BURBOT IN THE KOOTENAI RIVER, IDAHO: A STORY OF SUCCESS

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1 BURBOT IN THE KOOTENAI RIVER, IDAHO: A STORY OF SUCCESS T.J. Ross, Ryan Hardy, and Andy Dux, Idaho Department of Fish and Game Shawn Young, Nate Jensen, and Sue Ireland, Kootenai Tribe of Idaho

2 OVERVIEW Objectives and agency roles Conceptual framework Monitoring and evaluation basics Population status update Fishery Justification, status, structure, and monitoring

3 OVERVIEW Objectives and agency roles Conceptual framework Monitoring and evaluation basics Population status update Fishery Justification, status, structure, and monitoring

4 OVERVIEW Objectives and agency roles Conceptual framework Monitoring and evaluation basics Population status update Fishery Justification, status, structure, and monitoring

5 OVERVIEW Objectives and agency roles Conceptual framework Monitoring and evaluation basics Population status update Fishery Justification, status, structure, and monitoring

6 OVERVIEW Objectives and agency roles Conceptual framework Monitoring and evaluation basics Population status update Fishery Justification, status, structure, and monitoring

7 OBJECTIVES AND AGENCY ROLES Overarching objective Restore a naturally reproducing and harvestable Burbot population in the Kootenai River IDFG roles Population monitoring and evaluation Spawning characterization Movement and habitat use Recruitment limitation testing and monitoring Success of various stocking strategies Fishery opening and regulations

8 OBJECTIVES AND AGENCY ROLES Overarching objective Restore a naturally reproducing and harvestable Burbot population in the Kootenai River IDFG roles Population monitoring and evaluation Spawning characterization Movement and habitat use Recruitment limitation testing and monitoring Success of various stocking strategies Fishery opening and regulations

9 OBJECTIVES AND AGENCY ROLES Overarching objective Restore a naturally reproducing and harvestable Burbot population in the Kootenai River IDFG roles Population monitoring and evaluation Spawning characterization Movement and habitat use Recruitment limitation testing and monitoring Success of various stocking strategies Fishery opening and regulations

10 OBJECTIVES AND AGENCY ROLES Overarching objective Restore a naturally reproducing and harvestable Burbot population in the Kootenai River IDFG roles Population monitoring and evaluation Spawning characterization Movement and habitat use Recruitment limitation testing and monitoring Success of various stocking strategies Fishery opening and regulations

11 OBJECTIVES AND AGENCY ROLES Overarching objective Restore a naturally reproducing and harvestable Burbot population in the Kootenai River IDFG roles Population monitoring and evaluation Spawning characterization Movement and habitat use Recruitment limitation testing and monitoring Success of various stocking strategies Fishery opening and regulations

12 OBJECTIVES AND AGENCY ROLES Overarching objective Restore a naturally reproducing and harvestable Burbot population in the Kootenai River IDFG roles Population monitoring and evaluation Spawning characterization Movement and habitat use Recruitment limitation testing and monitoring Success of various stocking strategies Fishery opening and regulations

13 OBJECTIVES AND AGENCY ROLES Overarching objective Restore a naturally reproducing and harvestable Burbot population in the Kootenai River IDFG roles Population monitoring and evaluation Spawning characterization Movement and habitat use Recruitment limitation testing and monitoring Success of various stocking strategies Fishery opening and regulations

14 CONCEPTUAL FRAMEWORK RESTORE A NATURALLY REPRODUCING AND HARVESTABLE BURBOT POPULATION IN THE KOOTENAI BASIN

15 CONCEPTUAL FRAMEWORK RESTORE A NATURALLY REPRODUCING AND HARVESTABLE BURBOT POPULATION IN THE KOOTENAI BASIN CONSERVATION AQUACULTURE

16 CONCEPTUAL FRAMEWORK RESTORE A NATURALLY REPRODUCING AND HARVESTABLE BURBOT POPULATION IN THE KOOTENAI BASIN CONSERVATION AQUACULTURE HATCHERY BURBOT ARE THEY SURVIVING? ARE THEY SPAWNING? WHICH STOCKING STRATEGIES ARE BEST? POPULATION STATUS?

