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    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
    Man holding fresh caught mullet snapper on boat — Stock Photo
    Man holding fresh caught mullet snapper on boat
    Gastrotrich eggs. Coloured scanning electron micrograph (SEM) of a Chaetonotus sp. gastrotrich eggs. Gastrotrichs are microscopic, worm-like animals found in both freshwater and marine habitats — Stock Photo
    Gastrotrich eggs. Coloured scanning electron micrograph (SEM) of a Chaetonotus sp. gastrotrich eggs. Gastrotrichs are microscopic, worm-like animals found in both freshwater and marine habitats
    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
    Cooked freshwater crayfish — Stock Photo
    Cooked freshwater crayfish
    Fresh carp in a dish with lemon and lime — Stock Photo
    Fresh carp in a dish with lemon and lime
    Trout with carrots and asparagus — Stock Photo
    Trout with carrots and asparagus
    Pills and glass of water on white background. — Stock Photo
    Pills and glass of water on white background.
    Pile Of Raw Shrimps, full frame — Stock Photo
    Pile Of Raw Shrimps, full frame
    Red-bellied Cooter turtle swimming to surface — Stock Photo
    Red-bellied Cooter turtle swimming to surface
    Siamese Fighting Fish — Stock Photo
    Siamese Fighting Fish
    West Indian manatee — Stock Photo
    West Indian manatee
    Freshwater crayfish, close-up — Stock Photo
    Freshwater crayfish, close-up
    Side view of woman fly fishing while standing on rock at Roaring Fork River — Stock Photo
    Side view of woman fly fishing while standing on rock at Roaring Fork River
    Whooper swans on frozen lake in Hokkaido. — Stock Photo
    Whooper swans on frozen lake in Hokkaido.
    Fisherman standing with rod and balancing on rock at lake — Stock Photo
    Fisherman standing with rod and balancing on rock at lake
    Top view of freshwater crayfish in aluminium tray — Stock Photo
    Top view of freshwater crayfish in aluminium tray
    Side view of fisherman throwing tackle to river. — Stock Photo
    Side view of fisherman throwing tackle to river.
    Man holding caught king salmon fish on boat — Stock Photo
    Man holding caught king salmon fish on boat
    Couple fishing on a riverbank — Stock Photo
    Couple fishing on a riverbank
    A Southern Leopard Frog — Stock Photo
    A Southern Leopard Frog
    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
    Smoked trout and dill pt with vegetable sticks — Stock Photo
    Smoked trout and dill pt with vegetable sticks
    Grilled rainbow trouts close-up view — Stock Photo
    Grilled rainbow trouts close-up view
    Zebrafish young. Coloured scanning electron micrograph (SEM) of newly-hatched zebrafish (Danio rerio) young or fry. These fish are used to study embryonic development. The eyes (red) are seen in the heads. Zebrafish eggs are transparent — Stock Photo
    Zebrafish young. Coloured scanning electron micrograph (SEM) of newly-hatched zebrafish (Danio rerio) young or fry. These fish are used to study embryonic development. The eyes (red) are seen in the heads. Zebrafish eggs are transparent
    Pouring water into glass from jug on plain background. — Stock Photo
    Pouring water into glass from jug on plain background.
    Side view of fisher man standing in river with rod — Stock Photo
    Side view of fisher man standing in river with rod
    Zebrafish young. Coloured scanning electron micrograph (SEM) of newly-hatched zebrafish (Danio rerio) young or fry. These fish are used to study embryonic development. The eyes (blue) are seen in the heads. Zebrafish eggs are transparent — Stock Photo
    Zebrafish young. Coloured scanning electron micrograph (SEM) of newly-hatched zebrafish (Danio rerio) young or fry. These fish are used to study embryonic development. The eyes (blue) are seen in the heads. Zebrafish eggs are transparent
    Girl holding a small terrapin. — Stock Photo
    Girl holding a small terrapin.
    Children holding terrapin turtle. — Stock Photo
    Children holding terrapin turtle.
    Side view of fisherman throwing tackle to river. — Stock Photo
    Side view of fisherman throwing tackle to river.
    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
    Side view of man standing in river and fishing with rod — Stock Photo
    Side view of man standing in river and fishing with rod
    Tail fins of different freshwater fish — Stock Photo
    Tail fins of different freshwater fish
    Baked carp with potato — Stock Photo
    Baked carp with potato
    Fisherman standing river by shore and fishing — Stock Photo
    Fisherman standing river by shore and fishing
    Side view of man standing in river and fishing with rod at autumn day — Stock Photo
    Side view of man standing in river and fishing with rod at autumn day
    Man holding fresh caught blue fish — Stock Photo
    Man holding fresh caught blue fish
    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
    Close-up shot of delicious Boiled Crawfish — Stock Photo
    Close-up shot of delicious Boiled Crawfish
    Freshwater crayfish on plate — Stock Photo
    Freshwater crayfish on plate
    Manatee swimming upside down — Stock Photo
    Manatee swimming upside down
    Coloured scanning electron micrograph (SEM) of a tardigrade (Macrobiotus sp.), or water bear. — Stock Photo
    Coloured scanning electron micrograph (SEM) of a tardigrade (Macrobiotus sp.), or water bear.
    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.
    Man holding a fresh caught yellowfin tuna — Stock Photo
    Man holding a fresh caught yellowfin tuna
    Paramecium ciliate protozoan — Stock Photo
    Paramecium ciliate protozoan
    Crop hands adjusting fishing rod at river — Stock Photo
    Crop hands adjusting fishing rod at river
    Detail of calm water of a lake, ripples on the water — Stock Photo
    Detail of calm water of a lake, ripples on the water
    Coloured scanning electron micrograph of tardigrade water bear. — Stock Photo
    Coloured scanning electron micrograph of tardigrade water bear.
    Alligator gars swimming in opposite directions — Stock Photo
    Alligator gars swimming in opposite directions
    Fishing gear on pebbles — Stock Photo
    Fishing gear on pebbles
    Beluga whales scratching skin on gravel bottom of freshwater delta, Somerset Island, Nunavut, Canada — Stock Photo
    Beluga whales scratching skin on gravel bottom of freshwater delta, Somerset Island, Nunavut, Canada
    Closeup view of cooked freshwater crayfish with ladle on blue surface — Stock Photo
    Closeup view of cooked freshwater crayfish with ladle on blue surface
    Whole fresh catfish — Stock Photo
    Whole fresh catfish
    Freshwater crayfish on plate — Stock Photo
    Freshwater crayfish on plate
    Rear view of fisher standing on shore and looking at river — Stock Photo
    Rear view of fisher standing on shore and looking at river
    Moose with calf in marsh water of Algonquin Provincial Park, Ontario, Canada. — Stock Photo
    Moose with calf in marsh water of Algonquin Provincial Park, Ontario, Canada.
    Colorful lily pads growing in freshwater lake — Stock Photo
    Colorful lily pads growing in freshwater lake
    Man flyfishing from a riverbank. — Stock Photo
    Man flyfishing from a riverbank.
    Centric fossil diatom frustule — Stock Photo
    Centric fossil diatom frustule