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    Freshwater single diatom — Stock Photo
    Freshwater single diatom
    Young man at pond — Stock Photo
    Young man at pond
    Side view of fisher fishing in country river — Stock Photo
    Side view of fisher fishing in country river
    Lily pads in shallow freshwater lake — Stock Photo
    Lily pads in shallow freshwater lake
    Loggerhead musk turtle looking up — Stock Photo
    Loggerhead musk turtle looking up
    Man holding a fresh caught striped bass — Stock Photo
    Man holding a fresh caught striped bass
    Wild elk standing in water of Athabasca River, Alberta, Canada. — Stock Photo
    Wild elk standing in water of Athabasca River, Alberta, Canada.
    Salmon trout on kale — Stock Photo
    Salmon trout on kale
    Freshwater crayfish on plate — Stock Photo
    Freshwater crayfish on plate
    Sheepshead and pair of Blue Angelfish — Stock Photo
    Sheepshead and pair of Blue Angelfish
    Man holding fresh caught cubera snapper on boat — Stock Photo
    Man holding fresh caught cubera snapper on boat
    Glass of pure water on plain background. — Stock Photo
    Glass of pure water on plain background.
    Map turtle laying on sandy bottom — Stock Photo
    Map turtle laying on sandy bottom
    Medication and glass of water on pink background. — Stock Photo
    Medication and glass of water on pink background.
    Tail fins of different freshwater fish — Stock Photo
    Tail fins of different freshwater fish
    Freshwater crayfish on plate — Stock Photo
    Freshwater crayfish on plate
    Fisherman standing with rod and balancing on rock at lake — Stock Photo
    Fisherman standing with rod and balancing on rock at lake
    Female fisher with a large fresh catch — Stock Photo
    Female fisher with a large fresh catch
    Man holding fresh caught blue fish — Stock Photo
    Man holding fresh caught blue fish
    Rear view of fisher on boat at sea — Stock Photo
    Rear view of fisher on boat at sea
    Rear view of fisherman with fish on his line — Stock Photo
    Rear view of fisherman with fish on his line
    Side view of man standing by river and fishing with rod on autumn day — Stock Photo
    Side view of man standing by river and fishing with rod on autumn day
    Gang of Largemouth Bass swimming upstream — Stock Photo
    Gang of Largemouth Bass swimming upstream
    A cooked crayfish on a slate surface — Stock Photo
    A cooked crayfish on a slate surface
    Man holding large salmon fish. — Stock Photo
    Man holding large salmon fish.
    Hand holding a fish on nature background — Stock Photo
    Hand holding a fish on nature background
    Medication and glass of water on white background. — Stock Photo
    Medication and glass of water on white background.
    Light micrograph of Hydra, a genus of small, fresh-water animals of the phylum Cnidaria and class Hydrozoa. — Stock Photo
    Light micrograph of Hydra, a genus of small, fresh-water animals of the phylum Cnidaria and class Hydrozoa.
    Freshwater crayfish, close-up — Stock Photo
    Freshwater crayfish, close-up
    Closeup view of cooked freshwater crayfish — Stock Photo
    Closeup view of cooked freshwater crayfish
    Couple flyfishing in a river. — Stock Photo
    Couple flyfishing in a river.
    Inverted image of calm water of a freshwater lake, ripples on the surface — Stock Photo
    Inverted image of calm water of a freshwater lake, ripples on the surface
    Bluegill hovering over green bottom — Stock Photo
    Bluegill hovering over green bottom
    Fresh trout with lime and dill, prepared for baking — Stock Photo
    Fresh trout with lime and dill, prepared for baking
    Manatee in Fanning Springs State Park — Stock Photo
    Manatee in Fanning Springs State Park
    High angle view of man standing in river, holding fish net with trouts. — Stock Photo
    High angle view of man standing in river, holding fish net with trouts.
    Portrait of fisher man with fish at river — Stock Photo
    Portrait of fisher man with fish at river
    Paramecium ciliate protozoan — Stock Photo
    Paramecium ciliate protozoan
    Acanthocystis. Coloured scanning electron micrograph (SEM) of a centrohelid heliozoan with tangential plate-scales and radial spines — Stock Photo
    Acanthocystis. Coloured scanning electron micrograph (SEM) of a centrohelid heliozoan with tangential plate-scales and radial spines
    Boys holding a small turtle. — Stock Photo
    Boys holding a small turtle.
    Coloured scanning electron micrograph of tardigrade water bear. — Stock Photo
    Coloured scanning electron micrograph of tardigrade water bear.
    Medication and glass of water on blue background. — Stock Photo
    Medication and glass of water on blue background.
    Rainbow and Cuernos del Paine at Sunrise, Torres del Paine National Park, Patagonia, Chile — Stock Photo
    Rainbow and Cuernos del Paine at Sunrise, Torres del Paine National Park, Patagonia, Chile
    Pair of juvenile cocoa damselfish — Stock Photo
    Pair of juvenile cocoa damselfish
    Trout in a salt crust — Stock Photo
    Trout in a salt crust
    Top view of plywood box with alive freshwater crayfish — Stock Photo
    Top view of plywood box with alive freshwater crayfish
    Salmon in fish pass tank behind dirty rustic glass pane. — Stock Photo
    Salmon in fish pass tank behind dirty rustic glass pane.
    Freshwater crayfish, close-up — Stock Photo
    Freshwater crayfish, close-up
    Man holding a fresh caught yellowfin tuna — Stock Photo
    Man holding a fresh caught yellowfin tuna
    Crayfish, raw and prepared — Stock Photo
    Crayfish, raw and prepared
    Glass and jug with drinking water on white background. — Stock Photo
    Glass and jug with drinking water on white background.
    Shadow bass swimming in reef — Stock Photo
    Shadow bass swimming in reef
    Man holding a fresh caught striped bass — Stock Photo
    Man holding a fresh caught striped bass
    Fresh pike on a wooden board in hands — Stock Photo
    Fresh pike on a wooden board in hands
    Dark field light micrograph (LM) of freshwater pennate diatoms. — Stock Photo
    Dark field light micrograph (LM) of freshwater pennate diatoms.
    Rear view of fisher fishing with rod at river on sunny day — Stock Photo
    Rear view of fisher fishing with rod at river on sunny day
    Salt water pennate diatom frustule — Stock Photo
    Salt water pennate diatom frustule
    Whole fresh catfish — Stock Photo
    Whole fresh catfish
    Close-up shot of Smoked trout salad — Stock Photo
    Close-up shot of Smoked trout salad
    Lily pads in shallow freshwater lake — Stock Photo
    Lily pads in shallow freshwater lake