Seawater carbonate chemistry and growth, survival and Chlorophyll a fluorescence parameters of Fucus vesiculosus L.(Phaeophyceae) in a seasonally fluctuating environment ...

• Main Authors: Al-Janabi, Balsam, Kruse, Inken, Graiff, Angelika, Karsten, Ulf, Wahl, Martin
• Format: Dataset
• Language: English
• Published: PANGAEA 2016
• Subjects: Baltic Sea; Benthos; Chromista; Coast and continental shelf; Fucus vesiculosus; Growth/Morphology; Laboratory experiment; Macroalgae; Mesocosm or benthocosm; Mortality/Survival; Ochrophyta; Primary production/Photosynthesis; Single species; Temperate; Temperature; Type; Species, unique identification; Species, unique identification URI; Species, unique identification Semantic URI; Group; Season; Treatment; Diversity description; Growth rate; DATE/TIME; Irradiance; Electron transport rate, relative; Non photochemical quenching; Non photochemical quenching, maximum; Photoinhibition; Maximal electron transport rate, relative; Light saturation point; Survival; Mean, statistical; Variance; Alkalinity, total; Carbon, inorganic, dissolved; Salinity; Temperature, water; Carbonate system computation flag; pH; 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; Calculated using seacarb after Nisumaa et al. 2010; Ocean Acidification International Coordination Centre OA-ICC; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.956119; https://doi.pangaea.de/10.1594/PANGAEA.956119

Global change exposes brown algal Fucus vesiculosus populations to increasing temperature and pCO2, which may threaten individuals, in particular the early life-stages. Genetic diversity of F. vesiculosus populations is low in the Baltic compared to Atlantic populations. This might jeopardise their potential for adaptation to environmental changes. Here, we report on the responses of early life-stage F. vesiculosus to warming and acidification in a near-natural scenario maintaining natural and seasonal variation (spring 2013–2014) of the Kiel Fjord in the Baltic Sea, Germany (54°27ʹN, 10°11ʹW). We assessed how stress sensitivity differed among sibling groups and how genetic diversity of germling populations affected their stress tolerance. Warming increased growth rates of Fucus germlings in spring and in early summer, but led to higher photoinhibition in spring and decreased their survival in late summer. Acidification increased germlings' growth in summer but otherwise showed much weaker effects than ... : 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 2023-02-28. ...