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Notice of permit

Regional or Local Number: DFO-17-PCAA-00020

Notice is hereby given that pursuant to the provisions of section 73 of the Species at Risk Act permit no. DFO-17-PCAA-00020 is issued.

Scientific research for the conservation of the species

The purpose of the research is to conduct surveys to determine the presence/absence of Mapleleaf at new and historic locations in Manitoba (>10 years old since last observation).

Start Date: 2017-07-01   End Date: 2017-10-31

Issuing Authority: Department of Fisheries and Oceans

Authority Used:

  • Species at Risk Act

Location of Activity (province, territory or ocean):

  • Manitoba

Affected Species:

a) Alternatives or modifications to the protocols have been considered. These include: Modification of the protocol to immediately process mussels upon capture, thereby reducing handling time, was considered but rejected. Processing all the mussels after searching is over allows surveyors to compare individuals, which will aid in, and standardize identification. Immediate processing of mussels would significantly increase overall time and number of staff required to conduct the survey. Modification to the protocol to not allow each surveyor’s search area to overlap so as to reduce potential disturbance and damage to mussels from trampling was considered, but rejected. Risk of harm due to trampling was considered low because river mussels generally have thicker shells and would likely be resistant to damage. Also, conditions for visual searching would generally be less than optimal (i.e. muddy waters, half buried mussels with algae growth on the shell) such that an area that was already searched could likely yield more mussels. b) Impact to mussels will be minimized by making every effort to reduce time that mussels are handled and held captive. Other measures to minimize impacts include a reduction of harm from heat stress by storing captured mussels in flowing water in a shaded area. Reduction of harm from handling will be made by properly orienting captured mussels in the substrate when replacing. Marking collection bags will allow surveyors to return individuals to the location from which they were originally found. Reduction of harm to habitat will be made by conducting primarily visual surveys. There will be no excavation or digging at the site. c) Effects on survival and recovery: The intent is for the live capture and return of Mapleleaf after measurement. Potential impacts in the study design and methodologies were carefully considered, and the application of mitigation measures will minimize any project impacts on individuals, their residences and habitat. No mortality of individuals, nor effects to residences or critical habitat are anticipated. The data collected from the proposed activities has a direct linkage to strategies and actions recommended for this species. The data collected as a result of the proposed activity will benefit the survival and recovery of the species.

Contact Person(s)
Mr. Raymond Ratynski
Regional Manager, Species at Risk Program
Freshwater Institute, Fisheries and Oceans Canada
501 University Crescent
Winnipeg, MB
R3T 2N6
Tel: 204-983-4438
Fax: 204-983-5192