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应用生态学报 ›› 2020, Vol. 31 ›› Issue (2): 659-666.doi: 10.13287/j.1001-9332.202002.040

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浙江中南部近岸海域春季主要鱼类空间生态位

张琳琳1, 周永东1,2*, 蒋日进1,2, 李哲1,2, 樊紫薇1, 印瑞1, 朱玉丹1, 芮银1, 肖祎1   

  1. 1浙江海洋大学海洋与渔业研究所, 浙江舟山 316021;
    2浙江省海洋水产研究所农业部重点渔场渔业资源科学观测实验站/浙江省海洋渔业资源可持续利用技术研究重点实验室, 浙江舟山 316021
  • 收稿日期:2019-10-15 出版日期:2020-02-15 发布日期:2020-02-15
  • 通讯作者: * E-mail: zyd511@126.com
  • 作者简介:张琳琳, 男, 1993年生, 硕士研究生。主要从事海洋生态学研究。E-mail: 1194648931@qq.com
  • 基金资助:
    本文由国家重点研发计划项目(2018YFD0900904,2017YFA0604904)和浙江省重点研发计划项目(2019C02056)资助

Spatial niche of major fish species in spring in the coastal waters of central and southern Zhejiang Province, China

ZHANG Lin-lin1, ZHOU Yong-dong1,2*, JIANG Ri-jin1,2, LI Zhe1,2, FAN ZI-wei1, YIN Rui1, ZHU YU-dan1, RUI Yin1, XIAO Yi1   

  1. 1Marine and Fisheries Research Institute, Zhejiang Ocean University, Zhoushan 316021, Zhejiang, China;
    2Ministry of Agriculture Key Research Station for Fisheries Resources of Main Fishing Ground/Key Research Station of Sustainable Utilization for Marine Fisheries Resources, Zhejiang Institute of Marine Fisheries Research, Zhoushan 316021, Zhejiang, China
  • Received:2019-10-15 Online:2020-02-15 Published:2020-02-15
  • Contact: * E-mail: zyd511@126.com
  • Supported by:
    This work was supported by the National Key R&D Program of China (2018YFD0900904, 2017YFA0604904) and the Special Fund for the Key Research and Development Project of Zhejiang Province (2019C02056).

摘要: 基于2016年4、5月(春季)在浙江中南部近岸海域进行的2个航次渔业资源调查数据,计算浙江中南部近岸海域主要鱼类的相对重要性指数(IRI)、平均拥挤度、生态位宽度及生态位重叠值(Qik)。结果表明: 浙江中南部近岸海域主要鱼类(IRI>100)共24种,生态位宽度值差异较大,相对重要性指数与生态位宽度值呈极显著正相关。春季鱼类的生态位重叠值极低,4月Qik>0.6的种对有6对,占总对数的3.9%;5月Qik>0.6的种对有5对,占总对数的4.8%。冗余分析表明,温度、盐度、深度和溶解氧是影响浙江中南部近岸海域主要鱼类分布的重要因素,主要鱼类在这些环境因子上存在生态分化现象。

Abstract: The relative importance index (IRI), mean crowding, niche breadth, and niche overlap (Qik) of major fish species were calculated based on two fishery resource surveys from April to May 2016 (spring) in the coastal waters of central and southern Zhejiang Province. The results showed that there were 24 major fish species (IRI>100), the niche breadth values of which differed greatly and were positively correlated with IRI. The niche overlaps of fishes were extremely low in spring. The total amount of species pairs with niche overlap 0.6 (Qik >0.6) were six in April and five in May, which represented 3.9% and 4.8% of the total pairs, respectively. Results from the redundancy analysis showed that the distribution of major fish species were mainly affected by temperature, salinity, water depth, and dissolved oxygen, which caused ecological differentiation of fish species.