Response of A. aurita ephyrae to three stressors: high-temperature, high-CO2 and low-oxygen ...

• Main Authors: Algueró-Muñiz, Maria, Meunier, Cédric Léo, Holst, Sabine, Alvarez-Fernandez, Santiago, Boersma, Maarten
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 2016
• Subjects: Biological Impacts of Ocean Acidification BIOACID; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.864602; https://doi.pangaea.de/10.1594/PANGAEA.864602

Global change is affecting marine ecosystems through a combination of different stressors such as warming, ocean acidification and oxygen depletion. Very little is known about the interactions among these factors, especially with respect to gelatinous zooplankton. Therefore, in this study we investigated the direct effects of pH, temperature and oxygen availability on the moon jellyfish Aurelia aurita, concentrating on the ephyral life stage. Starved one-day-old ephyrae were exposed to a range of pCO2 (400-4000 ppm) and three different dissolved oxygen levels (from saturated to hypoxic conditions), in two different temperatures (5 and 15 °C) for 7 days. Carbon content and swimming activity were analysed at the end of the incubation period, and mortality noted. General linearized models were fitted through the data, with the best fitting models including two- and three-way interactions between pCO2, temperature and oxygen concentration. The combined effect of the stressors was small but significant, with the ... : Supplement to: Algueró-Muñiz, Maria; Meunier, Cédric Léo; Holst, Sabine; Alvarez-Fernandez, Santiago; Boersma, Maarten (2016): Withstanding multiple stressors: ephyrae of the moon jellyfish (Aurelia aurita, Scyphozoa) in a high-temperature, high-CO2 and low-oxygen environment. Marine Biology, 163(9) ...