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dc.contributor.author M. en_US
dc.contributor.author Robert J. en_US
dc.date.accessioned 2010-03-08T15:15:25Z
dc.date.available 2010-03-08T15:15:25Z
dc.date.issued 2003-03 en_US
dc.identifier http://dx.doi.org/10.1034/j.1600-0633.2003.00003.x en_US
dc.identifier.citation Ali , M & Wootton , R J 2003 , ' Correlates of growth in juvenile three-spined sticklebacks: potential predictors of growth rates in natural populations ' Ecology of Freshwater Fish , vol 12 , no. 1 , pp. 87-92 . , 10.1034/j.1600-0633.2003.00003.x en_US
dc.identifier.other PURE: 138156 en_US
dc.identifier.other dspace: 2160/4191 en_US
dc.identifier.uri http://hdl.handle.net/2160/4191
dc.description.abstract The possibility of using indices to quantitatively predict short-term growth rates of juvenile three-spined sticklebacks (Gasterosteus aculeatus L.) was assessed. A range of weight-specific growth rates (GW) was obtained in experiments with individual sticklebacks fed enchtraeid worms at different daily rations over 21 days. There was a strong, positive correlation between GW and the RNA : DNA ratio in white muscle (r2 = 0.90) and lipid concentration (as percentage dry weight) of the carcass (r2 = 0.92). There were smaller, but significant correlations between GW and the percentage of dry matter in the carcass (r2 = 0.67), and the residuals from the weight–length relationship (r2 = 0.49). Regressions relating growth to RNA : DNA ratio and lipid concentration offer a means of estimating short-term growth rates in natural populations. A test of such predictions using the results from a 56-day experiment on stickleback growth suggested that predictions from percentage lipid were biased and inefficient, while predictions from the RNA : DNA ratio were unbiased but inefficient. Predictions from percentage lipid were higher than from the RNA : DNA ratio. en_US
dc.format.extent 6 en_US
dc.relation.ispartof Ecology of Freshwater Fish en_US
dc.subject stickleback en_US
dc.subject specific growth rate en_US
dc.subject RNA en_US
dc.subject DNA ratio en_US
dc.subject lipid en_US
dc.subject condition indices en_US
dc.subject predictive regressions en_US
dc.title Correlates of growth in juvenile three-spined sticklebacks: potential predictors of growth rates in natural populations en_US
dc.contributor.pbl Institute of Biological, Environmental and Rural Sciences en_US


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