Results 61 to 70 of about 1,591 (196)
Acta Amazonica, 2012 This study characterized morphologically Trichodina heterodentata Duncan, 1977 from cultivated fingerlings of "pirarucu" Arapaima gigas in Peru. Body and gill smears were air-dried at room temperature, impregnated with silver nitrate and/or stained with ...
Luis Henostroza Miranda +3 more
doaj +1 more source
Exploring ecohydrology through the lens of local fishers in the Bolivian Amazon
Ecosphere, Volume 17, Issue 4, April 2026.Abstract The natural flow regimes of Andean‐Amazon tributaries play a vital role in sustaining their rich biodiversity and productive local fisheries, but ongoing and proposed alteration of river flow regimes by large dams threatens to negatively impact river ecosystems. Despite its importance, our understanding of how hydrologic variability influences
Lina G. Terrazas‐Villarroel +4 more
wiley +1 more source
Tensile Properties of 3D‐Printed Porous Bouligand Structured Polymer Plates
Macromolecular Materials and Engineering, Volume 311, Issue 4, April 2026.The tensile performance of porous Bouligand‐structured polymers is governed by pitch angle and fiber spacing. Experimental and FEA results reveal optimal strength and stiffness at 30∘$^\circ$, with mechanical efficiency scaling with density. These tunable bioinspired architectures bridge cellular solids and composites, offering lightweight, damage ...
Praveenkumar Subhash Patil +2 more
wiley +1 more source
Digestive Physiology, Nutrition and Feeding of Arapaima gigas: A Review
FishesThe Arapaima gigas, a native fish species in the Amazon basin, presents particular biological and zootechnical characteristics, along with substantial economic value, that make it a promising candidate for its production within intensive aquaculture systems.
Alfredo Ruben Palomino Ramos +1 more
openaire +2 more sources
Neotropical IchthyologyThe stomach content of samples of juvenile Arapaima gigas was analized to obtain information about feeding in natural environments. This species occurs in the Amazonian basin, predominantly in floodplain environment. This is the case of the valley of the
Valdézio de Oliveira +2 more
doaj +1 more source
Unprotected Waters: When Protection Fails In Freshwater
Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 3, March 2026.ABSTRACT Invasive species are a major driver of biodiversity loss in protected areas (PAs), yet their impacts in aquatic environments are less well documented. This study investigated the occurrence and distribution of nonnative freshwater fish in federal PAs in Brazil.
Aymar Orlandi Neto +2 more
wiley +1 more source
Arapaima cf. gigas f. cf. Distribution Amazonia. Notes Barriga (1994), WCS (2007), Jácome-Negrete (2013).
Escobar-Camacho, Daniel +4 more
openaire +1 more source
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 +6 more
wiley +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) +8 more
core +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) +8 more
core +1 more source