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Seawater carbonate chemistry and PI-curve parameters, non-photochemical quenching, maximum quantum yield, gross oxygen production and chlorophyll concentrations of Fucus vesiculosus in the Kiel Outdoor Benthocosms

Description: Shallow coastal marine ecosystems are exposed to intensive warming events in the last decade, threatening keystone macroalgal species such as the bladder wrack (Fucus vesiculosus, Phaeophyceae) in the Baltic Sea. Herein, we experimentally tested in four consecutive benthic mesocosm experiments, if the single and combined impact of elevated seawater temperature (+ 5◦C) and pCO2 (1100 ppm) under natural irradiance conditions seasonally affected the photophysiological performance (i.e., oxygen production, in vivo chlorophyll a fluorescence, energy dissipation pathways and chlorophyll concentration) of Baltic Sea Fucus. Photosynthesis was highest in spring/early summer when water temperature and solar irradiance increases naturally, and was lowest in winter (December to January/February). Temperature had a stronger effect than pCO2 on photosynthetic performance of Fucus in all seasons. In contrast to the expectation that warmer winter conditions might be beneficial, elevated temperature conditions and sub-optimal low winter light conditions decreased photophysiological performance of Fucus. In summer, western Baltic Sea Fucus already lives close to its upper thermal tolerance limit and future warming of the Baltic Sea during summer may probably become deleterious for this species. However, our results indicate that over most of the year a combination of future ocean warming and increased pCO2 will have slightly positive effects for Fucus photophysiological performance.

Global identifier:

Doi(
    "10.1594/PANGAEA.938760",
)

Types:
Measurements {
    domain: Unspecified,
    station: None,
    measured_variables: [
        "Event label",
        "Type",
        "Species",
        "Registration number of species",
        "Uniform resource locator/link to reference",
        "Season",
        "Time in days",
        "DATE/TIME",
        "Experiment",
        "Experiment",
        "Sample code/label",
        "Sample code/label",
        "Treatment",
        "Treatment",
        "Sample code/label",
        "Electron transport rate efficiency",
        "Maximal electron transport rate, relative",
        "Light saturation point",
        "Non photochemical quenching, maximum",
        "Photochemical quantum yield",
        "Gross primary production of oxygen",
        "Chlorophyll a",
        "Chlorophyll c2",
        "Comment",
        "Salinity",
        "Salinity, standard deviation",
        "Temperature, water",
        "Temperature, water, standard deviation",
        "Alkalinity, total",
        "Alkalinity, total, standard deviation",
        "Carbon, inorganic, dissolved",
        "Carbonate system computation flag",
        "pH, total scale",
        "Carbon dioxide",
        "Fugacity of carbon dioxide (water) at sea surface temperature (wet air)",
        "Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)",
        "Bicarbonate ion",
        "Carbonate ion",
        "Aragonite saturation state",
        "Calcite saturation state",
    ],
    methods: [
        "Calculated using seacarb after Nisumaa et al. (2010)",
        "Calculated using seacarb after Nisumaa et al. (2010)",
        "Calculated using seacarb after Nisumaa et al. (2010)",
        "Calculated using seacarb after Nisumaa et al. (2010)",
        "Calculated using seacarb after Nisumaa et al. (2010)",
        "Calculated using seacarb after Nisumaa et al. (2010)",
        "Calculated using seacarb after Nisumaa et al. (2010)",
        "Calculated using seacarb after Nisumaa et al. (2010)",
        "Calculated using seacarb after Nisumaa et al. (2010)",
    ],
}
Dataset

Comment: In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2021) was used to compute a complete and consistent set of carbonate system variables, as described by Nisumaa et al. (2010). In this dataset the original values were archived in addition with the recalculated parameters (see related PI). The date of carbonate chemistry calculation by seacarb is 2021-12-01.

Origins: /Wissenschaft/PANGAEA

Tags: Meereserwärmung ? Meerestemperatur ? Meerwasser ? Wassertemperatur ? Benthos ? Energieverschwendung ? Kohlendioxid ? Marines Ökosystem ? Temperatur ? Salzgehalt ? Makroalgen ? Luftverkehr ? Laborversuch ? Nordatlantik ? Ressource ? Ostsee ? Chromista ? Coast and continental shelf ? Fucus vesiculosus ? Mesocosm or benthocosm ? Ochrophyta ? Primary production/Photosynthesis ? Single species ? Temperate ?

Bounding boxes: 10.150000000000002° .. 10.150000000000002° x 54.330000000000005° .. 54.330000000000005°

License: cc-by/4.0

Language: Englisch/English

Organisations

Persons

Issued: 2021-12-01

Modified: 2022-12-15

Time ranges: 2013-01-01 - 2014-04-01

Resources

Status

Quality score

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