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稳定同位素技术在鲨鱼摄食和洄游行为研究中的应用

李云凯1,2,3**   

  1. (1上海海洋大学海洋科学学院, 上海 201306; 2国家远洋渔业工程技术中心, 上海 201306; 3大洋渔业资源可持续开发省部共建教育部重点实验室, 上海 201306)
  • 出版日期:2014-09-18 发布日期:2014-09-18

Review on the feeding ecology and migration patterns of sharks using stable isotopes.

LI Yun-kai1,2,3   

  1. 1College of Marine Sciences, Shanghai Ocean University, Shanghai 201306, China; 2National Engineering Research Centre for Oceanic Fisheries, Shanghai 201306, China; 3The Key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources, Ministry of Education, Shanghai 201306, China)
  • Online:2014-09-18 Published:2014-09-18

摘要: 随着稳定同位素分析技术的不断成熟,其在生态学领域中的应用也增长迅速,并成为动物摄食生态学的重要研究工具.鲨鱼因其在生物系统进化过程中的独特地位和海洋生态系统中的重要作用已成为海洋食物网研究的重点,然而国内针对鲨鱼摄食习性和洄游行为等方面的研究仍处于起步阶段.本文在总结了国内外鲨鱼稳定同位素分析组织样品选取和样品预处理方法的基础上,系统归纳了稳定同位素技术在鲨鱼摄食生态学,尤其在其摄食和洄游行为研究领域中的应用,着重分析稳定同位素技术在鲨鱼稳定同位素判别值和更新速率、食性分析、营养级评估、洄游路径分析和生态位分布等核心问题上的应用现状和发展前景,以期为国内学者开展鲨鱼类基础生物、生态学研究提供有益参考.

Abstract: With the rapidly increasing use of stable isotope analysis (SIA) in ecology, it becomes a powerful tool and complement to traditional methods for investigating the trophic ecology of animals. Sharks play a keystone role in marine food webs as the apex predators and are recently becoming the frontier topic of food web studies and marine conservation because of their unique characteristics of evolution. Recently, SIA has recently been applied to trophic ecology studies of shark species. Here, we reviewed the current applications of SIA in shark species, focusing on available tissues for analyzing, standardized analytical approaches, diettissue discrimination factors, diet shift investigation, migration patterns predictions and nichewidth analyses, with the aim of getting better understanding of stableisotope dynamics in shark biology and ecology research.