Results 31 to 40 of about 2,070,775 (260)

Carbon Dioxide Emissions along the Lower Amazon River

open access: yesFrontiers in Marine Science, 2017
A large fraction of the organic carbon derived from land that is transported through inland waters is decomposed along river systems and emitted to the atmosphere as carbon dioxide (CO2).
Henrique O. Sawakuchi   +13 more
doaj   +1 more source

Floodplain channel morphology and networks of the middle Amazon River [PDF]

open access: yes, 2012
Floodplain channels are important components of river-floodplain systems and are known to play a key role in hydrodynamic exchange and sediment transport.
Mark A. Trigg   +9 more
core   +1 more source

Mercury in the Tapajós River basin, Brazilian Amazon: A review

open access: yesEnvironment International, 2010
This paper presents a review about mercury contamination and human exposure in the Tapajós River basin (Brazil), one of the major tributaries of the Amazon impacted by traditional gold mining from the mid 1980s. The most recent review in this region was published more than ten years ago and since then many articles about environment and especially ...
Berzas Nevado, Juan José   +6 more
openaire   +3 more sources

Mapping large‐scale river flow hydraulics in the Amazon Basin [PDF]

open access: yesWater Resources Research, 2013
Key Points first attempt to map river flow dynamics in the Amazon basin new empirical equation for time of peak of flood waves designed for large rivers the map has a percentage of detection of 83.4%
Getirana, Augusto C. V.   +1 more
openaire   +1 more source

Major aspects of the mercury cycle in the Negro River Basin, Amazon [PDF]

open access: yesJournal of the Brazilian Chemical Society, 2009
Despite the low level of industrial activity and human density, Hg concentration in the Negro River basin is relatively high. Soil enriched with naturally high Hg concentrations and atmospheric deposition are the main sources of the metal in this watershed.
da Silva, Gilmar Silverio   +5 more
openaire   +5 more sources

Delaware River: State of the Basin Report, 2008

open access: yes, 2008
The Delaware River Basin Commission State of the Basin Report 2008 is designed to serve as a benchmark of current conditions and a point of reference for gaging progress toward management goals.

core   +1 more source

Drought variability and land degradation in the Amazon River basin

open access: yesFrontiers in Earth Science, 2022
The Amazon River Basin (ARB) plays an essential role in global climate regulation. Recent studies have revealed signs of increasing drought conditions in different parts of the basin. Although human activities have degraded large areas, little work has been done to assess whether prolonged drought may exacerbate land degradation ...
Franklin Paredes-Trejo   +6 more
openaire   +2 more sources

Hydrologic Conditions in the Delaware River Basin, Annual Report 2003

open access: yes, 2004
This is an Annual Report of the hydrological conditions in the Delaware River Basin for 2003. It includes an update on the lingering effects of the 2001-2002 drought, as well as summaries of preciptation, streamflow, reservoir storage, ground water, and ...

core   +1 more source

The distribution of Cteniloricaria (Siluriformes: Loricariidae): known and new records in Brazil suggest headwater captures as drivers of disjoint distribution

open access: yesNeotropical Ichthyology, 2021
Cteniloricaria is a genus of Neotropical armored catfishes belonging to the Loricariinae, currently including two valid species: C. platystoma and C. napova.
Alejandro Londoño-Burbano   +2 more
doaj   +1 more source

Catfishes of the genus Auchenipterichthys (Osteichthyes: Siluriformes: Auchenipteridae): a revisionary study

open access: yesNeotropical Ichthyology
The Neotropical auchenipterid catfish genus Auchenipterichthys is reviewed and found to include four species. Auchenipterichthys thoracatus, formerly considered to be widely distributed throughout the Amazon River basin, is found to be restricted to the ...
Carl J. Ferraris Jr.   +2 more
doaj   +1 more source

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