DOCSLIB.ORG

Lake Koocanusa and Kootenai River Basin Bull Trout Monitoring Report

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Lake Koocanusa and Kootenai River Basin Bull Trout Monitoring Report LAKE KOOCANUSA AND KOOTENAI RIVER BASIN BULL TROUT MONITORING REPORT Prepared by: Mike Hensler Jim Dunnigan Neil Benson DJ Report No Element SBAS Project No. 3140 TABLE OF CONTENTS EXECUTIVE SUMMARY………………………………………………………………………..iii LIST OF TABLES……………………………………………………………………………..…...iv LIST OF FIGURES…………………………………………………………………………….…...vi ACKNOWLEDGEMENTS…………………………………………………………………………vii INTRODUCTION……………………………………………………………………………..……1 DESCRIPTION OF STUDY AREA..……………………………..…..……………….…….…....2 Kootenai River Drainage………………………….…….………………………………………….2 Libby Dam and Lake Koocanusa……………………………………………………….……4 Fish Species………………………………………………………………………………….5 STREAM ELECTROFISHING/JUVENILE BULL TROUT ABUNDANCE ESTIMATES………………………………………………………………………………..………6 Grave Creek………………………………………………………………………………….9 West Fork Quartz Creek……………………………………………………………………10 Pipe Creek………………………………………………………………………………….11 West Fisher Creek………………………………………………………………………….11 Bear Creek………………………………………………………………………………….12 O’Brien Creek……………………………………………………………………..…………13 Keeler Creek………………………………………………………………………………..14 Callahan Creek……………………………………………………………………………..15 Keeler Creek………………………………………………………………………………..15 STREAMBED CORING…………………………………………………………………………….16 Findings….………………………………………………………………………………..19 SUBSTRATE SCORING……………………………………………………………………………20 Findings….………………………………………………………………………………..22 i BULL TROUT REDD COUNTS…………………………………………………………………..23 Grave Creek……………………………………………………………………………….25 Wigwam Drainage……………………………………………………………….………...27 Quartz Creek……………………………………………………………………….………28 Pipe Creek………………………………………………………………………….……….29 Bear Creek…………………………………………………….……………………………30 O’Brien Creek………………………………………………….…………………………..31 West Fisher Creek…………………………………………….…………………………....32 Keeler Creek…………………………………………………….………………………….33 KOOTENAI RIVER ADULT BULL TROUT POPULATION ESTIMATE..……………………34 Findings……………….………………………………………..…………………………35 LAKE KOOCANUSA GILLNET MONITORING…………………………………………..…….38 Bull Trout………………………………………………………………..………………….39 Kokanee……………………………………………………………………………………..42 LITERATURE CITED………………………………………………………………..…………..44 ii EXECUTIVE SUMMARY We conducted juvenile bull trout population estimates within reference reaches on index creeks. O’Brien Creek and West Fisher Creek have decreased dramatically since survey began. Substrate scores and substrate coring data are presented. Bull trout redd counts in Grave Creek and the Wigwam River have significantly increased since 1995. However, bull trout redds in Grave Creek in 2004 were lower (48%) than the previous year. Bull trout redd counts in tributaries downstream of Libby Dam including Quartz, Pipe, Bear, and O’Brien creeks, and the West Fisher River have been variable over the past several years, and have not increased in proportion to bull trout redd counts upstream of Libby Dam in recent years. MFWP conducted four adult bull trout population estimates below Libby Dam during the period April 2004 to April 2005. The four population estimates ranged from 906 – 1,068 adult fish. One estimate was made in August 2004, when mature bull trout would be expected to be in spawning tributaries. We recaptured 14 bull trout in April 2005 that were individually marked approximately one year earlier, which enabled us to calculate growth rates over the period. On average the bull trout grew 86.4 mm (total length) and gained 2,093.9 g. We continued monitoring fish populations within the reservoir using spring and fall gill netting and present the results for bull trout and kokanee. The spring gill net catch of bull trout significantly increased since 1990. We attempted to account for differing reservoir levels during the gillnetting activities between years by multiplying the mean bull trout