Dr. Watmough explains implications of calcium losses on lake ecosystems.
As mentioned last month in this cottageinmuskoka blog entry and this news story from the Huntsville Forester (Cottage Country Now), the decline of calcium in our lakes can affect our lakes recovery from acid rain as well as zooplankton in our lakes, which are are very sensitive to declining calcium levels.
This is interesting information of value not only for those who own a cottage in Muskoka, but all of us who live in or visit Muskoka. In the presentation Dr. Shaun Watmough of Trent University helps us understand:
Why should we care about calcium in the environment?
How are calcium levels in lakes, vegetation and soils changing?
What is causing these changes?
What will be the impact of timber harvesting on lake calcium levels?
What are the critical uncertainties?
Declining calcium slows the recovery of acidic lakes.
Even if you aren’t paddling in the event, it’s an … ahem… Great Experience to watch.
This Saturday, at Annie Williams Park in Bracebridge, come out and see why The Great Muskoka Paddling Experience has become an epic one in Ontario paddling and beyond.
– Muskoka Watershed Council media release: story
– Town of Bracebridge media release: story
– What’s Up Muskoka : story
– Muskoka Magazine: story (scroll down a page).
– Bracebridge Weekender: story
Mentioned in a number of Muskoka Watershed Council lectures over the past few years, calcium decline in Muskoka Lakes and in particular, the consequences of timber harvesting on lake calcium levels have been hinted at as a potential direct cause of declining health of our lakes in Muskoka. Here’s a past primer news story from the Huntsville Forester (Cottage Country News).
This week, we have an opportunity to discover more.
Dr. Shaun Watmough, an Associate Professor in the Environmental Resource Science Program at Trent University in Peterborough will present.
Here is a synopsis of the lecture:
Decades of acid deposition have depleted soil calcium reserves and, when combined with timber harvesting, predicted losses of calcium from soil are considerable and may ultimately threaten long-term forest health and productivity and lead to negative impacts on lakes.
In this talk, Dr. Watmough will provide an overview of our current understanding of calcium biogeochemistry and describe the reasons for the widespread decline in calcium levels in lakes and the implications of calcium losses on soil fertility and forest health in addition to impacts on lake ecosystems.
With an emphasis on south central Ontario, Dr. Watmough will document a nutrient budget for a selection harvesting regime in central Ontario hardwood forests. This work is then extrapolated to regional harvesting activities and management issues are discussed.
The lecture is this Thursday, October 10, 2013 from 7:00 – 9:00 pm at Nipissing University – Muskoka Campus, 125 Wellington Street, Bracebridge, P1L 1E2. As always, admission is by donation
I’ve just finished post-processing and editing this video for the Great Muskoka Paddling Experience. This event, held annually on the Saturday of the Thanksgiving weekend is a great opportunity for anyone – even if you don’t have a canoe or kayak, you can rent one there – to get out on the water for perhaps the last time of the year. It was a fun video to shoot and create and I hope it captures just how much fun the event can be.
The Great Muskoka Paddling Event benefits the Muskoka Watershed Council and helps give them a bit more of a budget to do important work. It’s a really well organized event and fun for all ages, and all levels of paddling experience.
Did you know that Gravenhurst Bay in Lake Muskoka is 4 to 5 times cleaner than it was 1970?
Did you know that everyone alive in the 70’s had toxic levels of lead in their blood?
Did you know that Muskoka has only half as many acid lakes as it once did?
Well, how about this then: if it wasn’t for the life in lakes, we would all be blind, deaf , stupid and dead.
To be blunt; we would all be blind, deaf , stupid and dead if it wasn’t for the life in lakes.
From the Muskoka Watershed Council Lecture Series I have just finished editing and have just posted this video on the Muskoka Watershed Council’s YouTube page.
Dr. Norman Yan, an extremely engaging speaker, revisits some past environmental successes, what we have learned and the steps we need to take to solve today’s environmental problems.
Learn how the reduction of phosphorus resulted in a clean up in Gravenhurst Bay while the International Joint Commission was still debating whether its carbon or phosphorus that spikes algal growth? This local Muskoka cleanup helped convince the world that phosphorus is the cause of cultural eutrophication. This phenomena is of increasing concern as population grows and the climate heats up; after all, we learned from this lecture, that algae really love heat.
Current photo of lake in China where people swim in an algal bloom.
Revisit the change to unleaded gas which got the toxic levels of lead out of our blood. Dr. Yan also discusses the many benefits of the ban on DDT, as well as the immediate benefits of the recent Ontario ban of cosmetic pesticides and herbicides. Also be sure not to miss houses disappearing from view as the Sudbury environment improves over 40 years!
All of us should be familiar with the fact that in Muskoka, our environment is our economy; over half our GDP comes from tourism and cottaging. In this lecture, Peter Sale attempts to convince us that our environment is far more than our economy.
Every year some 5 billion cubic metres of water pass through Muskoka – that’s 3 1/2 times the entire volume of Lake Muskoka. Half is evaporated or transpired by Muskoka’s forests and plants, the other half – some 2.5 billion cubic metres flows into Georgian Bay. As climate change affects Muskoka – producing warmer and wetter winters, but dryer summers with more intense storms – we may be trying to find ways to hold on to that water, just a little longer; maybe the beaver has a solution for us.
