Movement patterns in inland cutthroat trout (Oncorhynchus clarki utah): management and conservation implications

2004 ◽  
Vol 61 (8) ◽  
pp. 1528-1537 ◽  
Author(s):  
Amy J Schrank ◽  
Frank J Rahel
Keyword(s):  
Cutthroat Trout ◽  
Movement Patterns ◽  
Oncorhynchus Clarki ◽  
Fish Length ◽  
Range Of Movement ◽  
Conservation Implications ◽  
Wide Range ◽  
Conservation Concern ◽  
Bonneville Cutthroat Trout ◽  
Management And Conservation

Knowledge of movement patterns is critical to the management and conservation of inland salmonids. We studied the movements of Bonneville cutthroat trout (Oncorhynchus clarki utah) in a drainage in western Wyoming, USA. Our objectives were to (i) characterize the postspawning movement patterns of adult Bonneville cutthroat trout, (ii) contrast postspawning and summer movement patterns, and (iii) identify factors that disrupt the movements of Bonneville cutthroat trout. Our data showed that postspawning movements of Bonneville cutthroat trout formed a continuum, with fish moving from 0.5 to 82.0 km. Postspawning distance was positively related to fish length. Despite the wide range of movement observed during the spring, fish did not move more than 0.5 km during the summer. A road culvert and an irrigation diversion dam did not seem to pose barriers to the upstream movement of Bonneville cutthroat trout to headwater spawning areas in the spring. However, 23% of radio-tagged fish in 2000 moved into the irrigation diversion ditch as they moved downstream after spawning and subsequently died there. Maintaining drainage connectivity is an important conservation concern for trout populations such as this one, where fish move between complementary spawning and summer habitats.

Hatchery Performance and Fin Erosion of Bonneville Cutthroat Trout,Oncorhynchus clarki, at Two Temperatures

1998 ◽  
Vol 8 (2) ◽  
pp. 1-12 ◽  
Author(s):  
Eric J. Wagner ◽  
Ronney Arndt ◽  
M. Douglas Routledge ◽  
Quentin Bradwisch
Keyword(s):  
Cutthroat Trout ◽  
Oncorhynchus Clarki ◽  
Two Temperatures ◽  
Bonneville Cutthroat Trout

Seasonal and diel changes in habitat use by juvenile bull trout (Salvelinus confluentus) and cutthroat trout (Oncorhynchus clarki) in a mountain stream

1998 ◽  
Vol 76 (5) ◽  
pp. 783-790 ◽  
Author(s):  
Joseph L Bonneau ◽  
Dennis L Scarnecchia
Keyword(s):  
Habitat Use ◽  
Cutthroat Trout ◽  
Mountain Stream ◽  
Oncorhynchus Clarki ◽  
Bull Trout ◽  
Salvelinus Confluentus ◽  
Lower Velocity ◽  
Wide Range ◽  
Bed Stability ◽  
Velocity Water

Habitat use by juvenile bull trout (Salvelinus confluentus) and cutthroat trout (Oncorhynchus clarki) in Trestle Creek, Idaho, changed seasonally and dielly. Both cutthroat and bull trout selected pools over riffles in both summer and winter. Both species used a wide range of depths at night but were absent from shallow water (<15 cm) during the day in summer and winter. During summer, juveniles of both species occupied areas of lower velocity water at night than during the day. Both species also occupied lower velocity water during winter days than summer days. During winter days, juvenile bull trout were located below or directly on cobble substrate, whereas cutthroat trout often formed aggregations suspended in the water column of large pools. Both species were more closely associated with cover during the day, and made the greatest use of cover during winter days. Land management activities resulting in decreased pool habitat, instream cover, and stream-bed stability may be especially detrimental to bull trout and cutthroat trout in winter.

scholarly journals Factors influencing summer movement patterns of Bonneville cutthroat trout (Oncorhynchus clarkii utah)

