Effects of <i>Microcystis aeruginosa</i>on New Jersey Aquatic Benthic Macroinvertebrates

• 作者: Stephanie Beck Meiyin Wu
• 来源期刊: 微生物学(英文)
• 学科: 医学
• 关键词: CYANOBACTERIA Harmful Algal Bloom Aquatic Benthic Macroinvertebrate Microcystis aeruginosa
• 年，卷（期）: 2021,（3）
• 页码范围: 165-180
• 页数: 16页
• 分类号: R73

摘要

As increases in anthropogenic eutrophication and climate change contribute to more severe and frequent cyanobacterial harmful algal blooms in freshwater ecosystems worldwide, understanding the effects and consequences cyanobacterial blooms have on aquatic organisms is crucial. <i><span style="font-family:Verdana;">Microcystis aeruginosa </span></i><span style="font-family:Verdana;">is</span><span style="font-family:Verdana;"> </span><span style="font-family:Verdana;">one of the most common cyanobacteria taxa found in cyanobacterial blooms, producing a number of toxins including Microcystins. This study examined the effects of </span><i><span style="font-family:Verdana;">Microcystis aeruginosa </span></i><span style="font-family:Verdana;">on aquatic benthic macroinvertebrates, specifically the pollution intolerant taxa Ephemeroptera, the pollution moderately intolerant taxa Zygoptera, and the pollution tolerant taxa Chironomidae. In a controlled lab environment, macroinvertebrates were exposed to approximately 100,000 cells/ml of </span><i><span style="font-family:Verdana;">Microcystis</span></i><i><span style="font-family:Verdana;"> </span></i><i><span style="font-family:Verdana;">aeruginosa</span></i><span style="font-family:Verdana;">. The survival percentage was lower for macroinvertebrates exposed to </span><i><span style="font-family:Verdana;">Microcystis aeruginosa</span></i><span style="font-family:Verdana;"> in all three tolerance groups</span><span style="font-family:Verdana;"> </span><span style="font-family:Verdana;">(</span><i><span style="font-family:Verdana;">p</span></i><i><span style="font-family:Verdana;"> </span></i><span style="font-family:Verdana;"><</span><span style="font-family:Verdana;"> </span><span style="font-family:Verdana;">0.001)</span><span style="font-family:Verdana;"> </span><span style="font-family:Verdana;">while corresponding with the pollution tolerance levels of the species. Mayflies had a survival percentage of 38% in the treatment groups compared to a 98% survival pe