17 CONCEPTUAL FRAMEWORK RESTORE A NATURALLY REPRODUCING AND HARVESTABLE BURBOT POPULATION IN THE KOOTENAI BASIN CONSERVATION AQUACULTURE HATCHERY BURBOT ARE THEY SURVIVING? ARE THEY SPAWNING? WHICH STOCKING STRATEGIES ARE BEST? POPULATION STATUS? NATURAL REPRODUCTION ARE THEY REPRODUCING? WHAT IS HOLDING THEM BACK? CAN WE ADDRESS THE ISSUE? APPROACHING RESTORATION?

18 CONCEPTUAL FRAMEWORK RESTORE A NATURALLY REPRODUCING AND HARVESTABLE BURBOT POPULATION IN THE KOOTENAI BASIN CONSERVATION AQUACULTURE HATCHERY BURBOT ARE THEY SURVIVING? ARE THEY SPAWNING? WHICH STOCKING STRATEGIES ARE BEST? POPULATION STATUS? NATURAL REPRODUCTION ARE THEY REPRODUCING? WHAT IS HOLDING THEM BACK? CAN WE ADDRESS THE ISSUE? APPROACHING RESTORATION?

19 BC ID MT Baited hoopnetting Dec 1-March 31, annually Hoop nets: 60cm x 2m 38 sites, 82 total hoop nets Consistent since 1990s

20 MONITORING AND EVALUATION BASICS

21 MONITORING AND EVALUATION BASICS

22 POPULATION STATUS UPDATES: WHAT WOULD WE LIKE TO SEE? Increasing catch rates Consistent spawn timing Comparable growth rates Diverse age and size structure Reasonable survival rates Early life stage survival and growth Natural reproduction Restoration targets for adults met

23 POPULATION STATUS UPDATES: WHAT WOULD WE LIKE TO SEE? Increasing catch rates Consistent spawn timing Comparable growth rates Diverse age and size structure Reasonable survival rates Natural reproduction Restoration targets for adults met

24 POPULATION STATUS UPDATES: WHAT WOULD WE LIKE TO SEE? Increasing catch rates Consistent spawn timing Comparable growth rates Diverse age and size structure Reasonable survival rates Natural reproduction Restoration targets for adults met

25 POPULATION STATUS UPDATES: WHAT WOULD WE LIKE TO SEE? Increasing catch rates Consistent spawn timing Comparable growth rates Diverse age and size structure Reasonable survival rates Natural reproduction Restoration targets for adults met

26 POPULATION STATUS UPDATES: WHAT WOULD WE LIKE TO SEE? Increasing catch rates Consistent spawn timing Comparable growth rates Diverse age and size structure Reasonable survival rates Natural reproduction Restoration targets for adults met

27 POPULATION STATUS UPDATES: WHAT WOULD WE LIKE TO SEE? Increasing catch rates Consistent spawn timing Comparable growth rates Diverse age and size structure Reasonable survival rates Natural reproduction Restoration targets for adults met

28 POPULATION STATUS UPDATES: WHAT WOULD WE LIKE TO SEE? Increasing catch rates Consistent spawn timing Comparable growth rates Diverse age and size structure Reasonable survival rates Natural reproduction Restoration targets for adults met

29 POPULATION STATUS UPDATES: WHAT WOULD WE LIKE TO SEE? Increasing catch rates Consistent spawn timing Comparable growth rates Diverse age and size structure Reasonable survival rates Natural reproduction Restoration targets for adults met

30 CPUE (# Burbot/net-d) Effort (days) POPULATION STATUS UPDATES: INCREASING CATCH RATES Year

31 CPUE (# Burbot/net-d) Effort (days) POPULATION STATUS UPDATES: INCREASING CATCH RATES Year

32 POPULATION STATUS UPDATES: WHAT WOULD WE LIKE TO SEE? Increasing catch rates Consistent spawn timing Comparable growth rates Diverse age and size structure Reasonable survival rates Natural reproduction Restoration targets for adults met

33 POPULATION STATUS UPDATES: WHAT WOULD WE LIKE TO SEE? Increasing catch rates Consistent spawn timing Comparable growth rates Diverse age and size structure Reasonable survival rates Natural reproduction Restoration targets for adults met

34 CPUE (fish/net-d) POPULATION STATUS UPDATES: CONSISTENT SPAWN TIMING /5 12/12 12/19 12/26 12/26 1/2 1/2 1/9 1/9 1/16 1/16 1/23 1/231/30 1/302/6 2/6 2/13 2/13 2/20 2/20 2/27 2/27 3/6 3/13 3/6 3/20 3/13 3/27 3/20 3/27 Date Date

