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A new study on the future of fish in the South China Sea reveals that key species consumed in Hong Kong are under serious threat from overfishing and habitat destruction, and unless immediate action is taken it will be too late.
Some of the topline findings of the study, Boom or Bust, The Future of Fish in the South China Sea, show that some marine resources have been fished down to as low as 5 per cent compared to the 1950s, with others reduced to just 10 percent of their populations since the mid-1990s. Even in more remote fishing locations, catch rates have declined 3 to 4 times over the past two decades. Conducted by the University of British Columbia (UBC) Economic Research Unit and funded by Hong Kong-based ADM Capital Foundation and RS Group, the study offers a pathway to a more sustainable future.
“The study shows that to rebuild biomass of key groups to a healthy level, fishing efforts of all fishing fleets have to be substantially reduced,” said UBC’s Rashid Sumaila, principal investigator for the project.
Species under threat include the Napoleon Wrasse and the Coral Grouper, both highly prized in Hong Kong. Relative abundance of these two reef fish has declined by 80 percent in the past eight years alone.
While pollution and water quality is partly responsible, overfishing is the main culprit, and fishing methods play a key role in impacts on the environment.
“One of the findings of the study demonstrates that the way fish are caught is no longer sustainable,” said Doug Woodring, Co-Founder of Hong Kong’s Ocean Recovery Alliance. “Not only are species being over-fished but the current fishing methods are destroying some coral reef habitats at a rate of 16 percent per decade. It is time to take action before it is too late.”
The study also contains projections through to 2045, with dire consequences for our future if action is not taken.
If nothing is done, by 2045, relative to 2015 fish stocks, all species studied will experience a decrease in biomass (quantity of fish in the ocean) ranging from 9 to 59 percent as a result of overfishing, ocean warming, ocean acidification and changes in primary productivity. We must urgently improve fisheries management and consider our impact on the ocean via CO2 emissions.
“The most vulnerable groups include grouper, large sharks, threadfin bream and large croaker, which are projected to drop by 50 percent or more during this period,” said UBC’s William Cheung, a co-author of the report.
The good news is that it is not too late to take action. The UBC scientists also conducted a best case scenario analysis under a sustainable management fishing regime with lowered global CO2 emissions. This indicates that efforts to improve fisheries management and reduce carbon emissions would have a positive impact on the wild population biomass of all species except crabs (due to their predators).
Either way, there are economic implications to these scenarios, both potentially with a loss of income and livelihood for fisherman, and an increase in the cost of fish to the consumer. If we engage in better resource management, however, there is a chance to modify practices and sustain stock levels, so that fisheries can still be productive for those who rely on them today.
“This study should be of interest to anybody who likes to eat seafood and cares about society,” said Yvonne Sadovy, a professor at Hong Kong University’s School of Biological Sciences. “Major urban centres like Hong Kong depend heavily on importing seafood, while hundreds of thousands of people in developing countries need wild fish for food and to support their families.”
The stress on regional fishing resources is a reason that November also marks the start of the Kin Hong “Healthy” Seafood Festival.
Organised by Ocean Recovery Alliance and ADM Capital Foundation, the aim of the festival is to raise public awareness through education and increased variety from our restaurant and catering industries, giving people the option to consume sustainable seafood.
It also aims to help restaurateurs access sustainable seafood, with the intention of increasing availability and visibility in the market place. A selection of prominent Hong Kong restaurants, hotels and organisations have already pledged their support, including Four Seasons Hotel Hong Kong, Grand Hyatt Hong Kong, Café Gray, Sohofama, Café Deco, Ocean Park, the University of Hong Kong and the Hong Kong Jockey Club.
The full report, Boom or Bust, the Future of Fish in the South China Sea, can be downloaded here: http://oceancanada.org/wp-content/uploads/2015/03/FCWP_2015_99_Witter.pdf
For more information on the Kin Hong “Healthy” Seafood Festival, visit: http://www.oceanrecov.org/activities/events/kin-hong-seafood-festival.html
List of Restaurants, Hotels and Organizations Participating in Kin Hong Seafood Festival:
ADM Capital Foundation
ADM Capital Foundation (www.ADMCF.org) was established in 2006 by the partners of Hong Kong-based investment advisor, ADM Capital www.admcap.com to fund innovative approaches to promoting equity and environmental conservation in Asia. The Foundation helps organisations in Asia achieve positive social and environmental impact and aims to foster sustainable growth in its local partners by providing not only funding but also specific and relevant organisational support.
Ocean Recovery Alliance
Registered in Hong Kong and California, Ocean Recovery Alliance forges new ways of thinking, technologies, creativity and collaborations to introduce innovative projects and initiatives that will help improving our ocean environment. This includes creating business opportunities for local communities when applicable, and addressing some of the pressing issues that our ocean faces today. It is one of the first the NGO’s to work with both the United Nations Environment Programme (UNEP) and the World Bank on their respective ocean programmes related to plastic pollution. It also runs the Ocean in Motion Film Festival each year, the only annual ocean film festival in Asia.