Mark-recapture sampling for lake chubsucker (Erimyzon sucetta) and grass pickerel (Esox americanus vermiculatus) in L-Lake, Ontario, 2018 / Jason Barnucz and D. Andrew R. Drake.: Fs97-13/1347E-PDF

"In August and September 2018, seining surveys were conducted to determine the abundance, distribution, and habitat use of Lake Chubsucker (Erimyzon sucetta) and Grass Pickerel (Esox americanus vermiculatus) in L-Lake, which is located near Port Franks, Ontario. In August 2018, forty three sites were sampled, which were located approximately every 50 m around the perimeter of L-Lake. These locations were sampled a second time in September 2018. In both sample periods, sites were sampled using a 9 m x 1.8 m bag seine, which was fished within an enclosure constructed of a 23 m x 2.4 m straight seine. Captured Lake Chubsucker greater than 60 mm total length (TL) and Grass Pickerel greater than 100 mm TL received visual implant elastomer tags. A total of 39 Lake Chubsucker and 15 Grass Pickerel were captured across both sampling periods, with 34 Lake Chubsucker captured (21 tagged) and 12 Grass Pickerel captured (6 tagged) in sampling period one, and five Lake Chubsucker and three Grass Pickerel captured in period two. There were no recaptures of tagged fish in sampling period two. Captured non-target fish species were not recorded. At most sampling sites, water clarity was high and dense submerged vegetation cover was prominent. The dominant submerged macrophyte within sampling sites across both sampling period was Chara spp."--Abstract, page vi.

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