TANK CULTURE OF TILAPIA 



49 



Appendix Table 2. — Oxygen concentrations in tanks 1 and 2 sampled hourly for 24 hours, at the pilot plant, November 12-13 



1957 



I Tank 1 was cleaned on Nov. 4, 1957 and the water was still relatively low in algae on Nov. 12 and 13. 

 ' Tank 2 had a high concentration of algae {Chlorella). 



Appendix Table 3A. — Oiygen concentrations (inLjl.) observed in sex ratio-fish concentration experiment, August 27- 



November 26, 1958 



Appendix Table 3B. — Oxygen concentrations (ml./l.) ob- 

 served in feeding experiment, August 27-November 26, 1958 



