Seawater carbonate chemistry and growth and photophysiology of two tropical reef macroalgae ...

• Main Authors: Page, Heather N, McCoy, Sophie J, Spencer, Robert G M, Burnham, Katherine A, Hewett, Clay, Johnson, Maggie Dorothy
• Format: Dataset
• Language: English
• Published: PANGAEA 2024
• Subjects: Benthos; Bottles or small containers/Aquaria <20 L; Calcification/Dissolution; Chlorophyta; Chromista; Coast and continental shelf; Dictyota sp.; Growth/Morphology; Halimeda tuna; Laboratory experiment; Macroalgae; North Atlantic; Ochrophyta; Plantae; Primary production/Photosynthesis; Respiration; Single species; Temperate; Type of study; Species; Treatment; Wet mass; Wet mass, standard deviation; Net photosynthesis rate, oxygen; Net photosynthesis rate, standard deviation; Respiration rate, oxygen; Respiration rate, oxygen, standard deviation; Maximum quantum yield of photosystem II; Maximum quantum yield of photosystem II, standard deviation; Chlorophyll a; Chlorophyll a, standard deviation; Chlorophyll b; Chlorophyll b, standard deviation; Carotenoids; Carotenoids, standard deviation; Buoyant mass; Mass, standard deviation; Surface area; Surface area, standard deviation; Calcification rate; Calcification rate, standard deviation; Net calcification rate of calcium carbonate, light; Net calcification rate of calcium carbonate, dark; Temperature, water; Temperature, water, standard deviation; Salinity; Salinity, standard deviation; Oxygen, dissolved; Oxygen, dissolved, standard deviation; Carbon, inorganic, dissolved; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.964582; https://doi.pangaea.de/10.1594/PANGAEA.964582

Focusing on algal taxa from two different functional groups on Caribbean coral reefs, we exposed fleshy (Dictyota spp.) and calcifying (Halimeda tuna) macroalgae to ambient and low seawater pH for 25 days in an outdoor experimental system in the Florida Keys. We quantified algal growth, calcification, photophysiology, and DOC production across pH treatments. ... : In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2022) 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 2024-01-05. ...