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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.

Dorsal view of a Ephemerella mucronata (Ephemerellidae) Mayfly Nymph from the Yakima River in Washington
This is an interesting one. Following the keys in Merritt R.W., Cummins, K.W., and Berg, M.B. (2019) and Jacobus et al. (2014), it keys clearly to Ephemerella. Jacobus et al provide a key to species, but some of the characteristics are tricky to interpret without illustrations. If I didn't make any mistakes, this one keys to Ephemerella mucronata, which has not previously been reported any closer to here than Montana and Alberta. The main character seems to fit well: "Abdominal terga with prominent, paired, subparallel, spiculate ridges." Several illustrations or descriptions of this holarctic species from the US and Europe seem to match, including the body length, tarsal claws and denticles, labial palp, and gill shapes. These sources include including Richard Allen's original description of this species in North America under the now-defunct name E. moffatae in Allen RK (1977) and the figures in this description of the species in Italy.
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.
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Luc384 has attached these 3 pictures. The message is below.
Luc384
Belgium / zoersel

Posts: 14
Luc384 on Oct 9, 2007October 9th, 2007, 11:38 pm EDT
Hi Guys,
here some pictures from the Huchen or Donausalmon to give you an idea about this fish!
Kind regards from
Luc
The worst day fishing is still better than the best day at work!!
www.flyfishingpassion.net
Mcjames
Cortland Manor, NY

Posts: 139
Mcjames on Oct 10, 2007October 10th, 2007, 6:09 am EDT
whoa... I wouldnt get in the water with that thing
I am haunted by waters
Martinlf
Martinlf's profile picture
Moderator
Palmyra PA

Posts: 3047
Martinlf on Oct 10, 2007October 10th, 2007, 6:47 am EDT
Holy Mackeral. Or should that be Holy Taimen? What a fish!!!!
"He spread them a yard and a half. 'And every one that got away is this big.'"

--Fred Chappell
Gene
Posts: 107
Gene on Oct 10, 2007October 10th, 2007, 8:45 am EDT
Luc:

Is that the Huchen of the Danube River System? Unbelievable! What did you catch him on?...A large midget dressed as fish?

Gentlemen: Last I knew about Huchen. This classification system may have changed but here it is:

Huchen (Hucho hucho)

Original Range: from the Danube to Siberia and South to Japan

Essentially a river fish but sometimes found in lakes.

Overall shape similar to the Atlantic Salmon (Salmo salar) but a bit more cylindrical with a larger head and large adipose fin. When small in some stream it is mistaken for a brown trout. However, brownies have red or orange spots Huchens do not.

High growth rate of up to 4 lbs per year.

Huchen usually spawn between March and May.

Introduction elsewhere has usually met with failure due to the fish's high oxygen requirements and low pollution tolerance. It is considered endangered. Flesh not considered as good as salmon but palatable none the less.

Also very hard to rear in hatcheries due to oxygen requirements and size of fish.

A beautiful fish that most of us unfortunately will never be able to fish for but we are glad for Luc and friends. Have a beer or wine for all of us Luc!

tight lines and big Huchens

gene
www.limestoner.com
Jmd123
Jmd123's profile picture
Oscoda, MI

Posts: 2474
Jmd123 on Oct 10, 2007October 10th, 2007, 1:32 pm EDT
Geez, what was the length and weight on that thing?

Jonathon
No matter how big the one you just caught is, there's always a bigger one out there somewhere...
Luc384
Belgium / zoersel

Posts: 14
Luc384 on Oct 10, 2007October 10th, 2007, 9:47 pm EDT
The fish on my website is 22kilogram for 1.20meter!
I didn't caught the fish!!! I never fished the huchen yet... i'm invited for the first time now on november 15. Untill last year the huchen fishing was not permitted for strangers.. only for slovenian people. Now you need a licence and a guide if you want to fish the huchen.
I'll let you know how it went when i get back!!
Kind regards from
luc
The worst day fishing is still better than the best day at work!!
www.flyfishingpassion.net

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