Bacteria and fungi in air over the Gulf of Gdansk and Baltic sea
Bacteria and fungi in air over the Gulf of Gdansk and Baltic sea
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DOI：
10.1016/s0021-8502(00)00064-1
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发表时间：
2001-02-01
影响因子：
4.5
通讯作者：
Michalska, M
中科院分区：
文献类型：
--
作者：
Marks, R;Kruczalak, K;Michalska, M
1994 ~ 1998年对格但斯克湾、波罗的海南部和沿海地区空气中的嗜冷菌、耐冷菌和真菌菌落形成单位进行了调查。记录了公海和沿海地区海洋气溶胶中存在的活的嗜温和嗜冷细菌和真菌。在沿海地区的存活微生物数量明显高于公海。明显更多的嗜温细菌（污染相关），嗜冷（环境相关）的物种相比，被发现在气溶胶在波罗的海开放。有证据表明，氧气过饱和度在地表水可能有助于增强气泡介导的海洋到空气的细菌运输记录，特别是在夏季浮游生物水华存在的格但斯克，维斯瓦河和海水沃茨混合的海湾。一些沿海调查结合了实地和实验室实验，以估计细菌在海洋来源的液滴中的富集系数。这部分研究是使用为此目的开发的海气交换模拟器（A-SES）进行的。A-SES在水中产生气泡流，并在空气中产生相关的射流和薄膜液滴。实验室实验证实，海洋向空气中温细菌转移的富集作用显著。嗜温细菌的估计富集因子可能超过用液滴喷射的嗜冷细菌获得的富集因子12。(C)2001爱思唯尔科技有限公司版权所有。
Mesophile, psychrophile bacteria and fungal colony-forming units (CFU) in air were investigated over the Gulf of Gdansk, Southern Baltic Sea and coastal locations from 1994 to 1998. The presence of viable mesophile and psychrophile bacteria and fungi in marine aerosols over the open sea and coastal locations was documented. The number of viable microbes over the coastal locations was significantly higher than over the open sea. Distinctly more mesophile bacteria (pollution related), compared to psychrophile (environment related) species, was found in aerosols over the open Baltic Sea. Evidence that oxygen supersaturation in the surface water may contribute to enhanced bubble-mediated sea-to-air bacteria transport was documented, in particular during the presence of summer plankton waterbloom in the Gulf of Gdansk, where Vistula River and sea waters are mixed. Several coastal investigations combined both field and laboratory experiments to estimate the enrichment factors of bacteria in sea-derived droplets. This part of the study was performed using an Air-Sea Exchange Simulator (A-SES) developed for this purpose. The A-SES produces streams of bubbles in the water and related jet and film droplets in the air. Laboratory experiments confirmed significant enrichment of the sea-to-air mesophile bacteria transfer. The estimated enrichment factor for mesophile bacteria may exceed that obtained for psychrophile bacteria ejected with droplets by a factor of 12. (C) 2001 Elsevier Science Ltd. All rights reserved.