Posts Tagged ‘Water Quality’
Stonefly Search 2015 Wrap Up
A Surprisingly Pleasant January Day
You never know what a Michigan January will bring; last year HRWC was forced to cancel the Stonefly Search because of sub-zero temperatures and blizzard conditions. But this year, on January 17, 125 intrepid volunteers enjoyed bright sunshine and 30 degree weather as they spread across the Huron River watershed. They were in search of stoneflies, which are only found in clean and healthy streams. Everyone made it back safe, and not a single leaky wader was reported! Overall, it was a great success!
The results are in, and are given in this pdf report.
What We Found
1. Usually when we look at the data after an aquatic bug search, we see that some sites do better than normal, some sites do worse, but most sites stay the same. This was a strange year because while most sites stayed the same, several did worse than normal, and none did better. Overall, the count of stonefly families was down about 10% from our last sampling event (2013). There is no clear explanation for this; weather conditions were great and the ice wasn’t any thicker than other year. We will start to be concerned if we continue to see this happen year after year. However, there is always natural variation in the data and collecting and this year will likely not be the start of a downward trend in terms of the overall sampling.
2. That being said, there are specific locations that have shown long-term degradation. For example, Honey Creek in Ann Arbor. The team searching for stoneflies in Honey Creek at Wagner were unable to find stoneflies. This site has been sampled 14 times since 1995, and this is the first time that stoneflies could not be found. This is a site with lots of turbulent highly oxygenated water and should be a great place for stoneflies. Taken in isolation, the absence of the stoneflies at Wagner Road would not be concerning given that this is a single sample. However, two upstream Honey Creek Adopt-a-Stream sites used to have stoneflies but haven’t in years. Stoneflies haven’t been seen in Honey Creek at Jackson Road since 2008; they haven’t been at Honey Creek at Pratt Road since 2003. All of the pieces combined indicates that the overall quality of Honey Creek is degrading over the last decade.
3. Davis Creek at Pontiac Trail is another location where the stonefly population has dropped over time. This change is concerning because it happened slowly over the last ten years and our spring and fall samples show a very similar pattern. In the early 2000s we regularly found one or two stonefly families at the creek, but they started to drop off and now have not been found since 2009.
4. All this doom and gloom needs to be put in perspective, though. Remember, most of the sites we visited were as healthy as ever. Of the 61 Adopt-a-Stream sites that HRWC uses to assess the overall water quality of the watershed, stoneflies are regularly found at 38 of them. In other words, 62% of our watershed has very high water quality and habitat. This agrees with recent analyses of other HRWC data, showing that 66% of the watershed was good to very high quality, 28% was fair to good, and 7% was highly impacted (2014 State of the Huron)
Next on the horizon!
Interested in doing more with our macroinvertebrate searches? Think about becoming a trained leader or collector by coming to the next training on March 29. This is an extremely important job because every team needs both a trained leader and collector, and we often do not have enough to meet the demand. Sign up for the training!
An excessive amount of nutrients is the top water quality concern in the Huron River watershed and the Great Lakes region, if not the entire county. This summer’s drinking water crisis in Toledo is a prime example of the potential impact. Waters in the Huron River watershed have suffered similar impacts, though somewhat less dramatic. Still, multiple millions of dollars have been invested within the watershed to reduce the sources of phosphorus (the growth-limiting nutrient in the region). So, where are we today, as we close out 2014? Have the programs, projects and other investments made any impact? HRWC’s Water Quality Monitoring Program results should shed some light on this question.
The first look at the phosphorus trends suggests that we have made little recent progress. As shown in the first chart, raw phosphorus concentrations in the middle Huron River watershed steadily declined from the beginning of the monitoring program (2003) through 2009, when the average phosphorus concentration rose above target levels (red line). From 2010 through this year, concentrations were much more variable, but averages were distinctly above the target. Phosphorus concentrations were also well above the target in the Lower Huron watershed over the last three years (not shown).
These raw results do not provide a complete picture, however. Concentrations can vary tremendously (just look at the error bars) depending on a number of variables, most importantly stream flow. 2008 was a particularly dry year, for example, while stream flows were well above average in 2011. HRWC storm sampling shows that, as stream flows increase during a rain storm, phosphorus concentrations increase, often dramatically.
