The potential impact of underwater exhausted CO2 from innovative ships on invertebrate communities ...

• Main Authors: Wei, Yuzhu, Plath, Lara, Penning, Anne, van der Linden, Maartje, Murk, AlberTinka J, Foekema, Edwin M
• Format: Dataset
• Language: English
• Published: PANGAEA 2019
• Subjects: Benthos; Biomass/Abundance/Elemental composition; Coast and continental shelf; Entire community; Laboratory experiment; Mesocosm or benthocosm; Mortality/Survival; North Atlantic; Pelagos; Soft-bottom community; Temperate; Type; Day of experiment; Treatment; Chlorophyll a; Chlorophyll a, standard deviation; Fluorescence; Periphyton presence; Identification; Polychaeta; Mortality; Shell, mass; Mass; Periphyton cover; pH; Temperature, water; Temperature, water, standard deviation; Salinity; Salinity, standard deviation; Oxygen; Oxygen, standard deviation; Alkalinity, total; Alkalinity, total, standard deviation; Ammonium; Nitrate; Phosphate; Silica, dissolved; 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; 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.913046; https://doi.pangaea.de/10.1594/PANGAEA.913046

Liquefied natural gas (LNG) powered ships equipped with an underwater exhaust system to reduce the ship's water resistance could form a future generation of energy-efficient ships. The potential consequences of the underwater exhaust gas to the local ecosystems are still unknown. Especially, the CO2 levels may locally exceed estimated future global levels. The present study exposes marine communities to a wide range of CO2 dosages, resulting in pH 8.6–5.8 that was remained for 49 days. We found that the zooplankton and benthic community were adversely affected by high CO2 exposure levels. In detail, (1) between pH 6.6 and 7.1 polychaete worms became the dominating group of the benthic community and their larvae dominated the zooplankton group. (2) Due to the reduced grazing pressure and the flux of nutrients from decaying organic material planktonic microalgae (phytoplankton) stared blooming at the highest exposure level. The periphyton (fouling microalgae) community was not able to take advantage under ... : In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2019) 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 2020-02-28. ...