HOLT: DENSITY OF DOLPHIN SCHOOLS 



A. CALM SEAS 



30° N 



20' 



10' 



0° - 



10° - 



20° S 



NorthernjOff Shore 

 ^rea 



Southern Offshore 

 Area 



160° 150° 140° 130° 120° 110° 100° 90° 80' 



70° W 



B. ROUGH SEAS 



30°N 



20' 



10' 



0' 



10' 



20°S 



^Northern Off^hoFe . ^)^:y\- 



Southern Offshore 

 Area 



160° 150° 140° 130° 120° 110° 100° 90° 80° 70° W 



Figure 8. — Distribution of searching effort for the 1979-83 ship surveys during (A) calm and (B) rough conditions. 



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