[NatureNS] lots of empty FW Mussel shells- why?

Date: Fri, 16 May 2014 14:10:33 -0300 (ADT)
From: Dusan Soudek <soudekd@ns.sympatico.ca>
To: naturens@chebucto.ns.ca
References: <7C9600E8-E450-4CE6-8D23-0FC48D217D19@gmail.com>
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   Nancy,
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   &#160;&#160; any living specimens around?&#160;They would likely be in somewhat deeper water, not easily visible from land...
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   Dusan Soudek
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   &#160;
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   <br/>&#62; On May 16, 2014 at 1:35 PM nancy dowd &#60;nancypdowd@gmail.com&#62; wrote:
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   <br/>&#62; Water levels have dropped just enough on L Torment to show about 6&#34; of beach in places now but the shore has been completely submerged since last October. The number of mussel shells seen in these pictures is unusual:
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   <br/>&#62; At the end of the path they are visible as far as you can see out into the water:
   <br/>&#62; https://www.flickr.com/photos/92981528@N08/14196083311/
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   <br/>&#62; And it is this way the whole way along the shore. Another view 40&#39; along the submerged beach:
   <br/>&#62; https://www.flickr.com/photos/92981528@N08/14012727849/
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   <br/>&#62; This side of the lake has the prevailing onshore winds and waves and the shells are starting to collect in the exposed pockets:
   <br/>&#62; https://www.flickr.com/photos/92981528@N08/14199406975/
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   <br/>&#62; Why so many empty mussel shells? Would the winter somehow have been hard on them- ice or cold or oxygen levels? Doesn&#39;t look like predation to me- too many shells. This is the first year I have ever seen anything like this.
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   <br/>&#62; Any ideas?
   <br/>&#62; 
   <br/>&#62; Nancy
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   <br/>&#62; 
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