Figure 5. — An overlay on figure 3 that demonstrates the relation l>et\veen the plumes and fishing intensity for brown 

 shrimi). Tlie numbers in the 10-minute grids represent the total number of vessels fishing in each grid in July- 

 September 1964. Only those grids are muubered where 25 or more vessels fished. 



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U.S. FISH AND WILDLIFE SERVICE 



