Seawater carbonate chemistry during experiments with Littorina littorea, 2007, supplement to: Bibby, Ruth; Cleall-Harding, Polly; Rundle, Simon; Widdicombe, Stephen; Spicer, John I (2007): Ocean acidification disrupts induced defences in the intertidal gastropod Littorina littorea. Biology Letters, 3(6), 699-701


We demonstrate that acidified seawater can have indirect biological effects by disrupting the capability of organisms to express induced defences, hence, increasing their vulnerability to predation. The intertidal gastropod Littorina littorea produced thicker shells in the presence of predation (crab) cues but this response was disrupted at low seawater pH. This response was accompanied by a marked depression in metabolic rate (hypometabolism) under the joint stress of high predation risk and reduced pH. However, snails in this treatment apparently compensated for a lack of morphological defence, by increasing their avoidance behaviour, which, in turn, could affect their interactions with other organisms. Together, these findings suggest that biological effects from ocean acidification may be complex and extend beyond simple direct effects.

Metadata Access
Creator Spicer, John I;Widdicombe, Stephen;Cleall-Harding, Polly;Bibby, Ruth;Rundle, Simon
Publisher PANGAEA - Data Publisher for Earth & Environmental Science
Publication Year 2007
Rights Creative Commons Attribution 3.0 Unported (CC-BY)
Language English
Resource Type Supplementary Dataset
Format text/tab-separated-values
Discipline Earth System Research