Occurrence of blooms of the cyanobacterium Cylindrospermopsis raciborskii (Woloszynska) Seenayya and Subba Raju in a north Queensland domestic water supply
Occurrence of blooms of the cyanobacterium Cylindrospermopsis raciborskii (Woloszynska) Seenayya and Subba Raju in a north Queensland domestic water supply
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DOI：
10.1071/mf00110
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发表时间：
2001-09
影响因子：
1.8
通讯作者：
M. Saker;D. Griffiths
中科院分区：
文献类型：
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作者：
M. Saker;D. Griffiths
本文介绍了季节性反复出现的水华的潜在毒性蓝藻aprodrospermopsis raciborskii在有关的一些湖沼学特征的朱利叶斯湖，一个大型的人工蓄水池在澳大利亚的半干旱热带地区。这些水华自1991年以来每年都发生，地下浓度>50 000个细胞mL-1。蓝藻丰富的时期的特点是水柱垂直混合速率降低，混合：真光深度比降低，表层水温高（>25 ° C）。未观察到表面浮渣，一般而言，该物种在整个透光层及其以下显示出相当均匀的分布。C.在1995年11月的水华期间，从Julius湖采集的raciborskii在纯培养物中生长，当通过小鼠生物测定进行测试时，没有产生中毒症状，并且通过HPLC/MS-MS确认没有可检测浓度的肝毒素柱孢菌素。拉齐波斯基。
This paper describes seasonally recurring blooms of the potentially toxic cyanobacterium Cylindrospermopsis raciborskii in relation to some limnological characteristics of Lake Julius, a large man-made water impoundment in Australia’s semi-arid tropics. These blooms have occurred each year since 1991, with subsurface concentrations of >50 000 cells mL–1. Periods of greater cyanobacterial abundance are characterized by reduced rates of vertical mixing of the water column, reduced mixed:euphotic depth ratios and high epilimnetic temperatures (>25˚C). Surface scums were not observed and, in general, this species displays a fairly uniform distribution throughout the euphotic zone and below. An isolate of C. raciborskii taken from Lake Julius during a bloom in November 1995 and grown in pure culture produced no symptoms of poisoning when tested by mouse bioassay, and absence of detectable concentrations of the hepatotoxin cylindrospermopsin was confirmed by HPLC/MS-MS. Low concentrations of cylindrospermopsin (~1–2 g L–1) were detected in the lake during blooms of C. raciborskii.