In my corner of eastern British Columbia we've h
Greetings Ecologists,

In my corner of eastern British Columbia we've had a warmer than average winter 
and a later than average date of freeze of our local lake (surface freezes 
completely, usually thick enough to drive on). Yet no one talks of "climate 
change," rather, some people have been attributing the thin ice to decaying 
aquatic plants.  I assume this is because gases as a byproduct of decay bubble 
up, bringing +4 water to the surface-- but would decay be happening during the 
winter?  We have a pretty shallow lake (maximum depth = 7 metres; average = 3 
metres) and we haven't recorded thermal stratification in our lake in the 
spring, summer or fall.  I would like to educate the community about how much 
of an influence decaying plants might be having on creating thin sections of 
ice on the lake.  I would appreciate hearing your ideas on the impacts of 
decaying plants on ice melt and their possible relative contribution to thin 
ice.

Thanks so much!

~Kirsten Harma, MSc.
  Invermere, BC

(my apologies for the repost -- the first posting appeared with a very strange 
format on Ecolog)

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