Supplementary material from "Pacific oysters do not compensate growth retardation following extreme acidification events" ...

• Main Authors: Lutier, Mathieu, Pernet, Fabrice, Di Poi, Carole
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: The Royal Society 2023
• Subjects: Environmental Science; Systems Biology; Pacific; Crassostrea gigas; Ocean acidification; Pacific oyster
• Online Access: https://dx.doi.org/10.6084/m9.figshare.c.6777775.v1; https://rs.figshare.com/collections/Supplementary_material_from_Pacific_oysters_do_not_compensate_growth_retardation_following_extreme_acidification_events_/6777775/1

Ocean acidification caused by anthropogenic carbon dioxide emissions alters the growth of marine calcifiers. Although the immediate effects of acidification from global ocean models have been well studied on calcifiers, their recovery capacity over a wide range of pH has never been evaluated. This aspect is crucial because acidification events that arise in coastal areas can far exceed global ocean predictions. However, such acidification events could occur transiently, allowing for recovery periods during which the effects on growth would be compensated, maintained or amplified. Here we evaluated the recovery capacity of a model calcifier, the Pacific oyster Crassostrea gigas . We exposed juveniles to 15 pH conditions between 6.4 and 7.8 for 14 days. Oyster growth was retarded below pH 7.1 while shells were corroded at pH 6.5. We then placed the oysters under ambient pH > 7.8 for 42 days. Growth retardation persisted at pH levels below pH 7.1 even after the stress was removed. However, despite persistent ...