USFWS National Digital Library

- Egg Storage
- Fish hatcheries; Fisheries management; Fishes;
- After getting rinsed the eggs are placed in storage containers at the Carson National Fish Hatchery.
- Images
- Carson National Fish Hatchery
- Fish hatcheries; Fisheries management; Fishes;
- Image of Carson National Fish Hatchery where eggs are rinsed and then stored.
- Images
- 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.
- Images
- 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.
- Images
- Bucket of Rinsed Eggs
- Fishes; Fisheries management; Fish hatcheries;
- A bucket of rinsed eggs at the Carson National Fish Hatchery.
- Images
- Rinsing Eggs
- Fish hatcheries; Fisheries management; Fishes; Employees (USFWS);
- Rinsing eggs at the Carson National Fish Hatchery. Rinsing helps fertilization occur.
- Images
- Bucket Tags
- Fish hatcheries; Fisheries management; Fishes;
- Bucket tags used to label buckets at the Carson National Fish Hatchery. Each bucket is numbered and placed in corresponding holding containers.
- Images
- Rinsing Eggs
- Fish hatcheries; Fisheries management; Fishes; Employees (USFWS); service patch; uniforms;
- Rinsing eggs at the Carson National Fish Hatchery. Rinsing helps fertilization occur.
- Images
- Female Chinook at the Carson National Fish Hatchery
- Fish hatcheries; Fisheries management; Fishes; Employees (USFWS);
- Female chinook are rinsed at the Carson National Fish Hatchery
- Images
- Female Chinook at the Carson National Fish Hatchery
- Fish hatcheries; Fisheries management; Fishes; Employees (USFWS);
- Female Chinook lined up at Carson National Fish Hatchery.
- Images
- 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.
- Images
- Nutria habitat
- Ponds; Wetlands; Invasive species; Mammals; Rodents;
- A typical nutria habitat at the Tualatin River National Wildlife Refuge.
- Images
- Nutria Damage on the Tuatalin River National Wildlife Refuge
- Rodents; Mammals; Invasive species; Wildlife impacts; Wildlife refuges; Wildlife management;
- Nutria eat a lot of the bank vegetation and then burrow into it, increasing the erosion of the banks.
- Images
- 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.
- Images
- 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...
- Images
- Caged Nutria is Covered to Keep Animal Calm During Tagging
- Aquatic animals; Invasive species; Mammals; Rodents; Wildlife management; Trapping; Tagging;
- A sheet covers the caged nutria to keep it calm during the tail tagging. Tagging the animals will help biologists to better understand the nutria and prevent their spreading.
- Images
- 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.
- Images
- 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...
- Images
- 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.
- Images
- 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.
- Images