Range and Identity
The inventory retains Stenodus leucichthys, a name historically used broadly for sheefish. Modern split treatments use Stenodus nelma for the Arctic fish, including Yukon and Mackenzie populations. Caspian measurements from the older broad treatment are not automatically assigned to North American Sheefish.
Habitat and Behavior
The nelma account describes cold large rivers, lakes, deltas, estuaries and coastal waters. Some populations use marine or brackish feeding areas, while others remain landlocked. Lake populations can move into tributaries to spawn, so an obligatory marine phase is not universal.
Food and Life History
The split-species reference gives an upper length of 150 centimeters standard length. Young eat small crustaceans, insect larvae and fry before becoming strongly fish-eating. A broad historical forty-kilogram figure is not treated as an independently verified North American maximum weight.
Field Note
Keep the population and measurement convention visible. A North American Sheefish record should not silently inherit a Caspian fish’s mass or a differently defined body length.
All Lakes With Sheefish
Browse lakes and reservoirs with documented Sheefish records, listed alphabetically. Records do not establish current abundance or public access. Check the evidence and managing authority for the water you choose.
Showing 1–15 of 15 lakes · Page 1 of 1
- Arhymot Lake Bethel, AK
- Bullwinkle Lake Southeast Fairbanks (CA), AK
- Four Mile Lake Southeast Fairbanks (CA), AK
- Grayling Lake Fairbanks North Star, AK
- Inland Lake Northwest Arctic, AK
- Kayigyalik Lake Bethel, AK
- Kgun Lake Kusilvak (CA), AK
- Kotlik Lagoon Northwest Arctic, AK
- Krusenstern Lagoon Northwest Arctic, AK
- Kukaklik Lake Bethel, AK
- Manchu Lake Fairbanks North Star, AK
- Minto Lakes Yukon-Koyukuk, AK
- Nanvaranak Lake Kusilvak (CA), AK
- Nunavakanukakslak Lake Bethel, AK
- Tuklomarak Lake Northwest Arctic, AK