jacques_pigeon 8 March 2014
Yeah, it was a summer to forget. All too often cold and rainy.
The weather was pretty bad except on SPANK days! (Thanks Wendy!).
Consequently, clarity was lower than in previous years but that was expected. Overall, our results are very good. Phosphorous count is still very low. All of our lake are in the oligotrophic* category.
The following bathymetric map was produced last year by the Richard Carignan group at the U of M. Dr Carignan is reputed to be the foremost lake specialist in Quebec.
I has asked him to assess the situation at Back Lake with regard to the eastern purple bladderwort issue. The group produced this map as part of its evaluation. The verdict: not a worrying situation. Just observe.
Double click on the map and enlarge it still more with another click and then look at the data. Interesting to note, for example, that the lake turnover is 1.8 times per year.
As you know, we tried unsuccessfully last summer to convince the Ministry of Transport to raise by 6 inches the Black lake culvert it was replacing.
This summer, we will thus monitor the situation very closely and watch the evolution of that carnivorous plant which is found in other lakes in the Laurentians (lac du Brochet in Mont-Tremblant National Park and Cromwell Lake at the Laurentian Biology Station) as, according to Dr Carignan, the plant is not particularly invasive.
Our lakes are in great shape because you care. Keep your septic system is in top shape. Avoid fertilizers and pesticides. Eliminate run off and make sure your shoreline protection band is compliant.
* Lake, pond or stream low in plant nutrients such as phosphates, nitrates, and organic matter, and consequently having few plants and a large amount of dissolved oxygen throughout.