catch per net by reservoir volume at the time the nets were fished each year. This adjustment substantially improved the regression model’s fit to the data in previous years, but did not improve the fit with the addition of the 2004 data. Bull trout redd counts in both the Wigwam River and Grave Creek are both significantly and positively correlated to the spring gill net catch rates for bull trout adjusted for reservoir elevation. The average fall catch, length and weight of kokanee was lower for the fifth straight year than the 17-year average. iii LIST OF TABLES Table 1. Morphometric data presented for Lake Koocanusa…………………………….………4 Table 2. Current relative abundance (A=abundant, C=common, R=rare, N = Not Found) and abundance trend from1975 to 2002 (I=increasing, S = stable, D = decreasing, U = unknown) of fish species present in Lake Koocanusa and the Kootenai River drainage…………………………………………..………………………...…………..5 Table 3. Population estimates (N), 95 percent confidence intervals (95% C.I.), probability of first pass capture (p) and densities for Age 1 and older bull trout calculated from electrofishing in the permanent section of Grave Creek, 1997 - 2005…………………..9 Table 4. Population estimates (N), 95 percent confidence intervals (95% C.I.), probability of first pass capture (p) and densities for Age 1 and older bull trout calculated from electrofishing in the permanent section of West Fork Quartz Creek, 1997 - 2005…….10 Table 5. Population estimates (N), 95 percent confidence intervals (95% C.I.), probability of first pass capture (p) and densities for Age 1 and older bull trout calculated from electrofishing in the permanent section of Pipe Creek, 1999 - 2005…………………..11 Table 6. Population estimates (N), 95 percent confidence intervals (95% C.I.), probability of first pass capture (p) and densities for Age 1 and older bull trout calculated from electrofishing in the permanent section of West Fisher Creek, 2005………………….11 Table 7. Population estimates (N), 95 percent confidence intervals (95% C.I.), probability of first pass capture (p) and densities for Age 1 and older bull trout calculated from electrofishing in the permanent section of Bear Creek, 1999 - 2005…………………..12 Table 8. Population estimates (N), 95 percent confidence intervals (95% C.I.), probability of first pass capture (p) and densities for Age 1 and older bull trout calculated from electrofishing in the permanent section of O’Brien Creek, 1998 - 2005……………....13 Table 9. Population estimates (N), 95 percent confidence intervals (95% C.I.), probability of first pass capture (p) and densities for Age 1 and older bull trout calculated from electrofishing in the permanent section of Keeler Creek, 1998 - 2005…………..…...14 Table 10. Population estimates (N), 95 percent confidence intervals (95% C.I.), probability of iv first pass capture (p) and densities for Age 1 and older bull trout calculated from electrofishing in the permanent section of Callahan Creek, 2003 – 2005…….….…..15 Table 11. Population estimates (N), 95 percent confidence intervals (95% C.I.), probability of first pass capture (p) and densities for Age 1 and older bull trout calculated from electrofishing in the permanent section of Libby Creek, 2003 and 2005……..….…..15 Table 12. Mesh size of sieves used to gravimetrically analyze hollow core streambed substrate samples collected from Kootenai River basin tributaries………………………….....18 Table 13. Median percentage of streambed material smaller than 6.35 mm in McNeil core samples collected from bull trout spawning areas in tributary streams to the Kootenai River basin, 1994 – 2004…………………………………………………....….…….19 Table 14. Characteristics and ranks for computing substrate scores (modified by Leathe and Enk 1985 from Crouse et al. 1981)………………………..……………….…..……..21 Table 15. Summary of Kootenai Drainage substrate scores the stream sections monitored at juvenile population estimate sites in Kootenai River basin stream, 1998 – 2005……………………………………………..