Freshwater fishes; Fishes; Fisheries management; Fish hatcheries;
The Circulars are technical publications of general interest intended to aid conservation and management. Publications that review in considerable detail and at a high technical level certain broad areas of research appear in this series.
Wildlife refuges; Wildlife management; Wildlife impacts; Pesticides; Birds; Chemical industry;
Pesticide research at Patuxent had two principle objectives. One was to appraise new or accepted chemicals to which wildlife might be exposed. The other objective was to study major problems that arose from field applications of pesticides. ...