A Review of the Impact of China’s Kelp Aquaculture on Marine Eutrophication and the Research on the Integrated Development Path with Offshore New Energy

Abstract

With the rapid development of industry and aquaculture in China, the discharge of land-based pollutants and effluents from nearshore aquaculture is increasing, negatively impacting the water quality of coastal waters. This paper introduces the impact of shellfish and macroalgae on seawater quality and the mechanisms by which they purify seawater quality. Based on this, the paper explores the integrated development path of open-shellfish and seaweed aquaculture with seawater quality management. Firstly, by utilizing the characteristics of shellfish and seaweed aquaculture in constructing a pathway for marine ecological product realization, it not only promotes the value realization of marine ecological products but also achieves the goal of purifying coastal seawater quality. Secondly, it explores the integration of shellfish and seaweed aquaculture with offshore photovoltaics and offshore wind power, fully utilizing the spatial resources of wind power and photovoltaic rights in the sea, and leveraging their ability to purify seawater quality to improve the water quality of coastal waters, while also bringing certain economic benefits to reduce the investment payback period of offshore wind power and photovoltaics.

Keywords

• shellfish aquaculture
• macroalgae aquaculture
• eutrophication of seawater management
• realization of ecological product value
• offshore photovoltaics
• offshore wind power