School of Marine Science and Technology, Newcastle University, UK.
Biofouling. 2010;26(3):287-99. doi: 10.1080/08927010903511626.
This manuscript constitutes the first evidence of the effects of texture on the rate of removal of cyprids from surfaces and the link between settlement preferences and susceptibility to removal by force. Cyprids of Balanus amphitrite settled preferentially on sinusoidal linear textures (1:1 aspect ratio) in the range 0-32 microm, with textures on the scale of the cyprid (512 microm) treated as flat. Polycarbonate was preferred as a substratum to a polydimethylsiloxane (PDMS) elastomer. Textures of 64-256 microm were avoided and the texture of 256 microm in PDMS was the least preferred substratum tested, with no settlement of cyprids. Hydrodynamic removal was inversely correlated to settlement rate on the textures assayed, implying an adaptive response by cyprids to select surface textures to which their attachment was most tenacious. Correlation plots suggest that likelihood of removal by force is not the only factor involved when cyprids elect to settle on a given texture. Choice and no-choice assays delivered different results. This discrepancy is partially ascribed to inherent variability in the choice assay method, but also to the ability of cyprids to compare textures and exercise true choice, biasing settlement towards stimulatory textures in preference to intermediate textures that were settled on in the absence of choice. The identification of a link between settlement preference and likelihood of removal will assist practically in the development of fouling-resistant marine coatings.
本文首次证明了表面纹理对藤壶幼体去除速率的影响，以及附着偏好与因强制去除而产生的敏感性之间的联系。藤壶幼体优先附着在正弦线性纹理（1:1 纵横比）上，范围为 0-32 微米，而与藤壶大小相当的纹理（512 微米）则被视为平坦表面。聚碳酸酯被优先选择为基底，而不是聚二甲基硅氧烷（PDMS）弹性体。64-256 微米的纹理被回避，而 PDMS 中的 256 微米纹理是测试的最不受欢迎的基底，没有藤壶附着。水动力去除与在测定的纹理上的附着率呈反比，这意味着藤壶通过选择表面纹理来做出适应性反应，使其附着更牢固。相关图表明，当藤壶选择附着在特定纹理上时，通过强制去除的可能性并不是唯一涉及的因素。有选择和无选择的实验得出了不同的结果。这种差异部分归因于选择实验方法固有的可变性，也归因于藤壶比较纹理和进行真正选择的能力，这种能力使附着偏向于有刺激作用的纹理，而不是在没有选择的情况下附着的中间纹理。确定附着偏好与去除可能性之间的联系，将有助于实际开发抗污海洋涂料。
