Abstract:Selecting the right species to release for marine stock enhancement is not only the primary element of the practice, but also a precondition for ensuring positive effects. Selecting released species to restore ecosystems is the focus of future enhancement research. At present in China, the main species released for enhancement are those that can be mass cultured, with high economical value and low culture cost. These species are released in marine areas with short food chains and high resources. However, there are relatively few studies matching interspecific ecological relationships and the stability of community structure in marine waters targeted for stock enhancement, which is key to the practice. Herein, we used the abundance biomass comparison curve (ABC curve), to analyze the stability of both fish and nekton community structure in Laoshan Bay during the spring and summer of 2013-2015, and further discuss the selection of species for release. The results showed that:(1) fish community structure in Laoshan Bay in the spring and summer of 2013-2015 was relatively simple and unstable, and in a disturbed state; (2) nekton community structure was much more complex and stable than fish community structure during this time; (3) by comparing the annual and seasonal stability of community structure of both fish and nekton, we found that played an important role in maintaining the stability of the nekton community structure of Laoshan Bay in the spring, but played a vital role in maintaining stability in the summer. In conclusion, fish community structure in Laoshan Bay was relatively simple, but crabs and shrimp maintained the stability of the community structure of fishery resources. Crabs and shrimp should be given particular consideration when selecting species to release in this area. It was found that released in Laoshan Bay every spring increased the stability of nekton community structure during the summer in this area. The methods and results in this study can provide a scientific basis for the selection of released species.