Author: Jacob A. VenardPublisher:
ISBN:
Category : Bull trout
Languages : en
Pages : 204
Book Description
Diel and Seasonal Movement of Lake Trout, Cutthroat Trout, and Bull Trout Between Upper Priest Lake and Priest Lake, Idaho
Author: Jacob A. VenardPublisher:
ISBN:
Category : Bull trout
Languages : en
Pages : 204
Book Description
Interactions Between Lake Trout and Bull Trout in the Priest Lake System, Idaho
Author: Derek C. EntzPublisher:
ISBN:
Category : Bull trout
Languages : en
Pages : 92
Book Description
Chapter 2. "The effects and impacts introduced species have on native species is well known in some cases and less well for others. The introduction and success of Lake Trout in the Priest Lake system, in Idaho, poses a threat to native fish populations. In an effort to further understand the potential competition and predation on native species in Upper Priest Lake, 283 stomachs were collected from Lake Trout in 2015 and 2016. Small Lake Trout (500 mm total length (TL)) fed at a significantly higher rate on Mysis shrimp (Mysis diluviana) than larger Lake Trout (500 mm TL; P0.001). Larger Lake Trout (500 mm TL) fed at a significantly higher rate on fish than small Lake Trout (P
Master's Theses Directories
Author: Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 412
Book Description
"Education, arts and social sciences, natural and technical sciences in the United States and Canada".
Survival and Growth of Resident and Stocked Cutthroat Trout in Priest and Upper Priest Lake ; Introduction of Opossum Shrimp Into Idaho Lakes
Author: John T. HeimerPublisher:
ISBN:
Category : Cutthroat trout
Languages : en
Pages : 58
Book Description
Federal Aid to Fish Restoration
Author: Donald R. BeachPublisher:
ISBN:
Category : Cutthroat trout
Languages : en
Pages : 28
Book Description
Lake and Reservoir Investigations
Author: John T. HeimerPublisher:
ISBN:
Category : Cutthroat trout
Languages : en
Pages : 58
Book Description
Survival and Growth of Resident and Stocked Cutthroat Trout in Priest and Upper Priest Lakes (survey)
Author: Richard Anthony IrizarryPublisher:
ISBN:
Category : Cutthroat trout
Languages : en
Pages : 27
Book Description
Survival and Growth of Resident and Stocked Cutthroat Trout in Priest and Upper Priest Lakes ; Introduction of Opossum Shrimp Into Idaho Lakes
Author: John T. HeimerPublisher:
ISBN:
Category : Cutthroat trout
Languages : en
Pages : 56
Book Description
Demographic and Habitat Requirements for Conservation of Bull Trout
Author: Bruce E. RiemanPublisher:
ISBN:
Category : Bull trout
Languages : en
Pages : 44
Book Description
Home Range Analysis of Bull Trout (Salvelinus Confluentus) and Westslope Cutthroat Trout (Oncorhynchus Clarki Lewisi) in the Upper Salmon River Basin, Idaho
Author: Gregory Paul SchobyPublisher:
ISBN:
Category : Bull trout
Languages : en
Pages : 152
Book Description
Radio telemetry was used to determine how body size, foraging ecology, and seasonal activity influence the home-range size of 80 adult bull trout (Salvelinus confluentus) and 54 adult westslope cutthroat trout (Oncorhynchus clarki lewisi) in the Upper Salmon River Basin, Idaho. Stomach samples were also collected to determine diet composition and compare foraging strategy between species. Contrary to other studies of home range, home-range size was not significantly related to total length or mass in either species. Although radio-tagged bull trout were significantly larger that westslope cutthroat trout, home-range size did not differ between the two species (68.7 km vs. 67.4 km, respectively). With monitoring home range of individuals for approximately one year, differences in monthly and seasonal movement rates were distinguished. Although overall home-range size did not differ between species, bull trout movement was significantly greater than cutthroat trout movement during July and September. Summer monthly movement rates were significantly greater than winter monthly movement rates for both species. Also, westslope cutthroat trout movement during the winter period (October through March) was significantly greater than bull trout movement during this period (mean 5.90 km/month vs. 2.76 km/month, respectively). Stomach-content analysis revealed that bull trout consumed significantly larger prey than westslope cutthroat trout, though prey size was not significantly correlated with body size in either species. Although the home-range characteristics seen in other studies were not observed in this research, this study does reveal the importance of large-scale connectivity and the variety of habitats necessary for the persistence of bull trout and westslope cutthroat trout populations.