黑龙江省泰湖国家湿地公园夏秋季大型底栖无脊椎动物群落结构研究

Study of Macroinvertebrates Community Structure in Summer and Autumn from Tai Lake National Wetland Park, Heilongjiang Province

摘要: 分别于2018年夏季(7月)和秋季(9月)对泰湖国家湿地公园设置的12个采样点进行大型底栖无脊椎动物采样调查分析，共发现大型底栖无脊椎动物7种，其中夏季发现5种摇蚊幼虫，秋季发现4种摇蚊幼虫。优势种属于摇蚊属(Chironomus)、拟摇蚊属(Parachironomus)、多足摇蚊属(Polypedilum)和前突摇蚊属(Procladius)。夏季和秋季的丰度均处于0~320 ind./m²之间，两季均为3号样点的大型底栖无脊椎动物种类数最多，丰度也最大，而1、10、11、12号样点则均未发现大型底栖无脊椎动物。夏季的Simpson多样性指数平均值为1.73，秋季的平均值为1.79，各样点之间的多样性指数变化也不大，说明泰湖国家湿地公园的大型底栖无脊椎动物物种不丰富。

Abstract: Seven species of macroinvertebrates were found in 12 sampling sites in Tai Lake National Wetland Park in summer (July) and autumn (September) of 2018. Five species of Chironomid larvae were found in summer, and four species of Chironomid larvae were found in autumn. The dominant spe-cies were Chironomus, Parachironomus, Polypedilum and Procladius. The abundance of macroinvertebrates in summer and autumn both ranged from 0 ind./m² to 320 ind./m². The largest number and abundance of macroinvertebrates were observed at S3, while no macroinvertebrates were found at S1, S10, S11 and S12. The average of Simpson diversity index in summer is 1.73, and that in autumn is 1.79. The diversity index between sampling sites was not changed much, which in-dicates that the species of macroinvertebrates in Tai Lake National Wetland Park are not abundant.