The two images noted below are samples of Didymo, an invasive species currently on Ril Lake. It was first noted in 2009, was quite extensive in 2010 and also sighted in 2011.
I strongly urge all Ril Laker's to become involved with monitoring invasive species and talking with neighbours to encourage awareness, education and efforts to control the spread of these species.
They are very harmful, spread rapidly and as noted in the image of the clam below, very damaging to the food chain of a lake.. All information can be found in the documents located in this section and additional information can be found in the links attached.
Thank you for your diligence.
Casey Cook, EMT, ET (Sept 2011)
Invasive Species and the Threat to Ril Lake
Casey Cook, June 2010 – Revised June 2011
Invasive species are a growing threat to ecosystems around the world. Alien invasive species are becoming more prevalant in many areas of Canada and in reference to our own “backyard” Ontario, we should be aware of their increase and threat to ecosystems and the biodiversity of these areas.
Invasive “alien” species are spread by humans by way of ballast water from ships, attachment to fishing lines, boats and trailers, mishandling of bait fish and can be hidden in crating and cargo from other countries; they have already caused significant human, economic and environmenal damage. The Federal Government has developed a plan to control the spread of invasive species and more information can be found at the following link; http://www.ec.gc.ca/eee-ias/default.asp?lang=En&n=1A81B051-1 There are several links to additional information such as “Where are Alien Invasive Species Found in Canada” at: http://www.ec.gc.ca/eee-ias/default.asp?lang=En&n=805A5D5C-1 Closer to home, the Ontario Federation of Anglers and Hunters (OFAH) have developed a strategy to identify and report any sightings in order to monitor the spread and threat of invasive species.
*Due to large image content, please click on the file download link below to view the rest of this report in its entirety.