Nimbus Fish Hatchery
E703781
Nimbus Fish Hatchery is a fish-rearing and conservation facility on the American River in California that supports salmon and steelhead populations impacted by Nimbus Dam.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Nimbus Fish Hatchery canonical | 4 |
How this entity was disambiguated
This entity first appeared as the object of triple T7993755 — 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: Nimbus Fish Hatchery Context triple: [Nimbus Dam, hasFacility, Nimbus Fish Hatchery]
-
A.
Issaquah Salmon Hatchery
The Issaquah Salmon Hatchery is a popular educational and conservation facility in Issaquah, Washington, where visitors can observe and learn about the life cycle of Pacific salmon.
-
B.
Hot Creek Fish Hatchery
Hot Creek Fish Hatchery is a California trout-rearing facility in Mono County that supports recreational fisheries by raising and stocking various trout species in nearby waters.
-
C.
Mokelumne River Fish Hatchery
Mokelumne River Fish Hatchery is a fish production and conservation facility in California that raises and releases salmon and steelhead to support regional fisheries and restore native fish populations.
-
D.
Feather River Fish Hatchery
Feather River Fish Hatchery is a salmon and steelhead production and research facility in Oroville, California, that supports fisheries and mitigates the impacts of the Oroville Dam on native fish populations.
-
E.
Mount Falcon Fishery
Mount Falcon Fishery is a renowned salmon angling beat on Ireland’s River Moy, noted for its productive waters and scenic surroundings.
- 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: Nimbus Fish Hatchery Target entity description: Nimbus Fish Hatchery is a fish-rearing and conservation facility on the American River in California that supports salmon and steelhead populations impacted by Nimbus Dam.
-
A.
Issaquah Salmon Hatchery
The Issaquah Salmon Hatchery is a popular educational and conservation facility in Issaquah, Washington, where visitors can observe and learn about the life cycle of Pacific salmon.
-
B.
Hot Creek Fish Hatchery
Hot Creek Fish Hatchery is a California trout-rearing facility in Mono County that supports recreational fisheries by raising and stocking various trout species in nearby waters.
-
C.
Mokelumne River Fish Hatchery
Mokelumne River Fish Hatchery is a fish production and conservation facility in California that raises and releases salmon and steelhead to support regional fisheries and restore native fish populations.
-
D.
Feather River Fish Hatchery
Feather River Fish Hatchery is a salmon and steelhead production and research facility in Oroville, California, that supports fisheries and mitigates the impacts of the Oroville Dam on native fish populations.
-
E.
Mount Falcon Fishery
Mount Falcon Fishery is a renowned salmon angling beat on Ireland’s River Moy, noted for its productive waters and scenic surroundings.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
conservation facility
ⓘ
fish hatchery ⓘ |
| conservationGoal |
maintain salmon runs in the American River
ⓘ
maintain steelhead runs in the American River ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| createdToMitigate | Nimbus Dam ⓘ |
| ecosystem | American River watershed ⓘ |
| federalAgencyPartner |
U.S. Bureau of Reclamation
ⓘ
linked to:
Bureau of Reclamation
|
| focusesOn |
Pacific salmon
ⓘ
anadromous fish ⓘ steelhead ⓘ |
| hasEducationalRole |
public education about river ecosystems
ⓘ
public education about salmon life cycle ⓘ |
| hasFeature |
fish ladder
ⓘ
fish viewing area ⓘ rearing ponds ⓘ spawning room ⓘ visitor center ⓘ |
| locatedIn |
California
ⓘ
linked to:
California, United States
|
| locatedInCounty |
Sacramento County, California
ⓘ
linked to:
Sacramento County
|
| locatedNear |
Folsom, California
ⓘ
linked to:
Folsom
|
| locatedOnRiver |
American River
ⓘ
linked to:
American River (California)
|
| managesLifeStage |
salmon eggs
ⓘ
salmon fry ⓘ salmon smolts ⓘ steelhead eggs ⓘ steelhead juveniles ⓘ |
| nearStructure |
Hazel Avenue Bridge
ⓘ
Nimbus Dam ⓘ |
| offersActivity |
educational tours
ⓘ
salmon viewing ⓘ steelhead viewing ⓘ |
| openToPublic | true ⓘ |
| operatedBy |
California Department of Fish and Wildlife
ⓘ
U.S. Bureau of Reclamation ⓘ
linked to:
Bureau of Reclamation
|
| purpose |
fish conservation
ⓘ
fish rearing ⓘ mitigate impacts of Nimbus Dam on salmon populations ⓘ mitigate impacts of Nimbus Dam on steelhead populations ⓘ support anadromous fish populations in the American River ⓘ |
| rearsSpecies |
Chinook salmon
ⓘ
steelhead trout ⓘ |
| regionServed | Lower American River ⓘ |
| relatedToProject | Central Valley Project ⓘ |
| stateAgencyPartner | California Department of Fish and Wildlife ⓘ |
| supportsRecreation |
environmental education programs
ⓘ
wildlife viewing ⓘ |
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: Nimbus Fish Hatchery Description of subject: Nimbus Fish Hatchery is a fish-rearing and conservation facility on the American River in California that supports salmon and steelhead populations impacted by Nimbus Dam.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.