When we account for the stream flow at the time of sampling, we get a somewhat different picture. The second chart shows phosphorus concentrations at Ford Lake, when adjusted for river flow (also shown as the blue line). The chart shows four periods — 1995 when the state DEQ sampled to set a phosphorus control policy, and three periods after the monitoring program began.
From this view, it is obvious that concentrations have come way down from original ’95 levels. Also, phosphorus concentrations have come back up since 2009, but by less than it seems from raw concentrations.
It is unclear why we have seen the recent increase in phosphorus concentrations. It does not appear to be linked to sediment concentration (i.e. erosion) as those data are not well correlated. Some national studies suggest that historical fertilizer application may be dissolved and slowly moving through the groundwater. If that is the case, while direct application of phosphorus in fertilizer has been addressed (through fertilizer policy in the City of Ann Arbor and later statewide law), we are still seeing the legacy effects of over-fertilization in our urban/suburban areas. There also has been an increase in phosphorus loading from the more heavily agricultural Mill Creek watershed, which could partially explain the increase.
HRWC provides a more detailed tributary evaluation in its annual monitoring report. For reports, presentations and 2014 raw data, see the Water Quality Monitoring page.
Wait, what? The Clean Water Act doesn’t protect clean water? How can that be?
Well in 2001 and 2006 there were 2 Supreme Court Decisions that confused the implementation of the Clean Water Act (CWA) and placed many wetlands and streams out of protection and at risk.
Earlier this year, the U.S. EPA and the Army Corps of Engineers released a very important draft rulemaking. This draft rule clarifies which waters are protected under the Clean Water Act. This rulemaking will fundamentally influence our work to protect or restore our watershed.
Please comment on the draft US EPA rule on Clean Water Protection (aka Waters of the US) Rulemaking
Comments on this important rulemaking are due October 20, 2014. We encourage river lovers (YOU) to speak up! If you haven’t been following this issue or need a refresher, please check out this link.
Your comments can be as simple as, “Clean water is important to me. I want EPA to protect it for my health, my family, and my community” or as specific as, “I support the agencies proposal to define “waters of the United States” in section (a) of the proposed rule for all sections of the CWA to mean: Traditional navigable waters; interstate waters, including interstate wetlands; the territorial seas; impoundments of traditional navigable waters, interstate waters, including interstate wetlands, the territorial seas, and tributaries, as defined, of such waters; tributaries, as defined, of traditional navigable waters, interstate waters, or the territorial seas; and adjacent waters, including adjacent wetlands. Waters in these categories would be jurisdictional “waters of the United States” by rule—no additional analysis would be required.”
While doing a habitat assessment on the Huron River, I was lucky enough to see a pocketbook mussel in the process of attracting a fish host and managed to get some pictures and a video of it.
Please excuse the poor video quality- it looks like a bubble got trapped on our underwater camera lens! But you can make it out. The mussel is buried in the sediment, positioned so that its opening is facing up. The mussel is extending a part of its mantle into the current to use it in its reproduction process.
Mussels reproduce by releasing their glochidia (microscopic larvae) in the presence of fish. The glochidia latch onto the fish’s gills and fins where they dwell for days or weeks, depending on the species and water conditions. During this time the glochidia develop into microscopic juveniles and eventually drop off the fish. If they land in a suitable place, they can create a new mussel bed.
Therefore, since fish are integral to a mussel’s life cycle, the mussels have developed ways to get a fish’s attention. By extending the colorful mantel into the current, the mussel acts like an angler’s fish lure! When a fish gets closer- the mussel shoots out the glochidia!
Special acknowledgments go to Ryan and Marty of ECT, for experiencing this really cool find with me.
Last week, nearly 500,000 people lost access to clean water for drinking and bathing due to a toxic algae bloom that occurred around the City of Toledo’s drinking water intake. The bloom was likely caused by excessive amounts of phosphorus (and perhaps other nutrients) in the Western Lake Erie Basin.
Although the immediate crisis in the city of Toledo has passed, the threat to drinking water supplies in Toledo and other Lake Erie communities has not. Lake Erie supplies water for 11 million people who live near the lake.
Watershed councils and environmental groups, including HRWC, have been working for years to reduce nutrients, like phosphorus, in our watersheds. It is these nutrients – from agricultural practices, lawn fertilizers, wastewater treatment plants, and polluted runoff from pavement – that are a chief cause of the algae blooms. The changing climate and alterations in invasive mussel populations also contribute to the algae blooms. On top of it all, our lakes also suffer from the cycling of nutrients deposited in the lake from years past.
