas Santos   +3 more
doaj   +1 more source

Duas novas espécies de Caballerotrema (Trematoda: Echinostomatidae) do pirarucu e do aruanã (Osteoglossidae), com uma redefinição do gênero e uma redescriçào de C. brasiliense Prudhoe, 1960. [PDF]

Acta Amazonica, 1980
Resumo O gênero Caballerotrema Prudhoe, 1960, é redefinido e C. brasiliense Prudhoe, 1960, do pirarucu, Arapaima gigas (Cuvier) é redescrito. Também são descritas C. arapaimense, n. sp. do pirarucu, e C. aruanense, n.
Vernon E. Thatcher
doaj   +1 more source

Nitrogen excretion and oxygen consumption under severe hypoxia in siluriform fishes from the Amazon

Journal of Fish Biology, Volume 108, Issue 3, Page 881-893, March 2026.
Abstract Siluriform fishes collected from the Rio Negro and Rio Solimões proved to be highly resistant to aquatic hypoxia. In all four species analysed in this study, aquatic oxygen consumption significantly decreased from normoxic levels at water PO2 values near 1 kPa. Air‐breathing activity was observed only in Sturisoma sp. (Rio Negro).
Bernd Pelster, Chris M. Wood, Adalberto Luis Val   +2 more
wiley   +1 more source

Sampling areas of Arapaima gigas analyzed in the present study.

, 2019
Sampling areas of Arapaima gigas analyzed in the present study.
Fausto Foresti (284896), Adam Leão (7256120), Marcelo Crossa (7256126), Iracilda Sampaio (287329), Júlia Tovar Verba (7256123), Tomas Hrbek (393514), Izeni Pires Farias (7256117), Stuart Willis (531749), Fabio Porto-Foresti (7256129)   +8 more
core   +1 more source