10' 



28°oo' 



50 



4 



30 



AFFECTED AREA 



(Aeriol and vessel survey) 



SEPTEMBER 29, 1957 



= DISCOLORED WATER 



X^WW = DEAD FISH 

 = AREA SURVEYED 



83°00' 



igure 6. —Survey of red tide occurrence on September 29, 1957. 



Figu 



46 