Here in the Huron River watershed, HRWC and municipalities along the river have made major investments to reduce our nutrient inputs such as stronger soil erosion controls, phosphorus and buffer ordinances, streambank restoration, and wetlands and natural area protection and construction to hold and infiltrate water. As a result phosphorus levels in the middle section of the watershed entering Ford Lake have been reduced substantially. While the lakes still have occasional algae blooms, the length and size has been reduced.
Overall, the phosphorus load contributed by the Huron River watershed to Lake Erie pales in comparison to the massive load from the heavily agricultural Maumee River watershed. In response to this heavy agricultural input, the International Joint Commission has called for better nutrient management and soil erosion controls by agriculture including a ban on winter manure application. They also recommend continued reduction of urban sources and wetland restoration. Last week, a New York Times editorial called for similar action.
Nutrient pollution is a clear danger not only to drinking water, but to efforts to develop a “blue economy” for the Great Lakes, including HRWC’s RiverUp program to promote the river as a recreational, economic, and cultural resource. This new economic future cannot stand with national headlines declaring Great Lakes water unsafe to drink.
Until we stop polluting our lakes and rivers, our economy, drinking water and way of life are in jeopardy. To learn more about what you can do to reduce your impact on the Huron River Watershed and Lake Erie downstream, take a look at our tips on how to become an H2O Hero and how to be a responsible shoreline property owner.
Searching for ways to care for your waterfront?
“Waterfront Wisdom” provides helpful information regarding how to best maintain shoreline property and protect water quality at the same time. Every waterfront homeowner has a unique opportunity to help improve the health of the Huron River watershed while maintaining a beautiful shoreline and keeping waterways clean for swimming, fishing and boating.
Some of the many tips that can be found inside:
- Minimize runoff by installing a rain garden
- Use native plants to keep geese away
- Prevent soil erosion by growing a natural shoreline along the water
- Choose phosphorus-free fertilizer or avoid fertilizer altogether to help reduce algal blooms
- Prevent excess nutrients and harmful pathogens with proper septic system maintenance
You will not only provide healthy habitat for wildlife and support recreation, but also protect drinking water.
If you have any questions or would like a printed copy mailed to you, please contact Pam Labadie at email@example.com.
For Further Information:
The adventure comes to a close!
Are you interested in being a creekwalker? You can recruit your family and friends to join you on your team or ask HRWC to assign you to a team. The training is on June 10, 6:30- 8 pm. Check out this webpage and email Jason at firstname.lastname@example.org to volunteer.
Guest Author: Mark Schaller
It all comes down to this, the final visit. This time, I arrived early so I could set some crayfish and minnow traps. I had seen fish on earlier visits but could never get a good look at any of them. The deepest part of the stream was where I placed the thermometer so I figured that would be a good site for a trap. I also placed a crayfish trap further upstream in a rocky area hoping to catch some more crayfish and get a good positive ID. Everything was set!
As I walked back to my Jeep, Erin was heading down the trail. After our “Hello’s” we headed back to the parking lot to get the rest of the gear. We picked up the paperwork, meter, measuring stick and my camera and headed back to the stream. Our starting point was where I placed my crayfish trap and we had 6 crayfish already in the trap. As I started to pull them out for pictures I found that 3 of them were the invasive Rusty. The other 3 were northern crayfish. They were a lot bigger than the Rusty’s so I’m hoping they are holding their own against them. Too bad; after our last trip I thought that there weren’t any Rusty’s in here.
We then started by taking the water temperature and conductivity readings. When we reached the halfway point I handed the GPS and water conductivity meter over to Erin. She wanted to see how the meter worked and I needed to get some pictures of her as well. She took about 4 more readings and then next thing we knew we were at the end of our sample area. All that was left now was for Erin to compile all the data and for me to turn it in with all the equipment. Mission Accomplished!
I have to say the creekwalking experience was a lot of fun. Walking up and down Wood Creek brought back a lot of fond memories of myself as a kid exploring all the creeks and streams of my youth.
Our big thanks go to Mark and Erin, and all our other creekwalking volunteers, from this past summer!
