Studies on the potential and prospects of carbon sink fishery of Tianjin

MA Lin; LI Chunyan; LI Mingze; LUO Xin; DING Ziyuan; MENG Muhan; XU Lintong; JIANG Jufeng

doi:10.13984/j.cnki.cn37-1141.2024.04.011

Abstract：In order to understand the potential of carbon sink fishery of Tianjin,the fishery production and carbon removal of carbon sink organisms identified from 2013 to 2022 were calculated.The results showed that the average yield of fishery output of Tianjin is 335300 tons in this period,of which the av-erage annual freshwater aquaculture output is 271200 tons,accounting for 80.89％of the total.The o-verall carbon removal from fishery was stable at first,then decreased,and finally stabilized.The aver-age annual carbon removal was 16500 tons.The average annual carbon removal of freshwater aquacul-ture was 10900 tons,accounting for 66.42％.The carbon removal of silver carp was the highest,4900 tons.The average annual carbon removal of freshwater fishing industry was 900 tons,accounting for 5.39％.There was no seawater carbon sink organism was cultured,much less the carbon sink varieties of shellfish and algae.The carbon removal amount of mariculture was not discussed.The average an-nual carbon removal of seawater fishing industry was 4700 tons,accounting for 28.19％of the total.The rice-fish integrated farming is developing rapidly.Tianjin may take this opportunity to improve further the carbon sink capacity by practicing of carbon sink fishery strategy,thus improving the feed-ing efficiency,leveraging the carbon sink function of natural fisheries and optimizing aquaculture struc-tures.In this way,Tianjin may respond well the double carbon strategy of China,and contribute sig-nificantly to carbon neutrality targeting.