BIOLOGIST REPORT

Mahoning Dam Tailrace


Pennsylvania Fish and Boat Commission biologists conducted a May 8, 2001 an assessment at the Mahoning Dam Tailrace in Armstrong County to evaluate fall trout fingerling stockings in Mahoning Creek.  Only three trout were sampled and all appeared to be from the fall of 2000. The fingerling program is not providing a good return to anglers, and as a result the program will most likely be terminated.

The cause for poor returns is not known. Summer temperatures may become too high causing trout to outmigrate to cooler areas in the basin. They do not appear to survive through the warm summer months.

Additionally, the size and densities of channel catfish, smallmouth bass and walleye sampled during the assessment indicate it is very probable the trout fingerling are serving as forage for these warm and cool water species. Channel catfish ranged from 14 to 15 inches with a large individual of 27 inches also sampled.  A dozen of the smallmouth bass sampled ranged from 11 to 14 inches in length, and walleye were running from 16 to 21 inches in length.

Trout fishing opportunities are limited in the tailrace area, but it has good numbers of quality sized channel catfish, walleye, and smallmouth bass.

-- Fisheries Management Area 2

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