behavior and platform activity. 62.5 percent of the workers said the platfonn 

 was drilling when they saw the dolphins, and 37.5 percent said the platform 

 was in production. 



15.4 percent of the workers interviewed had seen no seals or sea lions from 

 Platform Emmy, 46.1 percent had seen a few, and 53.8 percent had seen many. 

 75 percent of the workers who had seen seals or sea lions said the seal or sea 

 lion was within 3 yards of the platform and 25 percent said the seal or sea 

 lion was within 50 yards. 11.1 percent of the workers could not remember what 

 time of day they saw seals or sea lions, 22.2 percent said they saw them at 

 midday, 55.6 percent said they saw them throughout the day, and 11.1 percent 

 said they saw them at night. 77.8 percent of the workers saw seals or sea 

 lions throughout the year, while 11.1 percent said summer, and 11.1 percent 

 could not remember. 55.6 percent of the workers reported seeing a single seal 

 or sea lion, 11.1 percent had seen a group, and 33.3 percent had seen seals 

 and sea lions both alone and in groups. None of the workers could recall 

 seeing seals or sea lions moving in any particular direction. 80 percent of 

 the workers said seal or sea lion behavior was unrelated to work on the platform 

 and one worker (20 percent) said he had noted a relationship. All of the 

 workers who had seen seals or sea lions reported that the platform was drilling 

 at the time. 



The one worker interviewed from Platform Holly was a crewboat skipper who said 

 he often saw marine mammals. He had seen a few large whales, mostly grays, at 

 varying distances from the platform. He reported that he saw whales throughout 

 the day. The whales were usually moving downcoast alone or in pairs. He had 

 not noted any relationship between whale behavior and work on the platform. 

 He had seen many dolphins or porpoises at varying distances from the platform. 

 He usually saw the dolphins or porpoises at dawn or dusk. They were always in 

 groups. He could not remember the time of year he had seen them or the direc- 

 tion they were moving in. He had seen many seals and sea lions near Holly. 

 He had seen both California sea lions and harbor seals. They had been close 

 to the platform and he saw them throughout the day and throughout the year. 

 The seals and sea lions occurred both singly and in groups and moved in all 

 directions. He had not noticed any relationship between seal and sea lion 

 behavior and work on the platform. 



B-85 



