With unsustainable fishing affecting about 30 percent of the ocean’s wild fish populations and most of the rest already fished to the limit, aquaculture is playing an ever bigger role in putting fish on the dinner table. Today, fish farms are the fastest-growing source of animal protein — on the rise, globally, at about 5 percent a year. In the lead is China, which accounts for about 60 percent of farmed marine products worldwide. China is also a leading provider of farmed fish to the US, including tilapia, one of the most popular farm-raised marine products sold in America. Farmed fish have some environmental benefits compared with other sources of animal protein. In addition to reducing pressures on wild fish populations, they are climate-change friendly. A pound of fish has about one-seventh of the carbon footprint of a pound of beef. But large-scale aquaculture has created new problems, including overfishing of species caught for feed on the marine farms. The China Blue Sustainability Institute, China’s first nongovernmental organization focused on sustainable fishing and aquaculture, says many farms in China do not practice sustainable aquaculture. Overuse of antibiotics and lack of wastewater treatment are among her concerns. China Blue is headquartered in an apartment-turned-office on China’s southern tropical island of Hainan. It’s about a 90-minute drive away from the rural district of Wenchang, home to hundreds of fish farms. These farms release untreated water back into the sea that is contaminated with fish waste, as well as with leftover fish feed and medicines such as antibiotics. The government has taken action. It’s banned the carcinogenic antibiotics, and it’s started arresting and sentencing farmers who violate regulations. In Wenchang, the local government has created a fund for a water treatment plant. Private businesses have also started to take action, thanks in part to the concerns of American consumers. Wenchang is a major source of tilapia exported to the US. That helped get the industry to promote environmentally sound practices. Han Xuefeng, heads the two-year-old Hainan Tilapia Sustainability Alliance. He says for the tilapia industry, boosting farm standards is a matter of life or death. Han’s association has found a partner in the island’s most important export market. Two years ago, The Fishin’ Company, America’s largest tilapia importer, stepped up to the plate. Manish Kumar, the company’s founder and president, started coming to Hainan to build a coalition for a safer, more environmentally sound tilapia industry. Together with the local industry association, his company is sponsoring training and offering financial incentives to a few model farms that invest in improvements. The idea is, others will follow suit if they see it makes financial sense. Many of the small fish farmers have no prior professional training. So, The Fishin’ Company starts with simple things, like helping farmers keep records. The farmers track weather conditions and water temperature, which affect fish health. And the farmers keep records of the feed and the medicine they use. The plan is to help more farmers get international sustainable farming certification by third parties. As America’s largest tilapia importer and the supplier for Wal-Mart, Kumar says he has a lot at stake. “I’m gambling for the future prosperity of this industry, which has given me so much, which is my career, and I’m gambling very hard for positive change.” His ideas include increasing tilapia’s omega-3 levels, the fish oil that may help lower risk of heart disease, cancer and arthritis. To help reassure customers who are nervous about what their fish are eating, next year Kumar is planning a state-of-the-art oversight system that involves cameras, QR codes and consumer monitoring. We will now proceed to do something no one in the industry has done before. Put a camera system into the farm area.” In this scenario, customers buy a bag of fish and scan the QR code on the bag. Up pops a picture of the farm that raised the fish, as well as information on what the fish is being fed. Kumar says the extra cost will be negligible. As the largest supplier of tilapia, he expects to be able to take advantage of economies of scale. “I challenge the rest of the industry to do it. And then the people who don’t do it will be the ones on the hot seat.” Meantime, at local universities on Hainan, experts are looking to traditional Chinese practices to solve the problem of excessive use of antibiotics. Dr. Guo Weiliang conducts experiments at Hainan University using Chinese herbal medicine. “After we noticed the bad effects of antibiotics, we realized we can do something, for example, use Chinese herbs,” he said. Guo says the idea is to boost the immune system before the fish get sick. This reduces the need for antibiotics. Guo says he’s had good results so far, however, it will take time to identify and isolate the active ingredients, and reduce the cost of herbal treatments. He says there are not enough researchers with expertise in fish and Chinese medicine, as well as the ability to apply western scientific techniques to analyze herbal remedies. At the Agriculture Ministry in Beijing, Fisheries Bureau Deputy Director General Li Shumin says the government favors such research. Source: http://news.wbfo.org
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