Giant Acorn Barnacle
Balanus nubilus
This record describes Balanus nubilus (species). Recorded family: Balanidae. Recorded order: Sessilia.
Identification and Appearance
Classification
Additional species information
Species notes from the sources
Etymology: Balanus nubilus Darwin, 1854
About Sessile Barnacles: the wider group
Order-level background for Sessilia, the group containing Balanus nubilus. Species-specific details appear above.
Group overview
Sessilia (acorn barnacles) includes ~500 described species. Barnacles were famously studied by Charles Darwin for 8 years (1846-1854), producing a definitive 4-volume monograph.
Ecological role of the group
Barnacles are filter feeders that provide habitat for other organisms on rocky shores. They are key intertidal species and indicators of sea level changes in paleoclimate research.
Economic and practical significance of the group
Marine biofouling by barnacles costs the global shipping industry an estimated $150 billion annually in increased fuel consumption, hull maintenance, and dry-docking. Barnacle cement is the strongest natural adhesive known - it is being studied for medical and industrial applications.
Recorded sources for this group: Marine biology, shipping industry research. Imported estimates may describe particular regions or reporting periods.