Paraná–Paraguay Basin

E810749

drainage basin river basin

The Paraná–Paraguay Basin is a major South American river basin encompassing extensive freshwater ecosystems across parts of Brazil, Paraguay, Argentina, and neighboring countries.

Try in SPARQL Jump to: Surface forms Disambiguation Statements Elicitation Referenced by

All labels observed (17)

Label	Occurrences
Paraná River basin	50
Paraguay River basin	11
Paraná–Paraguay Basin canonical	7
Paraguay–Paraná Basin	2
Paraná River region	2
Upper Paraguay River basin	2
Gran Chaco-Paraná basin	1
Iguaçu River basin	1
Lower Paraná River basin	1
Paraguay River Basin	1
Paraguay River region	1
Paraguay–Paraná–Río de la Plata watershed	1
Paraná Basin	1
Paraná River area	1
Upper Paraguay River Basin	1
Upper Paraguay basin	1
upper Paraguay River basin	1

How this entity was disambiguated

This entity first appeared as the object of triple T9541782 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: Paraná–Paraguay Basin
Context triple: [Doradidae, nativeTo, Paraná–Paraguay Basin]

A. Brazil Basin
The Brazil Basin is a deep oceanic basin in the western South Atlantic characterized by extensive abyssal plains and significant deep-water circulation.
B. Negro River basin
The Negro River basin is a major sub-basin of the Amazon system, encompassing the vast drainage area of the Rio Negro and its tributaries in northern South America.
C. Upper Paraná River basin
The Upper Paraná River basin is the extensive drainage area in south-central Brazil that collects waters from major tributaries like the Paranaíba River before forming the main Paraná River.
D. Paraná Delta
The Paraná Delta is a vast, biodiverse wetland and network of islands in northeastern Argentina, formed where the Paraná River empties into the Río de la Plata.
E. Orinoco Basin
The Orinoco Basin is a vast tropical river basin in northern South America, encompassing large parts of Venezuela and Colombia and supporting extensive rainforest, wetlands, and rich biodiversity.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: Paraná–Paraguay Basin
Target entity description: The Paraná–Paraguay Basin is a major South American river basin encompassing extensive freshwater ecosystems across parts of Brazil, Paraguay, Argentina, and neighboring countries.

A. Brazil Basin
The Brazil Basin is a deep oceanic basin in the western South Atlantic characterized by extensive abyssal plains and significant deep-water circulation.
B. Negro River basin
The Negro River basin is a major sub-basin of the Amazon system, encompassing the vast drainage area of the Rio Negro and its tributaries in northern South America.
C. Upper Paraná River basin
The Upper Paraná River basin is the extensive drainage area in south-central Brazil that collects waters from major tributaries like the Paranaíba River before forming the main Paraná River.
D. Paraná Delta
The Paraná Delta is a vast, biodiverse wetland and network of islands in northeastern Argentina, formed where the Paraná River empties into the Río de la Plata.
E. Orinoco Basin
The Orinoco Basin is a vast tropical river basin in northern South America, encompassing large parts of Venezuela and Colombia and supporting extensive rainforest, wetlands, and rich biodiversity.
F. None of above. chosen

Statements (49)

Predicate	Object
instanceOf	drainage basin ⓘ river basin ⓘ
biodiversityImportance	high aquatic biodiversity ⓘ important habitat for migratory waterbirds ⓘ supports threatened wetland species ⓘ
containsBiome	seasonally flooded grassland ⓘ subtropical forest ⓘ tropical savanna ⓘ
continent	South America ⓘ
country	Argentina ⓘ Bolivia ⓘ Brazil ⓘ Paraguay ⓘ Uruguay ⓘ
drainageDirection	southeastward ⓘ southward ⓘ
drainsInto	Río de la Plata estuary ⓘ linked to: Río de la Plata
ecosystemType	floodplain ecosystem ⓘ freshwater ecosystem ⓘ wetland ecosystem ⓘ
environmentalIssue	biodiversity loss in floodplains ⓘ deforestation in headwaters ⓘ hydrological alteration by dams ⓘ water pollution from agriculture ⓘ wetland drainage and conversion ⓘ
hasPart	Chaco plain ⓘ linked to: Chaco Iberá Wetlands ⓘ Pantanal wetland ⓘ linked to: Pantanal Paraguay River floodplain ⓘ linked to: Pantanal Paraná Delta ⓘ Upper Paraná River floodplain ⓘ linked to: Upper Paraná River basin
hydrologicalImportance	major component of the Río de la Plata Basin ⓘ one of the largest river basins in South America ⓘ
majorRiver	Paraguay River ⓘ Paraná River ⓘ
oceanBasin	Atlantic Ocean ⓘ
supportsActivity	cattle ranching on floodplains ⓘ hydropower generation ⓘ inland fisheries ⓘ irrigated agriculture ⓘ river navigation ⓘ
tributaryRiver	Apa River ⓘ Bermejo River ⓘ Grande River (Brazil) ⓘ linked to: Rio Grande (Brazil) Iguazu River ⓘ Paranaíba River ⓘ Pilcomayo River ⓘ São Lourenço River (Brazil) ⓘ Tiete River ⓘ

How these facts were elicited