………………….……...…22 Table 16. Summary of Kootenai Drainage bull trout spawning site inventories from 1993 - 2004 in the stream sections monitored annually……………………………....26 Table 17. The sampling dates for adult bull trout marked, recaptured, and the estimated total population and fish per mile in the Kootenai River from Libby Dam downstream to the Fisher River confluence. The 95 percent confidence intervals are in parentheses……….………………………………..……………..………........35 Table 18. Recapture summary information for bull trout recaptured below Libby Dam on April 20 and 21, 2005. Information includes the date each fish was originally captured, recaptured, and length and weight for each encounter…………………….....36 Table 19. Spring sinking gill net summary of bull trout catch per net in Lake Koocanusa 1975 - 2002..…………………….………………………………………...……...…….39 Table 20. Average length and weight of kokanee salmon captured in fall floating gillnets (Tenmile and Rexford) in Lake Koocanusa, 1988 – 2004……………………...…….43 v LIST OF FIGURES Figure 1. Kootenai River Basin (Montana, Idaho and British Columbia, Canada)……………..3 Figure 2. Bull trout redd counts, and trend analysis for Grave Creek, 1993 through 2004……....25 Figure 3. Bull trout redd counts and trend analysis for the Wigwam River (including Bighorn, Desolation and Lodgepole Creeks) 1995 – 2004……………………………………….27 Figure 4. Bull trout redd counts and trend analysis for Quartz Creek (including West Fork Quartz) 1990-2004.……………………….……………….....……………28 Figure 5. Bull trout redd counts and trend analysis for Pipe Creek 1990- 2004.……….…….…29 Figure 6. Bull trout redd counts and trend analysis for Bear Creek, a tributary to Libby Creek, 1995-2004. The mean number of bull trout redds was 15.1……....…..30 Figure 7. Bull trout redd counts and trend line for O’Brien Creek 1991- 2004….….…...…..…31 Figure 8. Bull trout redd counts in West Fisher
Load more

Recommended publications
  • KR/KL Burbot Conservation Strategy
    January 2005 Citation: KVRI Burbot Committee. 2005. Kootenai River/Kootenay Lake Conservation Strategy. Prepared by the Kootenai Tribe of Idaho with assistance from S. P. Cramer and Associates. 77 pp. plus appendices. Conservation strategies delineate reasonable actions that are believed necessary to protect, rehabilitate, and maintain species and populations that have been recognized as imperiled, but not federally listed as threatened or endangered under the US Endangered Species Act. This Strategy resulted from cooperative efforts of U.S. and Canadian Federal, Provincial, and State agencies, Native American Tribes, First Nations, local Elected Officials, Congressional and Governor’s staff, and other important resource stakeholders, including members of the Kootenai Valley Resource Initiative. This Conservation Strategy does not necessarily represent the views or the official positions or approval of all individuals or agencies involved with its formulation. This Conservation Strategy is subject to modification as dictated by new findings, changes in species status, and the completion of conservation tasks. 2 ACKNOWLEDGEMENTS The Kootenai Tribe of Idaho would like to thank the Kootenai Valley Resource Initiative (KVRI) and the KVRI Burbot Committee for their contributions to this Burbot Conservation Strategy. The Tribe also thanks the Boundary County Historical Society and the residents of Boundary County for providing local historical information provided in Appendix 2. The Tribe also thanks Ray Beamesderfer and Paul Anders of S.P. Cramer and Associates for their assistance in preparing this document. Funding was provided by the Bonneville Power Administration through the Northwest Power and Conservation Council’s Fish and Wildlife Program, and by the Idaho Congressional Delegation through a congressional appropriation administered to the Kootenai Tribe by the Department of Interior.
