Wildlife in Norfolk Home > Wildlife in Norfolk > Species explorer > Marine Invertebrates > Common Barnacle Common Barnacle Beadlet Anemone Common Limpet Common Lobster Common Mussel Common Squat Lobster Common Starfish Common Sunstar Dog Whelk Edible Crab Edible Periwinkle Hermit Crab Long-spined Sea Scorpion Moon Jellyfish Peacock Fan Worm Razor Shells Shorecrab Slipper Limpet Starlet Sea Anemone Velvet Swimming Crab Violet Sea Slug Nature reserves Habitat explorer Barnacles by Rob Spray 2/2 Barnacles on rock by David North 1/2 Barnacles by Rob Spray Common Barnacle Balanus perforatus These sessile crustaceans live in big populations along the shoreline and have hard conical shells. They can be seen all year round, particularly along the Norfolk coast. Conservation status Barnacles are not presently threatened. Related questions & advice Sorry, there's currently no Wildlife Questions and Advice with the specified paramaters. Details Did you know? Barnacles are hermaphrodites but at mating time take on the role of either male or female. The female stores the eggs until they hatch and are released as free swimming larvae known as nauplii which form part of the plankton population. After several moults the larvae fixes itself head first to a rock and metamorphoses into the adult form. How to recognise Where to see When to see Find out more How to help Gallery feed See all photos Whats on? December 2021 M T W T F S S 29 30 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 1 2 3 4 5 6 7 8 9 Share this Share Also in this section Nature reserves Species Explorer Social media Facebook Twitter YouTube Instagram Features Do you have a question about Norfolk's wildlife? Vine House Farm Bird Food Hide footer Make a donation Volunteer & Jobs What's on Education Head Office Norfolk Wildlife Trust Bewick House 22 Thorpe Road Norwich, NR1 1RY Map Support About and contact Privacy policy Terms of use Cookies Social Media Twitter Facebook YouTube Instagram Popular resources A Living Landscape Nature reserves Species explorer Habitat explorer © 2021 NWT Reg Charity Number 208734 / Registered in England as a Company limited by guarantee no. 217338 / Email info@norfolkwildlifetrust.org.uk / Empresa web design