(Tables 1+4) Sample site substratum and morphometrics and damage levels of different populations of Laternula elliptica around Antarctica

DOI

We document differences in shell damage and shell thickness in a bivalve mollusc (Laternula elliptica) from seven sites around Antarctica with differing exposures to ice movement. These range from 60% of the sea bed impacted by ice per year (Hangar Cove, Antarctic Peninsula) to those protected by virtually permanent sea ice cover (McMurdo Sound). Patterns of shell damage consistent with blunt force trauma were observed in populations where ice scour frequently occurs; damage repair frequencies and the thickness of shells correlated positively with the frequency of iceberg scour at the different sites with the highest repair rates and thicker shells at Hangar Cove (74.2% of animals damaged) compared to the other less impacted sites (less than 10% at McMurdo Sound). Genetic analysis of population structure using Amplified Fragment Length Polymorphisms (AFLPs) revealed no genetic differences between the two sites showing the greatest difference in shell morphology and repair rates. Taken together, our results suggest that L. elliptica exhibits considerable phenotypic plasticity in response to geographic variation in physical disturbance.

Supplement to: Harper, Elizabeth M; Clark, Melody S; Hoffman, Joseph I; Philipp, Eva E R; Peck, Loyd S; Morley, Simon A (2012): Iceberg Scour and Shell Damage in the Antarctic Bivalve Laternula elliptica. PLoS ONE, 7(9), e46341

Identifier
DOI https://doi.org/10.1594/PANGAEA.848057
Related Identifier https://doi.org/10.1371/journal.pone.0046341
Related Identifier https://doi.org/10.1007/s00442-004-1648-6
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.848057
Provenance
Creator Harper, Elizabeth M; Clark, Melody S ORCID logo; Hoffman, Joseph I ORCID logo; Philipp, Eva E R; Peck, Loyd S; Morley, Simon A
Publisher PANGAEA
Publication Year 2012
Funding Reference German Research Foundation https://doi.org/10.13039/501100001659 Crossref Funder ID 5472008 https://gepris.dfg.de/gepris/projekt/5472008 Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas
Rights Creative Commons Attribution 3.0 Unported; https://creativecommons.org/licenses/by/3.0/
OpenAccess true
Representation
Language English
Resource Type Supplementary Dataset; Dataset
Format text/tab-separated-values
Size 112 data points
Discipline Earth System Research
Spatial Coverage (-58.667W, -77.833S, 140.017E, -62.233N); South Pacific Ocean; Adelie Land; Potter Cove, King George Island, Antarctic Peninsula; Ross Sea