Scott Alexander with Malcolm Crittenden and Robert Ryder, PA Department of Environmental Protection (DEP), “Instream Limestone Sand Dosing in the Allegheny Plateau”
Attendees will learn of the successful recovery of trout populations in low-buffered,
acidic streams by the use of alkaline treatments. Documented low-cost/long term trout restoration methods such as (ILS) may be useful for other watersheds dealing with stream acidification because several high cost alternatives have been proposed in Pennsylvania which on analysis may deliver far less stream-alkalinity per dollar.
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Instream Limestone Sand Dosing in the Allegheny Plateau
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15. Downstream Upstream
The biologically diverse stream segment is
the component of the watershed, that under
the normal range of conditions of consistent
annual flow, alkaline buffering and stabile
habitat, a diverse community of uni /
semivoltine taxa and other macroinvertebrates,
are established and biologically productive,
providing the building blocks of aquatic ecologic
systems.
Diverse community
of long-lived
macroinvertebrates
Biologically Diverse Biologically Variable Upland Spring
Stream Segment Stream Segment and Seeps