Growth Characteristics and Resource Evaluation of Sebastes schlegelii in Zhangzidao Artificial Reef Area

[Objective]The paper was to formulate catchable size and total allowable catch of Sebastes schlegelii in Zhangzidao artificial reef area.[Method]Based on analysis of length-weight formula,body length and weight growth equations,and instantaneous mortality rate,the inflection age and critical age of weight growth were calculated,and the biomass of S.schlegelii in Zhangzidao artificial reef area was estimated.[Result]The growth equation of body length was Lt=412.5×[1-e^-0.21（t＋0.65）]and the growth equation of body weight was Wt=1 734.2×[1-e^-0.21（t＋0.65）]^2.92.The inflection age and critical age for weight growth of S.schlegelii were 4.45 and 4.82 a,respectively.The biomass in Zhangzidao artificial reef area was about 456.8 t.[Conclusion]For S.schlegelii flock in Zhangzidao artificial reef area,the catchable length was about 271.2-281.7 mm,the catchable weight as about 509.4-569.5 g,and the total allowable catch was about 60.43 t.

渔业可追溯研究的文献计量学与可视化分析

为了解渔业可追溯领域的研究现状和发展趋势,本研究基于Web of Science(WOS)数据库的核心合集数据库,采用文献计量学软件CiteSpace和VOSviewer,对2001-2021年全球渔业可追溯领域文献发文量和主题、发文国家和机构分布、文献和期刊被引情况、关键词共现和研究趋势等方面进行可视化分析。结果表明,渔业可追溯领域的文献数量呈逐年增加趋势,学科融合比较紧密,以食品科学与技术、环境科学与生态学和渔业学为基础,同时涉及农学、国际关系和海洋与淡水生物学等;机构之间发文量差距较大,各机构间独立开展研究,与其他机构之间合作较少;相关研究文献主要发表在海洋政策、食品控制等领域的期刊;研究重点集中在标识和鱼类等方面,关键词聚类主要包括“鱼和渔业产品(fish and fishery products)”“追溯和身份保存系统(traceability and identity preservation system)”“食品安全(food safety)”和“食品科学(food science)”等主题;近几年的研究主要聚焦于管理、贸易、启示和源产地等。综合分析结果,建议进一步加强机构间的合作交流,为今后的相关研究提供参考,以推动渔业可追溯的高质量发展。