TY - DATA ID - wei2019tpio T1 - The potential impact of underwater exhausted CO2 from innovative ships on invertebrate communities AU - Wei, Yuzhu AU - Plath, Lara AU - Penning, Anne AU - van der Linden, Maartje AU - Murk, AlberTinka J AU - Foekema, Edwin M PY - 2019 PB - PANGAEA DO - 10.1594/PANGAEA.913046 UR - https://doi.org/10.1594/PANGAEA.913046 N2 - 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 these conditions. (3) Marine snails' (periwinkle) shell damage and high mortality were observed at pH < 6.6. However, the growth of the surviving periwinkles was not directly related to pH, but was positively correlated with the availability of periphyton and negatively correlated with the polychaete worm density that most likely also used the periphyton as food source. Our result indicates that the impact of underwater exhaust gasses depends on various factors including local biological and abiotic conditions, which will be included in future research. KW - Benthos KW - Biomass/Abundance/Elemental composition KW - Coast and continental shelf KW - Entire community KW - Laboratory experiment KW - Mesocosm or benthocosm KW - Mortality/Survival KW - North Atlantic KW - Pelagos KW - Soft-bottom community KW - Temperate ER -