APHOTOMARINE

An educational resource dedicated mainly to the photography
and diversity of marine life that can be found in coastal waters
and intertidal areas of Great Britain and Ireland by David Fenwick.

A-P-H-O-T-O Wildlife Stock Image Library
Semibalanus balanoides (Linnaeus, 1758) - An Acorn barnacle (Barnacle images)
Acorn barnacle
Semibalanus balanoides
- on plastic flotsam 1

Acorn barnacle
Semibalanus balanoides
- on plastic flotsam 2

Acorn barnacle
Semibalanus balanoides
- on plastic flotsam 3

Acorn barnacle
Semibalanus balanoides
- dorsal view 1

Acorn barnacle
Semibalanus balanoides
- ventral view 1

Above specimens were found inside a small, thin plastic, Obelia geniculata, covered container that washed ashore at Perranporth, Cornwall, 30.01.15. There is possible confusion here with Balanus crenatus, which the specimen here looks like. Balanus crenatus being a common fouling species. Images were sent to Ian F. Smith as the species didn't exactly fit with B. crenatus. Ian kindly determined the species to be Semibalanus balanoides.

Acorn barnacle
Semibalanus balanoides
- on pier at Lamorna Cove 1

Acorn barnacle
Semibalanus balanoides
- on pier at Lamorna Cove 2

Acorn barnacle
Semibalanus balanoides
- on pier at Lamorna Cove 3

Acorn barnacle
Semibalanus balanoides
- on pier at Lamorna Cove 4

Acorn barnacle
Semibalanus balanoides
- on rock 1

Acorn barnacle
Semibalanus balanoides
- on rock 2

Acorn barnacle
Semibalanus balanoides
- young barnacles on rock 1

Acorn barnacle
Semibalanus balanoides
- young barnacles on rock 2

Acorn barnacle
Semibalanus balanoides
- young barnacles on rock 3

Scientific and European Names:
Semibalanus balanoides, Balanus balanoides, Northern rock barnacle, Acorn barnacle, Barnacle, Gewone Zeepok, Balane, Balane commune, Seepocke.

Semibalanus balanoides an Acorn Barnacle
The main objective of this website is in furthering environmental awareness and education through the medium of photography. To increase awareness and access to the wildlife of the region and help
people find and identify it. Sometimes the difference between species is obvious but many species can only be determined by observing microscopic characteristics that are specific to any one species.