Functional consequences of prey acclimation to ocean acidification for the prey and its predator

6533b882fe1ef96bd12d9e13

RESEARCH PRODUCT

Functional consequences of prey acclimation to ocean acidification for the prey and its predator

Sam Dupont Matteo Mercurio Antonio Giacoletti Alessandro Rinaldi Simone Mirto Leonardo D'aquisto Maria Antonietta Sabatino Gianluca Sarà

subject

Condition index Registration number of species Salinity Temperate Bottles or small containers/Aquaria (<20 L)inorganic Alkalinity Brachidontes pharaonis Incubation duration Experiment Temperature water Carbon inorganic dissolved Assimilation efficiency Eriphia verrucosa Breaking load Calculated using seacarb after Nisumaa et al 2010 Aragonite saturation state Alkalinity total Bottles or small containers Aquaria 20 L total pH Temperature Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) standard error dissolved Carbonate ion Laboratory experiment Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)standard error Earth System Research Uniform resource locator link to reference animal structures Calcite saturation state Arthropoda Length water Growth Morphology Figure Benthos Uniform resource locator/link to reference Mediterranean Sea Animalia Behaviour Bicarbonate ion Time in seconds Type Temperature water standard error Calculated using seacarb after Nisumaa et al. (2010)Species pH standard error Calcite saturation state standard error Growth rate Bottles or small containers/Aquaria (<20 L)Calculated using CO2SYS fungi Carbonate system computation flag Fugacity of carbon dioxide (water) at sea surface temperature (wet air)Carbon Treatment Aragonite saturation state standard error Partial pressure of carbon dioxide water at sea surface temperature wet air Carbon dioxide Mollusca Growth/Morphology Benthic animals Fugacity of carbon dioxide water at sea surface temperature wet air Coast and continental shelf Species interaction

description

Ocean acidification is the suite of chemical changes to the carbonate system of seawater as a consequence of anthropogenic carbon dioxide (CO2) emissions. Despite a growing body of evidences demonstrating the negative effects of ocean acidification on marine species, the consequences at the ecosystem level are still unclear. One factor limiting our ability to upscale from species to ecosystem is the poor mechanistic understanding of the functional consequences of the observed effects on organisms. This is particularly true in the context of species interactions. The aim of this work was to investigate the functional consequence of the exposure of a prey (the mussel Brachidontes pharaonis) to ocean acidification for both the prey and its predator (the crab Eriphia verrucosa). Mussels exposed to pH 7.5 for >4 weeks showed significant decreases in condition index and in mechanical properties (65% decrease in maximum breaking load) as compared with mussels acclimated to pH 8.0. This translated into negative consequences for the mussel in presence of the predator crab. The crab feeding efficiency increased through a significant 27% decrease in prey handling time when offered mussels acclimated to the lowest pH. The predator was also negatively impacted by the acclimation of the prey, probably as a consequence of a decreased food quality. When fed with prey acclimated under decreased pH for 3 months, crab assimilation efficiency significantly decreased by 30% and its growth rate was 5 times slower as compared with crab fed with mussels acclimated under high pH. Our results highlight the important to consider physiological endpoints in the context of species interactions.

year	journal	country	edition	language
2016-01-01

https://doi.org10.1594/pangaea.860509 https://doi.org/https://doi.org/10.1594/PANGAEA.860509