Darcy L Gray, Rosaline Canessa, Rick Rollins, Peter Keller, and Phillip Dearden present "Incorporating Recreational Users into Marine Protected Area Planning: A Study of Recreational Boating in British Columbia, Canada" in order to assert that different people and their needs coincide with the time at which they boat as well as their boating locations. They present this in order to give reason to certain profit rises at certain times as well as certain activity occurring more often at certain locations. The "Recreation Opportunity Spectrum" helps to determine many of these factors. The information was presented very statistically and factually to a higher educated audience involved specifically on this subject.

Gray, Darcy L. Canessa, Rosaline. Rollins, Rick. Keller, CPeter. Dearden, Philip. "Incorporating Recreational Users into Marine Protected Area Planning: A Study of Recreational Boating in British Columbia, Canada" Environmental Management. 46.2. (2010) 167-180. Web.
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