Thermal stress, ocean acidification and deoxygenation impact on cellular (oxidative stress biomarker), physiological (biomineralization, growth) and population (abundance) level responses in pteropod Limacina helicina ...

• Main Authors: Bednaršek, Nina, Feely, Richard A, Beck, Marcus W, Glippa, Olivier, Kanerva, Mirella, Engström-Öst, Jonna
• Format: Dataset
• Language: English
• Published: PANGAEA 2018
• Subjects: Event label; Date/Time of event; Latitude of event; Longitude of event; Elevation of event; Aragonite saturation state; pH; Oxygen; Temperature, water; Fluorescence; Carbon dioxide, partial pressure; Limacina helicina; CTD/Rosette; 33RO20160505; 33RO20160524; Ronald H. Brown; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.892790; https://doi.pangaea.de/10.1594/PANGAEA.892790

Understanding the interactive effects of multiple stressors on pelagic mollusks associated with global climate change is especially important in highly productive coastal ecosystems of the upwelling regime, such as the California Current System. Due to temporal overlap between an El Niño event and springtime intensification of the upwelling, pteropods of the California Current System were exposed to co-occurring increased temperature, low Ωar and pH, and deoxygenation. The variability in the natural gradients during NOAA's WCOA 2016 cruise provided a unique opportunity for synoptic study of chemical and biological interactions. We investigated the effects of in situ multiple drivers and their interactions across cellular, physiological, and population levels. Oxidative stress biomarkers were used to assess pteropods' cellular status and antioxidant defenses. OA stress induced significant activation of oxidative stress biomarkers, as indicated by increased levels of lipid peroxidation (LPX) but the ... : NOAA Ocean Acidification Program contract number 4791 ...