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Lateral view of a Male Baetis (Baetidae) (Blue-Winged Olive) Mayfly Dun from Mystery Creek #43 in New York
Blue-winged Olives
Baetis

Tiny Baetis mayflies are perhaps the most commonly encountered and imitated by anglers on all American trout streams due to their great abundance, widespread distribution, and trout-friendly emergence habits.

Lateral view of a Clostoeca disjuncta (Limnephilidae) (Northern Caddisfly) Caddisfly Larva from the Yakima River in Washington
This one was surprisingly straightforward to identify. The lack of a sclerite at the base of the lateral hump narrows the field quite a bit, and the other options followed fairly obvious characteristics to Clostoeca, which only has one species, Clostoeca disjuncta.
27" brown trout, my largest ever. It was the sub-dominant fish in its pool. After this, I hooked the bigger one, but I couldn't land it.
Troutnut is a project started in 2003 by salmonid ecologist Jason "Troutnut" Neuswanger to help anglers and fly tyers unabashedly embrace the entomological side of the sport. Learn more about Troutnut or support the project for an enhanced experience here.

Dawnrenee has attached these 3 pictures to aid in identification. The message is below.
Dawnrenee
Posts: 1
Dawnrenee on Aug 19, 2008August 19th, 2008, 10:16 am EDT
I don'k know if anyone can help me or not, but it's worth a shot. I had let my kids put some little tadpoles in my aquarium for the fish to eat, but I know that was a big mistake. Now the bottom of my aquarium is covered with tiny mites. They haven't tried messing with my fish YET. I've tried cleaning the tank, but they won't go away. I don' know what they are to even try to find out how to get rid of them permantly without killing my fish. They are smaller than spider mites that you would find on plants. They are clear with what looks like about 6 black dots on their backs and the underneath has nothing. The body seems to be a thin shell-type. Not hard to squash, but seems hard for it's tiny size. I took some pictures using my small camera and a magnifying glass. I don't have anything fancy to take better pictures, but I hope the description will help out. The mites are on regular size small marble and regular size small aquarium gravel. And I can answer any questions to the best of my ability. Can someone please help? I can also be reached at dawndawnrenee@aol.com. Thanks, Dawn S.

p.s. Here are three pics. I have one more, but there was too many kb to be acceped. Thanks for any and all help.
Inconnu
Beaumont, Alberta

Posts: 3
Inconnu on Aug 28, 2008August 28th, 2008, 7:16 am EDT
It is hard to make them out clearly but the shape of the clearer critters say they are daphnia. If they are and I believe I am right, they are raised as food for aquarium fish. Hope this helps....Kerry
existo bonus ut invicem
Troutnut
Troutnut's profile picture
Administrator
Bellevue, WA

Posts: 2758
Troutnut on Sep 2, 2008September 2nd, 2008, 6:42 am EDT
Yeah, a couple critters in the second picture especially look like Daphnia. If so, they're actually a good and harmless food source for anything else in your tank. Don't worry about it.
Jason Neuswanger, Ph.D.
Troutnut and salmonid ecologist

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