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Posted on November 19, 2018 at 6:55 PM by Ryan Hiniker
Drainage update 11/19/2018
Upcoming Drainage Hearings or Meetings:
Cylindrospermopsis raciborskii, Cylindro for short, is a tropical algae that is making a home in many Minnesota water bodies. Algae are common across all of our bodies of water in Minnesota. From our prairie pot hole lakes of southern Minnesota, to our rockier glacial lakes of northern Minnesota, we have some form of algae in them all. Not all algae are bad nor toxic, nor is this necessarily a sign of an impaired ecosystem.
Recent studies are showing that our bad algae, also known as “blue-green” algae, outbreaks are becoming more severe. There are many, if not millions, of ideas on why these sometimes-toxic algae blooms are spreading rapidly across many of our favorite water bodies. The finger of blame could be pointed in many different directions, but it’s easiest to join forces to do small bits of good rather than blame. Many lake associations have been taking action because of growing issues with their area lakes. Many neighboring communities along water bodies are joining forces with their community members to do their part of cleaning and preserving our precious lake resources.
This newer tropical algae has been found in our southern Minnesota lakes, including Madison Lake. Cylindro (tropical algae) is much like its cousin “blue-green” algae in that it will bloom and spread during the same times of year and under similar conditions as “blue-green” algae. Cylindro can also produce toxic blooms of algae that can make humans and animals sick. Despite this tropical algae species origins, it somehow has figured out how to over winter in our cold climate.
The major difference between Cylindro algae and our typical “blue-green” algae is the visual appearance. Typical “blue-green” algae blooms are thick and sometimes smelly, usually floating on the surface of the water. Cylindro algae is very different in that it usually blooms several feet below the water surface. Even though it might be below the surface blooming, it still is very capable of producing toxins without visually seeing signs.
Our water bodies are our biggest resource and our largest legacy that we leave to the next generations. Scientists are spending much more time and effort understanding these newer challenges with algae. They are not only taking water samples during the warmer months but also mud samples during winter months to build up a database. Hopefully this database can give better insight into how to predict, and maybe ultimately prevent, huge toxic algae blooms on our water bodies. For more reading on this great article, click the hyperlink.
Recent Drainage Inspections – week of November 13 – November 16:
Happy Thanksgiving to everyone. I hope it is a very enjoyable and meaningful holiday with friends, family, and loved ones.
We require that all repairs to a county drainage system (tile or open ditch) be authorized by one us in the drainage office, either Craig or myself, before any repairs are made.
Drainage Management Specialist