Tatters Avery O, Clevenger Courtney, Strangman Wendy K, Oehrle Stuart, Kudela Raphael M, Aukamp Jessica, Wan Yongshan
U.S. Environmental Protection Agency, Gulf Ecosystems Measurement and Modeling Division, 1 Sabine Island Dr. Gulf Breeze, FL 32561, USA.
Department of Chemistry and Biochemistry, University of North Carolina-Wilmington, 601 S. College Rd. Wilmington, NC, 28403, USA.
Harmful Algae. 2025 Apr;144:102833. doi: 10.1016/j.hal.2025.102833. Epub 2025 Mar 3.
Extensive cyanobacteria-dominated mats were observed during late summer of 2021 within coastal urban stormwater retention pond networks in northwest Florida. Common in residential communities across the region, such ponds may be routinely visited by humans, domestic and wild animals, and often contain a variety of aquatic life. To begin examining correlations between environmental factors and mat characteristics, we investigated the temporal heterogeneity of these networks with regards to presence of potentially toxic cyanobacteria, associated toxins, and other putative cyanobacterial compounds throughout the fall at several sites within the networks. Multiple toxin classes were detected in whole water and passive SPATT samples using targeted analysis including levels of cylindrospermopsin that exceeded national recreational guidelines. Non-targeted analysis also revealed a collection of potential cyanobacteria-associated compounds. Our results suggest that the benthic proliferations may be, at least in part, correlated with the intended functions of the stormwater treatment networks, which are nutrient and sediment removal. Furthermore, these retention ponds may serve as an episodic source of cyanotoxins to estuarine waters.
2021年夏末，在佛罗里达州西北部沿海城市雨水滞留池塘网络中观察到大量以蓝藻为主的席状生物。这类池塘在该地区的居民区很常见，人类、家畜和野生动物可能会经常光顾，且通常包含各种水生生物。为了开始研究环境因素与席状生物特征之间的相关性，我们在整个秋季对这些网络中几个地点的潜在有毒蓝藻、相关毒素和其他假定的蓝藻化合物的存在情况进行了时间异质性调查。使用靶向分析在全水和被动式固相吸附毒素跟踪采样器（SPATT）样本中检测到多种毒素类别，包括超过国家娱乐用水准则水平的柱孢藻毒素。非靶向分析还揭示了一系列潜在的蓝藻相关化合物。我们的结果表明，底栖生物的增殖可能至少部分与雨水处理网络的预期功能相关，即营养物和沉积物的去除。此外，这些滞留池塘可能是河口水域蓝藻毒素的间歇性来源。