Peter, who describes himself as a strange, but harmless ecologist, talks about some of the many creatures in Muskoka including the beaver, the expected effects for Muskoka from climate change, an idea or two on solutions, and that there are other ways of valuing our environment other than simply to value it as a storehouse of resources to dig up and take away.
Wed. August 15 th at the Port Carling Community Centre at 7:00 is the latest of the Muskoka Watershed Council’s Environmental lecture series.
Did you know that Gravenhurst Bay is 5 times cleaner now than it once was? That Muskoka has only half as many acid lakes as it once did? That lead pollution, once a common environmental and human health problem, has all but disappeared? That the concentration of pesticides in the environment fell 10 to 100 fold once the cosmetic use of pesticides was banned?
We can, and often have, solved very large and complicated environmental problems that affect our health and the condition of the watersheds we share with thousands of other species. In this Muskoka Watershed Council lecture, Dr. Norman Yan will celebrate our past environmental successes by briefly reviewing the history of several good news stories. More importantly, he will talk about what we have learned from the past and the steps we need to take to solve today’s environmental problems.
We have created global environmental problems, but we have also solved environmental problems of a global scale on more than one occasion. Come learn how we can move from creating to solving such problems.
After showing cottages by boat (they were mostly island cottages for sale) on Lake Muskoka and Lake Rosseau all day Saturday, we knew that we had planned well. We finished up around 6:00 pm at the top of Lake Rosseau, in Cameron Bay across from the Village of Rosseau, and just in time for dinner.
Fortunately our favourite Muskoka restaurant Crossroads Pub & Grill is just across from the village public docks. Crossroads is one of Muskoka’s best kept secrets – and that’s not just our opinion; check out the opinions of others on TripAdvisor. As you may see, the only criticism is that it takes a while to get your food served. That’s true, but having your meal made on the spot for you, well, it is absolutely worth the wait. Richard and Julie run a fantastic, community engaged restaurant serving a lot of local products. Pure. Simple. Delicious. Check them out in action. I think they didn’t notice their Videographer spelled restaurant wrong at the end:)
So, having arrived at 6:30 for dinner, meeting up with family and friends and taking our own sweet time to order and enjoying our fabulous meals, we weren’t back to the boat until 10:15. Even at the height of summer in Muskoka, it’s getting pretty dark. With a dock waiting on lake Muskoka, we had a long way to go: all of Lake Rosseau, half of Lake Muskoka, Indian River, Mirror Lake and the lock at Port Carling between them – which closes at 8:00 PM.
Lake Rosseau at 10:30 at 30 knots.
It’s a surreal experience, at cruising speed on the black surface of the lake. I know the way, but it is COMPLETELY different in the dark. Nothing is familiar; everything you normally use for guidance is gone. I know that Lake Rosseau goes from close to 300ft. depths in the north to 100ft. or so in the south toward Port Carling; but it’s the edges I’m more worried about, and the rock shoals here and there. Anything other than that safe depth of water would be an absolute, potentially life threatening, disaster. This becomes little trouble though if you have, like I do an iPad and Navionics. For about 15 bucks I know, within a reasonable margin, where I am, where I am going and where the hazards are. All lit up on the iPad screen – you have to turn the brightness all the way down at night – really excellent!
Tobin Island Lake Rosseau on the Navionics app on my iPad
The main lock at Port Carling closes at 8:00 PM, and we arrived there around 11:00PM. Fortunately there is a self-serve lock available. It’s tricky manoeuvering around to the smaller lock in the dark. There are marker buoys set, but no good lighting – if you have docking lights, put them on to pick up the reflective tape on the buoys. Head for the blue dock edge and tie up.
Tied up at the self-serve lock on the Lake Rosseau side.
The self-serve part of the Port Carling locks is easy. Head over to the booth – we pay annually (about $85) for lock use, otherwise there is a drop box for your payment on the honour system. Then, you just stick your hand in the hole, move the lever in the direction of whichever gate is open, hold the lever in that position until the gate closes and the lock fills. It is crazy with bugs attracted by the light right over your head – but no biters for whatever reason.
Operating the self-serve lock at Port Carling.
The rest of the trip through Indian River and down into Lake Muskoka was just as beautiful as the Lake Rosseau passage. And again, no problem with the assistance of the iPad and Navionics. We docked about midnight. Nice adventure!
To have your customers recognize the lengths that you will go to, to take care of them – isn’t that the kind of testimonial we would all love to get, as thanks for what we do? An acknowledgement that our product or service accomplished exactly what was needed or desired, and performed under conditions and with such skill, that the customer couldn’t/wouldn’t take it on themselves. Well, “Working in the cold and dark to fix the problem.” is one of Stevenson’s Plumbing and Electric client’s comment of thanks.
I love to recommend good people. And in this case, not just because they have done excellent work on huge and small jobs throughout Muskoka (I know – many, many of our cottage clients are big fans); everything from complete builds to emergency repairs and the annual closing and opening of the cottage in Muskoka. But because they contribute to our quality of life in countless other ways. I couldn’t begin to list the ways and the events that the Stevenson’s have contributed to the Muskoka community; it wouldn’t do them justice. It is quite simply countless. They invest, and are invested in our community.
This is a family owned and operated business with trucks full of good people and gizmos all over Muskoka.
