Marine Biological Section, Department of Biology, University of Copenhagen, Copenhagen, Denmark.
Department of Biological Oceanography, Leibniz Institute for Baltic Sea Research Warnemünde (IOW), Rostock, Germany.
mBio. 2024 Oct 16;15(10):e0156924. doi: 10.1128/mbio.01569-24. Epub 2024 Sep 19.
The number of -related infections in humans, e.g., by , has increased along the coasts of the Baltic Sea. Due to climate change, vibriosis risk is expected to increase. It is, therefore, pertinent to design a strategy for mitigation of the vibriosis threat in the Baltic Sea area, but a prerequisite is to identify the environmental conditions promoting the occurrence of pathogenic spp., like . To address this, we sampled three coastal Baltic sites in Finland, Germany, and Denmark with salinities between 6 and 21 from May to October 2022. The absolute and relative abundances of spp. and in water were compared to environmental conditions, including the presence of the eelgrass , which has been suggested to reduce pathogenic species abundance. In the water column, only occurred at the German station between July and August at salinity 8.1-11.2. Temperature and phosphate (PO) were identified as the most influencing factors for spp. and . The accumulation of spp. in the sediment and the co-occurrence with sediment bacteria in the water column indicate that sediment resuspension contributed to abundance. Interestingly, co-occurred with specific cyanobacteria taxa, as well as specific bacteria associated with cyanobacteria. Although we found no reduction in spp. or associated with eelgrass beds, our study underscores the importance of extended heatwaves and sediment resuspension, which may elevate the availability of PO, for species levels at intermediate salinities in the Baltic Sea.
Elevated sea surface temperatures are increasing the prevalence of pathogenic at higher latitudes. The recent increase in -related wound infections and deaths along the Baltic coasts is, therefore, of serious health concern. We used culture-independent data generated from three Baltic coastal sites in Denmark, Germany, and Finland from May to October (2022), with a special focus on , and combined it with environmental data. Our temporal model shows that temperature, combined with sediment resuspension, drives the prevalence of at intermediate salinities in the coastal Baltic Sea.
沿波罗的海海岸，人类感染弧菌的数量增加，例如感染霍乱弧菌。由于气候变化，弧菌病的风险预计会增加。因此，有必要制定一项策略来减轻波罗的海地区的弧菌病威胁，但前提是要确定促进致病性弧菌属，如霍乱弧菌，发生的环境条件。为了解决这个问题，我们于 2022 年 5 月至 10 月在芬兰、德国和丹麦的三个沿海波罗的海地点采集了盐度在 6 至 21 之间的水样。水中弧菌属和霍乱弧菌的绝对和相对丰度与环境条件进行了比较，包括鳗草的存在，鳗草被认为可以减少致病性弧菌属的丰度。在水柱中，仅在德国站于 7 月至 8 月在盐度 8.1-11.2 时检测到霍乱弧菌。温度和磷酸盐（PO）被确定为影响弧菌属和霍乱弧菌的最主要因素。弧菌属在沉积物中的积累以及水柱中与沉积物细菌的共同出现表明，沉积物再悬浮促成了弧菌属的丰度增加。有趣的是，霍乱弧菌与特定的蓝细菌类群以及与蓝细菌相关的特定细菌共同出现。虽然我们没有发现鳗草床与弧菌属或霍乱弧菌的丰度减少有关，但我们的研究强调了延长的热浪和沉积物再悬浮的重要性，这可能会增加波罗的海中等盐度下 PO 的可利用性，从而提高弧菌属水平。
升高的海表温度正在增加高纬度地区致病性弧菌的流行率。因此，沿波罗的海海岸最近增加的弧菌相关伤口感染和死亡病例引起了严重的健康关注。我们使用了 2022 年 5 月至 10 月期间在丹麦、德国和芬兰的三个波罗的海沿海地点生成的、以霍乱弧菌为重点的、基于培养的独立数据，并将其与环境数据相结合。我们的时间模型表明，温度与沉积物再悬浮相结合，驱动了波罗的海沿海中等盐度下霍乱弧菌的流行率。
