Field experiment: the percentage contribution (individual C% and cumulative S%) of different species to average measures of dissimilarity (D) between the macrobenthic assemblages associated with live barnacles (LB) and their empty tests (ET) after 1 year of exposure, and their average abundance in LB and ET.

SIMPER on fourth root transformed abundances standardized by the number of adult barnacles or their empty tests on a substrate and Bray-Curtis similarity. ANOVA on raw abundances transformed to acheive homogeneity of variances where needed (Tr). T–taxonomic group. M–mobility. Significant differences between LB and ET and significantly higher mean abundances highlighted in bold. mo–mobile, se–sessile, a–algae, b–bryozoans, c–crustaceans, m–molluscs, p–polychaetes, t–tunicates, frt–fourth root transformation,
*–p < 0.05
**–p < 0.01
ns–not significant.
Field experiment: the percentage contribution (individual C% and cumulative S%) of different species to average measures of dissimilarity (D) between the macrobenthic assemblages associated with live barnacles (LB) and their empty tests (ET) after 1 year of exposure, and their average abundance in LB and ET.

相似百分比分析（SIMPER）以底质上成年藤壶或其空壳的数量作为标准化依据，对经四次方根转换的物种丰度进行分析，并结合Bray-Curtis相似性系数。针对原始丰度进行必要转换以实现方差齐性的方差分析（ANOVA，Analysis of Variance），其中Tr代表转换操作。T代表类群（taxonomic group），M代表移动性。活藤壶组（LB，live barnacles）与空壳组（ET，empty tests）间的显著差异，以及均值丰度显著更高的组别均以粗体标注。
mo：移动型（mobile）；se：固着型（sessile）；
a：藻类（algae）；b：苔藓动物（bryozoans）；c：甲壳动物（crustaceans）；m：软体动物（molluscs）；p：多毛类环节动物（polychaetes）；t：被囊动物（tunicates）；
frt：四次方根转换（fourth root transformation）；
*：p < 0.05；**：p < 0.01；ns：无显著性差异（not significant）。
野外实验：暴露1年后，与活藤壶组（LB）及其空壳组（ET）相关的大型底栖生物群落间的平均相异性（D），各物种对该相异性的贡献百分比（单物种贡献C%与累积贡献S%），以及各物种在LB和ET中的平均丰度。