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awhile as some of the dead fish are eight Hi George Regardless of cause.. you should call this in to the Environmental line 1-800-565-1633. That would giveFisheries and Environment a heads-up. Andrew ________________________________________ From: naturens-owner@chebucto.ns.ca [naturens-owner@chebucto.ns.ca] on behalf of Nicholas Hill [fernhillns@gmail.com] Sent: May-01-15 10:39 AM To: naturens@chebucto.ns.ca Subject: Re: [NatureNS] fish kill Port Williams skating pond Isn't it an odd time of year for a fish kill resulting from lack of O2 given it's so cold (O2 more soluble in cold water and decomposition rates low at low temp), unless there is a source of soluble organics getting into the pond or the something else. Nick On Fri, May 1, 2015 at 10:09 AM, Hebda, Andrew J <Andrew.Hebda@novascotia.ca<mailto:Andrew.Hebda@novascotia.ca>> wrote: __Thanks George. If a poison had been applied, you would probably see other mortalities, including frogs, and potentially fish-eating birds. Are the fish all "gold" in colour? In pods where Osprey forage, there is a selection agains gold, resulting in most of the fish resiorting to nartural (gree/brown colouration with little bright pigment. If you have regular Osprey presence, it would suggest a relatively recent introduction. A p.s. if they are still fresh, can you grab a sample and freeze some for us. From: naturens-owner@chebucto.ns.ca<mailto:naturens-owner@chebucto.ns.ca> [naturens-owner@chebucto.ns.ca<mailto:naturens-owner@chebucto.ns.ca>] on behalf of George E. Forsyth [g4syth@nspes.ca<mailto:g4syth@nspes.ca>] Sent: May-01-15 9:38 AM To: naturens@chebucto.ns.ca<mailto:naturens@chebucto.ns.ca> Subject: Re: [NatureNS] fish kill Port Williams skating pond Hi Andrew, The pond is very shallow, if you really wanted to, you could walk across and keep your shoulders dry. The water enters through an underground pipe from a water body in a wet hollow above the skating pond. The water then flows out through a vertically placed pipe at the bottom end of the pond. The brook runs along about thirty feet beside the pond. See Google maps: 45.093621, -64.412400 I had noticed goldfish last summer and they must have been here for awhile as some of the dead fish are eight inches long. Other species were not noted, but I didn't really study them and there are literally hundreds. I have lived here for almost thirty years and have never seen this many dead fish, and hadn't noticed goldfish here. To be honest I wasn't too concerned that goldfish had been killed, as the pond doesn't seem to host peepers and toads any more. They probably have eaten most of the eggs and tadpoles. But the kingfishers and herons have been coming to the pond regularly the past few years. If they have been intentionally poisoned would other species be killed as well? I'll try to get some pictures. Yours truly, George Forsyth Quoting "Hebda, Andrew J" <Andrew.Hebda@novascotia.ca<mailto:Andrew.Hebda@novascotia.ca>>: > Hi George > > If there was a lot of organic matter in the bottom of the pond, > could have caused a stripping of the oxygen as decomposition > progressed. Anyother species? > > As well, any idea how long the goldfish have been in that pond... > they are not native, so would have had to have been a > release/introduction. > > Andrew > > A Hebda > NSM Collections (Zoology) > ________________________________________ > From: naturens-owner@chebucto.ns.ca<mailto:naturens-owner@chebucto.ns.ca> [naturens-owner@chebucto.ns.ca<mailto:naturens-owner@chebucto.ns.ca>] > on behalf of George E. Forsyth [g4syth@nspes.ca<mailto:g4syth@nspes.ca>] > Sent: April-30-15 10:18 PM > To: naturens > Subject: [NatureNS] fish kill Port Williams skating pond > > Hi, > > The other evening I was out for a walk and noticed hundreds of gold > fish floating on the edge of the Port Williams, Kings Co, skating pond > on Belcher St. I don't know if this is a result of accidental or > intentional poisoning, or were they killed by natural causes as a > result of the longer than usual ice and snow cover? There was a good > selection of small and large fish, I only noticed gold fish. It was > quite impressive how many there were! > > > George Forsyth
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