Related Experiment Video
Updated: Jul 11, 2026

Ecotoxicological Method with Marine Bacteria Vibrio anguillarum to Evaluate the Acute Toxicity of Environmental Contaminants
Published on: May 26, 2017
Evaluation and optimization of mariculture ecological efficiency under technological heterogeneity - New evidence
1Business School, Qingdao University, Qingdao, PR China; Qingdao University, No. 308, Ningxia Road, Shinan District, Qingdao, Shandong 266061, China.
Abstract:
This paper combines the meta-frontier analysis framework with the SBM-DEA model based on undesirable outputs to thoroughly reveal the mechanism of ecological efficiency differences in China's mariculture. This paper accurately identifies the weak links in ecological efficiency in various regions, thereby achieving a precise evaluation of mariculture ecological efficiency within the framework of technological heterogeneity. The results indicate that under the meta-frontier, the annual average ecological efficiency of mariculture in coastal areas of China during the sample period is 0.586, with a 41.4 % efficiency improvement space. However, under the group frontier, the annual average ecological efficiency is 0.783. The MEI in the BR economic zone and the YRD economic zone respectively stem from MI and TI, whereas in the PRD economic zone, the difference in the proportions of management inefficiency and technological inefficiency is not significant. Finally, this paper proposes four types of improvement paths.
More Related Videos
Related Concept Videos
Trophic Efficiency
Marine Microbial Ecology
Freshwater Microbial Ecology

