Our animals

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Northern lakes and seas

The ocean

Tropical rivers and lakes

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The Pond

Water lillies

The wide creek

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Water flea

Water flea

European perch

European perch

Alpine bullhead

Alpine bullhead

Three-spined stickleback

Three-spined stickleback

Swan mussel

Swan mussel

Goldfish

Goldfish

Oriental carp

Oriental carp

Belica

Belica

European crayfish

European crayfish

Bitterling

Bitterling

Gudgeon

Gudgeon

Glassworm

Glassworm

Facts

LatinChaoborus flavicans
Size1.6 cm
FoodZooplankton
HabitatLakes and ponds
IUCN

Not evaluated

LocationMajor part of the northern hemisphere
Map

Air bladders in the body

The glassworm is transparent to avoid being eaten. Inside its body, the larva has small air bladders which help it remain motionless in the water.

Eats smaller animals

Even though the glassworm is small, it is a predator which lives off small crustaceans and animal plankton. The antennae on its head are curved and can fold up like claws.

Life cycle of the midge

The glassworm has 4 life stages. It starts as an egg, becomes a larva, then turn into a pupa and finally it turns into a midge. The larva stage is the longest stage and can last from 7 days to several months.

Does not bite and lives for a short time

The adult glassworm is found in large swarms above most lakes and ponds all year round. It has no venomous sting and does bite. The adult life of the midge is very short and only lasts a couple days.


Danish lake

Danish stream

Danish forest lake

Herrings in the Sound

Boulder reef in the Sound

Hideouts of the seabed

Sandy bottom

Eelgrass in the Sound

Faroese bird cliff

Seaotter

Reef in the Pacific Ocean

An ocean of plastic

The coast of the Pacific