基于稳定同位素研究海州湾短吻红舌鳎的摄食生态

doi:10.13287/j.1001-9332.202103.036

应用生态学报 ›› 2021, Vol. 32 ›› Issue (3): 1080-1086.doi: 10.13287/j.1001-9332.202103.036

基于稳定同位素研究海州湾短吻红舌鳎的摄食生态

陈皖^1,3, 任晓明^1,3, 徐宾铎^1,3, 张崇良^1,3, 任一平^1,2,3, 薛莹^1,3*

¹中国海洋大学水产学院, 山东青岛 266003;
²青岛海洋科学与技术试点国家实验室, 海洋渔业科学与食物产出过程功能实验室, 山东青岛 266237;
³海州湾渔业生态系统教育部野外科学观测研究站, 山东青岛 266003

收稿日期:2020-06-23 接受日期:2020-11-30 出版日期:2021-03-15 发布日期:2021-09-15
通讯作者: * E-mail: xueying@ouc.edu.cn
作者简介:陈皖, 女, 1997年生, 硕士研究生. 主要从事摄食生态学研究. E-mail: 519673036@qq.com
基金资助:
国家重点研发计划项目(2018YFD0900904)、国家自然科学基金项目(31772852)和山东省支持青岛海洋科学与技术试点国家实验室重大科技专项(2018SDKJ0501-2)资助

Understanding the feeding ecology of Cynoglossus joyneri in Haizhou Bay based on stable isotope analysis

CHEN Wan^1,3, REN Xiao-ming^1,3, XU Bin-duo^1,3, ZHANG Chong-liang^1,3, REN Yi-ping^1,2,3, XUE Ying^1,3*

¹College of Fishery, Ocean University of China, Qingdao 266003, Shandong, China;
²Pilot National Laboratory for Marine Science and Technology (Qingdao), Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao 266237, Shandong, China;
³Field Observation and Research Station of Haizhou Bay Fishery Ecosystem, Ministry of Education, Qingdao 266003, Shandong, China

Received:2020-06-23 Accepted:2020-11-30 Online:2021-03-15 Published:2021-09-15
Contact: * E-mail: xueying@ouc.edu.cn
Supported by:
National Key R&D Program of China (2018YFD0900904), the National Natural Science Foundation of China (31772852) and Marine S&T Fund of Shandong Province for Pilot National Laboratory for Marine Science and Technology (Qingdao) (2018SDKJ0501-2)

摘要/Abstract

摘要： 根据2018年春季和秋季在海州湾海域进行底拖网调查采集的样品,基于碳氮稳定同位素分析,对海州湾短吻红舌鳎的摄食生态进行研究。结果表明: 海州湾短吻红舌鳎的δ¹³C值平均值为(-17.79±1.00)‰,其范围在-20.75‰～-15.91‰;δ¹⁵N值平均值为(9.37±1.33)‰,其范围在5.98‰～12.02‰。Pearson相关分析表明,海州湾短吻红舌鳎δ¹³C值与体长呈显著负相关,δ¹⁵N值与体长呈显著正相关。根据δ¹⁵N值计算得出海州湾短吻红舌鳎的平均营养级为(3.43±0.97),且营养级与体长呈显著正相关。海州湾短吻红舌鳎摄食的饵料生物有鱼类、蟹类、虾类、软体动物、多毛类、浮游生物和颗粒有机物等,其中虾类的营养贡献率最高。秋季鱼类、蟹类、虾类对短吻红舌鳎的营养贡献率较春季有所增高。本研究将有助于揭示短吻红舌鳎在海州湾生态系统物质循环和能量流动中的地位和作用,为其资源保护和合理利用提供科学依据。

关键词: 海州湾, 稳定同位素, 短吻红舌鳎, 摄食生态, 营养级

Abstract: We analyzed the feeding ecology of Cynoglossus joyneri by carbon and nitrogen stable isotope analysis based on the samples collected from the bottom trawl surveys during spring and autumn of 2018 in Haizhou Bay, China. The results showed that the δ¹³C and δ¹⁵N values of C. joyneri ranged from -20.75‰ to -15.91‰ and from 5.98‰ to 12.02‰, respectively. The mean values of the δ¹³C and δ¹⁵N were (-17.79±1.00)‰ and (9.37±1.33)‰, respectively. There was a significantly negative correlation between the δ¹³C values and standard length and a positive correlation between the δ¹⁵N values and standard length. The mean trophic level of C. joyneri was (3.43±0.97). There was a significantly positive correlation between the trophic level and standard length. The dominant prey groups of C. joyneri were fish, crabs, shrimps, mollusca, polychaeta, plankton and particle organic matter (POM). The trophic contribution of shrimps was the highest among these prey groups. The trophic contribution of fish, crabs and shrimps was higher in autumn than those in spring. This study would help to understand the role of C. joyneri in the material cycling and energy flow in Haizhou Bay ecosystem, and provide scientific basis for the protection and rational utilization of this species.

Key words: Haizhou Bay, stable isotope, Cynoglossus joyneri, feeding ecology, trophic level

陈皖, 任晓明, 徐宾铎, 张崇良, 任一平, 薛莹. 基于稳定同位素研究海州湾短吻红舌鳎的摄食生态[J]. 应用生态学报, 2021, 32(3): 1080-1086.

CHEN Wan, REN Xiao-ming, XU Bin-duo, ZHANG Chong-liang, REN Yi-ping, XUE Ying. Understanding the feeding ecology of Cynoglossus joyneri in Haizhou Bay based on stable isotope analysis[J]. Chinese Journal of Applied Ecology, 2021, 32(3): 1080-1086.

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基于稳定同位素研究海州湾短吻红舌鳎的摄食生态

Understanding the feeding ecology of Cynoglossus joyneri in Haizhou Bay based on stable isotope analysis

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