Research Article

Seasonal Changes of Fish Assemblages in a Subtropical Lagoon in the SE Gulf of California

Table 3

Results obtained when fitting the log normal distribution to our data and results of the chi-squared tests of the observed and expected observations.

 Dec. 02Jan. 02Feb. 02Mar. 02Apr. 02May. 02May. 04Jun. 04July. 04Mar. 05Jun. 05

Obs. 0.810.760.760.880.931.121.771.371.111.711.98
Obs. 0.320.480.420.350.360.330.640.160.370.560.48
Est. 0.730.440.570.80.861.081.731.371.051.691.98
Est. 0.40.820.620.450.450.390.730.160.450.610.48
Total pred. sp.67.4106.0692.32111.55111.6381.05104.93132.754.349.03
Total obs. sp.6484801061078010431325449
diversity 107.03117.04117.03167.03166.73130.6123.0576.8548.9669.3170.48
2.593.949.139.85.97.952.151.787.624.313.22
D. F. 68986712681011
P value0.860.860.430.280.430.340.710.940.470.930.28

Obs.: observed; est.: estimated; pred.: predicted; sp.: species; M: mean; : variance; D. F.: degrees of freedom.