生物学杂志

生物学杂志 ›› 2023, Vol. 40 ›› Issue (5): 47-.doi: 10.3969/j.issn.2095-1736.2023.05.047

• 研究报告 • 上一篇    下一篇

青草沙水库后生浮游动物功能群特征及影响因子

洪陈聪1， 胡　权1， 陈皓若1， 徐赛赛1， 张　健1， 陈立婧1,2   

  1. 1. 上海海洋大学 环境DNA技术与水生态健康评估工程中心， 上海 201306；
    2. 上海农林职业技术学院， 上海 201699
  • 出版日期:2023-10-18 发布日期:2023-10-17
  • 通讯作者: 陈立婧，教授，博士生导师，研究方向为水环境的生物调控和生态修复、浮游生物的物种多样性和优势种演替机制以及功能食品来源水生生物物种选育，E-mail:ljchen@shou.edu.cn
  • 作者简介:洪陈聪，硕士研究生，研究方向为浮游动物生态学与水生态修复，E-mail:549730602@qq.com
  • 基金资助:
    国家重点研发计划项目（2020YFD0900504）； 上海市科学技术委员会部分地方院校能力建设项目（19050501900）

Characteristics and influencing factors of metazooplankton functional groups in Qingcaosha Reservoir

HONG Chencong1, HU Quan1, CHEN Haoruo1, XU Saisai1, ZHANG Jian1, CHEN Lijing1,2   

  1. 1. Environmental DNA Technology and Water Ecological Health Assessment Engineering Center, Shanghai Ocean
    University, Shanghai 201306, China; 2. Shanghai Vocational College of Agriculture and Forestry,
    Shanghai 201699, China
  • Online:2023-10-18 Published:2023-10-17

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摘要： 为分析青草沙水库后生浮游动物功能群特征及其与水环境因子的关系，于2021年逐月采样调查水库内后生浮游动物。共采集到青草沙水库47种后生浮游动物并划分为9个功能群，年均生物密度为82.4 ind/L，年均生物量为0.3460 mg/L，轮虫捕食者(Rotifers carnivore, RC)、中型浮游动物滤食者(Middle copepods and claocera filter feeders, MCF)和大型浮游动物滤食者(Large copepods and claocera filter feeders, LCF)的生物量构成总生物量的主要部分。Pearson分析表明，小型浮游动物捕食者(Small copepods and claocera carnivora, SCC)同中型浮游动物捕食者(Middle copepods and claocera carnivora, MCC)、小型浮游动物滤食者(Small copepods and claocera filter feeders, SCF)具有显著的相关性（P＜0.05），功能群SCF、SCC、MCF和MCC之间具有极显著的相关性（P＜0.01），同为捕食关系的功能群RC与轮虫滤食者(Rotifers filter feeders, RF)则不呈现显著相关性(P＞0.05)。冗余分析（Redundancy analysis, RDA）表明，除了功能群RC、LCF和LCC外，其他功能群与水深（WD）和溶解氧（DO）呈显著负相关关系，与水温（WT）呈正相关关系，溶解性总固体（TDS）和氨氮（NH3-N）与功能群RC和LCC呈显著正相关，与功能群LCF呈显著负相关。

关键词: 青草沙水库, 后生浮游动物, 功能群, 水环境因子, 时空变化

Abstract: To analyze the characteristics of metazooplankton functional groups and their relationship with water environmental factors in Qingcaosha Reservoir, a monthly sampling survey was conducted in 2021. A total of 47 metazooplankton species were collected and divided into 9 functional groups. The average annual biological density of metazooplankton was 82.4 ind/L, and the average annual biomass was 0.3460 mg/L. Rotifers carnivore(RC), middle copepods and claocera filter feeders(MCF) and large copepods and claocera filter feeders(LCF) constituted the main part of the total zooplankton biomass in Qingcaosha Reservoir. Pearson analysis showed that small copepods and claocera carnivore(SCC) had a significant correlation with middle copepods and claocera carnivore(MCC) and small copepods and claocera filter feeders(SCF) (P<0.05), and the functional group SCF, SCC, MCF, and MCC had a significant correlation (P<0.01), while RC and rtifers filter feeders(RF) showed no significant correlation (P>0.05). Redundancy analysis showed that in addition to functional group RC, LCF and LCC, other functional groups were significantly negatively correlated with water depth and dissolved oxygen, and positively correlated with water temperature. Total dissolved solids and ammonia nitrogen were significantly positively correlated with functional group RC and LCC, and significantly negatively correlated with functional group LCF.

Key words: Qingcaosha Reservoir, metazoan zooplankton, functional group, water environmental factors, temporal and spatial variation

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