Disparate response of decapods to low pH: a meta-analysis of life history, physiology and behavior traits across life stages and environments.

OCAMPO, E.H.; NUÑEZ, JESÚS; RIBEIRO, P.D.; PÉREZ GARCÍA, M.; BAS, C.C.; LUPPI TOMÁS

MARINE POLLUTION BULLETIN

PERGAMON-ELSEVIER SCIENCE LTD

Lugar: Amsterdam; Año: 2024

0025-326X

We employed a meta-analysis to determine if the presumed resilience of decapods toocean acidification extends to all biological aspects, environments, and life stages.Most response categories appeared unaffected by acidification. However, certainfitness-related traits (growth, survival, and, to some extent, calcification) wereimpacted. Acid-base balance and stress response scaled positively with reductions inpH, which maintains homeostasis, possibly at the cost of other processes. Juvenileswere the only stage impacted by acidification, believed to reduce recruitment. Weobserved few differences in responses to acidification among decapods inhabitingcontrasting environments. Our meta-analysis shows decapods as a group slightly tomoderately sensitive to low pH, with impacts on some biological aspects rather than onall specific life stages or habitats. Although extreme pH scenarios may not occur in theopen ocean, coastal and estuarine areas might experience lower pH levels in the nearto medium future, posing potential challenges for decapods.