热带海洋学报 ›› 2016, Vol. 35 ›› Issue (2): 66-75.doi: 10.11978/2014133CSTR: 32234.14.2014133

• 海洋生物学 • 上一篇    下一篇

夏季北部湾九种经济鱼类的食性类型及营养生态位初步研究

杨璐1, 2, 曹文清1, 2, 林元烧1, 2, 陈颖涵1, 2, 林昭进3, 王雪辉3   

  1. 1. 厦门大学海洋与地球学院, 福建 厦门 361005; 2. 厦门大学海洋生物多样性与全球变化实验室, 福建 厦门 361005; 3. 中国水产科学研究院南海水产研究所, 广东 广州 510300
  • 收稿日期:2014-11-18 修回日期:2015-10-16 出版日期:2016-02-29 发布日期:2016-02-29
  • 通讯作者: 林元烧。E-mail: yslin@xmu.edu.cn
  • 作者简介:杨璐(1989—), 女, 辽宁省鞍山市人, 硕士, 主要从事海洋浮游生物生理生态学研究。E-mail: yanglu@stu.xmu.edu.cn
  • 基金资助:
    国家海洋公益项目(201005012)

Preliminary study on feeding habits and trophic niche of nine economic fish species in Beibu Gulf in summer

YANG Lu1, 2, CAO Wenqing1, 2, LIN Yuanshao1, 2, CHEN Yinghan1, 2, LIN Zhaojin3, WANG Xuehui3   

  1. 1. College of Ocean and Earth Sciences, Xiamen University, Xiamen 361005, China; 2. Laboratory of Marine Biodiversity and Global Change (MBiGC), Xiamen University, Xiamen 361005, China; 3. South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China;
  • Received:2014-11-18 Revised:2015-10-16 Online:2016-02-29 Published:2016-02-29
  • Contact: LIN Yuanshao. E-mail: yslin@xmu.edu.cn
  • Supported by:
    National Marine Public Welfare Project (201005012)

摘要: 应用Shannon-Wiener指数、Levins指数和均匀度指数, 分析了北部湾2012年7月9种个体数量占优势的经济鱼类的食物组成和食性类型, 并对其营养生态位进行了初步研究。研究表明, 这9种经济鱼类可划分为3种食性类型: 日本发光鲷Acropoma japonicum、日本竹筴鱼Trachurus japonicus、蓝圆鲹Decapterus maruadsi和六指多指马鲅Polydactylus sextarius为浮游生物食性, 主要以桡足类为食; 二长棘犁齿鲷Evynnis cardinalis、日本鲱鲤Upeneus japonicus和刺鲳Psenopsis anomala为底栖生物食性, 主要以长尾类为食; 多齿蛇鲻Saurida tumbil和白姑鱼Pennahia argentata为游泳动物食性, 以鱼类饵料占较大优势。9种鱼中, 白姑鱼的营养生态位宽度值最高, 多齿蛇鲻的营养生态位宽度值最低。夏季北部湾这9种经济鱼类的营养生态位宽度与其摄食习性和饵料基础密切相关。

关键词: 食性类型, 营养生态位, 北部湾

Abstract: In this study, based on fish samples collected in Beibu Gulf in July 2012, diet composition, feeding habits and trophic niche breadth of nine economic fish species were analyzed using the Shannon-Wiener index, Levins index and evenness index. Results showed that nine economic fish species could be classified into three types according to feeding habits, referred to as plankton predators (including Acropoma japonicum, Trachurus japonicus, Decapterus maruadsi, and Polydactylus sextarius), benthic predators (including Evynnis cardinalis, Upeneus japonicus and Psenopsis anomala) and nekton predators (Saurida tumbil and Pennahia argentata). Trophic niche breadth of Pennahia argentata was the highest (Shannon-Wiener index=0.938 and Levins index=2.238), while trophic niche breadth of Saurida tumbil was the lowest (Shannon-Wiener index=0 and Levins index=1). The trophic niche breadth of the nine economic fish species in summer in Beibu Gulf was strongly influenced by feeding habits and feeding foundation of surrounding environments.

Key words: feeding habit, trophic niche, Beibu Gulf