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Notice of permit

Regional or Local Number: DFO-17-PCAA-00015

Notice is hereby given that pursuant to the provisions of section 73 of the Species at Risk Act permit no. DFO-17-PCAA-00015 is issued.

Scientific research for the conservation of the species

Conservation Halton's Long-term Environmental Monitoring Program (LEMP) has been monitoring the watersheds within Conservation Halton jurisdiction since 2005 in an effort to assess changes to long-term health of stream resources. As part of the aquatic monitoring program, fisheries sampling is conducted at 94 sites across the jurisdiction with sites rotating over a two-year period. Additionally, pre and post restoration monitoring is proposed in areas where projects have been completed to improve conditions specifically for Redside Dace and their habitats. This monitoring would occur in both historic and occupied habitats with the potential of catching the species at any time. Lastly, targeted monitoring of Redside Dace populations is proposed in areas of development within the Sixteen Mile Creek watershed. This monitoring will cover extensive reaches to help identify any potential Redside Dace within the development area and to update aging records.

Start Date: 2017-07-05   End Date: 2017-09-30

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: Conservation Halton uses a randomized sampling design to sample reaches throughout the watershed. While catches of Redside Dace may be incidental, sites are in locations that provide information on the overall health of the stream. While some LEMP stations fall within historical ranges of Redside Dace, few fall within occupied reaches, and catches of Redside Dace rarely occur. Specifically choosing stations outside of the species range would affect study design and monitoring results. In terms of restoration monitoring and specific Redside Dace monitoring, these stations could not be relocated as they are designed specifically to address issues related to Redside Dace occurrence and their habitats. b) Measures to minimize impact: Recognizing that the monitoring activities take place in occupied and historical habitats, all efforts to ensure that stress on the species is minimized are employed. In doing so, sites are sampled using a backpack electrofisher and the OSAP methodology. If a Redside Dace is encountered, electrofishing is ceased and all sampling is continued through the use of a seine net. Once captured, all fish are placed in flow-through tanks in the shade with the water temperature constantly monitored. Handling of the species will be minimized and all ID verification will be completed through the use of underwater cameras or through the use of a viewing window in order to minimize stress on the species. Sampling will only be completed during the recommended time period of July 1st to September 30th in order to minimize stress on spawning adults or disturbing nests. The largest impact related to sampling is the potential stress, injury, or death of individuals of a species during sampling. In order to mitigate this harm, sampling will be conducted by experienced professionals well-versed in sampling methodology and equipment use, and who are able to recognize when fish are stressed and in need of care. If this situation occurs, sampling activities will be halted and all fish will be placed in flow through tanks in the watercourse. SAR species will be placed in separate tanks, in a cool shaded area, with temperature and dissolved oxygen levels monitored. Once the species has recovered, it will be returned to its point of capture with no additional handling. Conservation Halton staff involved in the sampling have multiple years of experience in aquatic monitoring and have been involved in numerous inventories and monitoring programs specifically designed around collecting and assessing populations of Redside Dace. As a result, they have considerable experience in the safe handling of fishes, and specifically Redside Dace. c) Effects on survival and recovery: Mitigation measures to ensure that all fish are not harmed or stressed will be employed, which will help to ensure that the survival or recovery of the species is not jeopardized. The results of the monitoring will help determine overall health of the watersheds and provide guidance for future habitat projects in reaches occupied by Redside Dace.

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