    [Show full text]
  • Lake Koocanusa, High Level Assessment of a Proposed
    BGC ENGINEERING INC. AN APPLIED EARTH SCIENCES COMPANY MINISTRY OF ENERGY, MINES AND PETROLEUM RESOURCES LAKE KOOCANUSA HIGH LEVEL ASSESSMENT OF A PROPOSED DAM FINAL DRAFT PROJECT NO.: 0466001 DATE: November 19, 2020 BGC ENGINEERING INC. AN APPLIED EARTH SCIENCES COMPANY Suite 500 - 980 Howe Street Vancouver, BC Canada V6Z 0C8 Telephone (604) 684-5900 Fax (604) 684-5909 November 19, 2020 Project No.: 0466001 Kathy Eichenberger, Executive Director Ministry of Energy, Mines and Petroleum Resources PO Box 9314, Stn Prov Govt Victoria, BC V8W 9N1 Dear Kathy, Re: Lake Koocanusa, High Level Assessment of a Proposed Dam – FINAL DRAFT BGC is pleased to provide the Ministry of Mines, Energy and Petroleum Resources with the following FINAL DRAFT report. The report details an assessment of a proposed dam on Lake Koocanusa, in southeastern British Columbia. If you have any questions or comments, please contact the undersigned at 604-629-3850. Yours sincerely, BGC ENGINEERING INC. per: Hamish Weatherly, M.Sc., P.Geo. Principal Hydrologist Ministry of Energy, Mines and Petroleum Resources, Lake Koocanusa November 19, 2020 High Level Assessment of a Proposed Dam – FINAL DRAFT Project No.: 0466001 EXECUTIVE SUMMARY The Libby Dam is a 129 m high concrete gravity dam located on the Kootenay River near Libby, Montana. The dam was completed in 1973 and was first filled in 1974, inundating the Kootenay River valley to form the 145 km long Koocanusa Reservoir (Lake Koocanusa). Canadian residents and water users are affected by changes in the Libby Dam operations that affect reservoir water levels, as nearly half (70 km) of the reservoir extends into southeastern British Columbia.
    [Show full text]
  • Mitochondrial DNA Analysis of Burbot Stocks in the Kootenai River Basin of British Columbia, Montana, and Idaho
    Transactions of the American Fisheries Society 128:868-874, 1999 © Copyright by the American Fisheries Society 1999 Mitochondrial DNA Analysis of Burbot Stocks in the Kootenai River Basin of British Columbia, Montana, and Idaho VAUGHN L. PARAGAMIAN Idaho Department of Fish and Game, 2750 Kathleen Avenue, Coeur d'Alene, Idaho 83815, USA MADISON S. POWELL* AND JOYCE C. FALER Aquaculture Research Institute, University of Idaho, Moscow, Idaho 83844-2260, USA Abstract.-Differences in mitochondrial haplotype frequency were examined among burbot Lota lota collected from four areas within the Kootenai River Basin of British Columbia, Montana and Idaho. The polymerase chain reaction (PCR) was used to amplify three gene regions of the mi- tochondria) genome: NADH dehydrogenase subunit 1 (ND1), NADH dehydrogenase subunit 2 (ND2), and NADH dehydrogenase subunits 5 and 6 combined (ND5,6). Amplified DNA was screened for restriction fragment length polymorphisms (RFLPs). Simple haplotypes resulting from RFLPs in a single gene region were combined into composite haplotypes. The distribution of composite haplotypes and their frequencies correspond to areas of the Kootenay River basin above and below a presumptive geographic barrier, Kootenai Falls, Montana, and suggest spatially seg- regated populations. A test of geographic heterogeneity among haplotype frequency distributions was highly significant (P < 0.001) when a Monte Carlo simulation was used to approximate a X2 test. Two populations, one above and one below Kootenai Falls emerged when a neighbor-joining method was used to infer a phylogenetic tree based on estimates of nucleotide divergence between all pairs of sample locations. These analyses indicate that burbot below Kootenai Falls form a separate genetic group from burbot above the falls and further suggests that Libby Dam, which created Lake Koocanusa, is not an effective barrier segregating burbot above Kootenai Falls.
    [Show full text]
  • Lake Koocanusa Official Community Plan Bylaw No
    LAKE KOOCANUSA OFFICIAL COMMUNITY PLAN BYLAW NO. 2432, 2013 CONSOLIDATION This is a consolidation of the Lake Koocanusa Official Community Plan and adopted bylaw amendments. The amendments have been combined with the original Bylaw for convenience only. This consolidation is not a legal document. October 30, 2020 Lake Koocanusa Official Community Plan Bylaw No. 2432, 2013 This is a consolidation of the Official Community Plan. This consolidated version is for convenience only and has no legal sanction. April 5, 2013 Lake Koocanusa Official Community Plan Endorsement Regional District of East Kootenay “Rob Gay” April 5, 2013 Rob Gay, Board Chair Date “Heath Slee” April 5, 2013 Heath Slee, Electoral Area B Director Date Ktunaxa Nation Council “Ray Warden” March 28, 2013 Ray Warden, Director of Ktunaxa Lands and Resources Agency Date Forest, Lands and Natural Resources Operations “Tony Wideski” March 15, 2013 Tony Wideski, Regional Executive Director – Kootenay Date BYLAW AMENDMENTS Bylaw Amend / Adopted Short Citing Legal / Zone Yr 2539 01/2014 Oct. 3/14 Medical Marihuana Text Amendment /RDEK 2771 02/2017 Aug. 4/17 Koocanusa West / Designation of Part of Wentzell Lot 1, DL 11493, Plan 16032 RR to CR 2921 03/2019 Jun. 7/19 Sweetwater / KV Part of Lot 2, DL Properties Inc. 10348, KD, Plan EPP14443 C to R-SF 2973 04/2019 Jul. 3/20 Sweetwater / KV Part of Lot 2, DL Properties Inc. 10348, KD, Plan EPP14443 C to R-SF REGIONAL DISTRICT OF EAST KOOTENAY BYLAW NO. 2432 A bylaw to adopt an Official Community Plan for the Lake Koocanusa area. WHEREAS the Board of the Regional District of East Kootenay deems it necessary to adopt an official community plan in order to ensure orderly development of the Lake Koocanusa area; NOW THEREFORE, the Board of the Regional District of East Kootenay, in open meeting assembled, enacts as follows: Title 1.
    [Show full text]
  • Columbia River Treaty History and 2014/2024 Review
    U.S. Army Corps of Engineers • Bonneville Power Administration Columbia River Treaty History and 2014/2024 Review 1 he Columbia River Treaty History of the Treaty T between the United States and The Columbia River, the fourth largest river on the continent as measured by average annual fl ow, Canada has served as a model of generates more power than any other river in North America. While its headwaters originate in British international cooperation since 1964, Columbia, only about 15 percent of the 259,500 square miles of the Columbia River Basin is actually bringing signifi cant fl ood control and located in Canada. Yet the Canadian waters account for about 38 percent of the average annual volume, power generation benefi ts to both and up to 50 percent of the peak fl ood waters, that fl ow by The Dalles Dam on the Columbia River countries. Either Canada or the United between Oregon and Washington. In the 1940s, offi cials from the United States and States can terminate most of the Canada began a long process to seek a joint solution to the fl ooding caused by the unregulated Columbia provisions of the Treaty any time on or River and to the postwar demand for greater energy resources. That effort culminated in the Columbia River after Sept.16, 2024, with a minimum Treaty, an international agreement between Canada and the United States for the cooperative development 10 years’ written advance notice. The of water resources regulation in the upper Columbia River U.S. Army Corps of Engineers and the Basin.
