Analysis on Coupling and Coordination Relationship Between Mariculture and Marine Ecological Environment in Changshan Islands

Abstract

There is an interactive relationship between mariculture and marine ecological environment. Based on the results of super-efficiency DEA model and Nemero index, this paper analyzed the evolution of the relationship between mariculture and marine ecological environment in Changshan Islands from 2006 to 2018 by the coupled coordination relationship model. The results indicated that: (1) The efficiency of mariculture in Changshan Islands showed an inverted U-shaped change trend, and its development level was still in the stage of extensive development, and needed to be improved in terms of technology application and scale efficiency. (2) With the rapid development of the nearshore aquaculture industry, the marine ecological environmental qualities gradually deteriorated from 2006 to 2013, but improved to a certain extent after 2014. (3) The coupling degree denoted that the relationship between mariculture and marine ecological environment had undergone a transition from antagonistic to highly coupled relationship. The coordination degree showed an upward trend from 2006 to 2011, but fluctuated after 2012 with low absolute value, which indicated that the relationship between human and sea was in a conflict game.

Keywords

• mariculture
• marine ecological environment
• coupling and coordination relationship
• changshan islands