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Canadian fishery closures provide a large-scale test of the impact of gillnet bycatch on seabird populations by Paul Regular, William Montevecchi, April.

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Presentation on theme: "Canadian fishery closures provide a large-scale test of the impact of gillnet bycatch on seabird populations by Paul Regular, William Montevecchi, April."— Presentation transcript:

1 Canadian fishery closures provide a large-scale test of the impact of gillnet bycatch on seabird populations by Paul Regular, William Montevecchi, April Hedd, Gregory Robertson, and Sabina Wilhelm Biology Letters Volume 9(4):20130088 August 23, 2013 ©2013 by The Royal Society

2 Seabird ecological reserves (red; a) and average annual fishing effort (net-days; number of gillnets × days set (gillnets typically 91 m long and soaked for 1 day)) from gillnet fisheries before (1987–1991; b) and after (1992–2009, closure zone shown in yel... Paul Regular et al. Biol. Lett. 2013;9:20130088 ©2013 by The Royal Society

3 Population trend estimates ± CIs of surface-feeding (red) and diving seabirds (blue) breeding at seabird ecological reserves (SERs) from 1975 to 2012 (n colonies (n pre-, n post-moratoria counts) indicated; a); pre- and post-moratoria population trends of H... Paul Regular et al. Biol. Lett. 2013;9:20130088 ©2013 by The Royal Society

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