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Hello all=2C=20
I can't speak to Halifax Harbour but for comparison...=20
The Sydney side of Sydney harbour was fitted with wastewater infrastructure=
within the last ten years. Since the diversion of wastewater the clusters =
of diving ducks and seals=2C have either left or are very obviously not as =
plentiful as they used to be. On the west side of the harbour where infrast=
ructure is yet to come (but on the way!) ducks still frequent the outfalls.=
=20
My two cents on why=2C are these:=20
Wastewater does cause eutrophication=2C fertilizing plants and algae (an on=
wards up the web). Food availability would definatley be different at outfa=
lls than where there are none.=20
Often times=2C here=2C the warmer water at outfalls causes openings in the =
ice. In some areas these are the only access points to the water.=20
:) Jen=20
From: soudekd@ns.sympatico.ca
To: naturens@chebucto.ns.ca
Subject: Re: [NatureNS] Sewer Strolls: Before and After Harbour Cleanup ?
Date: Sun=2C 4 Jan 2015 18:21:18 -0400
=0A=
=0A=
=0A=
=0A=
Joanne=2C=0A=
an excellent question. A broader one is what is it that =0A=
attracts birds to the outfalls? The warm temperature of the discharge? it s=
eems =0A=
that a lot of the herring and great black-backed gulls that used to frequen=
t the =0A=
Point Pleasant Park outfalls were just bathing. Lots of preening=2C wind =
=0A=
fluttering=2C etc. is the attraction the fish that are themselves attracted=
to =0A=
this warm water? The sewage itself?=0A=
Dusan Soudek=0A=
=0A=
=0A=
=0A=
=0A=
=0A=
From: Joanne Cook =0A=
Sent: Sunday=2C January 04=2C 2015 5:44 PM=0A=
To: naturens@chebucto.ns.ca =0A=
Subject: Re: [NatureNS] Sewer Strolls: Before and After Harbour =0A=
Cleanup ?=0A=
=0A=
=0A=
=0A=
Dusan=2C
=0A=
I was wondering the =0A=
same thing yesterday=2C and also wondering about the temperature of the cur=
rent =0A=
effluent=2C and what effects it has - if any - where it emerges.
=0A=
cheers=2C
=0A=
Joanne
=0A=
=0A=
=0A=
=0A=
=0A=
=0A=
____________________________________ =0A=
=0A=
Do not =0A=
meddle with the Forces of Nature=2C for you are small=2C insignificant=2C a=
nd =0A=
biodegradable. =0A=
=0A=
____________________________________=0A=
=0A=
On Sun=2C Jan 4=2C 2015 at 5:25 PM=2C Dusan Soudek <soudekd@ns.sympatico.ca=
> wrote:
=0A=
=0A=
=0A=
=0A=
=0A=
Just curious: Have there been any noticeable changes in the =0A=
numbers and species of waterfowl associated with Halifax Harbour sewer ou=
tlets =0A=
since the Harbour Solutions project was completed? Only a small percentag=
e of =0A=
the city=92s raw sewage gets dumped into the harbour these days=2C more s=
o after =0A=
periods of heavy rainfall when the sewage plants are overwhelmed by disch=
arge =0A=
from combined sewers...=0A=
Dusan Soudek=0A=
=0A=
=0A=
=0A=
=0A=
=0A=
=0A=
=0A=
=
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<body class=3D'hmmessage'><div dir=3D'ltr'>Hello all=2C <br><br>I can't spe=
ak to Halifax Harbour but for comparison... <br>The Sydney side of Sydney h=
arbour was fitted with wastewater infrastructure within the last ten years.=
Since the diversion of wastewater the clusters of diving ducks and seals=
=2C have either left or are very obviously not as plentiful as they used to=
be. On the west side of the harbour where infrastructure is yet to come (b=
ut on the way!) ducks still frequent the outfalls. <br><br>My two cents on =
why=2C are these: <br><br>Wastewater does cause eutrophication=2C fertilizi=
ng plants and algae (an onwards up the web). Food availability would defina=
tley be different at outfalls than where there are none. <br><br>Often time=
s=2C here=2C the warmer water at outfalls causes openings in the ice. In so=
me areas these are the only access points to the water. <br><br>:) Jen <br>=
<br><br><div><hr id=3D"stopSpelling">From: soudekd@ns.sympatico.ca<br>To: n=
aturens@chebucto.ns.ca<br>Subject: Re: [NatureNS] Sewer Strolls: Before and=
After Harbour Cleanup ?<br>Date: Sun=2C 4 Jan 2015 18:21:18 -0400<br><br>=
=0A=
=0A=
<div dir=3D"ltr">=0A=
<div style=3D"FONT-FAMILY:'Calibri'=3BCOLOR:#000000=3BFONT-SIZE:12pt=3B">=
=0A=
<div>Joanne=2C</div>=0A=
<div> =3B =3B an excellent question. A broader one is what is it th=
at =0A=
attracts birds to the outfalls? The warm temperature of the discharge? it s=
eems =0A=
that a lot of the herring and great black-backed gulls that used to frequen=
t the =0A=
Point Pleasant Park outfalls were just bathing. Lots of preening=2C wind =
=0A=
fluttering=2C etc. is the attraction the fish that are themselves attracted=
to =0A=
this warm water? The sewage itself?</div>=0A=
<div> =3B =3B Dusan Soudek</div>=0A=
<div> =3B</div>=0A=
<div style=3D"FONT-STYLE:normal=3BDISPLAY:inline=3BFONT-FAMILY:'Calibri'=3B=
COLOR:#000000=3BFONT-SIZE:small=3BFONT-WEIGHT:normal=3BTEXT-DECORATION:none=
=3B">=0A=
<div style=3D"FONT:10pt tahoma=3B">=0A=
<div> =3B</div>=0A=
<div style=3D"BACKGROUND:#f5f5f5=3B">=0A=
<div style=3D""><b>From:</b> <a title=3D"jocook.ns@gmail.com" href=3D"mailt=
o:jocook.ns@gmail.com">Joanne Cook</a> </div>=0A=
<div><b>Sent:</b> Sunday=2C January 04=2C 2015 5:44 PM</div>=0A=
<div><b>To:</b> <a title=3D"naturens@chebucto.ns.ca" href=3D"mailto:naturen=
s@chebucto.ns.ca">naturens@chebucto.ns.ca</a> </div>=0A=
<div><b>Subject:</b> Re: [NatureNS] Sewer Strolls: Before and After Harbour=
=0A=
Cleanup ?</div></div></div>=0A=
<div> =3B</div></div>=0A=
<div style=3D"FONT-STYLE:normal=3BDISPLAY:inline=3BFONT-FAMILY:'Calibri'=3B=
COLOR:#000000=3BFONT-SIZE:small=3BFONT-WEIGHT:normal=3BTEXT-DECORATION:none=
=3B">=0A=
<div dir=3D"ltr">=0A=
<div style=3D"FONT-FAMILY:georgia=2Cserif=3B" class=3D"ecxgmail_default">Du=
san=2C<br><br></div>=0A=
<div style=3D"FONT-FAMILY:georgia=2Cserif=3B" class=3D"ecxgmail_default">I =
was wondering the =0A=
same thing yesterday=2C and also wondering about the temperature of the cur=
rent =0A=
effluent=2C and what effects it has - if any - where it emerges.<br><br></d=
iv>=0A=
<div style=3D