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Shark bycatch of the acoupa weakfish, Cynoscion acoupa (Lacèpede, 1801), fisheries of the Amazon Shelf
Published 2023-04-01“…The acoupa weakfish fisheries operate on the Amazon Shelf, an important fishing ground, and we analyzed the shark landings in relation to the Amazon River Discharge anomaly (ARD) and the climatic variability in the Atlantic Ocean. …”
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502
Modelling the genesis of equatorial podzols: age and implications for carbon fluxes
Published 2017-05-01“…Amazonian podzols store huge amounts of carbon and play a key role in transferring organic matter to the Amazon River. In order to better understand their C dynamics, we modelled the formation of representative Amazonian podzol profiles by constraining both total carbon and radiocarbon. …”
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503
Assessment of Precipitation and Evapotranspiration in an Urban Area Using Remote Sensing Products (CHIRP, CMORPH, and SSEBop): The Case of the Metropolitan Region of Belem, Amazon
Published 2023-10-01“…The region chosen for this study was the Metropolitan Area of Belem (MAB), close to the estuary of the Amazon River and the mouth of the Tocantins River. Belem is the rainiest state capital in Brazil, which causes a myriad of challenges for the local population. …”
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504
Evidence for family-level variation of phenotypic traits in response to temperature of Brazilian Nyssorhynchus darlingi
Published 2020-02-01“…Abstract Background Nyssorhynchus darlingi (also known as Anopheles darlingi) is the primary malaria vector in the Amazon River Basin. In Brazil, analysis of single nucleotide polymorphisms (SNPs) previously detected three major population clusters, and a common garden experiment in a laboratory setting revealed significant population variation in life history traits. …”
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505
A fauna de parasitas do tambaqui, Colossoma macropomum (Cuvier, 1818) (Characiformes: Characidae) do médio rio Solimões, Estado do Amazonas (AM) e do baixo rio Amazonas, Estado do...
Published 2003-12-01“…<br>Specimens of Colossoma macropomum, an Amazonian characoid, captured at two different sites, one near the towns of Tefé and Coari in the middle Solimões River, state of Amazonas, and the other near the town of Santarém, lower Amazon River, state of Pará, were examined for parasites. …”
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506
Evaluation of the influence of ENSO on tropical vegetation in long time series using a new indicator
Published 2021-10-01“…The analysis indicated that tropical vegetation exhibited a fluctuating increase state with an overall increasing range of 4.46%, and the greening trends were the most significant and dramatical in the Indian Peninsula (0.0031/y), the coast of the Gulf of Guinea (0.0026/y), and the Amazon River estuary (0.0025/y). ENSO can lead to significant enhancement or degradation of vegetation in at least 10% of tropical regions, especially in East Africa (|VERI| =0.16), Southern Africa (|VERI|=0.18) and Indonesia (|VERI|=0.14). …”
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507
Diatoms from the Colombian and Peruvian Amazon: the Genera Encyonema, Encyonopsis and Gomphonema (Cymbellales: Bacillariophyceae)
Published 2010-03-01“…Plankton and periphyton samples were collected in lotic and lentic waterbodies from the Amazonian-Andean region, the Amazon River, Japurá River and Porvenir River basins during 1993, 1994, 2001 and 2003. …”
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508
Genomic selection signatures in farmed Colossoma macropomum from tropical and subtropical regions in South America
Published 2022-04-01“…Initially, 199 samples of tambaqui farmed populations from different locations (located in Brazil, Colombia, and Peru), a wild population (Amazon River, Brazil), and the base population of a breeding program (Aquaculture Center, CAUNESP, Jaboticabal, SP, Brazil) were genotyped. …”
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509
A Holocene pollen record of savanna establishment in coastal Amapá
Published 2008-06-01“…A 550-year sedimentary hiatus suggests that the lake depended heavily on floodwaters from the Amazon River, and that it became suddenly isolated from it. …”
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Effects of Small-Scale Gold Mining Tailings on the Underwater Light Field in the Tapajós River Basin, Brazilian Amazon
Published 2017-08-01“…Ongoing research indicates that the effects of mining tailings on the aquatic environment, described here, are occurring in several rivers within the Amazon River Basin.…”
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512
Ocorrência e distribuição geográfica do bacurizeiro Occurrence and geographical distribution of bacuri
Published 2007-01-01“…In all Amazon, one area of large concentration of the species is the estuary of Amazon's river. In the State of Pará, was dispersed in direction to the northeast of Brazil, reaching the savannahs and plains of the States of Maranhão and Piauí. …”
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513
Bioaccumulation of methylmercury in fish tissue from the Roosevelt River, Southwestern Amazon basin
Published 2016-06-01“…Mercury is a major pollutant in the Amazon River system, and its levels in fish and human hair are usually above the limit recommended by health agencies. …”
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514
Internal tides off the Amazon shelf – Part 1: The importance of the structuring of ocean temperature during two contrasted seasons
Published 2024-01-01“…<p>The impact of internal and barotropic tides on the vertical and horizontal temperature structure off the Amazon River was investigated during two highly contrasted seasons (AMJ: April–May–June; ASO: August–September–October) over a 3-year period from 2013 to 2015. …”
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515
Wild dogs at stake: deforestation threatens the only Amazon endemic canid, the short-eared dog (Atelocynus microtis)
Published 2020-04-01“…Species distribution models suggested that the short-eared dog potentially occurs over an extensive and continuous area, through most of the Amazon region south of the Amazon River. However, approximately 30% of the short-eared dog's current distribution is expected to be lost or suffer sharp declines in habitat suitability by 2027 (within three generations) due to forest loss. …”
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516
Vegetation and hydrology changes in Eastern Amazonia inferred from a pollen record
Published 2008-03-01“…Lake Tapera probably depended on riverine flood waters, and the sedimentary gap was caused by reduced Amazon River discharge, due to an extremely dry period in the Andes (8,000-5,000 years BP), when precipitation levels markedly decreased. …”
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517
Influência do rio Negro sobre o status nutricional de juvenis de curimatã Prochilodus nigricans (Characiformes; Prochilodontidae) no médio rio Solimões-Amazonas, Brasil Influence o...
Published 2013-09-01“…To check the influence of the Negro river on the nutritional status of curimatã juveniles Prochilodus nigricans we estimated the conductivity in the sampling points and condition factor (K, from weight/length relationship) of the juveniles in three flooding areas of the middle Solimões-Amazon river: (1) with Negro river influence, near Manaus (2) without Negro river influence, near Manaus and (3) without Negro river influence, in a stretch of the Solimões-Amazonas 500 km upstream from Manaus. …”
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518
Resistance to single dose albendazole and reinfection with intestinal helminths among children ages 2 to 11 years from the Peruvian Amazon region: a study protocol
Published 2022-06-01“…Methods We propose to assess the clinical efficacy of Peruvian national guidelines for deworming programs in a prospective observational study conducted in the Amazon River basin area near Iquitos, Peru. Major outcomes to be evaluated include (1) albendazole resistance of intestinal helminths (trichuriasis, ascariasis, hookworm), and (2) frequency of reinfection with intestinal helminths 4 months after treatment with albendazole. …”
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519
Phylogenetic relationships and biogeography of the ancient genus Onychorhynchus (Aves: Onychorhynchidae) suggest cryptic Amazonian diversity
Published 2023-11-01“…Some of those events include the formation of the Amazon River and its tributaries, Andean uplift, and climatically induced vegetational shifts. …”
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520