Mullin and Fulling: Abundance of cetaceans In the southern Atlantic Ocean 



609 



much larger and many sightings occurred north of Cape 

 Hatteras(Fig.4). 



Abundances have also been estimated for small portions 

 of the study area, but direct comparisons to our estimates 

 are difficult. Seasonal abundances were estimated for 

 about 26 cetacean species or genera encountered in U.S. 



continental shelf and slope waters between Cape Hat- 

 teras and Canada during aerial surveys conducted from 

 1978 to 1982 (CeTAP2), including at least 11 species or 

 genera sighted during our survey. Fritts et al."' sighted 

 12 cetacean species during seasonal aerial surveys of the 

 continental shelf and southern Blake Plateau off central 



