Table S.3. Model results for δ34S values of each fish species pooled across both estuaries.

Species / Model / K / n / LogLik / AIC / AICc / ΔAICc / wi
Mugil cephalus / Season / 4 / 16 / -36.99 / 81.97 / 85.62 / 0.00 / 0.63
Null* / 3 / -39.34 / 84.69 / 86.68 / 1.06 / 0.37
Body Size / 4 / -41.68 / 91.35 / 95.00 / 9.38 / 0.01
Eugerres plumieri / Season* / 4 / 59 / -152.40 / 312.90 / 313.54 / 0.00 / 0.96
Null / 3 / -157.10 / 320.10 / 320.64 / 7.10 / 0.03
Body Size / 4 / -157.20 / 322.30 / 323.14 / 9.60 / 0.01
Lagodon rhomboides / Season / 4 / 31 / -64.20 / 136.40 / 137.94 / 0.00 / 0.68
Null* / 3 / -66.40 / 138.80 / 136.69 / 1.75 / 0.29
Body Size / 4 / -67.32 / 142.60 / 144.18 / 6.24 / 0.03
Chaetodipterus faber / Season* / 4 / 25 / -50.59 / 109.20 / 111.18 / 0.00 / 0.77
Null / 3 / -53.38 / 112.80 / 113.90 / 2.72 / 0.17
Body Size / 4 / -53.71 / 115.40 / 117.42 / 6.24 / 0.03
Ariopsis felis / Season* / 4 / 63 / -127.10 / 262.10 / 262.89 / 0.00 / 0.80
Null / 3 / -129.80 / 265.70 / 266.01 / 3.12 / 0.17
Body Size / 4 / -130.20 / 268.30 / 269.09 / 6.20 / 0.04
Bagre marinus / Season* / 4 / 45 / -81.15 / 170.30 / 171.30 / 0.00 / 0.92
Null / 3 / -85.10 / 178.20 / 176.79 / 5.49 / 0.06
Body Size / 4 / -85.24 / 176.50 / 179.48 / 8.18 / 0.02
Carcharhinus leucas / Season / 3 / 21 / -35.50 / 78.99 / 81.50 / 0.00 / 0.66
Null* / 4 / -37.72 / 81.45 / 82.85 / 1.35 / 0.33
Body Size / 4 / -40.06 / 88.12 / 90.62 / 9.12 / 0.01

K, number of model parameters; n, sample size; logLik, model log-likelihood; AIC, Akaike’s information

criterion; AICc, AIC with small-sample bias adjustment; ΔAICc, estimates the relative difference between

the top ranked and each alternative model; wi, Akaike’s weights. * indicates best model for each species.

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