_cover_small.jpg "Issue Cover Image")
The Crayfishes of Manitoulin Island
Hamr P, Hamr J and Hoel M 
Published Online: 12/31/2014
Abstract
The distribution of crayfish species found on Manitoulin Island in Lake Huron, Ontario, Canada was documented. Major water bodies on the island were surveyed in 2007, and again in 2012 and 2013. The island is geographically unique, as it is considered a refugium, similar geologically to regions located in more southern Ontario. Overall, fifty one sites were sampled on the main island, as well as smaller adjacent islands and the mainland. Orconectes propinquus, Orconectes virlis and Cambarus bartonii are the three native species found on the island. Cambarus bartonii was recorded at one site only, O. virilis occurred at twenty three localities, while O. propinquus was recorded at thirty two locations. The latter two species were in sympatry at fifteen of the locations. The introduced Orconectes rusticus occurred at eight localities, of which one was shared with O. propinquus. Orconectes immunis, Cambarus robustus and Fallicambarus fodiens, which occur in other parts of Ontario, were not found on the island. The significance of the overall distribution is discussed in terms of past surveys, as well as the present and future impacts of the introduced O. rusticus in model scenarios of existing and potential spread in southern Ontario and Quebec.
Supplemental Documents
Cited By
0 Citations:
How to Cite
Hamr P, Hamr J and Hoel M. (2014). The Crayfishes of Manitoulin Island. Freshwater Crayfish 20(1):87-91. doi: 10.5869/fc.2014.v20-1.87
Author Information
Premek Hamr,* Science, Upper Canada College, , , , . E-mail:
Josef Hamr, School of Renewable Energy and Environmental Studies, Cambrian College, 1400 Barrydowne Road, Sudbury, , Ontario,, CanadaP3A 3V8. E-mail: josef.hamr@cambriancollege.ca
Mark Hoel, Geography, Upper Canada College, 200 Lonsdale rd., Toronto,, Ontario, CanadaM4V 1W6. E-mail: mhoel@ucc.on.ca
Corresponding Author indicated by an *.
Publication History
Manuscript Submitted: 4/23/2014
Manuscript Accepted: 7/3/2014
Published Online: 12/31/2014
Published in Print: 12/31/2014
Funding Information
No specific funding statement is available for this article.