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Correlation between surface chemistry and settlement behaviour in barnacle cyprids (Balanus improvisus)
Newcastle University, England .
Linköpings universitet, Institutionen för fysik, kemi och biologi, Molekylär fysik. Linköpings universitet, Tekniska fakulteten.
Newcastle University, England .
Linköpings universitet, Institutionen för fysik, kemi och biologi, Molekylär fysik. Linköpings universitet, Tekniska fakulteten.ORCID-id: 0000-0002-1639-5735
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2014 (Engelska)Ingår i: Biofouling (Print), ISSN 0892-7014, E-ISSN 1029-2454, Vol. 30, nr 2, s. 143-152Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

In laboratory-based biofouling assays, the influence of physico-chemical surface characteristics on barnacle settlement has been tested most frequently using the model organism Balanus amphitrite (= Amphibalanus amphitrite). Very few studies have addressed the settlement preferences of other barnacle species, such as Balanus improvisus (= Amphibalanus improvisus). This study aimed to unravel the effects of surface physico-chemical cues, in particular surface-free energy (SFE) and surface charge, on the settlement of cyprids of B. improvisus. The use of well-defined surfaces under controlled conditions further facilitates comparison of the results with recent similar data for B. amphitrite. Zero-day-old cyprids of B. improvisus were exposed to a series of model surfaces, namely self-assembled monolayers (SAMs) of alkanethiols with varying end-groups, homogenously applied to gold-coated polystyrene (PS) Petri dishes. As with B. amphitrite, settlement of cyprids of B. improvisus was influenced by both SFE and charge, with higher settlement on low-energy (hydrophobic) surfaces and negatively charged SAMs. Positively charged SAMs resulted in low settlement, with intermediate settlement on neutral SAMs of similar SFE. In conclusion, it is demonstrated that despite previous suggestions to the contrary, these two species of barnacle show similar preferences in response to SFE; they also respond similarly to charge. These findings have positive implications for the development of novel antifouling (AF) coatings and support the importance of consistency in substratum choice for assays designed to compare surface preferences of fouling organisms.

Ort, förlag, år, upplaga, sidor
Taylor andamp; Francis: STM, Behavioural Science and Public Health Titles , 2014. Vol. 30, nr 2, s. 143-152
Nyckelord [en]
cyprid; antifouling; Balanus improvisus; self-assembled monolayer; surface energy; surface charge
Nationell ämneskategori
Teknik och teknologier
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URN: urn:nbn:se:liu:diva-104280DOI: 10.1080/08927014.2013.852541ISI: 000329963000002OAI: oai:DiVA.org:liu-104280DiVA, id: diva2:697206
Tillgänglig från: 2014-02-17 Skapad: 2014-02-14 Senast uppdaterad: 2017-05-31

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Petrone, LuigiEderth, ThomasLiedberg, Bo

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