Notice of permit

Archived Content

Information identified as archived on the Web is for reference, research or recordkeeping purposes. It has not been altered or updated after the date of archiving. Web pages that are archived on the Web are not subject to the Government of Canada Web Standards. As per the Communications Policy of the Government of Canada, you can request alternate formats on the Contact Us page.

Regional or Local Number: 17-PCAA-00009

Notice is hereby given that pursuant to the provisions of section 73 of the Species at Risk Act permit no. 17-PCAA-00009 is issued.

Scientific research for the conservation of the species

The objective of the project is to conduct freshwater mussel surveys and monitoring in Central and Arctic Region. 1) Quantitative sampling – historical monitoring stations on the Thames and Maitland rivers will be revisited and sampling completed during the initial round of monitoring (2005) will be repeated; 2) Semi-quantitative sampling – sampling at Little Bear Creek and Walpole Island will be undertaken using habitat appropriate methods (wading, visual/tactile, searches, calm rakes, etc.); 3) Identification workshop – the workshop will take place in late June over a two-day period. The first day is a laboratory component working with preserved specimens. The second day is spent on-site at a location in the Sydenham River where attendees will develop and practise field identification skills under the guidance of experienced malacologists; 4) Genetic sampling – depending on which species are detected during sampling, it may be necessary to collect genetic samples for further analyses; 5) Depending on which species are found during sampling, it may be necessary to subsample to evaluate the reproductive state of individuals; and, 6) Tagging – when necessary some individuals may be tagged for future identification, using non-invasive tagging techniques.

Start Date: 2017-04-10   End Date: 2018-03-31

Issuing Authority: Department of Fisheries and Oceans

Authority Used:

  • Species at Risk Act

Location of Activity (province, territory or ocean):

  • Ontario

Affected Species:

a) Alternatives: All methods invoked during this study are supported by the Freshwater Mollusk Conservation Society ( as reproduced in “A guide to sampling freshwater mussel populations” (D.L. Strayer and D. R. Smith, American Fisheries Society, June 2003). These methods have been developed through this international organisation to be specifically applied to endangered and threatened populations. Sampling and handling procedures follow Mackie et al. 2008. No other methods for sexing live specimens exist. b) Measures to minimize impact: All identifications will be conducted using only external shell characteristics. Although identifications using internal characteristics can provide more rapid assessments in some cases, these methods are destructive resulting in the deaths of all individuals. No destructive sampling methods will be employed during this study. Furthermore, all individuals will be returned to the substrate in as close a position as possible to the location where they were collected. Habitat disturbance will be minimized by careful and deliberate movement throughout the site. All work will be conducted by qualified individuals. c) Effects on survival and recovery: It is not anticipated that any activities undertaken during this study will jeopardize the survival or recovery of these species. The proposed activities are fully supported by the Ontario Freshwater Mussel Recovery Team. The activities have been designed to use minimally intrusive techniques to gather essential information to promote and enhance the recovery of these species. Existing Recovery Potential Assessment’s for freshwater mussel species at risk have indicated that scientific research to further the protection and recovery of these species should be permitted. Specific to glochidia samples: Given the high numbers of glochidia released (10,000 – 250,000 per female) and the high mortality rates associated with this life-stage (<99.999%) it is anticipated that these samples will have no impact on the survival or recovery of these populations.

Contact Person(s)
Melanie Toyne
Regional Manager, Species at Risk Program
Freshwater Institute, Ontario and Prairie Region, Fisheries and Oceans Canada
501 University Crescent
Winnipeg, MB
R3T 2N6

Date modified: