头足类资源评估模型及其影响因素的研究进展  

A brief review of stock assessment methods for cephalopod and related influencing factors

作　　者：李纲[1,2,3] 曹洋铭 陈新军 LI Gang;CAO Yangming;CHEN Xinjun(College of Marine Sciences,Shanghai Ocean University,Shanghai 201306,China;Key Laboratory of SustainableExploitation of Oceanic Fisheries Resources,Ministry of Education,Shanghai 201306,China;National Distant-waterFisheries Engineering Research Center,Shanghai 201306,China)

机构地区：[1]上海海洋大学海洋科学学院,上海201306 [2]大洋渔业资源可持续开发教育部重点实验室,上海201306 [3]国家远洋渔业工程技术研究中心,上海201306

出　　处：《上海海洋大学学报》2023年第6期1245-1254,共10页Journal of Shanghai Ocean University

基　　金：国家重点研发计划(2019YFD0901404)。

摘　　要：头足类是海洋生态系统的重要组成部分,也是目前世界上最具开发潜力的渔业资源之一,对该资源进行科学评估是实现其可持续利用的关键。不同于传统的鱼类种群,头足类具有生命周期短、生长速度快、种群结构复杂等生物学特点,且其资源量极易受到海洋环境波动的影响,使得头足类种群动力学和资源评估研究与传统鱼类资源相比面临着更多困难和挑战。本文总结了头足类的生活史特征及其资源与海洋环境因子的关系对资源评估的影响,并梳理了主要评估模型对头足类资源评估的适用性。分析认为,当前经过改进的衰减模型和剩余产量模型应用最为广泛,但仍无法制定出具有时效性的渔业管理措施。为此,文章从提高输入参数的准确度和可靠性、开展长期系统的资源环境调查和开发新的评估模型等方面提出了优化头足类资源评估研究的建议。Cephalopod holds significant importance in marine ecosystems as it occupies a wide range of trophic level in the marine food web and has a high production to biomass ratio.As a source of high-quality animal protein,cephalopod has become one of the world's most exploitable fishery resources,landings of which have increased rapidly in recent decades.In contrast to traditional fish stocks,cephalopod has a variety of special biological characteristics,including short life cycle,rapid growth rate,and complex population structure.Furthermore,the biomass of cephalopod is highly susceptible to fluctuations in the marine environment,making the study of cephalopod population dynamics and stock assessment more difficult and challenging than for traditional fish stocks.That is because most assessment models assume the existence of multiple year classes and population dynamics associated with iteroparity.This paper provided an overview of the life history characteristics of cephalopod and the relationship between its resources and marine environmental factors;teased out the suitability of stock assessment models applied to cephalopod,such as the surplus production model,delay-difference model,depletion model,age structure model,etc.;and pointed out the problems and limitations of the current research on cephalopod stock assessment.Therefore,based on the comprehensive analysis conducted,it can be concluded that the research is still in its preliminary stage.The improved depletion model and surplus production model are the most commonly used,but neither is able to develop time-sensitive fisheries management measures.We finally proposed the development direction for optimizing the research on cephalopod stock assessment from the following three aspects:improving the accuracy and reliability of input parameters,conducting long-term systematic investigations of environment and resources,and developing new assessment models.

关 键 词：头足类 资源评估模型 影响因素 

分 类 号：S932[农业科学—渔业资源]