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

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 vi...

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Bibliographic Details
Main Authors: Harper, Elizabeth M, Clark, Melody S, Hoffman, Joseph I, Philipp, Eva E R, Peck, Loyd S, Morley, Simon A
Format: Dataset
Language:English
Published: PANGAEA 2012
Subjects:
Event label
Latitude of event
Longitude of event
Area/locality
Sample amount
Laternula elliptica, length of valve
Shell thickness
Percentage
Laternula elliptica, age
Number of observations
Substratum
Reference/source
Biological sample
Research station
Multiple investigations
Jubany_Dallmann
Carlini/Jubany Station
Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas SPP1158
Antarc*
Antarctic
Antarctic Peninsula
Antarctica
Iceberg*
McMurdo Sound
Sea ice
Online Access:https://dx.doi.org/10.1594/pangaea.848057
https://doi.pangaea.de/10.1594/PANGAEA.848057
Description
Summary: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 ... : 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 ...

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