Seawater carbonate chemistry and survival and growth of macroalgal Fucus vesiculosus germlings

• Main Authors: Al-Janabi, Balsam, Wahl, Martin, Karsten, Ulf, Graiff, Angelika, Kruse, Inken
• Format: Dataset
• Language: English
• Published: PANGAEA 2023
• Subjects: Alkalinity; total; Aragonite saturation state; Benthos; Bicarbonate ion; Calcite saturation state; Calculated using seacarb after Nisumaa et al. (2010); Carbon; inorganic; dissolved; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Chromista; Coast and continental shelf; Fucus vesiculosus; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Group; Growth/Morphology; Laboratory experiment; Macroalgae; Macro-nutrients; Mesocosm or benthocosm; Mortality/Survival; North Atlantic; OA-ICC; Ocean Acidification International Coordination Centre; Ochrophyta; Oxygen; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); Period; pH; Ratio; standard error; Response ratio; logarithm; Salinity; Single species; Species; unique identification; unique identification (Semantic URI); unique identification (URI); Temperate; Temperature; water; Treatment; Type of study; Ocean acidification
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.960596; https://doi.org/10.1594/PANGAEA.960596

Ecological impact of global change is generated by multiple synchronous or asynchronous drivers which interact with each other and with intraspecific variability of sensitivities. In three near-natural experiments, we explored response correlations of full-sibling germling families of the seaweed Fucus vesiculosus towards four global change drivers: elevated CO2 (ocean acidification, OA), ocean warming (OW), combined OA and warming (OAW), nutrient enrichment and hypoxic upwelling. Among families, performance responses to OA and OW as well as to OAW and nutrient enrichment correlated positively whereas performance responses to OAW and hypoxia anti-correlated. This indicates (i) that families robust to one of the three drivers (OA, OW, nutrients) will also not suffer from the two other shifts, and vice versa and (ii) families benefitting from OAW will more easily succumb to hypoxia. Our results may imply that selection under either OA, OW or eutrophication would enhance performance under the other two drivers but simultaneously render the population more susceptible to hypoxia. We conclude that intraspecific response correlations have a high potential to boost or hinder adaptation to multifactorial global change scenarios.