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Extracellular dissolved organic carbon (DOC) concentrations in axenic and xenic cultures of Thalassiosira gravida in response to varying temperatures and photoperiods

Description: This dataset comprises dissolved organic carbon (DOC) concentrations from axenic and xenic cultures of Thalassiosira gravida that were cultivated at the Alfred-Wegener-Institute (Bremerhaven, Germany) in March, 2023. After a cell density of ~ 15.000 cells * mL-1 was reached, cultures were filtered through a 0.2 µm polycarbonate (PC) filter (Whatman) that was cleaned by soaking in 10 % hydrochloric acid (HCl, Merck suprapure) for at least 12 h and subsequently rinsing with ultrapure water (Merck Millipore MilliQ). DOC was quantified by high temperature catalytic oxidation with a Shimadzu TOC analyzer (VCPN-TOC, Shimadzu) according to Garzón-Cardona et al. 2024; doi: 10.1016/J.JMARSYS.2023.103893. Cultures were grown under two temperatures (9 °C, 13.5 °C) and two photoperiods (16:8 h, 24:0 h light:dark). The aim was to investigate responses of algal extracellular release and bacterial DOC transformation to marine heatwave-like conditions.

Global identifier: 

Doi(
    "10.1594/PANGAEA.992610",
)

Types: 
DataMeasurements(
    DataMeasurements {
        domain: Unspecified,
        station: None,
        measured_variables: [
            "Carbon, organic, dissolved",
            "Date/time end, experiment",
            "Date/time start, experiment",
            "Event label",
            "Replicate",
            "Sample ID",
            "Sampling date/time, experiment",
            "Species",
            "Species, unique identification (Semantic URI)",
            "Species, unique identification (URI)",
            "Treatment: bacteria",
            "Treatment: photoperiod",
            "Treatment: temperature",
            "Type of study",
        ],
        methods: [
            "Total organic carbon analyzer (TOC-VCPN), Shimadzu, according to Garzón-Cardona et al., (2024)",
        ],
    },
)

Tags: Polycarbonat ? Gelöster organischer Kohlenstoff ? Kohlenstoff ? Salzsäure ? Deutschland ? Temperatur ? Bakterien ? Studie ? Wasser ? Thalassiosira sp. ? culture experiment ? dissolved organic carbon (DOC) ? photoperiod ?

Region: Bremerhaven, Germany

Bounding boxes: 8.58009° .. 8.58009° x 53.534381° .. 53.534381°

License: Creative Commons Namensnennung 4.0

Data access requires registration: click here for further information

Language: Englisch/English

Organisations

Persons

Modified: 2026-02-25

Time ranges: 2023-03-06 - 2023-03-22

Resources

Status

Quality score

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