Total length-weight relationships among Thai freshwater fishes and the influence of capture location and preservation

Abstract

Total length-weight regressions on logarithmic transformed data are provided for 33 species, with 26 apparently being first estimates. All regressions are highly significant with slope values between 2.5720 and 3.4436. Slopes and intercepts of length-weight regressions did not differ significantly with location for each of three species. Preservation in 10% formalin for 10days followed by 30days in 70% ethanol did not significantly influence regression slopes for the three species, length ranges and/or locations examined (ancova). Significance among regression intercepts was equivocal with ancova analyses mostly suggestive of differences and overlap of 95% confidence limits mostly suggestive of similarities. © 2010 Blackwell Verlag, Berlin.