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The Sydenham River
Tuesday, October 21, 2003
I am sure that most people in the area do not realize that our murky old Sydenham is one of the most diverse watersheds in terms of biodiversity in North America. In fact, it leads on many accounts. The Sydenham is the only river system found entirely within the so-called Carolinian zone. (Not to be confused with the Sydenham River up Owen Sound way). It is so biologically rich, that I could go on for pages describing what is found within. I'll only touch on certain areas briefly.The Sydenham contains the highest number of species of freshwater mussels found in Canada. Up to 34 have been found since studies have started, although the current number existing may be considerably less due to extinctions. For example, the Northern Rifleshell is quite abundant, and apparently 25% of the world's population is found within the Sydenham.
Fish are more abundant and diverse with regards to species than one may think. Up to 82 species of fish have been identified, many of which are quite rare. Even the provincially uncommon ones are quite abundant in the Sydenham. The Spotted Gar and Eastern Sand Darter are endangered species that are still found in good numbers.
As a side note, the Sydenham Field Naturalists are having a guest speak on Sydenham River fish at the November 5 meeting. (meet Olsen Technologies, Baseline Rd., 7:30 p.m.). This past summer, studies were undertaken at various points in the Sydenham watershed to get a handle on the diversity of fish. Apparently participants were quite overwhelmed by the number and diversity of fish species they encountered in the river.
Plants and trees are another area of fascination in the watershed. There are many rare species found within. Trees like Pawpaw, Kentucky Coffee, Blue Ash, and Shumard Oak have been located along the banks. No doubt more are to be found.
Of the several species of trillium, the lesser-known Drooping Trillium is found in good numbers. In fact it is found in only two places in Ontario, and the largest (over 500 plants) is found along the Sydenham.
The Eastern Spiny Softshell Turtle (now endangered) is most abundant in the east branch. Of course other turtle species are found within, as well as many other reptiles and amphibians.
There is a Recovery Strategy underway that looks at the wildlife and determines ways to assist in the survival of this wildlife. It is the first such project in Canada to deal with an entire aquatic ecosystem.
The Sydenham is a unique place to study nature. The possibilities are endless!
A wonderful website has been established that provides all kinds of information about the Sydenham River Valley. It touches on the culture, history, biology and geology of the region.
Some Wallaceburg information is found also. It can be found at HYPERLINK "http://www.sydenhamdiscovery.ca"; www.sydenhamdiscovery.ca
