Freshwater fishes

Freshwater fishes

Many freshwater fishes are also popular as food.

Biology

Keywords

fish, freshwater, fish species, bream, pike, eel, catfish, Prussian carp, zander, trout, common carp, fishing, dorsal fin, pelvic fin, caudal fin, gill, scale, pectoral fin, plankton-eating, mud-dwelling, predator, benthic, river, lake, animal, vertebrates, biology

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Common carp

Freshwater fish used as food in many parts of the world.

Sharks

A group of fish characterised by a cartilaginous skeleton, well-known species include the great white shark and the great hammerhead shark.

Anglerfish

This bizarre-looking fish uses its bioluminescent lure to catch its prey. The animation explains how it works.

European crayfish

A type of large freshwater crayfish widespread in Europe.

Freshwater pearl mussel

A species of mollusc widespread in freshwaters.

How do fish breathe?

Blood vessels in fishes' gills absorb oxygen and release carbon dioxide.

Niche

In ecology, a niche is a term describing the way of life of a species.

Prehistoric armoured fishes

Extinct species of fish which had thick ´armour´ protecting the head.

Reed and bulrush

Cosmopolitan monocots inhabiting watersides.

West Indian Ocean coelacanth

Living fossil, important stage in the evolution of tetrapods.

Edible frog

This animation demonstrates the anatomy of amphibians through the example of a common species of frogs.

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