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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.
Leafy Seadragon, Phycodurus eques, from  Western Australia.
Trichopodus pectoralis,Colorful freshwater fish and food that tastes good
Tropical fish swimming in the aquarium
Atlantic Cod -  Gadus morhua
Tropical fish swimming through the open water over coral reef
Neptune grass or Mediterranean tapeweed (Posidonia oceanica) undersea, Aegean Sea, Greece, Halkidiki
The Mediterranean seagrass (Posidonia oceanica) and the invasive red seaweed (Asparagopsis armata) in La Ciotat (South of France).
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
The Arctic grayling (Thymallus arcticus) is a species of freshwater fish in the salmon family Salmonidae. T. arcticus is widespread throughout the Arctic and Pacific drainages in Canada, Alaska, and Siberia, as well as the upper Missouri River drainage in Montana.  Wyoming.
These fish inhabit the waters of North America. Elongated body and long, dotted with rare and very sharp teeth mouth. It is found in freshwater ponds and reaches enormous size (2.5 - 3 meters) and weight over 100 kg.
Red tailed catfish
Alive sturgeon in aquarium
Flower Cardinalfish Ostorhinchus fleurieu occurs in the tropical Indo-West Pacific from the Red Sea, the Persian Gulf, the Gulf of Oman and scattered localities in East Africa to Seychelles, India, Sri Lanka, the Indo-Malayan region, and Hong Kong; south to Australia; east to Fiji in a depth range from 1-97m ( usually 1-37m), max. length 14.2cm. The species is common in shallow coastal reefs with moderate currents, also in tidal channels of estuaries. Adults are usually in small schools comprising pairs. The mouthbrooders form distinct pairs during courtship and spawning. \nBelow there are two Spotted-gill Cardinalfishes Ostorhinchus chrysopomus. The species occurs in the tropical Indo-West Pacific from the Indo-Malay Archipelago to New Guinea and Solomon Islands in a depth range from 2-25m, max. length 10cm. \nTriton Bay, Kaimana Regency, West Papua Province, Indonesia, \n3°51'48.03 S 133°55'48.96 E at 6m depth by night
Roach fish. Big alive european roach isolated on white background
The island of Oahu, in the state of Hawaii, from old camera film in 1987.
European seabass (Dicentrarchus labrax), also known as the Mediterranean seabass.
Chiton, Tripoplax regularis. on a rock at Salt Point State Park in Sonoma County, California.
amazing inhabitants of the microworld under a microscope
Carp tail close-up isolated on white background
Aulonocara cichlid red-shouldered peacock. Aulonocara Hansbaenschi.
Aquatic (fresh water) nematode living in pond water among cyanobacteria. Live specimen. Wet mount, 10X objective, transmitted brightfield illumination.
Sweetlips schooling on the coral reef at the Great Barrier Reef Australia
Channa maculata swimming in fish tank. An omnivorous fish that lives in the Mekong Delta is used to feed farmers during floods
Underwater view of piraputanga fish swimming in river, in region of Nobres, MT, Brazil
Golden Damsel Amblyglyphidodon aureus occurs in the tropical Western Pacific from Andaman Sea and Christmas Island in the Eastern Indian Ocean to Fiji, north to the Ryukyu Islands, south to Rowly Shoals and New Caledonia in a depth range from 3-45m, max. length 13cm.\nJuveniles in small groups are often found among large sea fans. Adults occur in steep outer reef, occasionally in deep lagoons and along channel walls, usually in current prone habitats and where there are abundant gorgonian and long sea-whip corals on which they lay and guard eggs. The species feeds on zooplankton. \nMost of the time, a fish's behavior depends on its species. From time to time it is possible to meet exceptions, like this specimen, a very curious character, not shy at all, who came back looking at the camera many times.\nTriton Bay, West Papua Province, Indonesia, \n3°54'52.0617 S 134°7'21.3867 E at 9m depth
Atlantic cod (Gadus morhua). Marine fish.
Tropical fish swimming in the aquarium
Underwater seabed with black sea rod coral and tropical fish in the Caribbean sea, Mayan Riviera, Mexico
Batanta island, Raja Ampat, West Papoua, Indonesia
Free Images: "bestof:Plectrogenium nanum.jpg Plectrogenium nanum The deep-sea fishes of the Hawaiian Islands Gilbert Charles Henry 1859-1928; Jordan David Starr 1851-1931 http //www"
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