Resources Science ›› 2021, Vol. 43 ›› Issue (10): 2130-2145.

### The impact of aquatic product trade on the intensity of fishery carbon emissions: Based on intermediary and threshold models

LI Chen1,2(), WANG Linlin1, SHAO Guilan1

1. 1. School of Economics, Ocean University of China, Qingdao 266100, China
2. Marine Development Studies Institute, Ocean University of China, Qingdao 266100, China
• Received:2021-01-14 Revised:2021-04-16 Online:2021-10-25 Published:2021-12-25

Abstract:

Identifying the impact of aquatic product trade on fishery carbon emission intensity is an important way to promote low carbon development of fishery. This study examined the impact path and income threshold effect of aquatic product trade on fishery carbon emission intensity from the three dimensions of scale effect, technology effect, and structural effect. The results show that: (1) Aquatic product trade has a strong direct promoting effect on fishery carbon emission intensity. Although it can indirectly inhibit fishery carbon emission intensity through the path of scale economy, energy-saving technology innovation, and industrial transformation and upgrading, it still increases fishery carbon emission intensity on the whole. (2) Under the constraint of income threshold, there is an inverted U-shaped relationship between aquatic product trade and fishery carbon emission intensity. Trade has a negative effect on carbon emission intensity when income is in the high zone. (3) Fishery scale expansion, industrial structure optimization and upgrading, technology improvement, and factor endowment can effectively reduce fishery carbon emission intensity. There is a threshold for the effectiveness of environmental regulation on carbon emission intensity of fisheries, and excessive environmental regulation will lead to the phenomenon of “more regulation, more pollution”. Therefore, it is necessary to accelerate the transformation of aquatic product trade growth model, optimize the fishery industrial structure, and promote the innovation of open fishery technology. On the basis of fully considering regional differences, we should reasonably control fishery environmental regulation and assume common but differentiated responsibilities for fishery emission reduction.