EXECUTIVE SUMMARY

1. This Dolphin Acoustic Behaviour Monitoring Construction Phase Report is prepared by Cinotech Consultants Ltd. for the project “Contract No. HY/2011/09 – Hong Kong-Zhuhai-Macao Bridge Hong Kong Link Road – Section between HKSAR Boundary and Scenic Hill” (hereinafter called the “Contract”). This report documents the findings of Dolphin Acoustic Behaviour Monitoring conducted in March, April and July 2013.

Dolphin Acoustic Behaviour Monitoring Impact Phase Monitoring Progress

2. A summary of the monitoring activities in the reporting period is listed in Table I below:

Table I Summary Table for Monitoring Activities in the Reporting Month

Parameter(s)

Date(s)

* Dolphin Acoustic Behaviour Monitoring

With Bored Piling Activities:

18^th, 19^th, 20^th, 21^st, 22^nd, 23^rd, 25^th, 27^th, 28^th and 29^th March 2013

1^st, 2^nd, 3^rd, 5^th, 7^th, 8^th, 10^th and 11^th April 2013

9^th, 11^th, 12^th, 15^th, 16^th, 17^th, 18^th, 22^nd, 23^rd, 24^th, 25^th and 26^thJuly 2013

Remark: *Dolphin-related monitoring was conducted in the reporting period. According to the EM&A Manual for HKLR, the dolphin-related monitoring was conducted during the bored piling activities (e.g. installation of permanent casting for bored piling activities) which presented in Appendix A.

Breaches of Action and Limit Levels

3. Summary of the exceedances of the Dolphin Acoustic Behaviour Monitoring is tabulated in Table II.

Table II Summary of Exceedances of Dolphin Acoustic Behaviour Monitoring

	Average clicks per minute ( ± s.d.)	Average whistles per minute ( ± s.d.)
Group Size
1 dolphins	Limit	Limit
2-5 dolphins		Limit
6-9 dolphins		Action
10+ dolphins
Behavioural State
Feeding	Action	Limit
Milling		Limit
Socializing	Action	Action
Traveling	Limit	Action
Resting
Time of day
09:00-10:59	Limit	Limit
11:00-12:59	Action
13:00-14:59	Limit	Limit
15:00-16:59	Action	Limit

Remark: Highlighted in yellow means significant differences between the values recorded in impact and baseline monitoring periods

4. The details of the methodology, locations and results can be referred to Dolphin Acoustic Behaviour Monitoring Impact Phase Monitoring Report prepared by Dolphin Specialist in Appendix C.