Fig. 6From: Population structure of the ribbed mussel Geukensia demissa in salt marshes in the southern Gulf of St. Lawrence, CanadaMean mussel length across the three Spartina alterniflora zones at Town Point in Antigonish Harbour in 2007 and 2008. Different lowercase letters indicate significant differences between zones within a single year (P < 0.05); different capital letters indicate significant differences within a zone between the 2 years sampled (P < 0.05). Error bars represent standard error; n = 50Back to article page