River and creek sampling
Thanks to 108 volunteers who contributed a total of 643 volunteer hours, the 2014 River Roundup was a great success! The weather was perfect for our volunteers as they split into 21 teams and traveled to 42 different creek and river locations across the Huron River Watershed to assess the aquatic benthic macroinvertebrate community. This study is one of the most effective ways that HRWC has to keep its finger on the pulse of the stream. From the data collected at this semi-annual event, we get a better understanding of which creeks and rivers are getting better, which are getting worse, and how we can direct our management activities.
You can see all the results in April 2014 River Roundup Report.
- Emily checks out a crayfish! credit: Max Bromley
- Bruce collects insects in South Ore Creek. credit: Dick Chase
- Picnic tables! Volunteers love these. (Mill Creek at Warrior Park in Dexter) credit: Eric Bassey
- Sampling the Huron River by Riverside Park in Ypsilanti. credit: Kristen Baumia
- Hay Creek winds through wetlands and forests. credit: David Amamoto
- Sorting the bugs on ID Day! credit: David Amamoto
- "What the heck is it?"--Paul Steen. credit: David Amamoto
In a nutshell, the health of the watershed as judged by our macroinvertebrate sampling is holding steady. Of the 62 sites that we monitor to judge this, 28 sites have had no statistically significant changes over time, and 6 sites are too new to make this judgment.
Fourteen sites are declining, and these include locations on Chilson Creek, Davis Creek, east branch of Fleming Creek, Norton Creek, and South Ore Creek. The majority of the declining sites are in Livingston County. Eight of the declining sites are in Livingston, two are in Washtenaw, and three are in Oakland.
Fourteen sites are significantly improving. Twelve of the improving sites are in Washtenaw County, including Boyden Creek, Horseshoe Creek, the main and west branches of Fleming Creek, Huron Creek, the Huron River in Ann Arbor and Ypsilanti, Malletts Creek, and several places on Mill Creek. One site is improving in Livingston County (Mann Creek at Van Amberg Road), and 1 site is improving in Wayne County (Woods Creek at the Lower Huron Metropark).
1. Malletts Creek is an urban creek in Ann Arbor that has been the focus of restoration efforts for well over a decade. Last fall, we noticed a more diverse insect community in Malletts Creek than had ever been seen before. We are happy to report that this spring we once again saw a healthier insect community than ever before. From 1993-2013, volunteers have found an average of 5 insect families in spring samples, but in 2014 volunteers found 9 insect families. One of these insect families is a finger-net caddisfly, which is common in healthy streams but has never been found in Malletts Creek until now. The increase in insect families over time is statistically significant.
Our congratulations go out to all of the partners involved in fixing Malletts Creek! An increase in the diversity of aquatic insects reflects an increase in the overall water quality, water stability, and habitat quality. This is a major accomplishment!
2. The volunteers who sampled in Boyden Creek along Delhi Road pulled in a bonanza of caddisflies! They found 5 different types of caddisflies: the common net-spinner (Hydropsychidae), the square barked case- maker (Lepidostomatidae), the northern caddisfly (Limnephilidae), the finger-net caddisfly (Philopotamidae), and the rock case-maker (Uenoidae). They also found two families of stoneflies and two families of mayflies. We have been seeing good changes in Boyden Creek for several years now, and this sample was one of the best taken this spring.
The volunteers who sampled at Greenock Creek near South Lyon were not impressed with the size and abundance of the leeches they pulled out of their trays, nor were they impressed with the total abundance and diversity of the overall insect community. Greenock Creek was never a very healthy creek, but conditions have significantly worsened here since monitoring began in 1993. The creek is located downstream of Nichwagh Lake, which is impounded by a dam. Water exiting the lake and entering the creek is quite warm, regularly reaching 85 degrees Fahrenheit in the summer, which is too warm for many types of aquatic life. It is quite possible that dissolved oxygen levels are very low in the creek also (even in the non-summer months when the water is not as warm). This is something that HRWC will look into.
The adventure continues!
You can read Mark Schaller’s first post here about his experiences with HRWC’s Creekwalking Program.
Are you interested in being a creekwalker? You can recruit your own family and friends to join you on your team or ask HRWC to assign you to a team. This year’s training is on June 10, 6:30- 8 pm. Check out this webpage and email Jason at email@example.com to volunteer.