    [Show full text]
  • Nngmeional Ruord
    Vol. 129 WASHINGTON, TUESDAY, JUNE 28, 1983 @nngmeionalRuo rd United States of America .__ -- .. ,- PROCEEDINGS AND DEBATES OF THE 9@ CONGRESS, FIRST SESSION United States Government Printing Office SUPERINTENDENT OF DOCUMENTS Washmgton, D C 20402 Postage and Fees Pad OFFICIAL BUSINESS U S Government Prlnhng 0ffv.X Penalty Ior pwate use. $xX 375 Congresstonal Record SECOND CLASS NEWSPAPER (USPS 087-390) H.4578 ’ C.QNGRESSIONAL RECORD - HOUSE June 28, 1983 H.J. Res. 273: Mr. BOUND. Mr. W~.XMAN. gress which states the following .after the the Congress BPPrOres the regulation which Mr. OBERSTAR,Mr. BEDELL. Mr. BONER of resolving clause: “That the Congress ap- was promulgated by the-consumer Product Tennessee, Mr. OWENS. Mr. DAUB, Mr. Proves the consumer product safety rule Safety Commission under section of CONTE. Mr. RAHALL; Mr. GRAY, Mr. VANDER which was promulgated by the Consumer the Federal Hazardous Substances Act with JACT. Mr. TRAKLER,and Mr. Vxrrro. Product Safety Commission with respect to respect to and which was transmitted H. Con. Res. 107: Mr. KASICH. Mr. and which was transmitted to the Con- to the Congress on “. with the blank AUCOIN. Mr. CARPER,and Mr. SIZHFIJER. gress on “, with the blank spaces spaces being filled in appropriately: and . H. Con. Res. 118: Mr. FISH. Mr. LANTOS. being filled in appropriately: (3) in the case of a regulation promulgat. Mr. KILDEE. Mr. SOLARZ. Mr. BRITT. Mr. (2) in the case of a regulation promulgat- ed under section 4 of the Flammable Fabrics BEDELL. Mr. RANGLZ, Mr. DYMALLY. Mr. ed under section 2(q)(l) or 3te) of the Feder- Act, means a joint resolution of the Con- STUDDS.
    [Show full text]
  • REGION 4 - Kootenay the Management Unit Boundaries Indicated on the Map Below Are Shown Only As a Reference to Help Anglers Locate Waters in the Region
    REGION 4 - Kootenay The Management Unit boundaries indicated on the map below are shown only as a reference to help anglers locate waters in the region. For more precise Fish and Wildlife Regional Offices Management Unit boundaries, please consult one of the commercial Recreational Atlases available for B.C. (250) 489-8540 205 Industrial Rd G Cranbrook BC V1C 7G5 (250) 354-6333 R.A.P.P. 401-333 Victoria St Report All Poachers and Polluters Nelson BC V1L 4K3 Conservation Officer 24 Hour Hotline 1-877-952-RAPP (7277) Conservation Officer Service Cellular Dial #7277 Field Offices Please refer to page 94 Please call 1-877-952-7277 for recorded Canoe Reach 7-2 for more information information or to make an appointment KINBASKET www.rapp.bc.ca at any of the following Field Offices: 3-44 LAKE R d o Castlegar, Cranbrook, Creston, Fernie, o 3-43 W Golden, Invermere, and Nelson Mica 4-40 Creek B u Columbi s h S cr igmouth Cr ip B R 3-40 a Cr 3-42 Reac Gol d R 3-41 st am re R old R 4-36 G LAKE h S y e Donald rr y 4-38 ebe m 4-37 Station la o REVELSTOKE B NATIONAL PARKS u r YOHO Provincial angling regulations and REGION GLACIER T a R n NATIONAL licensing do not apply in the National g i e r NATIONAL R Parks in this region (see page 10). Golden Kic PARK R 4-39 ki n 3-36 g MT. y R Please contact Parks Canada for fishing r PARK H r REVELSTOKE t o e ae rs P ew e SHUSWAP NATIONAL ill CO information at 1-888-773-8888.
    [Show full text]
  • Managing Mining Pollution: the Case of Water Quality Governance in the Transboundary Kootenai/Y
    University of Montana ScholarWorks at University of Montana Graduate Student Theses, Dissertations, & Graduate School Professional Papers 2018 Managing Mining Pollution: The aC se of Water Quality Governance in the Transboundary Kootenai/y Ashley Juric The University of Montana Let us know how access to this document benefits ouy . Follow this and additional works at: https://scholarworks.umt.edu/etd Part of the Nature and Society Relations Commons Recommended Citation Juric, Ashley, "Managing Mining Pollution: The asC e of Water Quality Governance in the Transboundary Kootenai/y" (2018). Graduate Student Theses, Dissertations, & Professional Papers. 11212. https://scholarworks.umt.edu/etd/11212 This Thesis is brought to you for free and open access by the Graduate School at ScholarWorks at University of Montana. It has been accepted for inclusion in Graduate Student Theses, Dissertations, & Professional Papers by an authorized administrator of ScholarWorks at University of Montana. For more information, please contact [email protected]. MANAGING MINING POLLUTION: THE CASE OF WATER QUALITY GOVERNANCE IN THE TRANSBOUNDARY KOOTENAI/Y By ASHLEY JURIC Bachelor of Arts, Humboldt State University, Arcata, California, 2015 Thesis presented in partial fulfillment of the requirements for the degree of Master of Science in Geography The University of Montana Missoula, MT June 2018 Approved by: Scott Whittenburg, Dean of the Graduate School Graduate School Dr. Sarah J. Halvorson, Chair Professor, Department of Geography Dr. David Shively Professor, Department of Geography Dr. Brian Chaffin Assistant Professor, Department of Society and Conservation © COPYRIGHT by Ashley E. Juric 2018 All Rights Reserved ii Juric, Ashley, M.S., Spring 2018 Geography Managing Mining Pollution: The Case of Water Quality Governance in the Transboundary Kootenai/y Chairperson: Dr.
