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Environmental
Impact Assessment (EIA) Report for Establishment of Fish Culture Zone at Po
Toi (Southeast) November
2022 |
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EIA REPORT
(PDF) |
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TABLE OF CONTENTS |
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1.
INTRODUCTION 5.
FISHERIES 7.
VISUAL 9.
ENVIRONMENTAL MONITORING AND AUDIT 10.
SUMMARY OF ENVIRONMENTAL OUTCOMES 11.
CONCLUSION |
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LIST OF FIGURES |
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Figure 1.1 Location Plan for the
Establishment of Fish Culture Zone (FCZ) at Po Toi (Southeast) Figure
2.1 Potential Areas for
Development of Fish Culture Zones based on Constraint Mapping Figure 2.2 Proposed Locations for the
Establishment of Fish Culture Zones Figure
2.3 Example of the Traditional
Fish Farms Figure
2.4 Example of the Floating
Gravity Cage Figure 2.5 Example of Newer Type of Mariculture Figure 2.6 Example of Submersible Cage for
Fish Culture Figure 2.7 Sample Layout of IMTA Figure 2.8 Example of Deep Cage for
Echinoderm Culture Figure
2.9 Examples of (a) Lantern
Nets and (b) Longlines for Bivalve Culture Figure
2.10 Example of
Semi-submersible Steel Truss Cage Figure 4.1 Representative
Photos of Coral Survey at Po Toi (Southeast) Figure
4.2a Representative Photos of Drop Camera Survey at Po Toi (Southeast) Figure
4.2b Representative Photos of Drop Camera Survey at Po Toi (Southeast) Figure
5.1 Fisheries Sensitive
Receivers in the Assessment Area Figure 7.2 Planning & Development Context near Proposed Po
Toi (Southeast) FCZ Figure 7.3 Detailed Locations of Proposed Vantage
Points (VP1 to VP4) and Zone of Visual Influence for Po Toi (Southeast) FCZ Figure 7.4 Aerial View of Detailed Locations of
Proposed Vantage Points (VP1 to VP4) for Proposed Po Toi (Southeast) FCZ Figure 7.5a&b Po Toi Viewpoint 1 - View to Project
Site from Cape D' Aguilar Figure 7.6a&b Po Toi Viewpoint 2 - View to Project
Site from Tung Lung Chau Figure 7.7a&b Po Toi Viewpoint 3 - View to Project
Site from Waters west of Tung Lung Chau Figure 7.8a&b Po Toi Viewpoint 4 – View to Project
Site from Po Toi Island Figure 8.1 Locations
of Sonar Contacts at the Proposed FCZ at Po Toi (Southeast) Figure 8.2 Zhenghe Navigation Map from Wu Bei Zhi
showing Po Toi Island Figure 8.3 SSS Mosiac Showing the Overview of the
Seabed of Po Toi (Southeast) FCZ Figure 8.6 SSS Rectified Image Showing Sonar
Contacts D-SC005 and D-SC006 Figure 8.7 SSS Rectified Image Showing Sonar
Contacts D-SC007, D-SC008 and D-SC009 Figure 8.8 SSS Rectified Image Showing Sonar
Contacts D-SC013 Figure 8.9 SSS Rectified Image Showing Sonar Contact
D-SC053, D-SC054 and D-SC055 |
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LIST OF APPENDICES |
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Appendix 1A Stakeholder
Engagement Activities Appendix 2A Operation
Measures and Practices Appendix 3A Water
Quality Modelling Plan for Po Toi (Southeast) Fish Culture Zone Appendix 3B Assessment
of Carrying Capacity of the Project Site Appendix 3C Contour
Plots of Water Quality Parameter Appendix 4A Literature
Review – Marine Ecology Appendix 4C Survey
Data of Subtidal and Benthic Assemblages Appendix 5A Approved
Method Statement on Fisheries Impact Assessment of Po Toi (Southeast) FCZ Appendix 8A Survey
Track Plots Appendix 8B Side
Scan Sonar Images of Sonar Contacts |
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LIST OF TABLES |
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Table
2.1 Summary of the Key
Considerations of Site Selection Criteria Table
2.2 Summary of Site Evaluation Table
2.3 Proposed Organisms and
Example Species for IMTA Table
2.4 Summary of Environmental
Benefits and Dis-benefits of the Development Options and Alternative
Mitigation Measures Considered for the Project Table
3.1 Summary of Water Quality
Objectives for Southern and Mirs Bay WCZ Table
3.2 Summary of EPD Routine
Water Quality Monitoring Data from Selected Stations of the Southern WCZ and
Mirs Bay WCZ (1986 – 2020) Table
3.3 Summary of EPD Routine
