Greatorex, R

Knights, A

Independently, ocean warming (OW) and acidification (OA) from increased anthropogenic atmospheric carbon dioxide are argued to be two of the greatest threats to marine organisms. Increasingly, their interaction (ocean acidification and warming, OAW) is shown to have wide-ranging consequences to biological functioning, population and community structure, species interactions and ecosystem service provision. Here, using a multi-trophic experiment, we tested the effects of future OAW scenarios on two widespread intertidal species, the blue mussel Mytilus edulis and its predator Nucella lapillus. Results indicate negative consequences of OAW on the growth, feeding and metabolic rate of M. edulis and heightened predation risk. In contrast, Nucella growth and metabolism was unaffected and feeding increased under OAW but declined under OW suggesting OA may offset warming consequences. Should this differential response between the two species to OAW, and specifically greater physiological costs to the prey than its predator come to fruition in the nature, fundamental change in ecosystem structure and functioning could be expected as trophic interactions become disrupted

Plymouth Electronic Archive and Research Library

Differential effects of ocean acidification and warming on biological functioning of a predator and prey species may alter future trophic interactions

https://pearl.plymouth.ac.uk/bitstream/10026.1/20314/1/1-s2.0-S0141113623000314-main.pdf

Differential effects of ocean acidification and warming on biological functioning of a predator and prey species may alter future trophic interactions

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