Section    Title                                                                                                                           Page

10.1            Introduction_______________________________________________________________ 10-1

10.2            Environmental Legislation, Standards and Guidelines______________________________ 10-1

10.3            Assessment Methodology____________________________________________________ 10-1

10.4            Baseline Condition_________________________________________________________ 10-1

10.5            Identification, Prediction and Evaluation of Environmental Impact______________________ 10-2

10.6            Mitigation of Adverse Environmental Impact_______________________________________ 10-2

10.7            Evaluation of Residual Impact_________________________________________________ 10-2

10.8            Environmental Monitoring and Audit_____________________________________________ 10-2

10.9            Conclusion_______________________________________________________________ 10-3

10.10          References_______________________________________________________________ 10-3

 



10.1          Introduction

This section presents the assessment of the potential fisheries impacts associated with the construction and operation phases of the proposed BCP and associated facilities, in accordance with section 3.4.10 of the EIA Study Brief (ESB-199/2008).

Aquaculture resources and pond culture activities have been assessed in this section. Prediction of potential impacts on any active or abandoned fishponds has been addressed.

10.2          Environmental Legislation, Standards and Guidelines

The following legislation and guidelines are applicable to the fisheries impact assessment in Hong Kong:

¡      Environmental Impact Assessment Ordinance (Cap. 499) – Technical Memorandum on Environmental Impact Assessment Process (EIAO-TM), Annexes 9 and 17.

¡      Fisheries Protection Ordinance (Cap. 171).

10.3          Assessment Methodology

The fisheries impact assessment was undertaken following the criteria and guidelines as specified in Annexes 9 and 17 of the EIAO-TM and section 3.4.10 of the EIA Study Brief. The Study Area for assessment includes the active and abandoned fishponds within 500m from the boundaries of the Project and any areas likely to be impacted by the construction or operation of the Project, as stipulated in clause 3.4.10.2 of the EIA Study Brief.

Literature regarding the activities and production of pond fish culture within the Study Area including both published and unpublished materials was reviewed. Ground truthing on the status of any fishponds was conducted between March and June 2010 along with the habitat surveys for ecological impact assessment purposes. The status of fishponds was evaluated based upon the management conditions of the ponds such as presence of commercial fishes, evidence of recently used pond culture equipment, presence of fish-rearing paraphernalia and evidence of trimming of vegetation growing on pond bund.

10.4          Baseline Condition

10.4.1       Description of the Environment

In the northeast New Territories (NENT) area where the Project locates, there is no indication of the presence of any pond fish culture activities. Neither commercial fishponds nor adjoining fishponds are found in the NENT area. Instead of pond culture fisheries, the NENT area is used as agricultural purpose as illustrated in the zoning of land uses for the Study Area in Figures 11.4.0 to 11.4.6.

Other areas with fish ponds and associated water systems that may be indirectly impacted by the Project can be found in the northwest New Territories (NWNT) area, where pond fish culture resources and activities are located, with freshwater and brackish fishponds. Pond fish species are reared for commercial purpose. The adjoining fishponds at the NWNT area also form part of the Wetland Conservation Area and perform ecological functions for conservation of waterbirds.  According to the latest available information from Agriculture, Fisheries and Conservation Department (AFCD) on aquaculture activities in Hong Kong in 2009, the local inland ponds covered an area of approximately 1,160 ha and produced 2,105 tonnes of freshwater fishes. About 92% of the fish farms are engaged in polyculture (bighead carp, grass carp, common carp and silver carp in combination with tilapia or grey mullet). The remaining 8% practise monoculture of carnivorous species such as giant groupers, sea breams and spotted scat in brackish fishponds near to the coastline. Majority of the fry and fingerlings are imported from the Mainland and Taiwan. Some of the grey mullet fry may also be caught in local coastal waters. Traditionally, fry are stocked in early spring and most fish species reach marketable size in 8 to 12 months (AFCD, 2010).

10.4.2       Condition of Pond Fish Culture Resources and Activities within the Study Area

It has been identified by ground truthing that only very few ponds can be found within the Study Area. Some of them are abandoned irrigation ponds formerly used for cultivation. Some of them are currently used as fung shui ponds at villages for keeping ornamental fish species (e.g. koi), for example, the pond at Loi Tung village. No active or abandoned fishpond has been identified within the Study Area. 

There is no indication of any pond fish culture resources or activities within the Study Area.   

10.5          Identification, Prediction and Evaluation of Environmental Impact

Pond fish culture resources and activities were not found within the Study Area. Hence, there is no indication of any pond fish culture activities in the Study Area. 

With proper implementation of the control measures for site drainage, surface runoff and sewage discharge during construction and operational phases of the Project (see Section 5), it is unlikely that there would be any indirect impact on fish ponds in the NWNT Deep Bay area due to such effluent discharge into the Shenzhen River.  As such, fisheries impact arising from the construction or operation of the Project is not anticipated.

10.6          Mitigation of Adverse Environmental Impact

Pond fish culture resources and activities were not identified within the Study Area. With the effluent control measures in place (see Section 5), the Project is unlikely to have indirect impacts on the pond fish culture resources and activities in the NWNT area.  Therefore, no mitigation measures (other than the effluent control measures) are considered necessary.

10.7          Evaluation of Residual Impact

Pond fish culture resources and activities were not identified within the Study Area.  With the effluent control measures in place (see Section 5), the Project is unlikely to have indirect impacts on the pond fish culture resources and activities in the NWNT area.  Therefore, no residual fisheries impact is anticipated.

10.8          Environmental Monitoring and Audit

Pond fish culture resources and activities were not identified within the Study Area. With the effluent control measures in place (see Section 5), the Project is unlikely to have indirect impacts on the pond fish culture resources and activities in the NWNT area. Therefore, no monitoring and audit programme for fisheries impact is considered necessary.

10.9          Conclusion

The baseline review and ground truthing conducted for fisheries impact assessment have identified no active fishponds, pond fish culture resources or activities within the Study Area.  With the effluent control measures in place (see Section 5), the Project is unlikely to have indirect impacts on the pond fish culture resources and activities in the NWNT area.   Therefore, no fisheries impact arising from construction and operation of the Project is anticipated and no mitigation measures (other than the effluent control measures) are required.

10.10    References

AFCD. (2010). Marine fish culture, pond fish culture and oyster culture. Retrieved April 9, 2010, from http://www.afcd.gov.hk/english/fisheries/fish_aqu/fish_aqu_mpo/fish_aqu_mpo.html