ORCID
- Smart, Christopher: 0000-0001-6329-4139
Abstract
© Inter-Research 201 Understanding the vertical distribution and migratory behaviour of shelled holoplanktonic gastropods is essential in determining the environmental conditions to which they are exposed. This is increasingly important in understanding the effects of ocean acidification and climate change. Here we investigated the vertical distribution of atlantid heteropods by collating data from publications and collections and using the oxygen isotope (? 18 O) composition of single aragonitic shells. Data from publications and collections show 2 patterns of migration behaviour: small species that reside in shallow water at all times, and larger species that make diurnal migrations from the surface at night to deep waters during the daytime. The ? 18 O data show that all species analysed (n = 16) calcify their shells close to the deep chlorophyll maximum. This was within the upper 110 m of the ocean for 15 species, and down to 146 m for a single species. These findings confirm that many atlantid species are exposed to large environmental variations over a diurnal cycle and may already be well adapted to face ocean changes. However, all species analysed rely on aragonite supersaturated waters in the upper < 150 m of the ocean to produce their shells, a region that is projected to undergo the earliest and greatest changes in response to increased anthropogenic CO 2 .
DOI
10.3354/meps12464
Publication Date
2018-01-25
Publication Title
MARINE ECOLOGY PROGRESS SERIES
Volume
587
ISSN
0171-8630
Organisational Unit
School of Geography, Earth and Environmental Sciences
First Page
1
Last Page
15
Recommended Citation
Wall-Palmer, D., Metcalfe, B., Leng, M., Sloane, H., Ganssen, G., Vinayachandran, P., & Smart, C. (2018) 'Vertical distribution and diurnal migration of atlantid heteropods', MARINE ECOLOGY PROGRESS SERIES, 587, pp. 1-15. Available at: https://doi.org/10.3354/meps12464
