American eel
E640969
The American eel is a migratory, catadromous fish native to eastern North America, known for its elongated, snake-like body and complex life cycle that includes spawning in the Sargasso Sea and inhabiting freshwater and coastal habitats.
All labels observed (1)
| Label | Occurrences |
|---|---|
| American eel canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T7083626 — 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: American eel Context triple: [Annapolis River, hasWildlife, American eel]
-
A.
European eel
The European eel is a migratory fish species native to European and North African waters, known for its complex life cycle that includes spawning in the Sargasso Sea and long-distance journeys between marine and freshwater habitats.
-
B.
Pacific lamprey
The Pacific lamprey is an ancient, eel-like jawless fish native to the Pacific coast of North America, where it plays a key ecological and cultural role, particularly for Indigenous communities.
-
C.
Alewife
Alewife is a major subway station and transit hub in North Cambridge, Massachusetts, serving as the northern endpoint of Boston’s MBTA Red Line and a large park-and-ride facility.
-
D.
Amur sturgeon
The Amur sturgeon is a large, long-lived freshwater fish native to the Amur River basin in East Asia, valued for its caviar and threatened by overfishing and habitat degradation.
-
E.
Sturgeon
Sturgeon is a surname most prominently associated with Nicola Sturgeon, the former First Minister of Scotland and leader of the Scottish National Party.
- 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: American eel Target entity description: The American eel is a migratory, catadromous fish native to eastern North America, known for its elongated, snake-like body and complex life cycle that includes spawning in the Sargasso Sea and inhabiting freshwater and coastal habitats.
-
A.
European eel
The European eel is a migratory fish species native to European and North African waters, known for its complex life cycle that includes spawning in the Sargasso Sea and long-distance journeys between marine and freshwater habitats.
-
B.
Pacific lamprey
The Pacific lamprey is an ancient, eel-like jawless fish native to the Pacific coast of North America, where it plays a key ecological and cultural role, particularly for Indigenous communities.
-
C.
Alewife
Alewife is a major subway station and transit hub in North Cambridge, Massachusetts, serving as the northern endpoint of Boston’s MBTA Red Line and a large park-and-ride facility.
-
D.
Amur sturgeon
The Amur sturgeon is a large, long-lived freshwater fish native to the Amur River basin in East Asia, valued for its caviar and threatened by overfishing and habitat degradation.
-
E.
Sturgeon
Sturgeon is a surname most prominently associated with Nicola Sturgeon, the former First Minister of Scotland and leader of the Scottish National Party.
- F. None of above. chosen
Statements (53)
| Predicate | Object |
|---|---|
| instanceOf |
catadromous fish
ⓘ
species of ray-finned fish ⓘ |
| activityPattern | nocturnal ⓘ |
| binomialName | Anguilla rostrata NERFINISHED ⓘ |
| class | Actinopterygii ⓘ |
| conservationStatus | Endangered (IUCN) ⓘ |
| describedBy | Lesueur NERFINISHED ⓘ |
| diet |
invertebrates
ⓘ
small fishes ⓘ |
| family | Anguillidae NERFINISHED ⓘ |
| genus | Anguilla NERFINISHED ⓘ |
| hasBodyShape |
elongated
ⓘ
snake-like ⓘ |
| hasColor |
olive-brown dorsally
ⓘ
yellowish or pale ventrally ⓘ |
| hasCommonName |
American eel
ⓘ
Atlantic eel ⓘ |
| hasHabitatPreference |
muddy or sandy bottoms
ⓘ
vegetated areas ⓘ |
| hasLifeCycleType | catadromous ⓘ |
| hasLifeStage |
elver
ⓘ
glass eel ⓘ leptocephalus larva ⓘ silver eel ⓘ yellow eel ⓘ |
| hasMigrationType | long-distance oceanic migration ⓘ |
| kingdom | Animalia ⓘ |
| maximumLength | about 1.2 metres ⓘ |
| maximumWeight | about 7 kilograms ⓘ |
| migratesBetween |
freshwater habitats
ⓘ
marine habitats ⓘ |
| nativeTo |
Atlantic coast of North America
ⓘ
Caribbean Sea NERFINISHED ⓘ Gulf of Mexico NERFINISHED ⓘ eastern North America ⓘ |
| occursIn |
coastal marine waters
ⓘ
estuaries ⓘ freshwater rivers ⓘ lakes ⓘ |
| order | Anguilliformes NERFINISHED ⓘ |
| phylum | Chordata ⓘ |
| reproductionType | spawning ⓘ |
| spawnsIn | Sargasso Sea NERFINISHED ⓘ |
| taxonRank | species ⓘ |
| threatenedBy |
climate change
ⓘ
dams ⓘ habitat loss ⓘ overfishing ⓘ pollution ⓘ |
| usedFor |
aquaculture
ⓘ
commercial fisheries ⓘ food ⓘ |
| yearDescribed | 1817 ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: American eel Description of subject: The American eel is a migratory, catadromous fish native to eastern North America, known for its elongated, snake-like body and complex life cycle that includes spawning in the Sargasso Sea and inhabiting freshwater and coastal habitats.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.