[NatureNS] salmon pen site non-recovery

From: David & Alison Webster <dwebster@glinx.com>
To: NatureNS@chebucto.ns.ca
Date: Sat, 19 Jul 2014 10:11:21 -0300
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Dear All,                        July 19, 2014
    There is an article in today's Chronicle Herald about slow recovery of a 
Salmon pen site in Shelburne Harbour.

https://www.google.ca/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=0CB0QqQIwAA&url=http%3A%2F%2Fthechronicleherald.ca%2Fnovascotia%2F1223810-study-fish-pen-site-still-inert&ei=vWrKU42KHMXy8QG4rYBA&usg=AFQjCNGPOaYrap2oVUjKak28PGAT7gTGbg&bvm=bv.71198958,d.b2U

    I am wondering if the sulphide target they refer to (less than 1,5000 
micromolar) is actually Hydrogen Sulphide. I would think; that a bottom 
sludge of manure and food would quickly become anaerobic, unless moved 
around/disturbed by ocean currents, and would quickly become the typical 
dead zone in which fossils are best preserved.

    Has aeration been tested in recovering or active sites ?

Yt, Dave Webster, Kentville 

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