Freshwater Fish photos


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Longear sunfish.  Male longear sunfishes, which are larger and more colorful than the females, build nests, using their tails to carve pits out of gravel where the females can lay their eggs.  The males then guard the nest until the eggs have hatched and the young fish are large enough to leave, Lepomis megalotis Banded rainbowfish.  The banded rainbowfish, from the Goyder River in Australias Northwest Territory, is evolving into a separate species (from other rainbowfishes), has assumed a narrow range and has developed a unique coloration, Melanotaenia trifasciata Altum angelfish, Pterophyllum altum Butterfly goodeid, Ameca splendens Electric eel.  Like other members of the South American knifefish family, the electric eel relies on electrolocation to navigate in find food in murky water.  However, its electric organs are more powerful than its relatives, allowing it to produce sufficiently high voltage pulses to stun predators and prey, Electrophorus electricus African lungfish, Protopterus annectens African lungfish, Protopterus annectens African lungfish, Protopterus annectens African lungfish, Protopterus annectens African lungfish, Protopterus annectens African lungfish, Protopterus annectens African lungfish, Protopterus annectens Bumphead cichlid, found only in Lake Tanganyika, Africa, Cyphotilapia frontosa Unidentified African cichlid Freshwater stingray, eyes and gill opening, Potomotrygon motoro Golden trout, Oncorhynchus aguabonita Red piranha, a fierce predatory freshwater fish native to South American rivers.  Its reputation for deadly attacks is legend, Pygocentrus nattereri Red piranha, a fierce predatory freshwater fish native to South American rivers.  Its reputation for deadly attacks is legend, Pygocentrus nattereri Red piranha, a fierce predatory freshwater fish native to South American rivers.  Its reputation for deadly attacks is legend, Pygocentrus nattereri Red piranha, a fierce predatory freshwater fish native to South American rivers.  Its reputation for deadly attacks is legend, Pygocentrus nattereri Silver arowana, Osteoglossum bicirrhosum Silver arowana, Osteoglossum bicirrhosum Silver arowana, Osteoglossum bicirrhosum Spotted gar, Lepisosteus oculatus Spotted gar, Lepisosteus oculatus Spotted gar, Lepisosteus oculatus Spotted gar, Lepisosteus oculatus Spotted gar, Lepisosteus oculatus Spotted gar, Lepisosteus oculatus Spotted gar, Lepisosteus oculatus Spotted gar, Lepisosteus oculatus Four-eyed fish, found in the Amazon River delta of South America.  The name four-eyed fish is actually a misnomer.  It has only two eyes, but both are divided into aerial and aquatic parts.  The two retinal regions of each eye, working in concert with two different curvatures of the eyeball above and below water to account for the difference in light refractivity for air and water, allow this amazing fish to see clearly above and below the water surface simultaneously, Anableps anableps Four-eyed fish, found in the Amazon River delta of South America.  The name four-eyed fish is actually a misnomer.  It has only two eyes, but both are divided into aerial and aquatic parts.  The two retinal regions of each eye, working in concert with two different curvatures of the eyeball above and below water to account for the difference in light refractivity for air and water, allow this amazing fish to see clearly above and below the water surface simultaneously, Anableps anableps Four-eyed fish, found in the Amazon River delta of South America.  The name four-eyed fish is actually a misnomer.  It has only two eyes, but both are divided into aerial and aquatic parts.  The two retinal regions of each eye, working in concert with two different curvatures of the eyeball above and below water to account for the difference in light refractivity for air and water, allow this amazing fish to see clearly above and below the water surface simultaneously, Anableps anableps Four-eyed fish, found in the Amazon River delta of South America.  The name four-eyed fish is actually a misnomer.  It has only two eyes, but both are divided into aerial and aquatic parts.  The two retinal regions of each eye, working in concert with two different curvatures of the eyeball above and below water to account for the difference in light refractivity for air and water, allow this amazing fish to see clearly above and below the water surface simultaneously, Anableps anableps Four-eyed fish, found in the Amazon River delta of South America.  The name four-eyed fish is actually a misnomer.  It has only two eyes, but both are divided into aerial and aquatic parts.  The two retinal regions of each eye, working in concert with two different curvatures of the eyeball above and below water to account for the difference in light refractivity for air and water, allow this amazing fish to see clearly above and below the water surface simultaneously, Anableps anableps Lyretail cichlid, Neolamprologus brichardi Lyretail cichlid, Neolamprologus brichardi Unidentified African cichlid fish Unidentified African cichlid fish Unidentified African cichlid fish Unidentified African cichlid fish Unidentified African cichlid fish Unidentified African cichlid fish Golden trout, Oncorhynchus aguabonita Golden trout, Oncorhynchus aguabonita Bichir, Polypterus Headstander, Leporinus affinis Headstander, Leporinus affinis Headstander, Leporinus affinis   more ...

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Updated: December 5, 2020