%0 Journal Article
%T Length-weight regressions of the microcrustacean species from a tropical floodplain
%A Azevedo
%A F¨¢bio de
%A Dias
%A Juliana D¨¦o
%A Braghin
%A Louizi de Souza Magalh£¿es
%A Bonecker
%A Cl¨¢udia Costa
%J Acta Limnologica Brasiliensia
%D 2012
%I Scientific Electronic Library Online
%R 10.1590/S2179-975X2012005000021
%X aim: this study presents length-weight regressions adjusted for the most representative microcrustacean species and young stages of copepods from tropical lakes, together with a comparison of these results with estimates from the literature for tropical and temperate regions; methods: samples were taken from six isolated lakes, in summer and winter, using a motorized pump and plankton net. the dry weight of each size class (for cladocerans) or developmental stage (for copepods) was measured using an electronic microbalance; results: adjusted regressions were significant. we observed a trend of under-estimating the weights of smaller species and overestimating those of larger species, when using regressions obtained from temperate regions; conclusion: we must be cautious about using pooled regressions from the literature, preferring models of similar species, or weighing the organisms and building new models.
%K dry weight
%K cladocerans
%K copepods
%K biomass
%K secondary productivity.
%U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S2179-975X2012000100001&lng=en&nrm=iso&tlng=en