Ocean surveys will serve to give us maps of the seas in terms 

 of physical, chemical, and biological parameters. The usefulness 

 of these maps will depend in part on the kinds of parameters we 

 measure and the accuracy of measurement. The problems of 

 measurement are more acute for the biological parameters than 

 for the others since some of the measurements to be taken have 

 not yet become generally accepted or standardized. Without care- 

 ful inter calibration, changes in measurement techniques will make 

 comparisons of data taken prior to such changes difficult. Also, 

 the problems involved in qualitative differences of some biological 

 parameters even when measured by the same instrument have not 

 yet been satisfactorily solved. However, in spite of such problems, 

 the survey maps of the oceans will serve as a very useful basis of 

 planning fisheries research programs and as a landmark in man's 

 understanding of this planet. 



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