Table 4.6 Dolphin encounter rates (sightings per 100 km of survey effort) during the impact monitoring period (December 2016 –February 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 (December 2^nd)	14.9	39.6
	Set 2 (December 12^th)	0.0	0.0
	Set 3 (January 3^rd)	13.0	19.5
	Set 4 (January 9^th)	13.2	35.2
	Set 5 (February 6^th)	21.8	116.4
	Set 6 (February 13^th)	18.6	69.6