Combined effects of climate change stressors and predators with contrasting feeding-digestion strategies on a mussel species

Patricio H. Manríquez, Claudio P. González, María Elisa Jara, Sue Ann Watson, Rodrigo Torres, Paolo Domenici, Cristian Duarte

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

We investigated the combined effects of Ocean Warming (OW), Acidification (OA) and predator cues (Non-Consumptive Effects; NCEs) of two predators with contrasting feeding-digestion strategies on the mussel Perumytilus purpuratus. We considered starfish-NCEs (partially external digestion) and snail-NCEs (internal digestion). Mussels were exposed for 13 weeks to cross-factored OA (~500 and ~1400 μatm, pCO2) and OW (~15 and ~20 °C) conditions, in the presence/absence of NCEs from one or both predators. Mussels exposed to both NCEs exhibited smaller length and buoyant weight growth than those under control or snail-NCEs conditions. Mussels exposed to starfish-NCEs exhibited smaller wet mass than control mussels. OW and starfish-NCEs in isolation or combined with snail-NCEs increased mussel oxygen consumption. Byssal biogenesis was affected by the three-factors interaction. Clearance rates were affected by the OW × OA interaction. We suggest that mainly starfish-NCEs, in isolation or interacting with OA or/and OW, can threat mussel traits and the associated community.

Original languageEnglish
Article number114554
JournalMarine Pollution Bulletin
Volume187
DOIs
Publication statusPublished - Feb 2023

Keywords

  • Climate change biology
  • Multiple stressors
  • Non-consumptive effects
  • Ocean acidification
  • Ocean warming
  • Predator cues

ASJC Scopus subject areas

  • Oceanography
  • Aquatic Science
  • Pollution

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