The effects of elevated pCO2 and nutrient levels on Dasysiphonia and Porphyra and the effects of competition and elevated pCO2 and nutrients on the growth of Dasysiphonia and Agardhiella

• Main Authors: Young, C, Gobler, Christopher J
• Format: Dataset
• Language: English
• Published: PANGAEA - Data Publisher for Earth & Environmental Science 2021
• Subjects: Agardhiella subulata; Benthos; Biomass/Abundance/Elemental composition; Bottles or small containers/Aquaria <20 L; Coast and continental shelf; Dasysiphonia japonica; Growth/Morphology; Laboratory experiment; Macroalgae; Macro-nutrients; North Atlantic; Plantae; Porphyra purpurea; Rhodophyta; Single species; Species interaction; Temperate; Event label; Type; Species; Registration number of species; Uniform resource locator/link to reference; Month; Treatment; Growth rate; Growth rate, standard deviation; δ13C; δ13C, standard deviation; Carbon, per tissue dry mass; Carbon, standard deviation; Nitrogen, per tissue dry mass; Nitrogen, standard deviation; Carbon/Nitrogen ratio; Carbon/Nitrogen ratio, standard deviation; Temperature, water; Temperature, water, standard deviation; Salinity; Salinity, standard deviation; pH; 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; Carbonate system computation flag; Carbon dioxide; Carbon dioxide, standard deviation; Fugacity of carbon dioxide water at sea surface temperature wet air; Fugacity of carbon dioxide in seawater, standard deviation; Bicarbonate ion; Bicarbonate ion, standard deviation; Carbonate ion; Carbonate ion, standard deviation; Aragonite saturation state; Aragonite saturation state, standard deviation; Calcite saturation state; Calcite saturation state, standard deviation; Experiment; Spectrophotometric; Calculated using CO2SYS; Calculated using seacarb after Nisumaa et al. 2010; Calculated using seacarb after Orr et al. 2018; Ocean Acidification International Coordination Centre OA-ICC; Long Island; Pacific; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.931777; https://doi.pangaea.de/10.1594/PANGAEA.931777

Coastal ecosystems are prone to multiple anthropogenic and natural stressors including eutrophication, acidification, and invasive species. While the growth of some macroalgae can be promoted by excessive nutrient loading and/or elevated pCO2, responses differ among species and ecosystems. Native to the western Pacific Ocean, the filamentous, turf-forming rhodophyte, Dasysiphonia japonica, appeared in estuaries of the northeastern Atlantic Ocean during the 1980s and the northwestern Atlantic Ocean during the late 2000s. Here, we report on the southernmost expansion of the D. japonica in North America and the effects of elevated nutrients and elevated pCO2 on the growth of D. japonica over an annual cycle in Long Island, New York, USA. Growth limitation of the macroalga varied seasonally. During winter and spring, when water temperatures were : 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 2021-05-18.