35 Number of unique daily detections POPULATION STATUS UPDATES: CONSISTENT SPAWN TIMING /19/ /19/ /19/2015 1/19/2016 2/19/2016 3/19/2016 4/19/2016 5/19/2016 6/19/2016 Date

36 Number of unique daily detections POPULATION STATUS UPDATES: CONSISTENT SPAWN TIMING Date

37 POPULATION STATUS UPDATES: WHAT WOULD WE LIKE TO SEE? Increasing catch rates Consistent spawn timing Comparable growth rates Diverse age and size structure Reasonable survival rates Natural reproduction Restoration targets for adults met

38 POPULATION STATUS UPDATES: WHAT WOULD WE LIKE TO SEE? Increasing catch rates Consistent spawn timing Comparable growth rates Diverse age and size structure Reasonable survival rates Natural reproduction Restoration targets for adults met

39 Total length (mm) POPULATION STATUS UPDATES: COMPARABLE GROWTH RATES Kootenai River ( ) Kootenai River ( ; Partridge 1982) Kootenai River ( ; Partridge 1982) Age

40 Total length (mm) POPULATION STATUS UPDATES: COMPARABLE GROWTH RATES Kootenai River ( ) Kootenai River ( ; Partridge 1982) Kootenai River ( ; Partridge 1982) Age

41 POPULATION STATUS UPDATES: WHAT WOULD WE LIKE TO SEE? Increasing catch rates Consistent spawn timing Comparable growth rates Diverse age and size structure Reasonable survival rates Natural reproduction Restoration targets for adults met

42 POPULATION STATUS UPDATES: WHAT WOULD WE LIKE TO SEE? Increasing catch rates Consistent spawn timing Comparable growth rates Diverse age and size structure Reasonable survival rates Natural reproduction Restoration targets for adults met

43 Relative frequency (%) POPULATION STATUS UPDATES: DIVERSE AGE AND SIZE STRUCTURE SEASON Unknown Total length (mm)

44 Relative frequency (%) POPULATION STATUS UPDATES: DIVERSE AGE AND SIZE STRUCTURE SEASON Unknown Total length (mm)

45 Relative frequency (%) POPULATION STATUS UPDATES: DIVERSE AGE AND SIZE STRUCTURE SEASON Unknown Total length (mm)

46 Relative Frequency (%) POPULATION STATUS UPDATES: DIVERSE AGE AND SIZE STRUCTURE SEASON Unknown Total length (mm)

47 Relative Frequency (%) POPULATION STATUS UPDATES: DIVERSE AGE AND SIZE STRUCTURE SEASON Unknown Total Length (mm)

48 POPULATION STATUS UPDATES: WHAT WOULD WE LIKE TO SEE? Increasing catch rates Consistent spawn timing Comparable growth rates Diverse age and size structure Reasonable survival rates Natural reproduction Restoration targets for adults met

49 POPULATION STATUS UPDATES: WHAT WOULD WE LIKE TO SEE? Increasing catch rates Consistent spawn timing Comparable growth rates Diverse age and size structure Reasonable survival rates Natural reproduction Restoration targets for adults met

50 POPULATION STATUS UPDATES: REASONABLE SURVIVAL RATES Survival Age

51 POPULATION STATUS UPDATES: WHAT WOULD WE LIKE TO SEE? Increasing catch rates Consistent spawn timing Comparable growth rates Diverse age and size structure Reasonable survival rates Natural reproduction Restoration targets for adults met

52 POPULATION STATUS UPDATES: WHAT WOULD WE LIKE TO SEE? Increasing catch rates Consistent spawn timing Comparable growth rates Diverse age and size structure Reasonable survival rates Natural reproduction Restoration targets for adults met

53 POPULATION STATUS UPDATES: NATURAL REPRODUCTION Documented natural reproduction for the first time in winter season 15 wild Burbot captured from December 1, 2017-March 31, Remnant Kootenai River genetic group 2 Lake Koocanusa genetic group 5 Hatchery x Hatchery genetic group I unknown

54 POPULATION STATUS UPDATES: NATURAL REPRODUCTION Documented natural reproduction for the first time in winter season 15 wild Burbot captured from December 1, 2017-March 31, Remnant Kootenai River genetic group 2 Lake Koocanusa genetic group 5 Hatchery x Hatchery genetic group I unknown

