Seawater carbonate chemistry and community composition in mangrove ponds with pulsed hypoxic and acidified conditions ...

• Main Authors: Gedan, Keryn B, Altieri, Andrew H, Feller, Ilka, Burrell, Rebecca B, Breitburg, Denise
• Format: Dataset
• Language: English
• Published: PANGAEA 2023
• Subjects: Benthos; Coast and continental shelf; Community composition and diversity; Entire community; Field observation; North Atlantic; Oxygen; Pelagos; Soft-bottom community; Tropical; Type of study; Site; Number; Transect; DATE/TIME; Distance; Coverage; Name; Category; Depth, surface of flocculated sediment to hard peat bottom; Depth, algal mat to hard peat bottom; Depth, water surface to hard peat bottom; Comment; LATITUDE; LONGITUDE; Salinity; Temperature, water; Alkalinity, total; pH; Carbonate system computation flag; 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; Carbon, inorganic, dissolved; Aragonite saturation state; Calcite saturation state; Potentiometric titration; Potentiometric; 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.958715; https://doi.pangaea.de/10.1594/PANGAEA.958715

The potential resilience of biological communities to accelerating rates of global change has received considerable attention. We suggest that some shallow aquatic ecosystems, where temperature, dissolved oxygen (DO), and pH can exhibit extreme variation on short timescales of hours or days, provide an opportunity to develop a mechanistic understanding of species persistence and community assembly under harsh environmental conditions. Extreme diel swings in DO and pH have been observed in eutrophic temperate ecosystems, and here, we describe a similar phenomenon consistently occurring across tropical sites that included relatively remote atolls on the Meso-American barrier reefs in Belize and oligotrophic coastal lagoons in Panama. In particular, we documented large daily swings in temperature, DO, and pH within shallow ponds of Caribbean mangrove forests. Water in seven of 13 ponds went hypoxic (<2 mg/L DO) during the multiday sampling period, and pH dipped nightly to low levels, falling below 7.0 in ... : 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 2023-05-08. ...