Chlorophyll a-Daten des Landesamtes für Landwirtschaft, Umwelt und ländliche Räume Schleswig-Holstein.
Im August 2022 fand ein massives Fischsterben in der Oder statt. Die ersten verendeten Fische auf deutscher Seite der Oder wurden am 09.08.2022 im Bereich Frankfurt (Oder) gemeldet. Neben Fischen verendeten auch andere aquatische Organismen wie Schnecken und Muscheln. Das tatsächliche Ausmaß der Umweltschäden und die langfristigen Auswirkungen auf das Ökosystem können derzeit noch nicht quantifiziert werden. Die Anwendung zeigt bildhaft anhand von Diagrammen die Verläufe der Messwerte der verschiedenen gemessenen Parameter an ausgewählten Messstellen.
With ERGOM-GETM-WBS model (with a horizontal resolution of 600 m) calculated Chlorophyll a [µg/l] at surface, averaged for spring (March to May) between 2005 and 2014 in the German Baltic Sea.
With ERGOM-GETM-WBS model (with a horizontal resolution of 600 m) calculated Chlorophyll a [µg/l] at surface, averaged for summer (June to August) between 2005 and 2014 in the German Baltic Sea.
With ERGOM-GETM-WBS model (with a horizontal resolution of 600 m) calculated Chlorophyll a [µg/l] at surface, averaged for winter (December to February) between 2005 and 2014 in the German Baltic Sea.
With ERGOM-GETM-WBS model (with a horizontal resolution of 600m) calculated Chlorophyll a[µg/l] at surface, averaged for autumn (Septemberto November) between 2005 and 2014in the German Baltic Sea.
The main aim of the BaltVib sampling campaign was to analyse the microbial community composition in pelagic and benthic habitats with special focus on Vibrio spp. bacteria inside and outside of eelgrass meadows (Zostera marina), and selected macroalgae populations (Fucus spp.) in the salinity gradient of shallow coastal waters of the Baltic Sea. The temporal extent of the dataset is 25.07.2021 to 02.09.2021. The geographic extent of the dataset is spanning from 9°52,655 E to 25°00,698 W and 60°06,547 N to 54°00,8666 S. The measurement depth ranges from 0.2 meters to 7 meters. Salinity ranges from 4 to 14. Environmental parameters measured are: conductivity, temperature, pH, Secchi depth, chlorophyll a, dissolved oxygen, ammonium, nitrate, nitrite, phosphate, silicate, grain size, dissolved organic carbon, dissolved nitrogen, particulate organic nitrogen, particulate organic carbon. Vibrio spp. colony forming units were counted using TCBS agar plates. Abundance of Vibrio vulnificus was determined by ddPCR in water and sediment samples as well as in Zostera marina surface biofilm. Cell counts by flow cytometry contain: Synechococcus, Picoeukaryota, Nanoeukaryota, high-nucleic acid bacteria, low-nucleic acid bacteria. Macrophyte abundance was measured for Zostera marina and Fucus spp..
The Black Sea is the largest anoxic basin on earth and provides unique conditions for the study of key processes controlling the biology and biogeochemistry at pelagic redoxclines. By identifying microbiological/biogeochemical agents and assessing rates of the coupled element cycles of carbon, nitrogen, phosphorus, sulphur, manganese, and iron, the functional response of this specific environment to changes of external conditions will be visible. This entry summarizes the CTD and pump-CTD data collected during the MSM33 cruise to the Black Sea in 2013. The data set contains both the bottle files, documenting bottle ids and metadata, as well as the CTD profiles. The following parameters were measured: temperature, salinity, conductivity, turbidity, chlorophyll a, pH, redox potential, oxygen, sound.
Vibrio – microbes that are part of the natural bacterioplankton in temperate marine waters – have in recent years flourished in the Baltic Sea, probably stimulated by elevated surface water temperatures. Several Vibrio species are human pathogens. It is hence of great concern that Vibrio-related wound infections and fatalities have increased dramatically along the Baltic coasts. Future climate change is predicted to escalate this problem, posing a significant threat to human health and the Baltic tourism industry. However, the projections do not yet take into account the influence of ‘ecosystem engineers’ such as mussels and macrophytes on Vibrio diversity and abundance. Recent data indicate that in some of the ‘ecosystem engineers’ habitats the abundance of pathogenic Vibrio spp. is reduced. This opens up the option for nature-based solution (NbS) strategies to control pathogenic vibrios in the nearshore habitat where humans interact with the sea. However, climate change will also affect the structure and functioning of the ecosystem engineers, with as yet unknown consequences for the Vibrio populations in the Baltic Sea. BaltVib aims to delineate the current and future Vibrio status, determine biotic and abiotic key factors regulating Vibrio prevalence, and identify NbSs to mitigate the problem. This will be accomplished through interdisciplinary integration of marine, microbiological, molecular and socio-ecological expertise carried by partners from seven Baltic nations.