蘑菇湖水库浮游植物群落结构及营养状态评价  

Phytoplankton community and trophical status in Moguhu Reservoir

作　　者：高岩[1] 胡文革[1] 张映东 贾文平[3] 马得草[1] 尤洋 林旭元 杨扬[1] 兰鸿珠 张秀荣 GAO Yan;HU Wen-ge;ZHANG Ying-dong;JIA Wen-ping;MA De-cao;YOU Yang;LIN Xu-yuan;YANG Yang;LAN Hong-zhu;ZHANG Xiu-rong(College of Life Science, Shihezi University, Shihezi 832003, China;The Manas River Basin Management Office, Shihezi 832000, China;Fisheries Research Institute of Tianjin, Tianjin 300241, China;Xinjiang Provincial Corps Aquatic Technology Promotion Terminus, Urumqi 830002, China))

机构地区：[1]石河子大学生命科学学院,新疆石河子832003 [2]石河子玛纳斯河流域管理处,新疆石河子832000 [3]天津市水产研究所,天津300241 [4]新疆生产建设兵团水产技术推广总站,新疆乌鲁木齐830002

出　　处：《大连海洋大学学报》2019年第1期126-132,共7页Journal of Dalian Ocean University

基　　金：新疆生产建设兵团科技攻关与成果转化计划项目(2015AC010)

摘　　要：为了解蘑菇湖水库浮游植物及水体富营养化状况,在2016年分别在丰水期(4月)、平水期(7月)、枯水期(11月)对蘑菇湖水库的浮游植物群落结构,包括浮游植物的种类构成、密度、生物量优势度及生物多样性进行了调查研究。结果表明:5个站点共鉴定出浮游植物90种(属),其中优势种(属)12种;浮游植物群落结构全年以蓝藻-绿藻型为主,3次采样浮游植物平均密度为(817±982)×10~4 cells/L,平均生物量为(6.72±5.88)mg/L;浮游植物生物量和密度季节变动显著(P<0.05),最高值均出现在7月份(夏季),最低值均出现在4月份(春季);全年水质整体处于国家Ⅴ类水质状态;温度、硝态氮和亚硝态氮是影响蘑菇湖浮游植物优势种的主要环境因子,且温度与浮游植物密度和生物量具有显著相关性(P<0.05)。研究表明,蘑菇湖水库浮游植物多样性较好,群落结构较稳定,但蘑菇湖水库处于富营养化污染状态,本研究结果可为蘑菇湖水库的环境治理和渔业资源开发提供参考。The phytoplankton community structure including species composition, density, biomass dominance and biodiversity of phytoplankton was surveyed in 5 sampling sites in Moguhu Reservoir in wet season (April), normal level season (July) and dry season (November) in 2016 in order to understand the phytoplankton in Moguhu Reservoir and current eutrophication in waters in Moguhu Reservoir. There were 90 species (genera) of phytoplankton were identified including 12 dominant species, with good phytoplankton diversity and relatively stable community structurein Moguhu Reservoir. The phytoplankton community structure was dominated by blue-green algae and green algae throughout the year, with average density of phytoplankton was (817 ±982)×10 4 cells/L, and the biomass was(6.72±5.88)mg/L. The significantly seasonal changes in phytoplankton biomass and density were found( P <0.05), the maximum in July (summer) and the minimal in April (early spring), indicating that the water quality in Moguhu Reservoir is under V class water standand in the year. The CANOCO software analysis revealed that the main environmental factors affecting the dominant species of phytoplankton are temperature, nitrate nitrogen and nitrite nitrogen levels, Moguhu Reservoir is currently under eutrophication pollution, with significan

关 键 词：蘑菇湖水库 浮游植物 群落结构 水质 富营养化 

分 类 号：S948.8[农业科学—水产养殖]