(a) Decreasing rank-yields plot of fish in the Tonle Sap Lake caught by a fishing lot. (b) The significant temporal decrease/increase in the yields of four dominant species fitted by linear models. (c) Mean yields ± standard error showing he temporal change in total fish yields. Abbreviations are as follows: Chm: Channa micropeltes, Hes: Henicorhynchus spp., Mis: Micronema spp. and Trm: Trichopodus microlepis.