Go Back   Winnipesaukee Forum > Winnipesaukee Forums > General Discussion
Home Forums Gallery Blogs YouTube Channel Classifieds Links Calendar Register FAQDonate Members List Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Display Modes
Old 08-13-2021, 05:56 PM   #1
Lakegeezer
Senior Member
 
Join Date: Feb 2003
Location: Moultonboro, NH
Posts: 1,603
Blog Entries: 1
Thanks: 322
Thanked 559 Times in 254 Posts
Default Cyanobacteria?

When I went to swim today, I noticed a lot of flakes in the water column and wonder if it is cyanobacteria. I wasn't willing to risk swimming in it and hope it disappears. Can anyone confirm that from the picture? I'd normally notify DES but found it after hours.

The Lake Winnipesaukee Association put out a warning recently for cyanobacteria in Mirror Lake and also seen at Pine Island, Bear Island and
Wolfeboro Bay. Perhaps it is more wide spread.

White dots in the photo are more green in person and are distributed throughout the visible water column.
Attached Images
 
__________________
-lg

Last edited by Lakegeezer; 08-13-2021 at 08:50 PM. Reason: edit
Lakegeezer is offline   Reply With Quote
The Following User Says Thank You to Lakegeezer For This Useful Post:
MBNeckguy (08-18-2021)
Old 08-14-2021, 07:24 AM   #2
Jeanzb1
Senior Member
 
Join Date: May 2009
Location: Gilford
Posts: 497
Thanks: 516
Thanked 156 Times in 84 Posts
Default

This happens every year around this time. Yes, it is a form of Cyanobacteria. And, yes, it is called Gloeotrichia. Google it.


Sent from my iPad using Winnipesaukee Forum mobile app
Jeanzb1 is online now   Reply With Quote
The Following User Says Thank You to Jeanzb1 For This Useful Post:
Lakegeezer (08-14-2021)
Old 08-14-2021, 10:30 AM   #3
mswlogo
Senior Member
 
Join Date: Jun 2014
Posts: 501
Thanks: 160
Thanked 191 Times in 120 Posts
Default

So is it unsafe to swim in?

I'm surprised it's showing up on schedule with such a cool and wet July

I don't recall seeing it on NewFound lake.
mswlogo is offline   Reply With Quote
Old 08-14-2021, 03:00 PM   #4
FlyingScot
Senior Member
 
Join Date: Jun 2016
Location: Tuftonboro and Sudbury, MA
Posts: 1,588
Thanks: 836
Thanked 688 Times in 418 Posts
Default

Quote:
Originally Posted by mswlogo View Post
So is it unsafe to swim in?

I'm surprised it's showing up on schedule with such a cool and wet July

I don't recall seeing it on NewFound lake.
Yes--it is unsafe. Cyanobacteria is a neurotoxin, dangerous for humans, dogs, and others. To say it's showing up on schedule suggests this is somehow natural or normal--it is only normal in the sense that as we let too much phosphorous into the lake, the lake is very likely to repay us with cyanobacteria and milfoil.

High amounts of rain, high lake water levels, shoreline development, boat wakes, roads without modern water handing, and high air temperatures all contribute here. We can't control the rain or air, but we can address many of these other issues.

As mishman noted, Lake Winnipesaukee Association is working hard to protect the lake from these things. Worth a look at their website for those interested https://www.winnipesaukee.org/
FlyingScot is offline   Reply With Quote
Old 08-14-2021, 03:26 PM   #5
TheProfessor
Senior Member
 
Join Date: Nov 2010
Posts: 774
Thanks: 16
Thanked 226 Times in 138 Posts
Default

What about Lake Kanasatka ?
TheProfessor is offline   Reply With Quote
Sponsored Links
Old 08-14-2021, 04:19 PM   #6
Jeanzb1
Senior Member
 
Join Date: May 2009
Location: Gilford
Posts: 497
Thanks: 516
Thanked 156 Times in 84 Posts
Default

From what I have read, Gloeotrichia is in every lake in New England. Would I swim in the blue green algae? Hell no! But I wouldn’t let this stuff keep me out of the lake.


Sent from my iPad using Winnipesaukee Forum mobile app
Jeanzb1 is online now   Reply With Quote
Old 08-14-2021, 04:45 PM   #7
FlyingScot
Senior Member
 
Join Date: Jun 2016
Location: Tuftonboro and Sudbury, MA
Posts: 1,588
Thanks: 836
Thanked 688 Times in 418 Posts
Default

Quote:
Originally Posted by Jeanzb1 View Post
From what I have read, Gloeotrichia is in every lake in New England. Would I swim in the blue green algae? Hell no! But I wouldn’t let this stuff keep me out of the lake.


