69. 



Between 400 and 1100 meters rattails, 

 Synaphobranehus kaupi and Geryon quinquedens 

 dominate the fauna. 



(3) In terms of trophic types the shallow-water fauna 



is variable, being composed of predators, scavengers 

 and filter-feeders. Below 400 meters larger 

 scavengers and predators dominate the fauna. 



(4) The coral populations in this canyon are the least 

 diverse and abundant of the three canyons surveyed. 

 The dominant species was a fluffy white unidenti- 

 fied sea pen that occurred between the depths of 

 100 to 300 meters. Other coral species found in 

 the canyon are Flabellum alabastrum^ Paragorgia 

 arboreat Primnoa reseda and Eunephthya florida. 



(5) One unique area in this canyon was identified. A 

 deposit of large boulders on the middle west wall 

 provided suitable substrate for a very high con- 

 centration of large white anemones. Many other 

 organisms were also found in this area, particularly 

 rosefish and several species of crabs. 



Lydonia Canyon 



Lydonia Canyon is one of the north-Atlantic canyons 

 surveyed in this study and is located off Georges Bank. This 



