![]() ![]() Swimmer's itch is uncomfortable, but it usually clears up on its own in a few days. Humans aren't suitable hosts, so the parasites soon die while still in your skin. In Black Lake, most of the parasites come from the Common Merganser. The parasites that cause swimmer's itch come from various combinations of snails and waterfowl. Swimmer's itch is a rash usually caused by an allergic reaction to parasites that burrow into your skin while you're swimming or wading in warm water. Swimmer's Itch has risen high among the priorities of the users of Black Lake in recent years. stagnicolae levels in Black Lake decrease. We continue to believe that the frequency and severity of swimmer’s itch cases will continue to decrease as the T. Recent evidence we have conducted this year further supports this conclusion. stagnicolae, to swimmer’s itch cases on Black Lake. szidati means that these parasite species are also cycling on Black Lake, and likely contributing, albeit to a much lesser extent than T. The verified presence of avian schistosomatid C and T. ![]() We'll be attentive to this issue in 2022.Īs we’ve made clear in the past, it’s impossible to completely eradicate swimmer’s itch on any lake. This species has never been detected in northern Michigan lakes before. Unfortunately, a new species that uses mallard ducks as the host was detected. Remember that the actions that we take in 2021 will affect our measures in 2022, so we are optimistic for improvement this year. We don't have a baseline comparison for that measure, but will have it for 2022. 19 cases of Swimmer's Itch were reported on Eyes on the Lake in 2021. These results were substantiated with chance encounters with property owners that reported a very noticeable change in their experience with Swimmer's Itch was greatly improved. The parasite was detected in only 2 of 7 testing sites (vs 5 of 7 in 2019). Tests of lake water, bird fecal matter, and snails reports that the relocation of the common mergansers has resulted in substantial decrease in the swimmers itch parasite. They responded by trapping 5 broods including all 31 ducklings and relocated them to locations that don't have the snail that completes the lifecycle of the parasite that causes swimmers itch. Well, they were right about that! BLPS members reported 17 merganser sightings on Eyes on The Lake that alerted SI Solutions automatically. Our partner, Swimmer's Itch Solutions, told us that after two seasons we should see a dramatic change in swimmer's itch cases on Black Lake.
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