STATION 



13 



15 



17 



19 



21 - 



23 



25 



NET 4 ( 30 XXX AND 56 XXX 

 OBLIQUE TOWS 



- NORTH EQUATORIAL CURRENT 



CURRENT BOUNDARY 



EQUATORIAL COUNTER CURRENT 



N 



CURRENT BOUNDARY ^g?^ 



SOUTH EQUATORIAL CURRENT ■ 



LATI TUDE 

 125° N 



23° 



POSITION OF 



MAXIMUM CONVERGENCE 



EQUATORIAL 

 DIVERGENCE 



± 



1 1 1 1 1 1 



J_ 



I ' II' 



J 



21' 



19° 



17' 



15' 



-13° 



4000 



3000 



2000 



1000 



°'° .020 °'°.040 °5°.060 



- 9° 



- 7' 



- 5° 



- y 



N- Q 



070 



.080 



090 



•"6; 3» 



NUMBER PLANKTERS PER CU. METER DISPLACEMENT VOL. ML PER CU. METER 



FIG. 16. LATITUDINAL DISTRIBUTION OF ZOOPLANKTON ABUNDANCE . M/V HUGH M. SMITH 

 CRUISE n STATIONS 1-26 CURRENT BOUNDARIES AND THE MAJOR SURFACE 

 DIVERGENCE AND CONVERGENCE ARE INDICATED. D AND N REPRESENT DAY 

 OR NIGHT HAULS 