Sent from my iPad using Winnipesaukee Forum mobile app
Agreed. It is increases in phosphorous and temperature that cause it to bloom into quantities that are visible/harmful.
FlyingScot is offline   Reply With Quote
Old 08-14-2021, 04:53 PM   #8
FlyingScot
Senior Member
 
Join Date: Jun 2016
Location: Tuftonboro and Sudbury, MA
Posts: 1,588
Thanks: 836
Thanked 688 Times in 418 Posts
Default

Quote:
Originally Posted by TheProfessor View Post
What about Lake Kanasatka ?
Here's an email I got as a member of Lake Winnipesaukee Association. Cyanobacteria is elevated in Kanasatka, but is not yet dangerous. Keep an eye out there and in Blackey Cove


ATTENTION BLACKEY COVE RESIDENTS

In follow up to the NHDES red cyanobacteria advisory for Lake Kanasatka, LWA staff, NHDES and Moultonborough Conservation Commission members collected samples at the outlet of the Rt.25 dam and the inlet to Blackey Cove this morning. DES analyzed the samples and reports the following results.

Outlet at the Dam (Site A): 3,250 cells/mL
Inlet to Blackey Cove (Site B): 4,000 cells/mL

The same species of Cyanobacteria (Dolichospermum) was observed, but the concentrations are well below the state threshold for a warning or advisory. Advisories are issued when cyanobacterial cell concentrations exceed 70,000 cells/mL.

Blackey Cove residents please be on the lookout and report any suspected blooms.



If you suspect a waterbody is experiencing a cyanobacterial bloom: Call or text the hotline at (603) 848-8094 or email HAB@des.nh.gov and follow these steps to minimize immediate risks:
Don’t wade or swim or drink the water.​
Keep pets or livestock out;
Wash your hands if you’ve made contact.
Please advise anyone, especially pets and children, to avoid consuming or coming into contact with the water where any conditions are present.

Blooms can appear and disappear quickly and move around the lake with wind, currents, weather and boat traffic. The photos below are of the Kansatka bloom, and should be used to help everyone identify what they are looking for.

To learn more about cyanobacteria and cyanotoxins: CLICK HERE

Please feel free to call (603) 581-6632 or e-mail mail@winnipesaukee.org with any additional questions.

Thank You,

Bree Rossiter
Conservation Program Manager

Lake Winnipesaukee Association
P.O. Box 1624, Meredith, NH, 03253
(603) 581-6632
FlyingScot is offline   Reply With Quote
Old 08-16-2021, 05:53 PM   #9
Lakegeezer
Senior Member
 
Join Date: Feb 2003
Location: Moultonboro, NH
Posts: 1,603
Blog Entries: 1
Thanks: 322
Thanked 559 Times in 254 Posts
Default Gloeotrichia

I sent a sample to DES and got this reply. "Yes, these are the Gloeotrichia. Cyanobacteria Sightings Reported - Gloeotrichia | NH Department of Environmental Services This is not a high concentration yet. Watch out for layers that create brownish surface scums."
__________________
-lg
Lakegeezer is offline   Reply With Quote
Old 08-18-2021, 05:34 PM   #10
Winni Luvr
Member
 
Winni Luvr's Avatar
 
Join Date: Jun 2007
Location: Pennsylvania
Posts: 29
Blog Entries: 1
Thanks: 9
Thanked 10 Times in 2 Posts
Default question

Does a certain website update daily and let you know what part of the Lake is effected by this? I plan on going fishing and swimming in Moultonborough on our upcoming vacation and I would be really sad if we couldn't. I also would be sad if any of us got sick because we went in the water.
Winni Luvr is offline   Reply With Quote
Old 08-18-2021, 06:51 PM   #11
FlyingScot
Senior Member
 
Join Date: Jun 2016
Location: Tuftonboro and Sudbury, MA
Posts: 1,588
Thanks: 836
Thanked 688 Times in 418 Posts
Default

Quote:
Originally Posted by Winni Luvr View Post
Does a certain website update daily and let you know what part of the Lake is effected by this? I plan on going fishing and swimming in Moultonborough on our upcoming vacation and I would be really sad if we couldn't. I also would be sad if any of us got sick because we went in the water.
Unfortunately, no. But both DES and Lake Winnipesaukee Association are monitoring as much as they can. You might want to join LWA, or at least join their Facebook group. This year's conditions are ideal for cyanobacteria--high water levels cause extra erosion and phosphorous to enter the lake, then high heat promotes growth.