55 POPULATION STATUS UPDATES: NATURAL REPRODUCTION Documented natural reproduction for the first time in winter season 15 wild Burbot captured from December 1, 2017-March 31, Remnant Kootenai River genetic group 2 Lake Koocanusa genetic group 5 Hatchery x Hatchery genetic group I unknown

56 POPULATION STATUS UPDATES: NATURAL REPRODUCTION Documented natural reproduction for the first time in winter season 15 wild Burbot captured from December 1, 2017-March 31, Remnant Kootenai River genetic group 2 Lake Koocanusa genetic group 5 Hatchery x Hatchery genetic group I unknown

57 POPULATION STATUS UPDATES: NATURAL REPRODUCTION Documented natural reproduction for the first time in winter season 15 wild Burbot captured from December 1, 2017-March 31, Remnant Kootenai River genetic group 2 Lake Koocanusa genetic group 5 Hatchery x Hatchery genetic group I unknown

58 POPULATION STATUS UPDATES: WHAT WOULD WE LIKE TO SEE? Increasing catch rates Consistent spawn timing Comparable growth rates Diverse age and size structure Reasonable survival rates Natural reproduction Restoration targets for adults met

59 POPULATION STATUS UPDATES: WHAT WOULD WE LIKE TO SEE? Increasing catch rates Consistent spawn timing Comparable growth rates Diverse age and size structure Reasonable survival rates Natural reproduction Restoration targets for adults met

60 POPULATION STATUS UPDATES: REASONABLE SURVIVAL RATES Survival Age

61 Juvenile release group

62 Juvenile release group Age-1 survivors 0.09

63 Juvenile release group Age-1 survivors Age-2 survivors

64 Juvenile release group Age-1 survivors Age-2 survivors Age-3 survivors

65 Juvenile release group Age-1 survivors Age-2 survivors Age-4 survivors Age-3 survivors 0.93

66 17, 500 adult Burbot Year

67 17, 500 adult Burbot Year

68 17, 500 adult Burbot Year

69 17, 500 adult Burbot Year

70 17, 500 adult Burbot Year

71 17, 500 adult Burbot Year

72 17, 500 adult Burbot Year

73 17, 500 adult Burbot Year

74 POPULATION STATUS UPDATES: WHAT WOULD WE LIKE TO SEE? Increasing catch rates Consistent spawn timing Comparable growth rates Diverse age and size structure Reasonable survival rates Natural reproduction Restoration targets for adults met

75 POPULATION STATUS UPDATES: WHAT WOULD WE LIKE TO SEE? Increasing catch rates Consistent spawn timing Comparable growth rates Diverse age and size structure Reasonable survival rates Natural reproduction Restoration targets for adults met

76 17, 500 adult Burbot Year

77 FISHING MORTALITY = 0% 17, 500 adult Burbot Year

78 FISHING MORTALITY = 5% 17, 500 adult Burbot Year

79 FISHING MORTALITY = 10% 17, 500 adult Burbot Year

80 FISHING MORTALITY = 15% 17, 500 adult Burbot Year

81 No density dependence F=0.20 FISHING MORTALITY = 20% 17, 500 adult Burbot Year

82 No density dependence F=0.25 FISHING MORTALITY = 25% 17, 500 adult Burbot Year

83 FISHING MORTALITY = 15% 17, 500 adult Burbot Year

84 No density dependence FISHING MORTALITY = 15% F= Year

85 FISHING MORTALITY = 5% 17, 500 adult Burbot Year

86 FISHERY: STRUCTURE Proposed rules: Daily bag limit of six fish, any size Season will be open all year on the Kootenai River and tributaries All of the same rules will apply to Bonner Lake (~4,000 released since 2014) If approved, rules will take effect on January 1, 2019 and run through 2021 Rule change mechanisms in place, if necessary Emergency regulation change Mid-cycle regulation change

87 FISHERY: STRUCTURE Proposed rules: Daily bag limit of six fish, any size Season will be open all year on the Kootenai River and tributaries All of the same rules will apply to Bonner Lake (~4,000 released since 2014) If approved, rules will take effect on January 1, 2019 and run through 2021 Rule change mechanisms in place, if necessary Emergency regulation change Mid-cycle regulation change

88 FISHERY: STRUCTURE Proposed rules: Daily bag limit of six fish, any size Season will be open all year on the Kootenai River and tributaries All of the same rules will apply to Bonner Lake (~4,000 released since 2014) If approved, rules will take effect on January 1, 2019 and run through 2021 Rule change mechanisms in place, if necessary Emergency regulation change Mid-cycle regulation change