Sediment Monitoring Data from Selected Stations of the Southern WCZ and Mirs
Bay WCZ (1986 – 2020) Table
3.4 Water Sensitive Receivers
(WSRs) in the Vicinity of the Proposed FCZ Site at Po Toi (Southeast) Table
3.5 Summary of Assessment WQO
Criteria Table
3.6 Summary of Applicable
Assessment Criterion for Identified WSRs Table
3.7 Predicted Water Quality
under Baseline and Project Scenario Table
3.8 Pollution Loading
Contribution from Wasted Feed and Fish Faeces for Production Level of 1 ton
at Proposed FCZs Table
4.1 Marine Ecological Baseline
Surveys Table
4.2 Density and Indices of
Richness, Evenness and Diversity of Infaunal Assemblages at the Sampling
Locations for the Soft Bottom Habitat Surveys at the Assessment Area during the Wet Season Table
4.3 Density and Indices of
Richness, Evenness and Diversity of Infaunal Assemblages at the Sampling
Locations for the Soft Bottom Habitat Surveys at the Assessment Area during the Dry Season Table
4.4 Description of the Seabed
Recorded along Each Transect during the Qualitative Surveys (Spot Dive
Reconnaissance Check Surveys) Table
4.5 Marine Ecological
Importance of Existing Marine Reserve and SSSI within the Assessment Area Table
4.6 Ecological Importance of
Intertidal Habitats within and in the vicinity of the Project site Table
4.7 Ecological Importance of
Subtidal Hard-Bottom Habitats within and in the vicinity of the Project site Table
4.8 Ecological Importance of
Subtidal Soft Benthos Assemblages within the Project site Table
4.9 Ecological Importance of
Marine Waters within the Project site Table
4.10 Species of Conservation
Importance within the Assessment Area Table
4.11 Approximate Shortest
Distance to Marine Ecological Sensitive Receivers (SRs) around the Project
site Table
4.12 Significance of Marine
Ecological Impacts Associated with the Construction and Operation of the
Project Evaluated in accordance with EIAO-TM Table
5.1 Marine Culture Fisheries
Summary Statistics 2008-2021 (Source: AFCD) Table
5.2 Distances between the FCZs
in the Assessment Area and the Proposed FCZ at Po Toi (Southeast) Table
5.3 Main Commercial Families
of Fisheries Resources in Southeastern Hong Kong Waters from Fishery Surveys
(Source: AFCD Hong Kong Fisheries
Resources Monitoring Report (2010-2015) Table
5.4 Evaluation of Fisheries
Impacts in accordance with the Criteria described in Annex 9 of the EIAO-TM Table
6.1 Government Waste Disposal
Facilities for Construction Waste Table
6.2 Tentative Transportation
Routings for Waste Disposal of General Refuse during Construction Phase Table
6.3 Tentative Transportation
Routings for Waste Disposal of Various Waste during Operation Phase Table
6.4 Summary of Estimated Waste
Arisings and Recommended Waste Management Arrangements Table
7.1 Relationship between
receptor sensitivity and magnitude of change in defining impact significance Table
7.2 VSRs within the Predicted
Visual Envelope Table
7.3 Magnitude of Change Table
7.4 Visual Impacts Prior to
Mitigation Table
7.5 Un-mitigated and Mitigated
Impacts at the VSRs Table
8.1 Survey Types with
Objectives and Survey Spacing Table
8.2 Equipment List Table
8.3 Sonar contacts Summary
Table Table
10.1 Key Environmental Problems
Avoided, Sensitive Areas Protected and Environmental Outcomes Achieved Table
10.2 Key Recommended
Environmental Protection / Mitigation Measures and their Associated Benefits Table
11.1 Summary of Environmental
Assessment and Outcomes – Water Quality Table
11.2 Summary of Environmental
Assessment and Outcomes – Marine Ecology Table
11.3 Summary of Environmental
Assessment and Outcomes – Fisheries Table
11.4 Summary of Environmental
Assessment and Outcomes – Waste Table
11.5 Summary of Environmental
Assessment and Outcomes – Visual Impact Table
11.6 Summary of Environmental
Assessment and Outcomes – Cultural Heritage Table
11.7 Key Assessment Assumptions,
Limitation of Assessment Methodologies and related Prior Agreement(s) with
the Relevant Authorities Table
11.8 Summary of Environmental
Benefits and Dis-benefits of the Development Options and Alternative
Mitigation Measures Considered for the Project |
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