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Updated: May 5, 2026

The Barnacle Balanus improvisus as a Marine Model - Culturing and Gene Expression

The Barnacle Balanus improvisus as a Marine Model - Culturing and Gene Expression

Published on: August 8, 2018

Correlation between surface chemistry and settlement behaviour in barnacle cyprids (Balanus improvisus).

A Di Fino¹, L Petrone, N Aldred

¹a School of Marine Science and Technology, Newcastle University , Newcastle upon Tyne , UK.

|December 10, 2013

Summary

Barnacle settlement preferences for surface-free energy (SFE) and surface charge were studied in Balanus improvisus. Both species, B. improvisus and Balanus amphitrite, show similar settlement responses to these physico-chemical cues.

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Area of Science:

Marine biology
Surface chemistry
Materials science

Background:

Biofouling, particularly barnacle settlement, is a significant challenge in marine industries.
Previous research primarily focused on Balanus amphitrite, limiting understanding of other species' settlement behavior.
Physico-chemical surface properties like surface-free energy (SFE) and surface charge are known to influence settlement.

Purpose of the Study:

To investigate the impact of SFE and surface charge on the settlement of Balanus improvisus cyprids.
To compare the settlement preferences of B. improvisus with those of B. amphitrite.
To inform the design of effective antifouling coatings.

Main Methods:

Utilized laboratory biofouling assays with zero-day-old B. improvisus cyprids.
Employed well-defined model surfaces: self-assembled monolayers (SAMs) on gold-coated polystyrene Petri dishes.
Varied SAM end-groups to systematically alter surface-free energy and surface charge.

Main Results:

B. improvisus cyprid settlement was significantly influenced by both SFE and surface charge.
Higher settlement occurred on low-energy (hydrophobic) surfaces and negatively charged SAMs.
Low settlement was observed on positively charged SAMs, with intermediate settlement on neutral SAMs.

Conclusions:

Balanus improvisus exhibits similar settlement preferences to Balanus amphitrite regarding SFE and surface charge.
These findings support the development of novel antifouling coatings based on specific surface properties.
Standardized substratum choices are crucial for comparative studies on fouling organism settlement preferences.