Notice of permit
Regional or Local Number: DFO-17-PPAC-00002
Notice is hereby given that pursuant to the provisions of section 73 of the Species at Risk Act permit no. DFO-17-PPAC-00002 is issued.
Scientific research for the conservation of the species
Activities consist of the following: a) capturing Threespine Sticklebacks from Paxton and Priest lakes using minnow traps (in April or May for adults and in August or September for juveniles); b) transporting Priest Lake Threespine Sticklebacks to UBC for use in an experiment studying interactions with invasive Signal Crayfish to inform the impacts of hybridization; c) transporting captured Paxton Lake Threespine Sticklebacks to UBC to use in an experiment studying natural selection on sticklebacks of varying phenotype to inform knowledge of natural selection that maintains morphological differences between the species; and, in the event it is necessary, supplement existing laboratory broodstock for future experimentation to reduce the future need for collecting individuals from wild populations for research; d) fin-clipping and containing non-gravid adult Paxton Lake Threespine Stickleback females (50 benthics and 50 limnetics) in closed minnow traps (10 in each trap) overnight to determine the proportion that suffer mortality within the first 12-18 hours; and, e) release of any live individuals not required for planned removals (described in 188.8.131.52 [of the permit]) to the wild following recovery.
Start Date: 2017-04-01 End Date: 2017-10-31
Issuing Authority: Department of Fisheries and Oceans
- Species at Risk Act
Location of Activity (province, territory or ocean):
- British Columbia
- Paxton Lake Benthic Threespine Stickleback
- Paxton Lake Limnetic Threespine Stickleback
- Vananda Creek Benthic Threespine Stickleback
- Vananda Creek Limnetic Threespine Stickleback
a) Alternatives: The applicant considered sampling a different stickleback species pair, using different trapping methods, removing more sticklebacks from the wild (instead of maintaining broodstock), and trapping outside of the breeding season. Methods are consistent with the “Guidelines for the Collection and In Situ Scientific Study of Stickleback Species Pairs (Gasterosteus spp.)” (Recovery Team for Non-Game Freshwater Fish Species in BC [RTNFFSBC], 2008), and recently calculated population estimates developed in 2016. DFO requires following these guidelines, which have been developed and refined over several years of research. As many alternatives were investigating throughout the development of the document, following these procedures is considered the best solution. b) Measures to minimize impact: Methods are consistent with the “Guidelines for the Collection and In Situ Scientific Study of Stickleback Species Pairs (Gasterosteus spp.)” (RTNFFSBC, 2008) and recently calculated population estimates developed in 2016. Conditions of the permit limit the amount of individuals to be sampled by sex, age, and species, and set maximum mortality levels. They also specify measures to minimize the time males spend away from guarding nests and the handling of gravid females. By adhering to the permit conditions and following the aforementioned procedures, the permit holder is applying measures to minimize impact to the species. c) Effects on survival and recovery: Activities are not anticipated to jeopardize survival or recovery of Paxton Lake or Vananda Creek Threespine Sticklebacks (Benthic or Limnetic). Activities are anticipated to better inform the impacts of hybridization, knowledge of natural selection that maintains morphological differences between the species, incidental mortality rates due to handling, and reduce the future need to collect individuals from wild populations for research.
Species at Risk Regional Manager
Fisheries and Oceans Canada
200 – 401 Burrard Street
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