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gamefish began in the 1800s, brown trout and brook trout began establishing wild populations alongside each other in some places and the opportunity for hybridization in the wild arose. Instances of stream-born tiger trout were recorded in the United States at least as early as 1944 and, despite being exceptionally rare, they've been documented numerous times during the 20th and 21st centuries.
29:
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and they have been incorporated into stocking programs in the United States at least as early as the 1960s. Hatchery productivity is enhanced by heat shocking the fertilized hybrid eggs, causing the creation of an extra set of chromosomes which increases survival rates from 5% to 85%. Tiger trout
194:
Prior to the 19th century, naturally occurring tiger trout were an impossibility, as the native range of brown trout in
Eurasia and brook trout in North America do not overlap and the species could therefore never have encountered one another in the wild. When the widespread stocking of non-native
224:
populations. This, along with their desirability as novel gamefish, means tigers have continued to be popular with many fish stocking programs. US states with tiger trout stocking programs include
Arizona, Arkansas, Colorado, Connecticut, Idaho, Washington, West Virginia, Wyoming, Utah, Virginia,
203:. In fact, brook trout and brown trout have non-matching numbers of chromosomes, with the former possessing 84 and the latter 80. Consequently, even in cases in which brown trout eggs are fertilized by brook trout in the wild, most of these eggs develop improperly and fail to yield any young.
198:
Tiger trout result exclusively from the fertilization of brown trout eggs with brook trout milt, as brook trout eggs are generally too small to be successfully fertilized by brown trout milt. Tigers are known as intergeneric hybrids as the two parent species share only a relatively distant
186:
and possessing mismatched numbers of chromosomes. However, specialized hatchery rearing techniques are able to produce tiger trout reliably enough to meet the demands of stocking programs.
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have been reported to grow faster than natural species, though this assessment is not universal. They are also known to be highly
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182:. Tiger trout are a rare anomaly in the wild, as the parent species are relatively unrelated, being members of different
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178:). Pronounced vermiculations in the fish's patterning gave rise to its name, evoking the stripes of a
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489:"Tiger trout are stocked". The Daily Record (Long Branch, New Jersey). April 26, 1963.
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Utah
Division of Wildlife Resources, 24 May 2005. Retrieved 11 September 2006
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Utah
Division of Wildlife Resources, 24 May 2005. Retrieved 11 September 2006
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319:"Tiger Trout (Salmo trutta × Salvelinus fontinalis) - Species Profile"
625:"New state record tiger trout set in southeast | Idaho Fish and Game"
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Pennsylvania Fish & Boat
Commission. Retrieved 11 September 2006
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605:. Connecticut Department of Energy & Environmental Protection
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Watch out, Utah chubs: Tiger trout placed in
Scofield Reservoir
683:. West Virginia Division of Natural Resources. 8 April 2021
704:"Utah's Tiger Trout State Record Broken Twice in One Week"
570:"Great reservoir fishing abounds in southwest Colorado"
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relationship, belonging to different genera within the
374:"Trout Season goes year-round and DEEP is stocking up"
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Thousands of tigers released in Utah (trout that is!)
677:"WVDNR stocking trophy tiger trout in April and May"
544:"State seeks big fish tales for tiger trout record"
400:"Wilderness Fish Stocking: History and Perspective"
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755:"Diamond Lake: Inaugural stocking of tiger trout"
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657:. Washington Department of Fish & Wildlife
220:and are consequently a useful control against
260:"Tiger trout — myth or fact?/Biological bits"
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735:. Virginia Department of Wildlife Resources
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225:Oregon, Massachusetts and Pennsylvania.
211:Tiger trout can be produced reliably in
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759:Oregon Department of Fish and Wildlife
780:"MassWildlife Trout Stocking Program"
7:
463:Windham, Rick (27 September 2018).
323:NAS - Nonindigenous Aquatic Species
631:. Idaho Fish and Game. 30 May 2023
352:Wyoming Game & Fish Department
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548:Arkansas Game and Fish Commission
702:Hall, Travis (7 February 2023).
293:Arizona Game and Fish Department
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398:Pister, Edwin P. (June 2001).
1:
576:. Colorado Parks and Wildlife
372:Altman, Jim (24 March 2022).
596:"Fish Stocking Report 2021"
847:
729:"Tiger Trout in Virginia"
524:Tiger Trout & Hybrids
424:10.1007/s10021-001-0010-7
37:Scientific classification
26:
465:"What is a tiger trout?"
325:. U.S. Geological Survey
264:The Daily Mining Gazette
176:Salvelinus fontinalis
156:Salvelinus fontinalis
135:Salvelinus fontinalis
831:Intergeneric hybrids
348:"Making tiger trout"
266:. The Mining Gazette
416:2001Ecosy...4..279P
160:intergeneric hybrid
529:2006-08-28 at the
190:Natural occurrence
708:Field & Steam
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816:Fish hybrids
787:. Retrieved
784:www.mass.gov
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296:. Retrieved
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168:Salmo trutta
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152:Salmo trutta
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127:Salmo trutta
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22:Tiger trout
713:28 February
655:wdfw.wa.gov
218:piscivorous
172:brook trout
164:brown trout
148:tiger trout
110:Subfamily:
16:Hybrid fish
826:Salvelinus
811:Salmonidae
805:Categories
739:16 January
687:13 January
661:13 January
635:13 January
609:13 January
580:13 January
554:2 November
404:Ecosystems
241:References
222:rough fish
213:hatcheries
170:) and the
114:Salmoninae
104:Salmonidae
681:WVDNR.GOV
60:Kingdom:
54:Eukaryota
527:Archived
440:21528271
229:See also
120:Hybrid:
100:Family:
74:Chordata
70:Phylum:
64:Animalia
50:Domain:
789:11 July
764:19 July
474:11 July
469:AP NEWS
432:3658925
412:Bibcode
383:24 June
357:24 June
329:24 June
298:24 June
270:24 June
162:of the
90:Order:
80:Class:
603:CT.GOV
445:9 July
438:
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378:FOX 61
235:Splake
184:genera
821:Salmo
599:(PDF)
574:CO,US
436:S2CID
428:JSTOR
180:tiger
791:2022
766:2023
741:2023
715:2024
689:2024
663:2024
637:2024
611:2024
582:2024
556:2023
476:2022
447:2022
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359:2022
331:2022
300:2022
272:2022
146:The
420:doi
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
