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Notice of permit
Regional or Local Number: DFO-17-PCAA-00017
Notice is hereby given that pursuant to the provisions of section 73 of the Species at Risk Act permit no. DFO-17-PCAA-00017 is issued.
Activity affecting the species is incidental to the carrying out of the activity
The Canadian Wildlife Service is considering management options to control invasive Phragmites australis at Long Point National Wildlife Area on Lake Erie. As part of the management planning exercise, it would be prudent to consider fish community information in ponds and coastal wetland areas that are close to Phragmites stands that may undergo future management. One fyke net will be placed per wetland/pond for a single night (up to 24 h) during sampling. The maximum fishing effort at any site would be 12 nets for 24 hours. Fish collected in the nets will be identified, measured, and released.
Start Date: 2017-06-12 End Date: 2017-08-04
Issuing Authority: Department of Fisheries and Oceans
- Species at Risk Act
Location of Activity (province, territory or ocean):
a) Alternatives: Sites to be surveyed are based on proximity to Phragmites stands and the potential of future management occurring in those areas. Alternatives were not considered as sites were required to fit these criteria. Initial discussions on ways to assess wetland fishes included fyke nets, seining, minnow traps, bottle traps, electrofishing, and setting gill nets. Of these, a fish catch-and-release method using fyke nets offered the greatest prospects of sampling fishes in the greatest diversity of wetland habitats while minimizing environmental damage or effects on the fish population. Setting, sampling, and removing fyke nets causes short-term disturbance to local habitat. However, it is estimated that fyke-netting is the most effective non-destructive method of sampling fishes. Minimal transient effects of movement through the sample locations, and no effects on population as a whole are anticipated. Time of survey occurs outside of the spring and fall spawning periods as defined by the guide for in-water work set by the Ontario Ministry of Natural Resources and Forestry. b) Measures to minimize impact: Mortality of individual fish is minimized by the short duration of sampling (overnight) and the live release of most specimens. Three investigators will work together to count and measure specimens in order to increase processing speed and minimize the holding period. The single-visit nature of this non-destructive sampling approach will not jeopardize species survival or recovery because the number of species at risk (SAR) specimens likely to be captured is small, and specimens from an even smaller proportion are likely to be retained for confirmation of species identity. Personnel scheduled to complete this project have been involved with the broader Great Lakes Coastal Wetland Monitoring effort which uses the same equipment and methodology. In addition, staff have completed the ROM fish identification course. c) Effects on survival and recovery: The possibility of SAR mortality from fyke netting is relatively low and not expected to jeopardize the survival of captured species or population recovery. Furthermore, the increased knowledge stemming from SAR occurrences would help to refine critical habitat, as required, thus contributing to potential species at risk recovery.
Mr. Raymond Ratynski
Regional Manager, Species at Risk Program
Freshwater Institute, Fisheries and Oceans Canada
501 University Crescent
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