海洋酸化的食物链效应及其对海洋渔业经济的潜在影响

(1.厦门大学近海海洋环境科学国家重点实验室,福建 厦门 361102; 2.广州大学环境科学与工程学院,广东 广州 510006)

海洋酸化; 食物链; 脂肪酸; 浮游植物; 海洋渔业经济

Effects of ocean acidification on the marine food chain and its potential influences on marine fishery economy
JIN Peng1,2,GAO Kunshan1*

(1.State Key Laboratory of Marine Environmental Science,Xiamen University,Xiamen 361102,China; 2.School of Environmental Science and Engineering,Guangzhou University,Guangzhou 510006,China)

DOI: 10.6043/j.issn.0438-0479.202009037

备注

海洋以超过100万t/h的速率从大气中吸收矿物燃料衍生的CO2,使上层海洋pH下降,导致海洋酸化.海洋酸化影响海洋生物的生长、繁殖和代谢,波及海洋生态系统生产力及其服务功能.海洋酸化可使毒性物质在浮游植物中累积并向浮游动物传递,且可导致大型褐藻类的碘含量增加,进而使其捕食者体内碘含量也增加.然而,海洋酸化在多营养级水平上对食物链效应的影响尚不明确.综合分析预示海洋酸化的生态效应可直接或间接影响人类健康.本文主要综述海洋酸化的食物链效应及其对海洋渔业经济的影响,并展望相关研究的发展趋势.
The ocean is taking up over 106 t/h of fossil CO2,resulting in increased dissolved CO2 and declining pH of the upper seawater,leading to ocean acidification.It has been reported that ocean acidification has tremendous impacts on the growth,development,and metabolism of marine organisms,and subsequently affects the functions and services of marine ecosystem.Ocean acidification accumulates the toxic phenolic compounds in primary producers and these compounds accumulate in secondary producers via trophic transfer.Meanwhile,ocean acidification results in the increased iodine contents in kelps and seaweeds,and subsequently leads to an increased iodine contents in predators that feed on them.However,little is known regarding effects of ocean acidification on the food chain across multiple trophic levels,which would be supposed to affect the human health directly or indirectly.In this review,we overview the research progress in effects of ocean acidification on the marine food chain and its potential influences on marine fishery industry,and pose future research perspectives.