Fly Fishing Insider Podcast
Knowing an invasive species is present does not change angler behavior. In Michigan State survey research, 55 percent of anglers who knew New Zealand mud snails were in the water they fished still did not clean their gear. Time, travel and wear on expensive waders are the real barriers, so the fix is removing them.
Dan Waschura hosts the Points North Podcast, a reported, produced show covering the Great Lakes region, and came to fly fishing after moving to northern Michigan.
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What does the Great Lakes region offer a visiting fly angler?
The Great Lakes region gets written off as flyover country, but northern Michigan alone stacks Blue Ribbon trout streams like the Boardman River near Traverse City, the Platte River, and the Two Hearted River up in the Upper Peninsula, alongside the lake fishing itself. Grand Traverse Bay off Lake Michigan produces lake trout within reach of a small boat. The season is long and far less prone to the extreme swings that shut down water further west.
Does knowing about an invasive species change angler behavior?
A graduate researcher at Michigan State University set out to test whether awareness of an invasive species changes what anglers do, expecting the answer to be yes. Among survey respondents who knew New Zealand mud snails were present in the water they fished, 55 percent still did not clean their gear. That result reframes the whole problem: if knowledge alone does not produce the behavior, education campaigns by themselves will not stop the spread.
Why are New Zealand mud snails so hard to contain?
New Zealand mud snails are roughly the size of a grain of rice, so they are difficult to spot on a boot or a wader seam, and they survive for weeks with only limited moisture. They also clone themselves, so a small number reproduces rapidly. The ecological concern is at the bottom of the food chain - the snails filter out the plankton that the invertebrates trout feed on depend on. They spread from the Snake River in Idaho across the country and are now common in northern Michigan.
What happened when researchers put boot brushes at river access points?
The same Michigan State team tried removing a single barrier: a low-tech boot brush station with no water involved, placed at popular access points on Michigan rivers with a sign explaining mud snails and rock snot, plus a trail camera to record who engaged with it. Preliminary results showed about 87 percent of anglers walked straight past. The interesting subgroup was anglers with children, who stopped more often because the kids pointed at the sign and asked what it was about.
Why do anglers skip cleaning their waders?
The barriers to cleaning waders stack quickly. Time and competing priorities come first. Travel and camping remove the place to do it - there is no obvious spot to scrub boots in a hotel room before dinner. There is the sense that one angler cleaning gear cannot matter if not everyone does it. And there is the money: brushing and chemical cleaners wear on a $500 to $900 pair of waders, degrade the thread and clog the membrane, and can put a warranty claim at risk.
How do you make wader cleaning actually happen?
The approach that works is a permanent station rather than a decision. Hang the waders and boots outside where a hose bib, a short hose and a scrub brush already sit, so cleaning is a two-minute reflex on arrival. For a boat, know where you have been, where you are going and whether a boat check station falls on the route; if the station will be closed, hose the boat down at home instead. The pattern is the sales principle applied to conservation: remove the obstacles for the person you want to act.
How do you keep waders from failing on their own?
Waders left wet in humid conditions grow mildew where water is held longest, which is on the taped seams - exactly the failure point that voids a warranty claim. Turn waders inside out to dry rather than hanging them wet. A cheap trick is to collect the silica packets that come in pill bottles and new shirts, drop a handful into a sock in each leg or boot, and recharge the packets on a hot day in the sun or in an oven at low heat when they stop absorbing.
Key takeaways
- Awareness campaigns alone do not change gear-cleaning behavior; removing the physical obstacle does more than adding information.
- New Zealand mud snails are rice-grain sized, survive weeks in limited moisture and clone themselves, so a few on a boot can seed a river.
- Mud snails congregate around angler access points, which is the evidence linking their spread to anglers rather than natural drift.
- Build a fixed cleaning station at home - hose bib, short hose, brush, where waders already hang - so cleaning takes two minutes with no decision involved.
- Turn waders inside out to dry and stash silica packets in a sock in each leg to stop mildew forming on the taped seams.
- Anglers who travel or camp face the hardest cleaning problem; plan gear and a routine for it before the trip rather than improvising in a hotel room.
