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A musky (muskellunge), Esox masquinongy, in bar phased coloration is photographed underwater at night in a vegetation bed in a northern Wisconsin lake.
Swimming slowly, a large white sturgeon and salmon cruise the water in the Bonneville Fish Hatchery and Sturgeon Center along Oregon’s Columbia River.
Atlantic Cod -  Gadus morhua
The dugong is a medium-sized marine mammal. It is one of four living species of the order Sirenia, which also includes three species of manatees. It is the only living representative of the once-diverse family Dugongidae; its closest modern relative, Steller's sea cow (Hydrodamalis gigas), was hunted to extinction in the 18th century. The dugong is the only strictly marine herbivorous mammal, as all species of manatee use fresh water to some degree.
American wigeon duck swimming on creek in morning light
Sturgeon fish (fish farming).
giant sturgeon fish underwater
Red-Tail Catfish, phractocephalus hemioliopterus
Pleco catfish albino Bristle-nose pleco gold Ancistrus dolichopterus Plecostomus aquarium fish.
Red tailed catfish
Flathead catfish, isolated on white background
Male Pintail Duck Reflection
Fish bred in captivity to extract caviar and other products in Loja, Spain.
Male northern pintail (Anas acuta) swimming in a lake.
Siberian sturgeon (Acipenser baerii). Wild life animal.
The pintail or northern pintail (Anas acuta) is a duck species with wide geographic distribution that breeds in the northern areas of Europe and across the Palearctic and North America. It is migratory and winters south of its breeding range to the equator. Gray Lodge Wildlife Reserve, California;
shovelnose sturgeon, Scaphirhynchus platorynchus, aquarium image
Glacier Bay National Park and Preserve, Alaska, USA.
Large white fish is swimming in a dark cave. The fish is surrounded by rocks and plants. Scene is mysterious and calm. Big fish gracefully swimming in aquarium water
Underwater large arapaima
A male Northern Pintail Duck is trying to attract the attention of a female duck
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Beluga sturgeon or Huso huso swimming alone
Green winged teal duck drake swimming
Catfish Isolated on white background. 3D render
The pintail or northern pintail (Anas acuta) found in the Gray Lodge Wildlife Area in the Sacramento Valley, Butte County, California. In the wateer swimming with a reflection.
Siberian sturgeon (Acipenser baerii). Wild life animal.
A Gadwall drake on the lake at Gosforth Park Nature Reserve.
Alive sturgeon in the aquarium
Male Wood Duck walking through the grass
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