KENNEY and WINN: CETACEAN HIGH-USE HABITATS 



tified in the field to genus. In addition, there were 

 2,039 sightings of 30 more or less unidentified 

 categories of cetaceans, bringing the grand total to 

 7,343 sightings. Table 1 lists all the observed ceta- 

 cean species and unidentified categories, with num- 

 bers of sightings of each. It also shows, for each 

 species, the values used in this analysis for estimated 



average body weight and percentage of diet com- 

 prised of the three major prey types. 



Overall, 1,476 10-minute blocks were sampled by 

 CETAP dedicated and POP surveys, with a total of 

 over 373,000 km of track line surveyed within accept- 

 able criteria. Somewhat fewer blocks were sampled 

 during any one season. Sighting effort was most in- 



Table 1.— List of cetacean species and unidentified categories sighted by CETAP dedicated aerial and POP surveys on the northeast 

 U.S. shelf, showing number of sightings, estimated body weight, and estimated percentage of the diet comprised of fish, squid, and 

 zooplankton. Endangered species are identified by *. 



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