Publication Date:
2024-04-04
Description:
This dataset results from two, month-long global change laboratory experiments conducted in Sitka, Alaska from February 12 to March 18, 2020 (winter experiment) and August 15 to September 16, 2020 (summer experiment). These experiments were used to tease apart the effects of seasonal variation in light availability and nutrients on the response of three high-latitude kelp species (Macrocystis pyrifera, Hedophyllum nigripes, and Neoagarum fimbriatum) to pH and temperature. Experimental controls were designed to approximate current environmental conditions in Sitka Sound, and treatments were based on projected end-of-century scenarios of ocean acidification (OA) and warming (OW) for this region. At the end of the experiments, the investigators assessed the seasonal impact of OW and OA on kelp growth rates, thallus nitrogen content, and carbon acquisition strategy based on thallus δ13C values. Finally, to test whether kelp palatability was impacted by future warming and acidification, tissue of H. nigripes and N. fimbriatum grown during the experiments was used to perform feeding assays with a common kelp forest consumer.
Keywords:
Alkalinity, total; Alkalinity, total, standard deviation; Aragonite saturation state; Aragonite saturation state, standard deviation; Area; Benthos; Bicarbonate ion; Bicarbonate ion, standard deviation; Biomass/Abundance/Elemental composition; Blade length; Blade width; Calcite saturation state; Calcite saturation state, standard deviation; Calculated using seacarb after Nisumaa et al. (2010); Calculated using seacarb after Orr et al. (2018); Carbon; Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard deviation; Carbon/Nitrogen ratio; Carbonate ion; Carbonate ion, standard deviation; Carbonate system computation flag; Carbon dioxide; Carbon dioxide, standard deviation; Chromista; Coast and continental shelf; Comment; Containers and aquaria (20-1000 L or 〈 1 m**2); Date; Date/time end, experiment; Date/time start, experiment; Diameter; EXP; Experiment; Feces, dry, total; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Fugacity of carbon dioxide in seawater, standard deviation; Growth/Morphology; Hedophyllum nigripes; Identification; Indicator; Laboratory experiment; Macroalgae; Macrocystis pyrifera; Mass; Measured using software ImageJ; Neoagarum fimbriatum; Nitrogen; North Pacific; Number; OA-ICC; Ocean Acidification International Coordination Centre; Ochrophyta; Other studied parameter or process; Oxygen, dissolved; Oxygen, dissolved, standard deviation; Partial pressure of carbon dioxide, standard deviation; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); pH; pH, standard deviation; Position; Quality code; Replicate; Salinity; Salinity, standard deviation; Sample type; Season; Single species; Species; Stipe length; Surface area; Talon_Is; Temperate; Temperature; Temperature, water; Temperature, water, standard deviation; Treatment; Type of study; Wet mass; δ13C; δ15N
Type:
Dataset
Format:
text/tab-separated-values, 38174 data points
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