Saugeye
| Saugeye | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Perciformes |
| Family: | Percidae |
| Subfamily: | Luciopercinae |
| Tribe: | Luciopercini |
| Genus: | Sander |
| Species: | S. canadensis × S. vitreus |
Hybrid species of fish
The saugeye (Sander canadensis × vitreus) is a hybrid freshwater fish of walleye and sauger of the family Percidae.
Description
The color of saugeye varies between olive green to gold but most individuals exhibit distinct dark saddles extending across the body.[1] Additionally, saugeye exhibit distinct streaks across the dorsal fin that frequently have one to two rows of spots along the base. Sauger will have multiple rows of spots while walleye only exhibit indistinct crescents across the dorsal fin.[1] Saugeye are difficult to identify based on external characteristics alone due to their similarity with both parent species. For example, 27% of presumed walleye sampled in the Ohio River were later determined to be saugeye through genetic techniques.[2]
Management
Due to their relatively fast growth rate, environmental adaptability, and sterility, saugeye are raised in hatcheries and stocked in the U.S., including (but not limited to) the states of Ohio, Tennessee, Colorado, and Nebraska.[3] In some waterbodies, saugeye are known to backcross with sauger and walleye.[4][5]
References
- ^ a b "Saugeye Management". Virginia Department of Wildlife Conservation. Retrieved 24 June 2024.
- ^ White; et al. (2003). "A Genetic Assessment of Ohio River Walleyes". Transactions of the American Fisheries Society. 134: 661–665.
- ^ "Sander canadensis × vitreus". U.S. Geological Survey, Nonindigenous Aquatic Species Database. Retrieved 24 June 2024.
- ^ Fiss; et al. (2011). "Reproduction among Saugeyes (Fx Hybrids) and Walleyes in Normandy Reservoir, Tennessee". North American Journal of Fisheries Management. 17: 215–219.
- ^ Graham; et al. (2020). "Spontaneous hybridization and introgression between walleye (Sander vitreus) and sauger (Sander canadensis) in two large reservoirs: Insights from genotyping by sequencing". Evolutionary Applications. 14: 965–982.
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