    [Show full text]
  • COSEWIC Assessment and Status Report on the Bull Trout Salvelinus Confluentus in Canada
    COSEWIC Assessment and Status Report on the Bull Trout Salvelinus confluentus South Coast British Columbia populations Western Arctic populations Upper Yukon Watershed populations Saskatchewan - Nelson Rivers populations Pacific populations in Canada South Coast British Columbia populations - SPECIAL CONCERN Western Arctic populations - SPECIAL CONCERN Upper Yukon Watershed populations - DATA DEFICIENT Saskatchewan - Nelson Rivers populations - THREATENED Pacific populations - NOT AT RISK 2012 COSEWIC status reports are working documents used in assigning the status of wildlife species suspected of being at risk. This report may be cited as follows: COSEWIC. 2012. COSEWIC assessment and status report on the Bull Trout Salvelinus confluentus in Canada. Committee on the Status of Endangered Wildlife in Canada. Ottawa. iv + 103 pp. (www.registrelep-sararegistry.gc.ca/default_e.cfm). Production note: COSEWIC would like to acknowledge Jennifer Gow for writing the status report on the Bull Trout, Salvelinus confluentus, in Canada, prepared under contract with Environment Canada. This report was overseen and edited by Dr. John Post, Co-chair of the COSEWIC Freshwater Fishes Specialist Subcommittee. For additional copies contact: COSEWIC Secretariat c/o Canadian Wildlife Service Environment Canada Ottawa, ON K1A 0H3 Tel.: 819-953-3215 Fax: 819-994-3684 E-mail: COSEWIC/[email protected] http://www.cosewic.gc.ca Également disponible en français sous le titre Ếvaluation et Rapport de situation du COSEPAC sur L’omble à tête plate (Salvelinus confluentus) au Canada. Cover illustration/photo: Bull Trout — Picture courtesy of J.D. McPhail and D.L. McPhail. Her Majesty the Queen in Right of Canada, 2013. Catalogue No. CW69-14/659-2013E-PDF ISBN 978-1-100-22290-5 Recycled paper COSEWIC Assessment Summary Assessment Summary – November 2012 Common name Bull Trout - South Coast British Columbia populations Scientific name Salvelinus confluentus Status Special Concern Reason for designation This freshwater fish exists in five large river systems in this area.
    [Show full text]
  • 2014-2015 Koocanusa Angler Survey of Experimental Bull Trout Fishery Final
    Fisheries Division Federal Aid Job Progress Report Montana Statewide Fisheries Management Federal Aid Project Number: F-113 July 1, 2014 – June 30, 2015 Project Title: Montana Statewide Fisheries Management Job Title: (3140 Kootenai River Drainage Fisheries Management) Abstract: We issued fewest permits for Koocanusa for all years and also noted a decrease in both the number and percent of anglers that said they actually fished at Koocanusa for the fourth consecutive season. The number of days anglers fished at Koocanusa (7.0) was the highest on record and indicated we successfully targeted large fish anglers. We estimated that 1,250 bull trout were caught at Lake Koocanusa during the 2014 season which continued a positive trend since 2011. Anglers that used two poles 50 percent of the time or more accounted for a portion of the caught bull trout (89.0) similar to other years. The mean length of bull trout (20.6”; range 10”- 31”) caught during the 2014 season was similar to other seasons. There were no violations for Lake Koocanusa catch cards during the 2014 season. We used SPSS© General Linear Model (GLM) to evaluate if bull trout redd counts in the Wigwam River and Grave Creek differed through time by comparing periods with similar angling regulations. We included year as a covariate in each model to account for the significant temporal trend in redd counts. We found no evidence that redd counts were lower during periods that allowed legal harvest of bull trout under the USFWS experimental fisheries, however, it should be noted that the power of these tests was low.
