Species Family N %D %B Frequency of occurrence (%) Habitat Climatic season Channel Mangrove Seagrass Hypersaline Dry Rainy North E. argenteus Gerreidae 3079 36.68 7.39 5.32 1.87 0.73 2.79 86.45 11.33 2.22 E. gula Gerreidae 3094 36.97 7.66 7.19 7.88 30.55 8.70 15.04 77.22 7.74 C. atherinoides Hemiramphidae 699 8.35 10.88 3.68 5.60 0.73 0.28 42.90 22.71 34.38 M. curema Mugilidae 252 3.01 3.15 14.60 2.42 0.00 1.00 45.23 47.72 7.05 L. rhomboides Sparidae 569 6.80 8.80 37.00 18.80 8.73 57.30 64.11 29.16 6.73 S. testudineus Tetraodontidae 686 8.20 63.13 32.21 63.44 59.27 29.93 63.67 13.27 23.06

Table 3: Total of individuals (N), relative density (D 400 m2) and the relative biomass (B 400 m2) found during the period of study (April 2009-May 2010). The frequency of occurrence (%) of the fish species are showed per habitat (spatial variation) and per climatic seasons (temporal variation), both analysis with independient data. (NW=Norths winds).