Intensive studies of stream fish populations in Maine /

Mode of access: Internet.

Habitat structure and fish communities of warmwater streams /

Mode of access: Internet.

Estimate of abundance, harvest, and exploitation of the fish population of Escanaba Lake, Wisconsin, 1946-69 /

Caption title.

Ecological evaluation of a beach nourishment project at Hallandale (Broward County), Florida /

Contract no.: DACW72-77-M-0639 (v.2).

1975 Fisheries survey of Torch Lake, Antrim County /

Caption title.

Biological Stream Characterization (BSC) : a biological assessment of Illinois stream quality /

"IEPA/WPC/89-275"--Cover.

Coastal waterbird colonies, Maine to Virginia, 1984-85 : an update of an atlas based on 1977 data, showing colony locations and species composition at both time periods, with examination of changes in regional populations /

"November 1990."

Managing forests to maintain populations of gray and fox squirrels /

Includes statistical tables and graphs.