89 FISHERY:STATUS March 2018 Two public scoping meetings were held

90 FISHERY:STATUS March 2018 February-March 2018 Two public scoping meetings were held Scoping comments could be submitted online

91 FISHERY:STATUS March 2018 February-March 2018 Early summer 2018 Two public scoping meetings were held Scoping comments could be submitted online Fishing rules drafted

92 FISHERY:STATUS March 2018 February-March 2018 Early summer 2018 July 2018 Two public scoping meetings were held Scoping comments could be submitted online Fishing rules drafted IDFG Commission viewed and approved release of draft rules for public comment

93 FISHERY:STATUS March 2018 February-March 2018 Early summer 2018 July 2018 Two public scoping meetings were held Scoping comments could be submitted online Fishing rules drafted IDFG Commission viewed and approved release of draft rules for public comment September 7-October 7, 2018 Online survey to get input on proposed rules 77% support 20% neutral 3% opposed

94 FISHERY:STATUS March 2018 February-March 2018 Early summer 2018 July 2018 Two public scoping meetings were held Scoping comments could be submitted online Fishing rules drafted IDFG Commission viewed and approved release of draft rules for public comment September 19, 2018 Open house at Region 1 office. September 7-October 7, 2018 Online survey to get input on proposed rules 77% support 20% neutral 3% opposed

95 FISHERY:STATUS March 2018 February-March 2018 Early summer 2018 July 2018 Two public scoping meetings were held Scoping comments could be submitted online Fishing rules drafted IDFG Commission viewed and approved release of draft rules for public comment Currently Comments being reviewed. Rules will be revised, if necessary. September 19, 2018 Open house at Region 1 office. September 7-October 7, 2018 Online survey to get input on proposed rules 77% support 20% neutral 3% opposed

96 FISHERY:STATUS March 2018 February-March 2018 Early summer 2018 July 2018 Two public scoping meetings were held Scoping comments could be submitted online Fishing rules drafted IDFG Commission viewed and approved release of draft rules for public comment November 2018 Currently September 19, 2018 September 7-October 7, 2018 IDFG Commission to view and approve/modify rules. Comments being reviewed. Rules will be revised, if necessary. Open house at Region 1 office. Online survey to get input on proposed rules 77% support 20% neutral 3% opposed

97 FISHERY:STATUS March 2018 February-March 2018 Early summer 2018 July 2018 Two public scoping meetings were held Scoping comments could be submitted online Fishing rules drafted Final rules will be printed and take effect January 1, Rules will be in effect for three years. IDFG Commission viewed and approved release of draft rules for public comment November 2018 Currently September 19, 2018 September 7-October 7, 2018 IDFG Commission to view and approve/modify rules. Comments being reviewed. Rules will be revised, if necessary. Open house at Region 1 office. Online survey to get input on proposed rules 77% support 20% neutral 3% opposed

98 FISHERY:STATUS A resource lost to the community since 1992 will once again be available for recreational and consumptive use!

99 FISHERY: MONITORING Extensive creel survey to monitor: Harvest numbers Angler effort Catch rates Composition of catch Law enforcement support

100 FISHERY: MONITORING Extensive creel survey to monitor: Harvest numbers Angler effort Catch rates Composition of catch Law enforcement support

101 SUMMARY All indicators suggest the Burbot population is growing Extensive modeling efforts indicate the fishery is sustainable Clear stakeholder support for the fishery January 1, 2019 isn t too far away!

102 SUMMARY All indicators suggest the Burbot population is growing Extensive modeling efforts indicate the fishery is sustainable Clear stakeholder support for the fishery January 1, 2019 isn t too far away!

103 SUMMARY All indicators suggest the Burbot population is growing Extensive modeling efforts indicate the fishery is sustainable Clear stakeholder support for the fishery January 1, 2019 isn t too far away!

104 SUMMARY All indicators suggest the Burbot population is growing Extensive modeling efforts indicate the fishery is sustainable Clear stakeholder support for the fishery January 1, 2019 isn t too far away!

105 ACKNOWLEDGEMENTS ARI Joe Evavold Ken Cain Neil Ashton Hatchery staff KTOI Sue Ireland Shawn Young Nate Jensen Hatchery staff IDFG Diane Wakkinen Ryan Hardy IDFG field crews BC Sarah Stephenson Val Evans MFWP Jim Dunnigan Ryan Sylvester

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