Mississippi Valley Field Naturalists
Submitted July 2, 2006
by Pauline Donaldson, MVFN Public Relations Chair
Local naturalists invite water-enthusiasts to water-temperature survey weekend to mark “Doors Open to Ontario Nature’s” 75th Anniversary celebration
The Mississippi Valley Field Naturalists invite water-enthusiasts to take water temperatures in the Mississippi watershed over the August holiday weekend, August 5-7. MVFN is organizing a volunteer-driven water-temperature survey of the entire Mississippi River Watershed. Why the interest in taking temperatures in lakes and rivers, and why on the August holiday weekend? Water temperature is an important characteristic of aquatic habitat. Maximum annual surface temperatures, which typically occur here around the first week in August, are a key factor determining the species of fish and other aquatic life present.
The water-temperature survey weekend is MVFN’s contribution to “Doors Open to Ontario Nature”, a year long project celebrating the 75th Anniversary of Ontario Nature. It was 75 years ago that a University of Toronto Professor and zoology director at the Royal Ontario Museum proposed that natural history clubs join together to speak with one voice for nature conservation in Ontario. To mark the occasion, 75 projects are being hosted by the 140 plus conservation groups comprising the Ontario Nature Network.
The goal of the project is very simple, says Tracy Moore, Eastern Regional Director for Ontario Nature. “It will be a fun opportunity that connects people with nature, but it also serves to gather some very important data and raise awareness of climate change and its potential effects on our beautiful Eastern Ontario landscape”. MVFN’s theme this year on “Change in Our Natural World” started with a seminar on national and global climate change issues. Subsequent talks focused on its potential impact in various areas. MVFN members initiated local monitoring activities which, like the water-temperature project, focus on impacts of climate change in our own backyards. It is known, for example, that water-temperatures in some fresh water lakes in Ontario are on the rise, and, as MVFN heard from John Casselman (OMNR) in March, small changes in fresh water temperatures can lead to rather dramatic shifts in fish populations.
The water temperature project will involve individuals as well as members of naturalist, fish and game clubs, and cottage and lake associations with a direct interest in the watershed, in monitoring waters of the Mississippi Watershed. The results, coming from all across the watershed, should complement other monitoring work already being done and contribute to a better understanding of the watershed as we prepare for climate change. Participants can contact their local lake association for suggestions on where to sample, or choose their favourite stretch of river or lake and sample temperatures with friends and family. Reporting forms for temperature readings, and guidelines for participating, including tips for home-made depth sampling devices (such as the one shown in the photo) and choosing the right thermometer, will be available from participating lake associations.
The information can also be picked up at the MVFN booth at The Art of Being Green Festival in Lanark Village July 15-16, or viewed at MVFN’s website at www.mvfn.ca. For questions, the public can contact project coordinator Cliff Bennett at 613-256-5013 or by e-mail: .
All data collected will be provided to Mississippi Valley Conservation and MVFN will prepare an overview of the study findings for the public.