Table 4.6    Dolphin encounter rates (sightings per 100 km of survey effort) during the impact monitoring period (December 2013 – February 2014) 

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 3, 2013)

9.7

67.6

Set 2         (December 20, 2013)

20.1

50.4

Set 3
(January 3, 2014)

18.8

32.9

Set 4
(January 24, 2014)

10.5

21.1

Set 5
(February 24, 2014)

29.4

135.1

Set 6
(February 26, 2014)

19.6

53.8