Table 4.6 Dolphin encounter rates (sightings per 100 km of survey effort) during the impact monitoring period (March-May 2017)

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 (March 1^st)	5.6	11.2
	Set 2 (March 13^th)	4.7	4.7
	Set 3 (April 5^th)	0.0	0.0
	Set 4 (April 13^th)	14.9	64.5
	Set 5 (May 8^th)	9.7	19.4
	Set 6 (May 19^th)	9.7	29.1