Vertical distribution and diurnal migration of atlantid heteropods

Deborah Wall-Palmer, Brett Metcalfe, Melanie J. Leng, Hilary J. Sloane, Gerald Ganssen, P. N. Vinayachandran, Christopher W. Smart

Research output: Contribution to JournalArticleAcademicpeer-review

Abstract

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 (?18O) 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 ?18O 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 CO2.

Original languageEnglish
Pages (from-to)1-15
Number of pages15
JournalMarine Ecology Progress Series
Volume587
DOIs
Publication statusPublished - 25 Jan 2018

Fingerprint

shell (molluscs)
vertical distribution
oceans
migratory behavior
shell
Gastropoda
isotopes
climate change
ocean
chlorophyll
oxygen
environmental factors
aragonite
gastropod
water
oxygen isotope
shallow water
deep water
environmental conditions

Keywords

  • Atlantidae
  • Calcification
  • Diurnal migration
  • Gastropod
  • Ocean acidification
  • Oxygen isotopes
  • Vertical distribution

Cite this

Wall-Palmer, D., Metcalfe, B., Leng, M. J., Sloane, H. J., Ganssen, G., Vinayachandran, P. N., & Smart, C. W. (2018). Vertical distribution and diurnal migration of atlantid heteropods. Marine Ecology Progress Series, 587, 1-15. https://doi.org/10.3354/meps12464
Wall-Palmer, Deborah ; Metcalfe, Brett ; Leng, Melanie J. ; Sloane, Hilary J. ; Ganssen, Gerald ; Vinayachandran, P. N. ; Smart, Christopher W. / Vertical distribution and diurnal migration of atlantid heteropods. In: Marine Ecology Progress Series. 2018 ; Vol. 587. pp. 1-15.
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Vertical distribution and diurnal migration of atlantid heteropods. / Wall-Palmer, Deborah; Metcalfe, Brett; Leng, Melanie J.; Sloane, Hilary J.; Ganssen, Gerald; Vinayachandran, P. N.; Smart, Christopher W.

In: Marine Ecology Progress Series, Vol. 587, 25.01.2018, p. 1-15.

Research output: Contribution to JournalArticleAcademicpeer-review

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