Combined climate stressors constrain various mechanisms for thermal tolerance in the scallop Pecten maximus.

ABSTRACT: Unfavourable climatic conditions challenge an animal's performance and fitness. We investigated how cellular homeostasis relates to whole-animal physiology in the marine bivalve Pecten maximus under warming (W), warming plus hypercapnia (WHc) or hypoxia (WHo), and the combination of all three drivers (deadly trio, DT). Starting at 14°C, temperatures were increased stepwise by 2°C per 48 h while gill tissue was sampled from experimental exposures to test for indicators of intracellular stress, including lipid peroxidation, protein damage and degradation, apoptosis and heat shock responses. Whole-animal water filtration rate, routine metabolic rate (RMR), haemolymph PO2, pseudofaeces ejection, mantle tissue intracellular acidosis and gill tissue antioxidative capacity were measured in W and

SUBMITTER: Gotze S 

PROVIDER: S-EPMC12752514 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature