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  • All fields: Spawning
(213 results)



Display: 20

    • Aquatic Insect

    • Fish hatcheries; Fisheries management; Fishes; Biologists (USFWS); Employees (USFWS); Work of the Service; Tagging; Threatened species; Monitoring;
    • Biologists find other aquatic creatures while tagging steelhead in Eagle Creek. Biologists use this tracking information to see if the hatchery fish that are spawning here are affecting the survival and productivity of the wild fish.
    • Atlantic Salmon Adults

    • Captive breeding; Fishes; Rivers and streams;
    • Adult Atlantic salmon of the Penobscot River, ME, in their holding pool before artificial spawning
    • Atlantic Salmon Male

    • Fishes; Rivers and streams;
    • Atlantic salmon male displaying kype, a characteristic of males during spawning season which is used in battle with rival mates.
    • Atlantic salmon smolts

    • Aquaculture; Anadromous species; Endangered species; Fishes; Fisheries management;
    • Atlantic salmon spend the first two years of life in the fresh water habitats of their native stream (occasionally three, depending upon food availability). At two years of age, the fish undergo the process of smoltification, resulting in changes...
    • Ave Thayer oral history transcript

    • Biography; Employees (USFWS); History; Hunting; Law enforcement; Trapping; Surveying; Aircraft; Aviation; Mammals; Management; Habitat conservation; Rivers and streams; Wilderness;
    • Ave Thayer oral history interview as conducted by Mark Madison. As well as working at Arctic National Wildlife Refuge and Kenai Moose National Wildlife Refuge, Mr. Thayer also worked in Anchorage under the Alaska Game Commission, and in McGrath,...
    • Becherof and Alaska Peninsula National Wildlife Refuges

    • videography; U.S. Fish and Wildlife Service; wildlife refuges; wildlife conservation
    • An overview of the 5.5 million acres that encompass these two spectacular refuges. Becharof National Wildlife Refuge lies between Katmai National Park and Preserve and Alaska Peninsula Refuge. This video production contains music that has been...
    • Bull Trout

    • Fishes; Threatened species;
    • In Bighorn (Ram) Creek, in the Wigwam River drainage of British Columbia, the Threatened bull trout complete their 50-mile cross-border International spawning migration from Lake Koocanusa in the Kootenai River drainage in Montana. As many as five...
    • Bull trout

    • Fishes; Threatened species;
    • In Bighorn (Ram) Creek, in the Wigwam River drainage of British Columbia, the threatened bull trout complete their 50-mile cross-border International spawning migration from Lake Koocanusa in the Kootenai River drainage in Montana. As many as five...
    • Bull Trout

    • Fishes; Threatened species;
    • In Bighorn (Ram) Creek, in the Wigwam River drainage of British Columbia, the Threatened bull trout complete their 50-mile cross-border International spawning migration from Lake Koocanusa in the Kootenai River drainage in Montana. As many as five...
    • Bull Trout

    • Fishes; Threatened species;
    • In Bighorn (Ram) Creek, in the Wigwam River drainage of British Columbia, the Threatened bull trout complete their 50-mile cross-border International spawning migration from Lake Koocanusa in the Kootenai River drainage in Montana. As many as five...
    • Bull Trout

    • Fishes; Threatened species;
    • In Bighorn (Ram) Creek, in the Wigwam River drainage of British Columbia, the Threatened bull trout complete their 50-mile cross-border International spawning migration from Lake Koocanusa in the Kootenai River drainage in Montana. As many as five...
    • Bull Trout

    • Fishes; Threatened species;
    • In Bighorn (Ram) Creek, in the Wigwam River drainage of British Columbia, the Threatened bull trout complete their 50-mile cross-border International spawning migration from Lake Koocanusa in the Kootenai River drainage in Montana. As many as five...
    • Bull Trout

    • Fishes; Threatened species;
    • In Bighorn (Ram) Creek, in the Wigwam River drainage of British Columbia, the Threatened bull trout complete their 50-mile cross-border International spawning migration from Lake Koocanusa in the Kootenai River drainage in Montana. As many as five...

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