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<div style=3D --_000_990B3EE94E8A61448C998FEBAEAFC0240AFF9310HCXDSPM2calmcoc_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Hi Jen, Sewage ponds and their outlets are quite simply the most nutrient rich area= s that can be found and are filled with invertebrates. Whether they are loc= ated in Nova Scotia, Ontario or Florida they are some of the best places to= find birds associated with water and marshes. That's as long as there is s= ome component of natural habitat included in them and they are not cement l= ined, sterile pools as is usually the case in Quebec. One of my favorite me= mories is Jim Wolford showing my field biology class the abundance of inver= tebrates in a sewage pond sweep. Can you say Daphnia and Rat-tailed Maggot?= Sure you can. Thanks Jim! All the best, Lance Lance Laviolette Glen Robertson, Ontario From: naturens-owner@chebucto.ns.ca [mailto:naturens-owner@chebucto.ns.ca] = On Behalf Of jen cooper Sent: Tuesday, January 06, 2015 11:41 AM To: naturens@chebucto.ns.ca Subject: EXTERNAL: RE: [NatureNS] Sewer Strolls: Before and After Harbour C= leanup ? Hello all, I can't speak to Halifax Harbour but for comparison... 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, have either left or are very obviously not as pl= entiful as they used to be. On the west side of the harbour where infrastru= cture is yet to come (but on the way!) ducks still frequent the outfalls. My two cents on why, are these: Wastewater does cause eutrophication, fertilizing plants and algae (an onwa= rds up the web). Food availability would definatley be different at outfall= s than where there are none. Often times, here, the warmer water at outfalls causes openings in the ice.= In some areas these are the only access points to the water. :) Jen ________________________________ From: soudekd@ns.sympatico.ca<mailto:soudekd@ns.sympatico.ca> To: naturens@chebucto.ns.ca<mailto:naturens@chebucto.ns.ca> Subject: Re: [NatureNS] Sewer Strolls: Before and After Harbour Cleanup ? Date: Sun, 4 Jan 2015 18:21:18 -0400 Joanne, an excellent question. A broader one is what is it that attracts birds t= o the outfalls? The warm temperature of the discharge? it seems that a lot = of the herring and great black-backed gulls that used to frequent the Point= Pleasant Park outfalls were just bathing. Lots of preening, wind flutterin= g, etc. is the attraction the fish that are themselves attracted to this wa= rm water? The sewage itself? Dusan Soudek From: Joanne Cook<mailto:jocook.ns@gmail.com> Sent: Sunday, January 04, 2015 5:44 PM To: naturens@chebucto.ns.ca<mailto:naturens@chebucto.ns.ca> Subject: Re: [NatureNS] Sewer Strolls: Before and After Harbour Cleanup ? Dusan, I was wondering the same thing yesterday, and also wondering about the temp= erature of the current effluent, and what effects it has - if any - where i= t emerges. cheers, Joanne ____________________________________ Do not meddle with the Forces of Nature, for you are small, insignificant, = and biodegradable. ____________________________________ On Sun, Jan 4, 2015 at 5:25 PM, Dusan Soudek <soudekd@ns.sympatico.ca<mailt= o:soudekd@ns.sympatico.ca>> wrote: Just curious: Have there been any noticeable changes in the numbers and = species of waterfowl associated with Halifax Harbour sewer outlets since th= e Harbour Solutions project was completed? Only a small percentage of the c= ity's raw sewage gets dumped into the harbour these days, more so after per= iods of heavy rainfall when the sewage plants are overwhelmed by discharge = from combined sewers... Dusan Soudek --_000_990B3EE94E8A61448C998FEBAEAFC0240AFF9310HCXDSPM2calmcoc_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable <html xmlns:v=3D"urn:schemas-microsoft-com:vml" xmlns:o=3D"urn:schemas-micr= osoft-com:office:office" xmlns:w=3D"urn:schemas-microsoft-com:office:word" = xmlns:m=3D"http://schemas.microsoft.com/office/2004/12/omml" xmlns=3D"http:= //www.w3.org/TR/REC-html40"> <head> <meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Dus-ascii"= > <meta name=3D"Generator" content=3D"Microsoft Word 14 (filtered medium)"> <!--[if !mso]><style>v\:* {behavior:url(#default#VML);} o\:* {behavior:url(#default#VML);} w\:* {behavior:url(#default#VML);} .shape {behavior:url(#default#VML);} </style><![endif]--><style><!-- /* Font Definitions */ @font-face {font-family:Batang; panose-1:2 3 6 0 0 1 1 1 1 1;} @font-face {font-family:Batang; panose-1:2 3 6 0 0 1 1 1 1 1;} @font-face {font-family:Calibri; panose-1:2 15 5 2 2 2 4 3 2 4;} @font-face {font-family:Tahoma; panose-1:2 11 6 4 3 5 4 4 2 4;} @font-face {font-family:"\@Batang"; panose-1:2 3 6 0 0 1 1 1 1 1;} @font-face {font-family:Georgia; panose-1:2 4 5 2 5 4 5 2 3 3;} /* Style Definitions */ p.MsoNormal, li.MsoNormal, div.MsoNormal {margin:0in; margin-bottom:.0001pt; font-size:12.0pt; font-family:"Times New Roman","serif";} a:link, span.MsoHyperlink {mso-style-priority:99; color:blue; text-decoration:underline;} a:visited, span.MsoHyperlinkFollowed {mso-style-priority:99; color:purple; text-decoration:underline;} p {mso-style-priority:99; mso-margin-top-alt:auto; margin-right:0in; mso-margin-bottom-alt:auto; margin-left:0in; font-size:12.0pt; font-family:"Times New Roman","serif";} p.MsoAcetate, li.MsoAcetate, div.MsoAcetate {mso-style-priority:99; mso-style-link:"Balloon Text Char"; margin:0in; margin-bottom:.0001pt; font-size:8.0pt; font-family:"Tahoma","sans-serif";} span.ecxhoenzb {mso-style-name:ecxhoenzb;} span.BalloonTextChar {mso-style-name:"Balloon Text Char"; mso-style-priority:99; mso-style-link:"Balloon Text"; font-family:"Tahoma","sans-serif";} span.EmailStyle21 {mso-style-type:personal-reply; font-family:"Calibri","sans-serif"; color:#1F497D;} .MsoChpDefault {mso-style-type:export-only; font-size:10.0pt;} @page WordSection1 {size:8.5in 11.0in; margin:1.0in 1.0in 1.0in 1.0in;} div.WordSection1 {page:WordSection1;} --></style><!--[if gte mso 9]><xml> <o:shapedefaults v:ext=3D"edit" spidmax=3D"1026" /> </xml><![endif]--><!--[if gte mso 9]><xml> <o:shapelayout v:ext=3D"edit"> <o:idmap v:ext=3D"edit" data=3D"1" /> </o:shapelayout></xml><![endif]--> </head> <body lang=3D"EN-CA" link=3D"blue" vlink=3D"purple"> <div class=3D"WordSection1"> <p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:"Ca= libri","sans-serif";color:#1F497D">Hi Jen,<o:p></o:p></span>= </p> <p class=3D"MsoNormal"&