Re: NANFA-- Farthest & Highest

Christopher Scharpf (ichthos_at_comcast.net)
Wed, 10 Mar 2004 21:27:06 -0400

> What are the most northern Freshwater North American Fish?

Arctic char, which occurs as far north as the short, craggy streams carved
out of the unfrozen edge of southern Greenland.

> What fish are found at the Highest elevations NA and World wide?

Off the top of my head, I don't know for sure. Apache trout (Oncorhynchus
apache) and Mexican golden trout (O. chrysogaster) historically occurred up
to 2,700 meters. Rainbwow trout (O. mykiss spp.) have occurred at 3,000 m of
the Sierra Madre Occidental. Speckled dace (Rhinichthys osculus) occur in
the higher benches of the Grand Canyon, at around 3,000 m. I suspect various
trouts have been stocked into fishless lakes at even higher elevations. This
requires further investigation.

Worldwide, it's a species of nemacheiline loach (Yunnanilus) that lives in
Tibet, in hot springs at around 5,200 meters. (Lake Titicaca is only 3,812
meters.)

Chris Scharpf
Baltimore
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