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  • All fields: population
(77 results)



Display: 20

    • This fish is trouble!

    • Adults; Aquatic environments; Biologists (USFWS); Boating; Boats; Ecosystem recovery; Emblems; Employees (USFWS); Environmental quality; Fishes; Fishing; Habitat conservation; Habitat fragmentation; Habitat restoration; Management; Personnel;...
    • A Big Muddy National Wildlife Refuge employee holds an Asian carp, (Invasive species), for the camera.
    • The ones that did not get away

    • Adults; Aquatic environments; Biologists (USFWS); Boating; Boats; Ecosystem recovery; Emblems; Employees (USFWS); Environmental quality; Fishes; Fishing; Habitat conservation; Habitat fragmentation; Habitat restoration; Management; Personnel;...
    • Big Muddy National Wildlife Refuge employees hold an Asian carp, (Invasive species), for the camera.
    • The fish are jumping

    • Adults; Aquatic environments; Biologists (USFWS); Boating; Boats; Ecosystem recovery; Emblems; Employees (USFWS); Environmental quality; Fishes; Fishing; Habitat conservation; Habitat fragmentation; Habitat restoration; Management; Personnel;...
    • These Big Muddy National Wildlife Refuge employees electrofish for the Asian carp, (Invasive species).
    • Tree catches fish

    • Adults; Aquatic environments; Biologists (USFWS); Boating; Boats; Ecosystem recovery; Emblems; Employees (USFWS); Environmental quality; Fishes; Fishing; Habitat conservation; Habitat fragmentation; Habitat restoration; Management; Personnel;...
    • This Asian carp, (Invasive species), jumps up to the trees to escape the long arm of the biologists.
    • Fish flying in formation

    • Adults; Aquatic environments; Biologists (USFWS); Boating; Boats; Ecosystem recovery; Employees (USFWS); Fishes; Fishing; Personnel; Population control; Resource management; Service patch; Uniforms; Wildlife refuges; Work of the Service; Invasive...
    • These Asian carp seem to be flying in formation as they jump out of the water to flee from the electrofishing.
    • Aleutian Cacklling Goose Capture and Translocation,1978 - 1991 (Album)

    • AMNWR; Alaska Maritime Wildlife Refuge; Endangered species; Aleutian Cackling Goose; Aleutian Canada Goose; Biological research; Buldir Island; Aleutian Islands; Employees (USFWS)
    • AMNWR biologists worked over an extended period to recover the population of aleutian Cackling goose from endangered to its delisting in 2001. This album pictures the landscape, some of the hardships and activities of these hardy biologists
    • Bighorn sheep population management

    • Aviation; Mammals; Partnerships; Relocation; Resource management; Tagging; Volunteers; Wildlife management; Wildlife restoration;
    • Nevada Department of Wildlife biologists and volunteers working to capture and relocate bighorn sheep in the Muddy Mountains to enhance populations in the Meadow Valley area of Nevada.
    • Wide shot of buffle grass

    • Biological control; Coastal environments; Coastal restoration; Coastal zone management; Ecosystem recovery; Emblems; Employees (USFWS); Grasses; Habitat conservation; Habitat fragmentation; Habitat restoration; Invasive species; Landscape...
    • U.S. Fish and Wildlife Service employee inspects invasive species, Buffle Grass.
    •  Buffle Grass

    • Biological control; Coastal environments; Coastal restoration; Coastal zone management; Ecosystem recovery; Emblems; Employees (USFWS); Grasses; Habitat conservation; Habitat fragmentation; Habitat restoration; Invasive species; Landscape...
    • U.S. Fish and Wildlife Service employee inspects invasive species, Buffle Grass.
    • Black-footed ferret

    • Biologists (USFWS); Captive breeding; Employees (USFWS); Endangered species; Equipment; Human impacts; Mammals; Management; Population control; Reintroduction; Trapping; Wildlife management; Wildlife restoration;
    • Fish and Wildlife Service worker at night holding live trap with ferret inside getting ready to release into research area. For more information on the listing status and fact sheets of black-footed ferrets visit...
    • Biologist conducting a fish population survey

    • Biologists (USFWS); Fishes; Lakes; Grants; Sport fishing; Surveying;
    • Alpine lake fish survey funded as part of Wyoming Game and Fish Department's statewide Sport Fish Restoration grant program
    • Recovery Champion Sandy Vissman

    • Birds; Employees (USFWS);
    • The Pacific Southwest Region of the U.S. Fish and Wildlife Service has announced their three awardees of the agency’s 2010 Recovery Champion Award. Service employee Sandy Vissman was selected for her work as lead biologist with the San Clemente...
    • Whooping Crane

    • Birds; Endangered species;
    • A Whooping Crane photographed at the International Crane Foundation located in Barbaboo, Wisconsin. The Whooping Crane is an endangered species of which an estimated population of 383 continue to exist in the wild. The Whooping Crane occurs only in...
    • Whooping Crane

    • Birds; Endangered species;
    • A close-up view of a Whooping Crane photographed at the International Crane Foundation located in Barbaboo, Wisconsin. The Whooping Crane is an endangered species of which an estimated population of 383 continue to exist in the wild. The Whooping...

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