AR STUDIES
Ecosystem Acoustic Surveys
 

Title Spatial Simulation of Hong Kong's Marine Ecosystem: Ecological and Economic Forecasting of Marine Protected Areas with Artificial Reefs
Year 1997-1999
Organization Fisheries Centre of the University of British Columbia , Canada
Objective To forecast cost-benefit of deploying ARs in Hong Kong
Study area Hong Kong
Method Eco-system model constructed using ECOPATH/ ECOSIM/ECOSPACE computer software
Results

Major predictions made by the ecosystem model are as follows:
1. Continuation of the status quo without mitigation measures will lead to further fishing down the marine food web and shifts in ecosystem structure with a high probability of ecosystem collapse and attendant loss of economic and social benefits.

2. Complete closure of Hong Kong waters to all fishing leads to rapid rebuilding of the marine ecosystem, however resumption of fishing at current fleet and effort levels negates these benefits in about 2 years.

3. The combination of AR and "no-take" fisheries protection areas confers significant ecological and economic benefits.

4. The benefits of large "no-take" outweigh AR placement, however, AR are beneficial in the "no plan" or status quo scenario.

5. A trawl ban in Hong Kong waters would lead to important gains in biomass, benefits to remaining fishing sectors and substantial long-tern economic gains.


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