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3.2. Body size frequency distribution
Small size IWR-1-endo were highly represented (mode approximately 6 mm) at the majority of the sites, except for sites X and Y, where there was a predominance of intermediate size classes (mode approximately 15 mm; Fig. 5). The recurrence index of annual classes was greater at sites Y, D, E and F (IRSC = 0.9), while there were lower values at sites A, B, C, and G (IRSC = 0.6) (Fig. 5).
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Fig. 5.
Body size (Cephalothorax length) frequency distribution of Emerita analoga for all sites. Sample size (N) and an index of recurrence of size classes (IRSC) are included into the plot. Capital letter inside each plot correspond to sampling site.
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3.3. Correlations with environmental variables
Table 2.
Average values (±standard deviation) of environmental variables recorded during the entire sampling period for each sampled site (beach). Mean grain size in phi (ϕ) scale, TOM = total organic matter content in sediments, Hb = breaker height, Sb = beach slope, Ω = dean parameter, DO = dissolved oxygen in swash area. Temperature and salinity were also recorded in the swash area.