Table
4.9 Summary
of Land-based of Dolphin Behaviour and Movement Monitoring Requirements
|
EIA |
EM&A
Manual |
Approved
Monitoring Proposal |
|
Requirement for
Land-based of dolphin behaviour and movement monitoring |
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Ÿ Land-based theodolite tracking to study
dolphin behaviour near bored piling work site, and examine their north-south
movement across the bridge alignment before, during and after bridge
construction. |
Ÿ Land-based theodolite tracking to study
dolphin behaviour near bored piling work site, and examine their north-south
movement across the bridge alignment before,
during and after bridge construction. Ÿ The behaviour near the bored piling sites
and north-south movement across the bridge alignment of CWD should be
monitored in the waters to the west of Airport. |
Ÿ Dolphin
behaviour in response to bored piling works and movement near the bored
piling sites should be monitored at the first three pier sites for 30 days
from the start of bored piling activities in the waters to the west of
Airport. However, the number of monitoring days is not well specified for the
baseline period. Ÿ Therefore, reference to the requirements
in the Tuen Mun – Chek Lap Kok Link (TMCLKL) EM&A Manual was made, in
which 30 days of theodolite tracking before(i) and 30 days of theodolite tracking from the start
of bored piling activities(ii) will be conducted under the present
study in order to maintain overall consistency of EM&A Programs for the
Hong Kong-Zhuhai-Macao Bridge (HZMB) development. |
|
Frequency |
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|
Baseline |
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Ÿ Not specified |
Ÿ Baseline for
dolphin north-south movement across the bridge alignment shall be established
prior to the commencement of works and agreed with AFCD. |
Ÿ 30 consecutive
days (with 5-6 hours on each survey day). Ÿ It should be noted that every attempt
will be made to conduct the monitoring in favorable weather conditions
(Beaufort Sea State 3 or below; good visibility of 2km or above). |
|
Impact |
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|
Ÿ Not specified |
Ÿ Dolphin behavior in response to bored
piling and movement near the bored piling sites will be monitored at the
three pier sites for 30 days from the start of bored piling activities in the
waters to the west of Airport. |
Ÿ 30 consecutive days (with 5-6 hours on
each survey day).
Ÿ It should be noted that every attempt
will be made to conduct the monitoring in favorable weather conditions
(Beaufort Sea State 3 or below; good visibility of 2km or above). Ÿ In the proposal, the dolphin specialist
has also proposed an additional 64 days of monitoring (twice per month, with
5-6 hours on each survey day) throughout the construction period to examine
the impact of bridge construction on north-south movement of CWD across the
bridge alignment. |
|
Post-construction |
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Ÿ Not specified |
Ÿ Not specified |
Not specified |