5. 



DATA SET 



The coral and other epibenthic fauna of Baltimore, Ocean- 

 ographer and Lydonia Canyons were studied using a towed under- 

 water camera system. The field program took place during two 

 cruises on the R/V EASTWARD in May, 19 79. The photographs 

 consisted mostly of 35 mm color slides and some 70 mm black 

 and white prints. The photographic survey was also augmented 

 by dredging for specimens to aid in species identification. 

 The locations of usable camera footage are shown in Figures 1, 

 2 and 3. Areas in which continuous footage was obtained are 

 denoted as a solid line; dashed lines indicate areas of 

 discontinuous and therefore limited coverage. The efforts of 

 the field program resulted in approximately 8000 usable photo- 

 graphs all of which were studied for this data set. 



Unfortunately, limited comparable photographic coverage 

 was obtained for all three canyons (Table I) . In Baltimore 

 Canyon data was obtained for parts of the axis, head and both 

 walls in the depth interval from 100 to 1100 meters (Fig. 1) . 

 In Lydonia Canyon photographic coverage was obtained for parts 

 of the axis, both walls and flanks between the depths of 100 

 to 1100 meters (Fig. 2) . However, the coverage between 100 to 

 200 meters and 1000 to 1100 meters was quite sparse. No 

 shallow water coverage was obtained in Oceanographer Canyon, 

 thus the data is restricted to the depths between 400 and 1800 



