Invasive Mussel Defence Program

The B.C. Invasive Mussel Defence Program’s goal is to prevent the introduction of zebra and quagga mussels (ZQM) into B.C. The program’s prevention efforts are focused on inspecting boats, monitoring lakes, educating the public and coordinating actions with neighbouring jurisdictions. 

The Invasive Mussel Defence Program (IMDP) was created in 2015 and has three main components:

  • A watercraft inspection program to detect and respond to high-risk watercraft potentially transporting invasive mussels into B.C. from infested lakes or rivers
  • Lake monitoring to confirm the continued absence of invasive mussels in B.C. waters
  • Outreach and education to educate people and change behaviour by promoting the message of "clean, drain, dry" to the boating community, in collaboration with partners

Provincial legislation gives the Province authority to take action on ZQM. The Controlled Alien Species (CAS) Regulation under the Wildlife Act is the principle legislation that defines, lists, and affords provisions to regulate invasive mussels in B.C. 

Under the CAS Regulation, prohibitions apply to any mussel listed in Schedule 4 (Zebra, Quagga, and Conrad’s False Mussel). Specifically, it is illegal for a person to: 

  • possess, breed, ship, or transport prohibited mussels
  • release prohibited mussels into B.C. waters
  • allow a prohibited mussel to be released or escape into B.C. waters

Inspectors are trained in the watercraft inspection program and have been designated as auxiliary conservation officers under the Environmental Management Act. This designation provides powers to stop, inspect, search, question, and give decontamination orders. See the Zebra and Quagga Mussel Early Detection and Rapid Response (ZQM EDRR) Plan (PDF) for more information on the CAS Regulation and ZQM.

2015-2023 Watercraft Inspection Seasons

The provincial Invasive Mussel Defence Program was launched in 2015. The Ministry of Water, Land and Resource Stewardship (WLRS) delivers the IMDP in partnership with the Ministry of Environment and Climate Change Strategy’s Conservation Officer Service (COS). The IMDP would like to recognize the support provided by program’s founding partners: the Columbia Basin Trust, the Columbia Power Corporation, BC Hydro and Fortis BC that makes this program possible. The annual program workplan incorporates ongoing feedback from partners, the public, and jurisdictions across western Canada and the United States to ensure funding allocations maximize program effectiveness. Results and lessons learned from previous inspections seasons are available in the Program reports posted below.

B.C. Invasive Mussel Defence Program Operations from 2015-2023

 

2015

2016

2017

2018

2019

2020

2021

2022 2023

Inspection Stations

Roving

8

10

12

12

9 (2 roving)

7 (2 roving)

6 (2 roving) 6 (2 roving)

Number of Inspectors

12

32

65

64

64

37

45

32 43

Hours of Operation

5 days/week, 7 hrs/day

7 days/week, 10 hrs/day

9 stations dawn-dusk, 7 days/week;
1 station 24hrs

5 stations dawn-dusk;
6 stations 10hrs/day;
1 station 24hrs

4 stations dawn-dusk;
7 stations 10hrs/day;
1 station 24 hrs

9 stations dawn to dusk, 10hrs/day

Dawn to dusk; 10 hrs/day; 1 station 24 hrs

10hrs/day; dawn to dusk 10hrs/day; dawn to dusk

Inspection Season

June to October

April to Sept/Oct

April/June to mid-November

March/May to late October

March/May to late October

May 15 to October 25

April/May to Oct

April/May to Oct March to December
Watercraft Inspection Findings for the 2015-2023 Seasons of the B.C. Invasive Mussel Defence Program

 

2015

2016

2017

2018

2019

2020

2021

2022 2023

Total Watercraft Inspected

4,350

24,500

35,500

40,700

52,000

29,900

33,300

20,100 20,900

Number of People Interacted With

~10,000

~50,000

72,300

78,600

95,000

55,900

61,600

36,400 39,300

High Risk Inspections

70

685

2,071

1,652

1,290

158

244

122 155

Mussel Fouled Boats 

15

17

25

25

22

16

17

13 14

Resources

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

Program Funders

Program Funders

Aquatic Invasive Species K9 Unit

In 2017, the program started the Aquatic Invasive Species K9 unit. The first of B.C.’s multipurpose detection dogs was Kilo. The primary handler of Kilo is Sergeant Dan Bartol within the Conservation Officer Service (COS). Kilo is trained to detect invasive mussels, firearms and bear parts, and helps in evidence recovery cases within the Conservation Officer Service. 

In the fall of 2018, a second multipurpose detection dog, called Major, joined the K9 unit. Major is a German shepherd whose primary handler is Sergeant Denny Chretien. These dogs are valuable tools for detecting invasive mussels on watercraft travelling through and into B.C.

Photographs of the K9 unit, Kilo and Major
Kilo in action Major in action