Guest Author: Mark Schaller
Now that the initial visit and thermometer placement was out of the way it was time to schedule the second visit. Like our previous trip, real life issues came up for most of the team, and Erin and myself continued our team of two.
We decided that Erin would handle the writing duties while I took the reading and pictures. This time around we were supposed to check for signs of wildlife and pick up any garbage. After her last losing battle with mosquitoes Erin came prepared this time. Long sleeve shirts and real insect repellent were in order. She even sprayed me down to try to keep the bugs at bay. It didn’t work.
Woods Creek was pretty much in the same state as the last time we were here. We entered at the first bridge and got to work. We took a few temperature and water conductivity readings and not much had changed. Since I didn’t have to concentrate on the readings, I spent more time checking out what signs of life there were. Erin is more of an herbologist than I am so she kept track of the plant life. She was rattling off plant names and I just took her word for it. I’m not a vegetarian.
Like last time I spotted some smaller bait fish but couldn’t get a good enough look at them to see what they were. When we got to the water thermometers I saw some larger fish hiding underneath the stump but again I couldn’t get a good look to see what they were. What I did see were a lot of crayfish. These guys I was very interested in. I wanted to know if they were native crayfish or the non-native rusty variety. For the rest of the walk I tried to catch one and for most of the walk my efforts were pretty futile. Just as I was about to grab one it would take off and disappear in the silt. Even with my advance warning system screaming every time one ran across her foot, I still couldn’t corner one long enough to grab it.
Eventually I caught one and it wasn’t a Rusty. So far so good. I was able to catch a couple more and they were all native crayfish as well. I don’t know what kind exactly, but they weren’t Rusty crayfish. I’m sure the Rusty’s will eventually work their way into this creek but for now no sign of them.
One of the other things we had to do during this trip was pick up garbage. I’m glad to say that there wasn’t much. I expected to find plastic worm containers, fish line, and empty cans. All I really found was some pieces of broken glass and an old shirt. Nice to see that there wasn’t much trash!
Stayed tuned for the third and final part of Mark’s creekwalking experience.
Water quality is a major focus of our work at HRWC. Three articles in this edition of News to Us address water quality from very different angles – youth education, lawn and garden care, and beer. Yes, beer. Plein air art is a way of enjoying nature that may be new to some of you. And, finally, on the heels of the release of the National Climate Assessment last week, a piece on why global warming leads to more severe rainfall – an outcome particularly significant to the Midwest.
White Lake Middle School students study human impact on Huron River Students are taking to the river to learn about how human actions can impact local rivers. Students measure water quality and sample invertebrates at various spots in the headwaters of the Huron River watershed. This program is based on the GREEN program developed at the UM by Bill Stapp with guidance from HRWC.
The Toxic Brew in Our Yards This opinion piece does a great job highlighting the health risks of outdoor chemical use on our lawns and gardens. The author makes very clear the connection between chemical use and water quality as well. There are alternatives to pesticide and synthetic fertilizer use that protect your family’s health and the health of our waterways and drinking water. To get started see HRWC’s webpages on going phosphorus free and growing a healthy lawn.
Short’s Brewing ties seasonal beers to Clean Water Campaign We get a lot of support from local brewers for our water quality improvement efforts. It is not lost on them that beer is mostly water. Local water. One of Michigan’s most successful microbreweries is using its popularity to educate residents on the threat of an Enbridge pipeline that runs through the Straights of Mackinac. There has been growing concern about the condition of the pipeline, the accountability of Enbridge to maintain the line and the consequences of an oil spill to our Great Lakes.
Looks Like Rain Again. And Again. As mentioned in a recent HRWC blog, the 3rd National Climate Assessment report was released last week. Spurred by the report, climate change has been all over the news lately. This piece is both interesting and useful to those of us in Michigan. The aspect of climate change that is likely impact our region the most is rainfall. More of it and in larger storms. This piece explains why global warming leads to more rain. Learn more about what HRWC and municipalities within the Huron River watershed are doing to prepare for more rain.
Artists venture outdoors, brush up on nature scenes Yet another way to enjoy the river! Plein air artists are artists who paint in the open air, capturing scenes of nature or community life over the span of a few hours. Several plein air events happen in our area over the course of the summer including one in Brighton, June 28th- 29th and in Dexter, August 12th – 16th.