Cutbow
Cutbow | |
---|---|
Scientific classification | |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Actinopterygii |
Order: | Salmoniformes |
Family: | Salmonidae |
Subfamily: | Salmoninae |
Genus: | Oncorhynchus |
Species: | O. mykiss × O. clarkii |
A cutbow (Oncorhynchus clarkii × mykiss) is an interspecific fertile hybrid between a rainbow trout (Oncorhynchus mykiss) and a cutthroat trout (O. clarkii). Cutbow hybrids may occur naturally where the native ranges of both species overlap--coastal rainbow trout (O. mykiss irideus) and coastal cutthroat trout (O. clarkii clarkii) and Columbia River redband trout (O. mykiss gardineri) and westslope cutthroat trout (O. clarkii lewisi).[1] However, natural separation of spawning habitat limited hybridization in most native populations of rainbows and cutthroats. Introduction of non-native hatchery raised rainbow trout into the native ranges of cutthroat subspecies increased the rate of hybridization. Some native cutthroat populations are at risk due to genetic pollution.[2]
About
In the 1880s, rainbow trout were stocked in a number of different waters that had cutthroat trout in them. Shortly after, cutbows were prominent in these waters. Cutbows are created when the female cutthroat trout's eggs are fertilized by a bigger male rainbow trout. Many fishermen get the cutbow confused with rainbow and cutthroat trout. The cutbow has red or orange slash markings under the jaw and a silver body. Though most cutbow have dots on their bodies, patterns vary between each fish.[3]
Cutbows spawn during spring and prefer temperatures between 40 and 50°F. They are able to reproduce in natural habitats and in hatcheries.[3] They are almost immune to whirling disease, which affects most trout in Colorado.[3]
References
- ↑ Behnke, Robert J. (2002). "Rainbow and Redband Trout". Trout and Salmon of North America. Tomelleri, Joseph R. (illustrator). New York: The Free Press. pp. 77, 140, 151, 152, 154. ISBN 0-7432-2220-2.
- ↑ Cutbow, ECOS Guide to the Ecology of the Northern Rockies
- 1 2 3 "ColoradoCasters: Let's get to know..."The Cutbow"". Colorado Caster Blog. Retrieved 5 May 2013.
External links
- http://precedings.nature.com/documents/6432/version/1/files/npre20116432-1.pdf
- https://nas.er.usgs.gov/queries/factsheet.aspx?SpeciesID=904
- http://docs.streamnetlibrary.org/CoastalCutthroatData/sn600255.pdf
- http://www.spokesman.com/blogs/outdoors/2011/aug/02/record-idaho-trout-was-hybrid/
- http://www.isu.edu/~keelerne/cuttpage/SFSR.htm
- https://web.archive.org/web/20100621054717/http://nhguide.dbs.umt.edu/index.php?c=fish&m=desc&id=7
- https://web.archive.org/web/20101128091813/https://research.idfg.idaho.gov/Fisheries%20Research%20Reports/Res-Rohrer1986%20Evaluation%20of%20Two%20Hybrid%20Trout%20Strains%20in%20Henrys%20Lake%20and%20Comments%20on%20Potential%20Use%20of%20Sterile%20Triploid.pdf
- File:CutbowGardnerRiverYNP.jpg
- http://www.henryslakefoundation.com/hybridtrout.php
- http://wildlife.state.co.us/SiteCollectionDocuments/DOW/Fishing/FisheryWaterSummaries/Summaries/Northeast/Elevenmile2010.pdf
- http://wildlife.state.co.us/SiteCollectionDocuments/DOW/Fishing/FisheryWaterSummaries/Summaries/Northeast/Antero2011%20.pdf
- http://wildlife.state.co.us/SiteCollectionDocuments/DOW/Fishing/FisheryWaterSummaries/Summaries/Southeast/TwinLakesRes2-18-11.pdf
- http://wildlife.state.co.us/SiteCollectionDocuments/DOW/Fishing/FisheryWaterSummaries/Summaries/Northeast/DepoortersLake.pdf
- http://wildlife.state.co.us/SiteCollectionDocuments/DOW/Fishing/FisheryWaterSummaries/Summaries/Southeast/DeWeeseReservoir.pdf
- http://wildlife.state.co.us/SiteCollectionDocuments/DOW/Fishing/FisheryWaterSummaries/Summaries/Northeast/JumboReservoir.pdf
- http://wildlife.state.co.us/SiteCollectionDocuments/DOW/Fishing/FisheryWaterSummaries/Summaries/Northeast/AkronPond_2011_MB.pdf
- http://wildlife.state.co.us/SiteCollectionDocuments/DOW/Fishing/FisheryWaterSummaries/Summaries/Southeast/MartinLake.pdf
- http://wildlife.state.co.us/SiteCollectionDocuments/DOW/Fishing/FisheryWaterSummaries/Summaries/Northeast/JacksonReservoir_2011_MB.pdf
- http://wildlife.state.co.us/SiteCollectionDocuments/DOW/Fishing/FisheryWaterSummaries/Summaries/Southeast/Pueblo2011.pdf
- http://wildlife.state.co.us/SiteCollectionDocuments/DOW/Fishing/FisheryWaterSummaries/Summaries/Northeast/ClearCreek.pdf
- http://wildlife.state.co.us/SiteCollectionDocuments/DOW/Fishing/FisheryWaterSummaries/Summaries/Northeast/SouthDelaney10.pdf
- http://wildlife.state.co.us/SiteCollectionDocuments/DOW/Fishing/FisheryWaterSummaries/Summaries/Southeast/Runyon2011.pdf
- http://wildlife.state.co.us/SiteCollectionDocuments/DOW/Fishing/FisheryWaterSummaries/Summaries/Northeast/PrewittReservoir_2011_MB.pdf