    [Show full text]
  • Painted Turtle
    Painted Turtle The habitats occupied by this turtle are the same locations favoured for human settlement. Ministry of Environment, Lands and Parks mortality are added to natural losses, What do they look like? turtle populations usually decline. ainted Turtles (Chrysemys picta) are This combination of factors has placed often visible on warm days, swim- the Painted Turtle at risk in British ming in shallow water or basking on Why are Painted Turtles Columbia. P logs along the lakeshore. As the only at risk? native freshwater turtle in British he Painted Turtle faces many threats What is their status? Columbia, this species is unlikely to be within its limited range in southern he Painted Turtle is the most wide- confused with any other animal, except British Columbia. Furthermore, the ly distributed of the 49 turtle introduced species, such as the Red- T specific habitat it requires – wetlands species in North America.Although eared Slider Turtle, that have been and ponds for hiding and foraging, adja- T local populations have been thoughtlessly released by pet owners. cent to upland areas with soils suitable reduced by land development across its The characteristic feature of all tur- for nesting – is found in very few places range, it is abundant in many areas in tles is their protective bony shell, within that range. the United States. The British Columbia which encloses most of the body. The Alteration or destruction of its population is small because our shell has three parts: the domed cara- habitat is probably the main threat province is at the northern edge of its pace on the back; the flat plastron on faced by the Painted Turtle in British range and provides little habitat that is the underside; and the bridges, which Columbia.
    [Show full text]
  • Monitor and Protect Wigwam River Bull Trout for Koocanusa Reservoir
    Monitor and Protect Wigwam River Bull Trout for Koocanusa Reservoir Wigwam River McNeil Substrate Sampling Program Summary Report 1998 - 2002 DOE/BP-00005672-4 January 2003 Field37: This Document should be cited as follows: Tepper, Herb, ''Monitor and Protect Wigwam River Bull Trout for Koocanusa Reservoir'', Project No. 2000-00400, 21 electronic pages, (BPA Report DOE/BP-00005672-4) Bonneville Power Administration P.O. Box 3621 Portland, Oregon 97208 This report was funded by the Bonneville Power Administration (BPA), U.S. Department of Energy, as part of BPA's program to protect, mitigate, and enhance fish and wildlife affected by the development and operation of hydroelectric facilities on the Columbia River and its tributaries. The views in this report are the author's and do not necessarily represent the views of BPA. Wigwam River McNeil Substrate Sampling Program: 1998 – 2002 Summary Report Prepared by: Herb Tepper Fisheries Biologist Ministry of Water, Lands and Air Protection 205 Industrial Rd. G. Cranbrook, BC Prepared for and Funded by: Monitor and Protect Bull Trout for Koocanusa Reservoir BPA Project Number 2000-004-00, Bonneville Power Administration, Fish and Wildlife Program P.O. Box 3621, Portland, OR 97208 Acknowledgements Funding was provided by the Bonneville Power Administration (BPA) under the umbrella project "Monitor and Protect Bull Trout for Koocanusa Reservoir"; BPA project number 2000- 004-00. The author wishes to acknowledge all the individuals that have worked over the past five years to collect the substrate samples. These individuals included Tom Ostroskie, Neil Benson, Monty Benner, Jim Dunnigan and Scott Snelson from the Montana Fish, Wildlife and Parks.
    [Show full text]