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Fig. 3. The percentage of total-N excreted as urea-N by unfed (control; white
squares) and fed (grey squares) Periophthalmodon schlosseri at 3 h
intervals during the 24 h period post-feeding. Values are means +
S.E.M. (N=4).
*Significantly different from the corresponding control value,
P<0.05. aSignificantly different from 0-3 h,
P<0.05; bsignificantly different from 3-6 h,
P<0.05; csignificantly different from 6-9 h,
P<0.05; dsignificantly different from 9-12 h,
P<0.05.