The good news is that cyanobacteria blooms are readily visible by the time they are dangerous--if you see big clouds of green, don't go in or over it. If the water looks normal, you are not in danger. You can Google for images too
FlyingScot is offline   Reply With Quote
The Following User Says Thank You to FlyingScot For This Useful Post:
Winni Luvr (08-19-2021)
Old 08-18-2021, 08:56 PM   #12
mowtorman
Senior Member
 
Join Date: Oct 2009
Posts: 174
Thanks: 63
Thanked 107 Times in 66 Posts
Default New invasive species

My posting from 8/24/20

"Cyanobacteria which is toxic and associated with ALS (see Mascoma Lake DHMC) is in Kanasatka this summer. Once introduced it thrives on Nitrogen and Phosphorus. Kanasatka is 9' above Winnipesaukee so where do you think it is headed? If you have good flow, low population and low animal populations you are obviously better off. Point is the lake is taking a pounding and without the opportunity to flush over the winter it wouldn't be much better than Lilly Pond."

So Cyanobacteria is established now in Winnipesaukee in 2021. I would bet the next invasive species in Winnipesaukee will be Zebra Mussels.

NH has avoided Zebra Mussels so far but won't be able to much longer as they are already in Vermont, Maine and Massachusetts. There is no way to combat them as they cluster on your dock posts and outdrives as the boat sits at the dock. They have not been the environmental disaster they were predicted to be. Many people vacationing bring their boats to both Lake Winnipesaukee and Lake Champlain. Many bass tournaments are held on both lakes. Many boats are launched off trailers very early before lake hosts arrive on duty to check for invasive species. It's like Lake Seymour in the Northeast Kingdom of Vermont trying to hold off against Eurasian Milfoil.

It is not a matter of if it is a matter of when. The degradation of the lake will proceed as fast as we allow it to be loaded with Nitrogen and Phosphorus either from humans i.e. fertilizer or animals i.e. poop.

If you want to see a worst case scenario, take a look at the waterfront cottages in St. Albans Bay in Vermont. There is no way anyone would swim there, probably not even let your dog swim it's all full of reeds and algae and it stinks to high heaven on a 95 degree summer day. These cottages would have been highly sought after in their day and valuable, not so much now. Lake Champlain is a much different situation in that sewage overflows and it is also a superfund site from the coal gasification power plants years ago.

Without water quality you have nothing.

The picture below is St. Albans bay in the middle of a bg algae bloom.
Attached Images
  

Last edited by mowtorman; 08-19-2021 at 12:59 PM.
mowtorman is offline   Reply With Quote
The Following 2 Users Say Thank You to mowtorman For This Useful Post:
FlyingScot (08-19-2021), welch100 (08-22-2021)
Old 08-18-2021, 09:25 PM   #13
NHskier
Senior Member
 
Join Date: Aug 2006
Posts: 257
Thanks: 28
Thanked 25 Times in 24 Posts
Default

NH DES maintains a website with notices on lake water quality including cyanobacteria warnings: https://www4.des.state.nh.us/WaterShed_BeachMaps/
__________________
NHskier
NHskier is offline   Reply With Quote
The Following User Says Thank You to NHskier For This Useful Post:
Winni Luvr (08-19-2021)
Old 08-19-2021, 06:23 PM   #14
FlyingScot
Senior Member
 
Join Date: Jun 2016
Location: Tuftonboro and Sudbury, MA
Posts: 1,588
Thanks: 836
Thanked 688 Times in 418 Posts
Default

Quote:
Originally Posted by Winni Luvr View Post
Does a certain website update daily and let you know what part of the Lake is effected by this? I plan on going fishing and swimming in Moultonborough on our upcoming vacation and I would be really sad if we couldn't. I also would be sad if any of us got sick because we went in the water.
Here's a new Lake Winnipesaukee Association cyanobacteria page with weekly reporting

https://www.winnipesaukee.org/news-e...oom-watch-map/
FlyingScot is offline   Reply With Quote
The Following User Says Thank You to FlyingScot For This Useful Post:
Loub52 (08-19-2021)
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump


All times are GMT -4. The time now is 10:58 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, vBulletin Solutions Inc.

This page was generated in 1.07187 seconds