AN Endangered?Extinct Species
- Short head;
- Small eye;
- Small snout with distinctly dark pigmentation;
- Small terminal mouth with lower jaw included in the upper jaw;
- Gill raker count of 32 to 42;
- Silvery in appearance;
- Maximum weight 420 g; and
- Total average length of 265 mm.
Very little is known about the habitat preferences and life history of the Shortnose Cisco. It was a deepwater fish, considered one of the ‘chub’ species, which lived in clear, cold-water environments all year long. It has been collected in water depths ranging from 22 to 110 m. The Shortnose Cisco was the only known spring-spawning cisco in the lakes where it occurred and likely migrated to deep water for spawning. There is some evidence that fall spawning may have also taken place. Sexual maturity was reached at two to three years. The maximum age was eleven years for females and nine years for males. It was prey for Burbot and deepwater forms of Lake Trout.