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Display: 20

    • Harvesting eggs from female Chinook

    • Fish hatcheries; Fisheries management; Fishes; Employees (USFWS);
    • Harvesting eggs from a female Chinook at the Carson National Fish Hatchery. Each female has between 3,800-4000 eggs.
    • FWS employee rinses eggs

    • Fish hatcheries; Fisheries management; Fishes; Employees (USFWS); Service patch; Uniforms
    • A FWS employee rinses eggs at the Carson National Fish Hatchery. Rinsing the eggs aids in fertilization.
    • Rinsing Eggs

    • Fish hatcheries; Fisheries management; Fishes; Employees (USFWS);
    • Rinsing eggs at the Carson National Fish Hatchery. Rinsing helps fertilization occur.
    • Rinsing Eggs

    • Fish hatcheries; Fisheries management; Fishes; Employees (USFWS); service patch; uniforms;
    • Rinsing eggs at the Carson National Fish Hatchery. Rinsing helps fertilization occur.
    • Sign Advising Against Feeding the Wildlife

    • Invasive species; Signs; Wildlife refuges; Wildlife management; Wildlife impacts; Mammals; Rodents; Aquatic animals;
    • A sign on the Tualatin River National Wildlife Refuge advising visitors not to feed the wildlife; including the nutria.
    • Nutria habitat

    • Ponds; Wetlands; Invasive species; Mammals; Rodents;
    • A typical nutria habitat at the Tualatin River National Wildlife Refuge.
    • Tagging Nutria

    • Wildlife management; Wildlife refuges; Mammals; Rodents; Invasive species;
    • A collar is successfully put on a nutria on the Tuatalin River National Wildlife Refuge.
    • Nutria

    • Mammals; Rodents; Invasive species; Aquatic animals;
    • Nutria is an invasive species brought to the U.S. from south America by trappers who thought to capitalize on the sale of their fur. The species has taken over rivers and lakes causing lots of trouble and habitat damage. US Fish and Wildlife...
    • Nutria health exam

    • Aquatic animals; Invasive species; Mammals; Rodents; Wildlife management; Trapping; Tagging; Biologists (USFWS);
    • A nutria is examined before being tagged. Tagging the animals will help biologists to better understand nutria and prevent their spreading.
    • Collar Tag for Nutria

    • Aquatic animals; Invasive species; Mammals; Rodents; Wildlife management; Trapping; Tagging;
    • A collar tag to be put on a nutria. It's designed stretch so it can be put on snugly and a nutria will neither get a limb stuck inside nor have trouble breathing. Tagging the animals will help biologists to better understand the nutria's habits and...
    • Nutria is released Back Into the Water

    • Aquatic animals; Invasive species; Mammals; Rodents; Wildlife management; Trapping; Tagging;
    • The tagged nutria is released back into the water. Tagging the animals will help biologists to better understand the habits of nutria and prevent their spreading.
    • Trapped Nutria

    • Aquatic animals; Invasive species; Mammals; Rodents; Wildlife management; Trapping; Tagging;
    • These nutria were safely trapped the night before and will be tagged to learn more about their habits.
    • Weighing Caged Nutria

    • Aquatic animals; Invasive species; Mammals; Rodents; Wildlife management; Trapping; Tagging; Biologists (USFWS);
    • Every nutria is weighed before tagging. Tagging the animals will help biologists to better understand the habits of nutria and prevent their spreading
    • Nutria health Exam

    • Aquatic animals; Invasive species; Mammals; Rodents; Wildlife management; Trapping; Tagging;
    • A nutria is given a health exam before being tagged. Tagging the animals will help biologists to better understand nutria and prevent their spreading.
    • Tagged Nutria

    • Aquatic animals; Invasive species; Mammals; Rodents; Wildlife management; Trapping; Tagging;
    • A collar is successfully attached to the nutria. Tagging the animals will help biologists to better understand the nutria and to prevent their spreading.
    • Nutria tags are prepared

    • Aquatic animals; Invasive species; Mammals; Rodents; Wildlife management; Trapping; Tagging; Biologists (USFWS);
    • Biologists prepare a tag for a nutria. The animals are trapped in order to tag them to better understand the habits of nutria and to prevent overpopulation.
    • Tagging Nutria with Radio Telemetry Devices

    • Aquatic animals; Invasive species; Mammals; Rodents; Wildlife management; Trapping; Tagging; Biologists (USFWS);
    • The U.S. Fish and Wildlife Service does studies to find out how these animals affect habitat and other species. Biologists adjust the collar on this nutria prior to releasing him.
    • Sample Testing of Spawned Salmon

    • Fish hatcheries; Fisheries management; Fishes; Employees (USFWS); Biologists (USFWS); Work of the Service;
    • Scale and genetic testing are performed on some of the fish after they have donated to the spawning process.
    • Spawning Room

    • Fish hatcheries; Fisheries management; Fishes; Employees (USFWS); Biologists (USFWS); Work of the Service;
    • The spawning room at the Spring Creek National Fish Hatchery.

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