Table 4.6 Dolphin encounter rates (sightings per 100 km of survey effort) during the impact monitoring period (September – November 2015)

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 7^th)	4.5	31.4
	Set 2 (September 10^th)	14.2	47.3
	Set 3 (October 7^th)	13.3	66.7
	Set 4 (October 15^th)	12.8	12.8
	Set 5 (November 13^th)	8.6	34.3
	Set 6 (November 19^th)	16.8	67.2