Results 61 to 70 of about 4,832 (194)

Conservation strategies for Arapaima gigas (Schinz, 1822) and the Amazonian várzea ecosystem

Brazilian Journal of Biology
In the present study we report a spatial autocorrelation analysis of molecular data obtained for Arapaima gigas, and the implication of this study for conservation and management. Arapaima is an important, but critically over-exploited giant food fish of
T. Hrbek, M. Crossa, IP. Farias
doaj   +1 more source

Relação peso-comprimento e fator de condição relativo (Kn) do pirarucu Arapaima gigas Schinz, 1822 (Arapaimidae) em cultivo semi-intensivo no estado do Amazonas, Brasil. [PDF]

, 2017
O pirarucu Arapaima gigas (Osteoglossiformes, Arapaimidae), peixe da bacia amazônica, apresenta alta taxa de crescimento e tolerância a alta densidade de estocagem, tem rusticidade ao manuseio e aceita alimentação artificial quando treinado no início da ...
ANDRADE, S. M. S., ARAÚJO, C. S. O., DIAS, M. T., GOMES, A. L. S.   +3 more
core  

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

Rendimento de carne de pirarucu, Arapaima gigas (Cuvier). [PDF]

, 2018
bitstream/item/42268/1/Boletim-Pesquisa-150-CPATU ...
DUTRA, S., IMBIRIBA, E. P., LOURENÇO JUNIOR, J. de B.   +2 more
core  

Sustainable Bioplastics From Land and Sea Waste: Structure, Thermal Stability, and Mechanical Behavior Under Accelerated Weathering

Journal of Applied Polymer Science, Volume 143, Issue 6, February 10, 2026.
Schematic representation of the fabrication of sustainable bioplastics derived from fish scales (FS) and orange peels (OP), modified with EDC/NHS and PCL. The films were subjected to accelerated weathering to evaluate changes in structural integrity, thermal stability, and mechanical behavior.
Israel Núñez‐Tapia, Rafael G. Suarez, María Cristina Piña Barba   +2 more
wiley   +1 more source

Genetic Diversity, Population Structure and Differentiation of Farmed and Wild African Catfish (Clarias gariepinus) in Nigeria

Evolutionary Applications, Volume 19, Issue 2, February 2026.
ABSTRACT The African catfish (Clarias gariepinus) is a commercially important species, for both fisheries and aquaculture, and is now the most commonly farmed fish in sub‐Saharan Africa. However, knowledge about the genetic diversity and population structure of natural and farmed populations, which is crucial for effective conservation and sustainable ...
Mark K. Sanda, Neil B. Metcalfe, Maria Capstick, Jenna Nichols, Barbara K. Mable   +4 more
wiley   +1 more source

Estrutura genética do pirarucu (Arapaima gigas) na região de Santarém, PA, Brasil. [PDF]

, 2013
O pirarucu (Arapaima gigas) é um peixe encontrado na Bacia Amazônica e Araguaia/Tocantins que possui grande importância econômica para populações locais.
ALMEIDA, I. G. de, CAETANO, A. R., FARIA, M. T. de, IANELLA, P., PAIVA, S. R.   +4 more
core  

Policy and market strategies of the ecotourism industry in developing countries [PDF]

, 2019
Ecotourism is a growing industry around the world. However, in more recent years, ecotourism has become more than just a business. Developing nations have seen ecotourism contribute meaningfully to the local economy, the environment and indigenous ...
Smith, James Burleson, III
core   +1 more source

Chromosomal characterization of the bonytongue Arapaima gigas (Osteoglossiformes: Arapaimidae) [PDF]

Neotropical Ichthyology, 2006
The mitotic chromosomes of the pirarucu Arapaima gigas inhabiting the middle Araguaia River and collected in the municipality of Araguaiana (MT, Brazil) were studied. The chromosomes were analyzed through Giemsa staining, C-banding, Ag-NOR staining and in situ hybridization using an 18S rRNA gene probe. The karyotype had 2n=56 comprising 14 biarmed and
Marques, Debora Karla, Venere, Paulo Cesar, Galetti Junior, Pedro Manoel   +2 more
openaire   +4 more sources

Fisher Behavior While Illegally Fishing for Atlantic Goliath Grouper (Epinephelus itajara, Epinephelinae) on the Amazon Continental Shelf, Brazil

Fisheries Management and Ecology, Volume 33, Issue 1, Page 1-13, February 2026.
ABSTRACT In 2002, the Brazilian government banned fishing for Goliath grouper, Epinephelus itajara (Lichtenstein, 1822), through 2007. This grouper was the first fish species targeted by a specific law in Brazilian environmental legislation. Grouper stocks showed no signs of recovery, so the ban was renewed multiple times since 2007. Official estimates
Felipe Moreira de Souza, Voyner Ravena Cañete, Paulo Emílio Costa Santos, Bianca Bentes   +3 more
wiley   +1 more source