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  • All fields: population
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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.
    • Patuxent Science Symposium, 75th Anniversary oral history transcript Part 1 of 4

    • Agriculture; Bird banding; Birds; Biologists (USFWS); Biography; Diseases; Employees (USFWS); Fishes; History; Migration; Migratory birds; Pesticides; Research; Science; Scientific personnel (USFWS); Surveying; Tagging; Waterfowl; Wildlife...
    • This is Part 1 of 4 transcripts from the Patuxent Science Symposium, 75th Anniversary of the Patuxent Science Center. It includes speakers who talk about their time at working at Patuxent and some of the work they did. This transcript includes the...
    • Patuxent Science Symposium, 75th Anniversary oral history transcript Part 4 of 4

    • Agriculture; Bird banding; Birds; Biologists (USFWS); Biography; Diseases; Employees (USFWS); Fishes; History; Migration; Migratory birds; Pesticides; Research; Science; Scientific personnel (USFWS); Surveying; Tagging; Waterfowl; Wildlife...
    • This is Part 4 of 4 transcripts from the Patuxent Science Symposium, 75th Anniversary of the Patuxent Science Center. It includes speakers who talk about their time at working at Patuxent and some of the work they did. This transcript includes the...
    • Patuxent Science Symposium, 75th Anniversary oral history transcript Part 3 of 4

    • Agriculture; Bird banding; Birds; Biologists (USFWS); Biography; Diseases; Employees (USFWS); Fishes; History; Migration; Migratory birds; Pesticides; Research; Science; Scientific personnel (USFWS); Surveying; Tagging; Waterfowl; Wildlife...
    • This is Part 3 of 4 transcripts from the Patuxent Science Symposium, 75th Anniversary of the Patuxent Science Center. It includes speakers who talk about their time at working at Patuxent and some of the work they did. This transcript includes the...
    • Patuxent Science Symposium, 75th Anniversary oral history transcript Part 2 of 4

    • Agriculture; Bird banding; Birds; Biologists (USFWS); Biography; Diseases; Employees (USFWS); Fishes; History; Migration; Migratory birds; Pesticides; Research; Science; Scientific personnel (USFWS); Surveying; Tagging; Waterfowl; Wildlife...
    • This is Part 2 of 4 transcripts from the Patuxent Science Symposium, 75th Anniversary of the Patuxent Science Center. It includes speakers who talk about their time at working at Patuxent and some of the work they did. This transcript includes the...
    • Jim Voelzer oral history transcript

    • Aircraft; Aviation; Biologists (USFWS); Employees (USFWS); Biography; History; Surveying; Management; Migratory birds; Bird banding; Waterfowl;
    • Jim Voelzer oral history transcript as conducted by John Cornely.
    • 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
    • Phil Pister Desert Fishes Council

    • Aquatic animals; Aquatic environments; Environmental education; Fisheries management; Fishes; Fish hatcheries; Habitat conservation; Podcast; Public Lecture;
    • Phil Pister retired in February 1990 following 38 years as a fishery biologist with the California Department of Fish and Game. He studied wildlife conservation and zoology under A. Starker Leopold at the University of California (Berkeley) and...
    • Wyoming toads and cattle: at home on the range

    • Aquatic animals; Biologists (USFWS); Extinctions; Endangered species; Amphibians;
    • Biologists feared that the Wyoming toad was extinct until 1987 when a fisherman discovered a population at Mortenson Lake on Swanson’s land. The discovery created excitement about a chance to save the species and its habitat, and it led Swanson...

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