WEST LONGITUDE 



FISHERY BULLETIN: VOL. 70, NO. 3 



25—1^ 



25- 



160 

 160 



10- 



160 



160 



160 

 180 



160 



160 



160 



i^Ozs 25_J«0 



a a a 



a a a 

 a a a 

 a a a 

 • « « 



•10 10- 



JUNE-YEAR I 



120 160 



• • 



Aa a a 



SEPTEMBER-YEAR 2 



aAa a 



A Aa 



a a a 



a a a 



• • • a 



« • 



SEPTEMBER -YEAR I 



a a 

 a aa 

 a • a 

 • • • 

 • •• 



DECEMBER-YEAR I 



a a a a 

 • a a 



zM aAa 



« • 



MARCH-YEAR 2 



a a a 

 • •• 



"A 

 <i^AA 



JUNE— YEAR 2 



120 



25 25- 



■10 10- 



120 



• ••• 



160 



a aAA a 



DECEMBER— YEAR2 



120 '60 



' -25 25- 



^^i( 



120, 



25 25- 



160 



160 



A a4 



a a 



MARCH- YEAR 3 



-10 10- 



• ••• A 



• • • • 



25 25- 



160 

 160 



Af^L. 



a aA 



JUNE- YEAR 3 



-10 10- 



a a a 



a a 

 A a 



SEPTEMBER-YEAR } 



120, 



120 



Figure 12. — Location of drifting objects every 3 months after being introduced during April, May, and June of 

 the first model year at long 120°W. Triangles denote objects introduced north of lat 15°N. The number of drift- 

 ing objects, if there are more than one per 1-degree square, is indicated by concentric triangles or circles. 



778 



