Pelagic gooseneck barnacle (Lepas anatifera) in its aquatic habitatPhoto: Franciscosp2 ยท Image source ยทCC BY-SA 3.0

Animal profile ยท Crustaceans ยท Gooseneck barnacle

Pelagic gooseneck barnacle

Lepas anatifera

The pelagic gooseneck barnacle attaches to floating objects with a flexible stalk. It drifts across the open ocean while extending feathery limbs to catch food.

Not a fish ยท an aquatic neighbor

Water

Saltwater

Open ocean on driftwood, pumice, plastic, ships, and other floating surfaces.

Temperature

Range not established

A dependable species-specific wild temperature range was not established from the reviewed sources, so both values are null.

Size

Capitulum up to about 5 cm (2 in), with stalks up to about 90 cm (35 in)

The stalk can be longer than a ruler

Lifespan

Not established in the wild.

Life expectancy varies with place, conditions, and what scientists have been able to observe.

01 ยท Signature adaptation

What does it do?

Adults are sessile after attaching to a floating surface. Larvae swim freely, drift with currents, and settle only after finding a suitable object.

Its superpowerIts strong natural cement lets it cling to moving floating surfaces.

02 ยท Home coordinates

Where does it live?

Warm and temperate open oceans worldwide.

Regions: Tropical and temperate oceans worldwide

03 ยท The menu

What does it eat?

It extends cirri into currents to filter particles and capture small drifting prey.

Filter-feeder and predator: zooplankton, shrimp, small fish, polyps, detritus.

04 ยท Remember this

Two wow facts

01

Floating neighborhood

It can colonize driftwood, ships, pumice, plastic, and other objects carried by currents.

Sources [2]

02

Long flexible stalk

Its attachment stalk can reach roughly 90 cm while the shell-bearing capitulum remains much smaller.

Sources [1]