Description: The brown algae Fucus serratus is one of the major meadow forming algae of the Western Baltic Sea nearshore ecosystem. At the end of summer, those meadows are exposed to local upwelling suddenly increasing the pCO2 and DIC up to 2500 µatm and 2250 µmol/kg resp., for period of days to weeks. This study investigates the growth response of summer's vegetative Fucus serratus to elevated pCO2 (1350 and 4080 µatm) during a 40 days laboratory incubation. After 10 days, increases of growth rates of 20 % and 47 % of the control were observed in the 1350 and 4080 µatm pCO2 treatments respectively. Beyond 20 days, the growth rates collapsed in all treatments due to nutrients shortage, as demonstrated by high C:N ratios (95:1) and low N tissue content (0.04 % of dry weight). The collapse occurs faster at higher pCO2. On day 30, growth rates were reduced by 40 % and 100 % relative to the control at 1350 and 4080 µatm respectively. These results are consistent with a fertilizing effect of elevated pCO2 on Fucus serratus presumably linked to the transition from active HCO3- to passive CO2(aq) uptake. This positive effect is limited by nutrients resources, low seawater dissolved inorganic N and P and shortage of the nutrients reserves accumulated over the previous autumn and winter.
Global identifier:
Doi(
"10.1594/PANGAEA.846698",
)
Measurements {
domain: Unspecified,
station: None,
measured_variables: [
"Species",
"Treatment",
"Time of day",
"Replicate",
"Growth rate",
"Duration, number of days",
"Area",
"Effective photochemical quantum yield",
"Effective photochemical quantum yield, standard deviation",
"Carbon, total",
"Nitrogen, total",
"Carbon/Nitrogen ratio",
"Temperature, water",
"Temperature, water, standard deviation",
"Salinity",
"Salinity, standard deviation",
"pH, total scale",
"pH, standard deviation",
"Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)",
"Partial pressure of carbon dioxide, standard deviation",
"Carbon, inorganic, dissolved",
"Carbon, inorganic, dissolved, standard deviation",
"Alkalinity, total",
"Alkalinity, total, standard deviation",
"Carbon dioxide",
"Carbon dioxide, standard deviation",
"Bicarbonate ion",
"Bicarbonate ion, standard deviation",
"Carbonate ion",
"Carbonate ion, standard deviation",
"Nitrogen, inorganic",
"Nitrogen, inorganic, standard deviation",
"Phosphate",
"Phosphate, standard deviation",
"Carbonate system computation flag",
"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",
"Carbon, inorganic, dissolved",
"Aragonite saturation state",
"Calcite saturation state",
],
methods: [
"Potentiometric",
"Potentiometric",
"Coulometric titration",
"Coulometric titration",
"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, 2015) 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 is 2015-06-01.
Origins: /Wissenschaft/PANGAEA
Tags: Meerestemperatur ? Meerwasser ? Nährstoff ? Wassertemperatur ? Wiese ? Benthos ? Gesamtstickstoff ? Kohlendioxid ? Salzgehalt ? Makroalgen ? Studie ? Laborversuch ? Ökosystem ? Ressource ? Ostsee ? Biomass/Abundance/Elemental composition ? Chromista ? Coast and continental shelf ? Containers and aquaria (20-1000 L or < 1 m**2) ? Fucus serratus ? Growth/Morphology ? Ochrophyta ? Primary production/Photosynthesis ? Single species ? Temperate ?
Bounding boxes: 9.88333° .. 9.88333° x 54.45° .. 54.45°
License: cc-by/3.0
Language: Englisch/English
Modified: 2021-04-28
Time ranges: 2011-02-01 - 2011-02-28
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