2006 ◽  
Vol 63 (3) ◽  
pp. 660-669 ◽  
Author(s):  
Amy J Schrank ◽  
Frank J Rahel
Keyword(s):  
Turnover Rate ◽  
Cutthroat Trout ◽  
Movement Patterns ◽  
High Turnover ◽  
Maximum Displacement ◽  
Oncorhynchus Clarkii ◽  
Stream Flows ◽  
Fish Size ◽  
Total Length ◽  
Bonneville Cutthroat Trout

We used multiple approaches to study summer movement patterns of Bonneville cutthroat trout (Oncorhynchus clarkii utah) in the Thomas Fork drainage of western Wyoming, USA. Our objectives were to (i) document summer movement patterns of cutthroat trout, especially as related to the concepts of local turnover and displacement distances, (ii) determine if fish size and condition were related to mobility, and (iii) compare summer movement patterns between years. Large fish (270–384 mm total length) monitored by radiotelemetry showed little movement during the summer as evidenced by a maximum displacement distance of <300 m and a low turnover rate among locations (0.21). For a broad size range of fish marked with visual implant tags (173–390 mm total length) in three study reaches, displacement distances were again low but turnover rate was high (>0.50 in most study reaches). This high turnover rate seemed to be driven mainly by movement among smaller fish as mobility declined with increasing fish size. Mobility also declined with decreasing body condition. Turnover rate in study reaches was higher during the summer of 1999 when stream flows were higher and water temperatures were cooler compared with the summer of 2000.

scholarly journals Mating systems and predictors of relative reproductive success in a Cutthroat Trout subspecies of conservation concern

2021 ◽  
Author(s):  
John S. Hargrove ◽  
Jesse McCane ◽  
Curtis J. Roth ◽  
Brett High ◽  
Matthew R. Campbell
Keyword(s):  
Reproductive Success ◽  
Mating Systems ◽  
Cutthroat Trout ◽  
Conservation Concern

Movements of Fluvial Bonneville Cutthroat Trout in the Thomas Fork of the Bear River, Idaho–Wyoming

2005 ◽  
Vol 25 (3) ◽  
pp. 954-963 ◽  
Author(s):  
Warren T. Colyer ◽  
Jeffrey L. Kershner ◽  
Robert H. Hilderbrand
Keyword(s):  
Cutthroat Trout ◽  
Bear River ◽  
Bonneville Cutthroat Trout

scholarly journals Hybridization of Snake River Cutthroat in the Lower Gros Ventre River

2006 ◽  
Vol 30 ◽  
pp. 110-113
Author(s):  
Ryan Kovach ◽  
Lisa Eby
Keyword(s):  
Exotic Species ◽  
National Park ◽  
Cutthroat Trout ◽  
Snake River ◽  
Oncorhynchus Clarki ◽  
Oncorhynchus Clarkii ◽  
Grand Teton National Park ◽  
Water Diversions ◽  
Yellowstone Cutthroat Trout ◽  
Special Concern

The cutthroat trout Oncorhynchus clarki is Wyoming's only native trout. The Yellowstone cutthroat trout (Oncorhynchus clarkii bouvieri) is designated as a "species of special concern" by a number of agencies and conservation groups. Although the Yellowstone cutthroat trout has recently avoided federal listing because of robust headwater populations (USFWS 2006), they face continued threats across their range. The fine-spotted Snake River native trout is a morphologically divergent ecotype of the Yellowstone subspecies, although it is not genetically distinguishable (Allendorf and Leary 1988, Novak et al. 2005). The Gros Ventre, an important tributary of the Snake River located partially in Grand Teton National Park, historically supported robust populations of fine­ spotted Snake River cutthroat trout. Principal threats to Gros Ventre native trout, especially in the lower end of the drainage within the park boundaries, include both water diversions (loss of water and fish into irrigation ditches) and presence of exotic species.

Sign in / Sign up

Export Citation Format

Share Document