Recently, Fisheries Research, an internationally renowned journal in the field of fisheries science, has published the latest research achievement of SHOU Team for Innovations in Pelagic Fishery Science and Technology on the effect evaluation of Chinese autonomic seasonal closure on the high seas, titled “Is seasonal closure an effective way to conserve oceanic squids—Taking Chinese autonomic seasonal closure on the high seas as an example”. Jiang Mingfeng, a master degree candidate at the College of Marine Sciences, is the first author, and Professor Chen Xinjun, the supervisor, is the corresponding author.
In this paper, autonomic seasonal closure on the high seas of the central-eastern Pacific is taken for a case study to demonstrate the effectiveness of the autonomic seasonal closure system in the management of cephalopod fisheries. Relying on the Dosidicus gigas samples collected by the National Data Center for Distant-Water Fisheries of China, this paper analyzes the changes in the mantle length composition of Dosidicus gigas before and after closure by using a Gaussian mixture model and a logistic model, to evaluate the conservation effect of autonomic seasonal closure on the high seas. By simulating the spatial distribution of the fattening and spawning grounds for Dosidicus gigas in the southeastern Pacific by using a generalized additive model, this paper validates the scientificity and rationality of the current closure zones. Research has shown that the mantle length composition of Dosidicus gigas has improved after closure; that the autonomic seasonal closure system is basically scientific and rational; and that more effective parent conservation can be realized through the dynamic adjustment of closure time and the addition of another closure zone, to further promote the sustainable development of squid resources.