Salt marshes, especially the muddy, wet, intertidal portions of them that are described in this report, have often been considered wastelands--areas to be filled to make useful land or to be dredged to make useful water. From the scientific point...
This classification, to be used in a new inventory of wetlands and deepwater habitats of the United
States, is intended to describe ecological tax, arrange them in a system useful to resource managers,
furnish units for mapping, and provide...
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.
This is a status assessment of the double-crested cormorant in North America as of 2001. It includes general information on the bird, biological information and area-specific population information for throughout North America.
This image was taken during the Seabird Marine Mammal Oceanographic Coordinated Investigation (SMMOCI) project. Scenics; Landscapes; Wildlife refuges; Alaska Maritime National Wildlife Refuge; Aleutians; Tiglax