Goose bump

Goose Barnacle (also known as Goose Neck Barnacle or Stalked Barnacle) is a type of marine crustacean in the order Pedunculata. They are known for their distinctive appearance, which includes a long, flexible stalk (or peduncle) and a hard, calcified shell.

Taxonomy

Goose Barnacles belong to the order Pedunculata, which is one of the two main groups of barnacles. The other group is the Sessilia, which includes the acorn barnacles. The order Pedunculata is further divided into several families, including the Lepadidae, which contains the majority of goose barnacle species.

Description

Goose Barnacles have a unique appearance among crustaceans. They have a long, flexible stalk, known as a peduncle, which is used to attach to a variety of surfaces in the ocean. The peduncle is muscular and can be contracted to move the barnacle or to resist the force of waves. At the end of the peduncle is the capitulum, which is covered in plates of calcium carbonate to form a hard shell. Inside the shell, the barnacle has a set of feathery appendages, called cirri, which it uses to filter food from the water.

Distribution and Habitat

Goose Barnacles are found in oceans all over the world. They are particularly common in the Atlantic Ocean, but can also be found in the Pacific Ocean and the Indian Ocean. They attach themselves to a variety of surfaces, including rocks, ship hulls, and even floating debris. Some species are found in the intertidal zone, while others live in deep water.

Human Interaction

Goose Barnacles have been harvested by humans for centuries, particularly in Spain and Portugal, where they are considered a delicacy. However, overharvesting has led to a decline in some populations, and conservation measures have been put in place in some areas. Template:Marine-stub