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The interesting species of the river

Arapaima

Piranha

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Arapaima

Arapaima

Barred sorubim

Barred sorubim

Redtail catfish

Redtail catfish

Acary avion

Acary avion

Red-bellied Pacu

Red-bellied Pacu

Itaituba freshwater stingray

Itaituba freshwater stingray

Redhump eartheater

Redhump eartheater

Sailfin pimeloid

Sailfin pimeloid

Broadband red headstander

Broadband red headstander

Metallic livebearer

Metallic livebearer

Rosy tetra

Rosy tetra

Emperor tetra

Emperor tetra

Red phantom tetra

Red phantom tetra

Redhook myleus

Redhook myleus

Colombian darter characin

Colombian darter characin

Striped Headstander

Striped Headstander

Winterbottoms headstander

Winterbottoms headstander

Striped headstander

Striped headstander

Darter characine

Darter characine

Equator hero cichlid

Equator hero cichlid

Ecuador Cichlid

Ecuador Cichlid

Meta Cichlid

Meta Cichlid

Red-eye Tetra

Red-eye Tetra

Oscar

Oscar

Cardinal tetra

Cardinal tetra

Common Whiptail Catfish

Common Whiptail Catfish

Amazon sailfin catfish

Amazon sailfin catfish

Sail fin pleco

Sail fin pleco

Blue Phantom Pleco

Blue Phantom Pleco

Redfin rubbernose

Redfin rubbernose

Redfin rubbernose

Redfin rubbernose

Snowball Pleco

Snowball Pleco

Lemon Spotted Green Pleco

Lemon Spotted Green Pleco

Uaru

Uaru

Alligator Pleco

Alligator Pleco

King Tiger Pleco

King Tiger Pleco

Demini Leopard Cactus Pleco

Demini Leopard Cactus Pleco

Gulper Catfish

Gulper Catfish

White spotted Ventuari Pleco

White spotted Ventuari Pleco

Yellow plankton cichlid

Yellow plankton cichlid

Sharkfin characin

Sharkfin characin

Scissortail characin

Scissortail characin

Threestripe pencilfish

Threestripe pencilfish

Brown pencilfish

Brown pencilfish

Colombian wild guppy

Colombian wild guppy

Colombian wild guppy

Colombian wild guppy

Butterfly splitfin

Butterfly splitfin

Butterfly splitfin

Butterfly splitfin

Shampupa Royal Pleco

Shampupa Royal Pleco

Colombian Blue Eyed Pleco

Colombian Blue Eyed Pleco

Huallaga Bristlenose Catfish

Huallaga Bristlenose Catfish

Huallaga Bristlenose Catfish

Huallaga Bristlenose Catfish

Arapaima

Arapaima

Facts

LatinArapaima sp. aff. gigas
Size300 cm
FoodFish and large crustaceans
HabitatRivers
IUCN

Data deficient

Unknown. May be threatened because of overfishing

LocationThe Amazon basin in South America
Map

A scaly giant

The arapaima is clearly distinguishable from the other fish in the aquarium. Its scales are enormous, and they can be up to 6 cm in diameter. Not all fish have scales, but among scaled fish, the arapaima has the largest ones.

Needs oxygen

In the Amazon River, oxygen content is often low. The arapaima breathes through its gills, but it also depends on surface air. The arapaima has no lungs, but it uses its swim bladder to extract oxygen from the air.

All mouth

The arapaima has a large mouth. When it opens its mouth quickly, it creates a partial vacuum that enables it to capture its prey at a long distance by sucking it into its mouth. You can hear a loud splash when the arapaima opens its mouth at the water's surface.

Sponsor of the arapaima


Under the riverbank

River life

The plants in the river

River deep

Armored predators

Conservation of species

California kingsnake

River pool

Archerfish

Endangered species

Lake Tanganyika

Lake Malawi