This leaves only the recoveries from all tagging areas in the southern California offshore 

 area below the required minimum. This could be corrected by increasing the catch in the southern 

 California offshore area from 100 to 500 tons. 



Thus far I have discussed what may be considered the two simple extremes of a somewhat 

 oversimplified model. In one example the tags (20,000) are put out in proportion to the distribution 

 of the population of 2 x 10' fish, which does not change. There is no exchange of fish between areas. 

 The tagged fish are randomly distributed within the population in each area . The recoveries are 

 made in proportion to the population. A catch of 2,000 tons is necessary to yield 200 recoveries, 

 which will satisfy the requirement of a minimum of ten recoveries in any single area of fish tagged 

 in any single area . 



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