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应用生态学报 ›› 2019, Vol. 30 ›› Issue (10): 3589-3595.doi: 10.13287/j.1001-9332.201910.040

• 研究论文 • 上一篇    下一篇

闽江口鱼类功能多样性

冯晨1, 何雄波1, 招春旭1, 李军1, 康斌1,2*   

  1. 1集美大学水产学院, 福建厦门 361021;
    2中国海洋大学水产学院, 山东青岛 266100
  • 收稿日期:2019-02-13 出版日期:2019-10-20 发布日期:2019-10-20
  • 通讯作者: *E-mail: bkangfish@163.com
  • 作者简介:冯 晨, 男, 1993年生, 硕士研究生. 主要从事渔业资源与生态研究. E-mail: 942080707@qq.com
  • 基金资助:
    国家自然科学基金项目(41476149)资助

Functional diversity of fishes in the Minjiang Estuary, Southeast China

FENG Chen1, HE Xiong-bo1, ZHAO Chun-xu1, LI Jun1, KANG Bin1,2*   

  1. 1College of Fishery, Jimei University, Xiamen 361021, Fujian, China;
    2College of Fishery, Ocean University of China, Qingdao 266100, Shandong, China
  • Received:2019-02-13 Online:2019-10-20 Published:2019-10-20
  • Contact: *E-mail: bkangfish@163.com
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (41476149).

摘要: 根据2016年春季(5月)、夏季(8月)、秋季(11月)和冬季(2月)在闽江口海域进行底拖网作业的渔业资源调查样品,应用鱼类形态功能特征点数据分析了福建闽江口海域的鱼类功能多样性现状及时空变异.结果表明: 功能多样性与物种丰度具有相同的变化趋势,各站位鱼类物种丰度分别为:春季(17.8±5.1);夏季(22.4±5.6);秋季(17.7±6.3);冬季(12.1±2.3).鱼类集群功能多样性指数夏季最高,为(33.94±28.70),冬季最低(9.93±8.83),春季为(11.30±7.55),秋季为(19.05±19.32).群落内功能种呈现显著的季节演替,春季为太的黄鲫(占比为26%),夏季为六指马鲅(26%),秋季为龙头鱼,占比高达69%,显著高于其他物种的总和,冬季为棘头梅童鱼(38%).鱼类功能的季节性变动主要受其生活史及与其他物种之间的种间关系影响.

Abstract: Based on samples collected by bottom trawl in May, August, November and December 2016 in the Minjiang Estuary, species richness and functional diversity of fishes, as well as their spatial-temporal variations, were quantified by a trait-based approach. The functional diversity varied with the changes of species richness. The species richness averaged across all stations were (17.8±5.1) species in spring, (22.4±5.6) in summer, (17.7±6.3) in autumn, and (12.1±2.3) in winter. Functional diversity also showed seasonal variation, with the highest in summer as (33.94±28.70), followed by (9.93±8.83) in winter, (11.30±7.55) in spring and (19.05±19.32) in autumn. The key functional species varied seasonally, as Setipinna taty contributing to 26% of the total functional value in spring, Polydactylus sextarius at 26% in summer, Harpadon nehereus climbing to 69% in autumn, and Collichthys lucidus at 38% in winter. The seasonal variations of fish species function were determined by life history and its interaction with other species.