Development of Trachelomonas species (Euglenophyta) during blooming of Planktothrix agardhii (Cyanoprokaryota)
Development of Trachelomonas species (Euglenophyta) during blooming of Planktothrix agardhii (Cyanoprokaryota)
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Planktothrix agardhii（Cyanoprokaryota）开花期间络石单胞菌属（裸藻门）的发育
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发表时间：
2014
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通讯作者：
K. Wołowski
中科院分区：
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作者：
M. Grabowska;K. Wołowski
本文报道了在一个浅的、高度富营养化的水库中发生的囊裸藻（Euglenophyta）群落的数据。该结果来自对位于纳雷夫河上游（波兰东北部）的Siemianowka大坝水库的长期研究。从2007年4月到10月，共鉴定了132个囊裸藻分类群，包括32个囊裸藻分类群，其中23个是该水库的新记录，其中3个是波兰的首次记录：T.无柄变种heterospinaSwirenko、异刺毛叶蜂T.斯克沃尔佐夫原变种minor Hortagi和T.最小德雷兹·尤波尔斯基一个变种，T.库尔塔湾Pappilata Wooowski被描述为科学新品种。详细说明囊裸藻属的超微结构。囊裸藻的最高数量出现在8月份的保护区海岸区。2007年夏末，囊裸藻的显著发展，导致囊裸藻生物量迅速下降，这是由于水体透明度和氧气浓度降低。此外，囊裸藻类群和生物量的下降与水温的下降有关。胞外微囊藻毒素对囊裸藻生长发育的负面影响有待进一步研究。
This paper reports data on a community of Trachelomonas species (Euglenophyta) occurring during Planktothrix agardhii bloom formation in a shallow, highly eutrophic dam reservoir. The results come from a long-term study of Siemianowka Dam Reservoir, located on the upper Narew River (NE Poland). From April to October 2007, 132 alga taxa were identified, including 32 Trachelomonas taxa, 23 of which are new for the reservoir; of those, three are first records for Poland: T. armata (Ehrenberg) Stein var. heterospina Swirenko, T. atomaria Skvortzov var. minor Hortobagi and T. minima Drez uepolski. One variety, T. curta var. pappilata Wooowski, is described as new for science. The ultrastructural details of Trachelomonas species are illustrated. The highest number of Trachelomonas taxa was recorded in August in the shore zone of the re- servoir. At the end of summer 2007, the conspicuous development of P. agardhii (Gomont) Anagnostidis et Komarek, caused a rapid decrease of Trachelomonas biomass due to lower water transparency and the oxygen concentration. In addition, a decline in the Trachelomonas taxa and biomass was associated with a decrease of water temperature. The negative impact of extracellular microcystin on the Trachelomonas development requires further study.