1. Biology Department, Acadia University, 15 University Drive, Wolfville, NS B4P 2R6, Canada.
2. Département des Sciences, Université Sainte-Anne, 1695 Route 1, Pointe-de-l'église, NS B0W 1M0, Canada.
3. Nova Scotia Department of Natural Resources and Renewables, 136 Exhibition Street, Kentville, NS B4N 4E5, Canada.
4. Environment Climate Change Canada, 17 Waterfowl Lane, Sackville, NB E4L 4N1, Canada.