Results of two-way ANOVA testing differences in sediment variables (A.) and bivalve variables (B.) between areas with and without hard structure) and among sites in Mission Bay.

Structure presence/absence was treated as a fixed variable, while site (block) was designated as a random variable. N = 60 samples (6 each per 10 sites) V.p. = Manila clam (Venerupis philippinarum). Average (±standard error) of raw (untransformed) variables in the presence and absence of hard structure are shown; bold indicates significant difference between the presence and absence of structure. Significance was determined using Bonferroni adjusted alpha value (initial α = 0.05).Results of two-way ANOVA testing differences in sediment variables (A.) and bivalve variables (B.) between areas with and without hard structure) and among sites in Mission Bay.

将硬质结构的有无设为固定变量，样地（区组）设为随机变量。本研究共获取60份样本，10个样地各取6份。V.p.即菲律宾蛤仔（Manila clam, Venerupis philippinarum）。结果展示了硬质结构存在与不存在时，原始（未转换）变量的平均值（±标准误）；加粗字体表示硬质结构存在与不存在组间存在显著差异。显著性检验采用邦费罗尼校正后的α值（初始α=0.05）。本研究通过双因素方差分析（two-way ANOVA），检验了使命湾内硬质结构存在区与缺失区之间，以及不同样地间的沉积物变量（图A）和双壳类变量（图B）的差异。