Cruise Report RV "POSEIDON" Cruise-No. POS488.

Oberbeckmann, Sonja (2015) Cruise Report RV "POSEIDON" Cruise-No. POS488. . IOW Leibniz Institute for Baltic Sea Research, Rostock- Warnemünde, 11 pp. DOI 10.3289/CR_POS_488.

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Supplementary data:


Dates of the cruise: 17.08.2015 to 04.09.2015 -
Particulars of the research vessel: Name: RV POSEIDON -
Nationality: Germany -
Operating Authority: Helmholtz Centre for Ocean Research in Kiel GEOMAR -
Geographical area in which ship has operated: Baltic Sea

Purpose of the cruise
1) BLUEPRINT: The project aims at establishing indicators for the environmental status of the Baltic Sea, based on the biodiversity and genetic functional profiles of microbes in seawater samples. During the cruise POS488 seawater samples for microbial community, DNA and RNA analyses will be taken with CTD from (mainly coastal) stations. In combination with the regular CTD sampling, in situ fixed water samples will be taken using the Automatic Fixation - Injection Sampler (AFIS) to generate functional microbial fingerprints from anthropogenically impacted regions. Additional to the regular sampling campaign, incubation experiments will be carried out at different stations (cities, estuaries, pristine and agricultural areas) to analyze the reaction of microorganisms to stress as an indicator for organic pollutants.
2) MIKROMIK: The coastal zones of the Baltic Sea are strongly influenced by anthropogenic activities, which suggests, among other impacts, an inflow of microplastics via rivers, harbors and sewage treatment plants. Distinct data on the abundance, distribution and polymer composition are missing for the Baltic Sea. Further, it is yet unclear whether microplastics serve as vector for microorganisms, including pathogenic bacteria. Therefore, we will sample surface water (Manta net) and sediment (Van Veen and box grab). Back in the laboratory, we will analyze the samples regarding abundance, composition and spatial distribution of microplastic.
3) Seawater and sediment samples will be taken from all stations to generate a broad selection of metadata (pollutants, nutrients etc) for our own datasets and for other colleagues at the IOW.

Document Type: Report (Cruise Report)
Keywords: RV Poseidon, POS488, Baltic Sea, Gulf of Bothnia, BLUEPRINT, MikrOMIK Project, Microplastic
Publisher: IOW Leibniz Institute for Baltic Sea Research
Projects: BONUS BIO-C3
Date Deposited: 18 Feb 2016 11:21
Last Modified: 18 Feb 2016 13:03

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