Scientific and economic logic of deep-offshore mariculture development
In recent decades,the intensification levels of aquaculture systems in China have witnessed a rapid escalation,and the ongoing intensification of aquaculture systems will also lead to an increase in N and P discharge and energy consumption per unit weight gain.In the context of the national implementation of the"double carbon"strategy and society's pursuit of an improved quality of life,the development of aquaculture is facing the"trilemma",that is,it is impossible to achieve the triple goals of N,P discharge reduction,energy saving and production increase at the same time.The deeper-offshore area possesses robust natural purification capabilities and abundant non-fossil energy resources.With appropriate models and layouts,deeper-offshore aquaculture is expected to emerge as a pivotal solution to address the"trilemma".In recent years,China's deeper-offshore aquaculture developed rapidly,and there are some problems that are being solved.However,from a more macro and long-term perspective,there are three contradictions that should be paid attention to and solved,namely,enterprise profitability versus product affordability,clean energy-based products versus carbon-intensive products,and automated operation versus reemployment of coastal fishermen.At the tactical level,market differentiation mode can be implemented to improve its profitability.At the strategic level,the large-scale integration of multi-industries should be innovated to solve aforementioned contradictions.
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维普
