Results of comparisons of total bivalve abundance across (A) time periods and (B) estuaries using one-way ANOVA and Tukey’s HSD pairwise tests.

Abundances used were the average total abundance reported from each study that was used in this study. ML = Mugu Lagoon, LPL = Los Peñasquitos, MB = Mission Bay, TJE = Tijuana Estuary, --- = no significant difference detected.