scholarly journals Home range and movements of Amazon river dolphins Inia geoffrensis in the Amazon and Orinoco river basins

2021 ◽  
Author(s):  
F Mosquera-Guerra ◽  
F Trujillo ◽  
MO Oliveira-da_Costa ◽  
M Marmontel ◽  
PA Van Damme ◽  
...  
Keyword(s):  
Home Range ◽  
River Basins ◽  
Amazon River ◽  
Orinoco River ◽  
Inia Geoffrensis

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

2005 ◽  
Vol 3 (1) ◽  
pp. 89-106 ◽  
Author(s):  
Carl J. Ferraris Jr. ◽  
Richard P. Vari ◽  
Sandra J. Raredon
Keyword(s):  
River Basin ◽  
River Basins ◽  
Junior Synonym ◽  
Amazon River ◽  
Amazon River Basin ◽  
Orinoco River ◽  
Negro River ◽  
Madeira River ◽  
Fourth Species ◽  
Madeira River Basin

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 upper Madeira River basin. The widespread Amazonian species that had been misidentified as A. thoracatus is, instead, A. coracoideus; a species that also occurs in the upper Essequibo River. Auchenipterichthys longimanus, the most widely distributed species of the genus, is found through much of the Amazon and Orinoco River basins. The fourth species of the genus, A. punctatus (and its junior synonym A. dantei), is found in the upper portions of the Orinoco and Negro River basins in Venezuela and the central portions of the Amazon River basin in Brazil. All four species of Auchenipterichthys are redescribed and illustrated, and a key to the species is provided.

Etho-ecological study of the Amazon River dolphin, Inia geoffrensis (Cetacea: Iniidae), and the dolphins of the genus Sotalia (Cetacea: Delphinidae) in Guamá River, Amazonia

2012 ◽  
Vol 5 ◽  
Author(s):  
Gabriel M.A. Dos Santos ◽  
Adriano C. Quaresma ◽  
Rafael R. Barata ◽  
Bruna M.L. Martins ◽  
Salvatore Siciliano ◽  
...  
Keyword(s):  
Ecological Study ◽  
Amazon River ◽  
River Dolphin ◽  
Inia Geoffrensis

scholarly journals Assessment of Wetland Ecosystem Health in the Yangtze and Amazon River Basins

2017 ◽  
Vol 6 (3) ◽  
pp. 81 ◽  
Author(s):  
Rui Sun ◽  
Pingping Yao ◽  
Wen Wang ◽  
Bing Yue ◽  
Gang Liu
Keyword(s):  
Ecosystem Health ◽  
River Basins ◽  
Amazon River ◽  
Wetland Ecosystem

scholarly journals New records of fishes (Actinopterygii: Ostariophysi) from the Upper Tapajós River Basin

Check List ◽  
2012 ◽  
Vol 8 (3) ◽  
pp. 592 ◽  
Author(s):  
Fernando C. P. Dagosta ◽  
Murilo N. L. Pastana ◽  
André L. H. Esguícero
Keyword(s):  
River Basin ◽  
New Records ◽  
River Basins ◽  
Amazon River ◽  
First Report ◽  
Xingu River ◽  
Coastal Rivers

The first report of Sartor (Anostomidae) and Tatia intermedia (Auchenipteridae) for the Upper Tapajós River Basin are presented here. Sartor is very rare on collections, and is reported only from the Trombetas, Tocantins and Upper Xingu river basins. Tatia intermedia is registered in the upper reaches of the Araguaia, Tocantins, Xingu, and Capim rivers, tributaries of the lower Amazon River in Brazil, northwards to the Suriname coastal rivers and the Essequibo River in Guyana.

scholarly journals Effectiveness of unmanned aerial vehicles to detect Amazon dolphins

Oryx ◽  
2019 ◽  
Vol 54 (5) ◽  
pp. 696-698 ◽  
Author(s):  
Marcelo Oliveira-da-Costa ◽  
Miriam Marmontel ◽  
Daiane S. X. da-Rosa ◽  
André Coelho ◽  
Serge Wich ◽  
...  
Keyword(s):  
Unmanned Aerial Vehicles ◽  
Amazon Basin ◽  
Accurate Estimate ◽  
Amazon River ◽  
Tropical Rivers ◽  
River Dolphin ◽  
Aerial Vehicles ◽  
Aerial Surveys ◽  
Inia Geoffrensis ◽  
Management And Conservation

AbstractQuantifying the abundance of species is essential for their management and conservation. Much effort has been invested in surveys of freshwater dolphins in the Amazon basin but river dimensions and complex logistics limit replication of such studies across the region. We evaluated the effectiveness of using unmanned aerial vehicles (UAVs) for surveying two Amazon dolphin species, the tucuxi Sotalia fluviatilis and pink river dolphin Inia geoffrensis, in tropical rivers. In 2016 we conducted drone and visual surveys over 80 km of the Juruá River in Brazil. The aerial surveys provided higher accuracy than human observers in counting individuals detected in groups. Compared to estimates derived from visual surveys, the use of UAVs could provide a more feasible, economical and accurate estimate of Amazon river dolphin populations. The method could potentially be replicated in other important areas for the conservation of these species, to generate an improved index of river dolphin populations in the Amazon.

Carbon river fluxes and weathering CO2 consumption in the Congo and Amazon river basins

1994 ◽  
Vol 9 (1) ◽  
pp. 1-13 ◽  
Author(s):  
J.L. Probst ◽  
J. Mortatti ◽  
Y. Tardy
Keyword(s):  
River Basins ◽  
Amazon River ◽  
Co2 Consumption

scholarly journals The Casiquiare river acts as a corridor between the Amazonas and Orinoco river basins: biogeographic analysis of the genusCichla

2010 ◽  
Vol 19 (5) ◽  
pp. 1014-1030 ◽  
Author(s):  
S. C. WILLIS ◽  
M. NUNES ◽  
C. G. MONTAÑA ◽  
I. P. FARIAS ◽  
G. ORTÍ ◽  
...  
Keyword(s):  
River Basins ◽  
Orinoco River ◽  
Biogeographic Analysis
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