Table 4.6 Dolphin encounter rates (sightings per 100 km of survey effort) during the impact monitoring period (September –November 2016)

Survey Area	Dolphin Monitoring	Encounter rate (STG) (no. of on-effort dolphin sightings per 100 km of survey effort)	Encounter rate (ANI) (no. of dolphins from all on-effort sightings per 100 km of survey effort)
		Primary Lines Only	Primary Lines Only
West Lantau	Set 1 (September 8^th)	17.4	43.5
	Set 2 (September 20^th)	14.2	71.0
	Set 3 (October 6^th)	9.0	54.2
	Set 4 (October 13^th)	5.2	21.0
	Set 5 (November 9^th)	4.5	4.5
	Set 6 (November 16^th)	28.6	128.8