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  • All fields: Freshwater fishes
(57 results)



Display: 20

    • Bull trout: salvelinus confluentus

    • Fishes; Freshwater fishes; Threatened species;
    • This fact sheet describes the bull trout. Differences between bull trout and other salmonids, particularly Dolly Varden are explained. It also briefly describes the fish's breeding and feeding habits, the water conditions it prefers, and the...
    • Fisherman teaches a child about fish handling

    • Adults; Youth; Wildlife refuges; Connecting people with nature; Fishing; Fishes; Freshwater fishes;
    • This is a picture of a man showing a child how to properly hold a fish. Alaska is a land of awe-inspiring beauty and fish and wildlife spectacles, and the Kenai National Wildlife Refuge is a microcosm of all this wonderful state has to offer.
    • Small girl holding a fish

    • Youth; Wildlife refuges; Connecting people with nature; Fishing; Fishes; Freshwater fishes;
    • This is a picture of a child holding a fish in her hands. Alaska is a land of awe-inspiring beauty and fish and wildlife spectacles, and the Kenai National Wildlife Refuge is a microcosm of all this wonderful state has to offer.
    • Father and son reeling in a big fish!

    • Adults; Youth; Wildlife refuges; Connecting people with nature; Fishing; Fishes; Freshwater fishes;
    • Picture is of a father and son bank fishing and reeling in a big fish at Kenai National Wildlife Refuge. Alaska is a land of awe-inspiring beauty and fish and wildlife spectacles, and the Kenai National Wildlife Refuge is a microcosm of all this...
    • Bluegill

    • Underwater photography;fishes; Freshwater fishes;
    • Underwater image of a fish
    • Atlantic Salmon Parr

    • Fish hatcheries; Anadromous species; Captive breeding; Endangered and/or Threatened species;Fisheries management; Fishes; Freshwater fishes; Wildlife restoration; Wildlife management;
    • An Atlantic salmon parr of the Machias River in eastern Maine. Atlantic salmon of the Gulf of Maine Distinct Population Segment (DPS) were listed in an endangered status under the protection of the Endangered Species Act in December 2000. This...
    • Brook trout

    • Aquatic animals; Aquatic environments; Fishes; Freshwater fishes;
    • Brook trout swims in native stream.
    • Fish and Wildlife Service employee weighing lake sturgeon

    • Fisheries management; Fishes; Freshwater fishes;
    • Henry Quinlan, Service Fisheries biologist weighs a lake sturgeon along the Bad River in Wisconsin. This fish species is an important biological component of the Great Lakes fish community. By the early 1900's many populations of lake sturgeon...
    • Introduction To Salmonid Diseases

    • Videography;Fishes;Freshwater fishes;diseases;fish health; Fish management;
    • The video is divided into sections on Basic Methods,Bacteriology, Virology, and Parasitology. In each section, you will see - demonstrations of the procedures which have been described in the course text, either as part of the chapter or as an...
    • Toxicity of 22 therapeutic compounds to six fishes

    • Document; Freshwater fishes; Mollusks; Biologists (USFWS); Biological control; Fires; Fisheries management;
    • First work: Of 22 therapeutic chemicals (18 parasiticides and 4 oral bacteriostats) tested by bioassays, 16 were toxic to fish and 6 were not. Second work: Bayer 73, a molluscicide sold commercially as Bayluscide, is highly toxic to 18 species of...
    • Potential contaminant sources in the Tualatin River watershed

    • Maps; Mapping; GIS; Geospatial; Agriculture; Amphibians; Anadromous species; Aquatic animals; Aquatic birds; Aquatic environments; Aquatic plants; Birds; Chemical industry; City environments; Environmental quality; Farms and farming; Fisheries...
    • The Tualatin River watershed, which contains the U.S. Fish and Wildlife Service Tualatin River National Wildlife Refuge, is a mix of urban, industrial, and rural land use. This map is intended to show the intersection of potential contaminant...
    • Bull Trout

    • Endangered and/or Threatened species; Fishes; Rivers and streams; Freshwater fishes;
    • Threatened Bull Trout
    • Juvenile Bull trout

    • Endangered and/or Threatened species; Fishes; Rivers and streams; Freshwater fishes;
    • A juvenile Bull trout resting underwater.

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