Hex Mayflies
Hexagenia limbata
The famous nocturnal Hex hatch of the Midwest (and a few other lucky locations) stirs to the surface mythically large brown trout that only touch streamers for the rest of the year.
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As far as I can tell, this species has only previously been reported from one site in Oregon along the Columbia gorge. However, the key characteristics are fairly unmistakable in all except for one minor detail:
— 4 small yellow spots on frons visible in photos
— Narrow occipital spinule row curves forward (but doesn’t quite meet on stem of ecdysial suture, as it's supposed to in this species)
— Short spinules on anterior margin of front legs
— Short rposterior row of blunt spinules on abdominal tergae, rather than elongated spinules dorsally
I caught several of these mature nymphs in the fishless, tiny headwaters of a creek high in the Wenatchee Mountains.
— 4 small yellow spots on frons visible in photos
— Narrow occipital spinule row curves forward (but doesn’t quite meet on stem of ecdysial suture, as it's supposed to in this species)
— Short spinules on anterior margin of front legs
— Short rposterior row of blunt spinules on abdominal tergae, rather than elongated spinules dorsally
I caught several of these mature nymphs in the fishless, tiny headwaters of a creek high in the Wenatchee Mountains.
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Strmanglr on Oct 3, 2018October 3rd, 2018, 6:17 am EDT
Michigan, Enbridge agree on deal to replace 65-year-old crude oil pipes in Straits of Mackinac.
www.clickondetroit.com/michigan-water/michigan-enbridge-agree-on-deal-to-replace-65-year-old-crude-oil-pipes-in-straits-of-mackinac
TRAVERSE CITY, Mich. - Michigan Gov. Rick Snyder’s administration and Canadian pipeline giant Enbridge have agreed to replace twin 65-year-old crude oil pipes in a channel linking two of the Great Lakes with another that would run through a tunnel far below the lake bed, officials told The Associated Press.
The plan calls for drilling an opening for the new pipeline through bedrock at depths that could exceed 100 feet (30 meters) beneath the Straits of Mackinac, a more than 4-mile-wide (6.4-kilometer) waterway where Lakes Huron and Michigan converge, officials told the AP prior to an announcement scheduled for Wednesday. The massive engineering project is expected to take seven to 10 years to complete, at a cost of $350 million to $500 million — all of which the company would pay.
Partsman on Oct 3, 2018October 3rd, 2018, 2:05 pm EDT
Certainly sounds like good news jobs created and our great lakes protected. More good news was the grayling fish farm is no more, Im not against a fish farm per se, but not something that has the ausable river running right through it.
Mike.
Mike.
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