Abstract:Marine fishing industry is one kind of fishery carbon sinks. The carbon, which is fixed by phytoplankton and transported through the food chain/web, is removed from the sea by harvesting. According to the evaluation of carbon sink by marine fishing industry, there were about 2.83~10.08 million tons and 3.61~26.13 million tons of carbon removed annually from the Bohai Sea and Yellow Sea respectively, during 1980~2000. Although carbon sink increased with fishing production, destruction of the marine ecosystem weakened the contribution of fishing to carbon sink. So, carbon sink by fishing in the Bohai Sea and Yellow Sea reduced 23% and 27%, respectively. At the same time, marine resources decline was a disadvantage to sustainability of carbon sink by fishing. However,by enhancement and release of Fenneropenaeus orientalis, fishing carbon sink in the Bohai Sea increased 1.66×104 tons in 2009. Hence, measures including enhancement and release should be taken to restore and improve carbon sink by marine fishing industry.