First report of Laternula elliptica in the Antarctic intertidal zone

Many Antarctic marine invertebrates are considered to be highly stenothermal, subjected to loss of functionality at increased temperatures and so at high risk of mortality in a rapidly warming environment. The bivalveLaternula ellipticais often used as a model taxon to test these theories. Here, we...

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Bibliographic Details
Main Authors: Waller, Catherine L., Overall, Andrew, Fitzcharles, Elaine M., Griffiths, Huw
Format: Article in Journal/Newspaper
Language:English
Published: Springer Verlag (Germany) 2016
Subjects:
Online Access:http://eprints.brighton.ac.uk/16705/
http://eprints.brighton.ac.uk/16705/1/Polar%20Biology.pdf
Description
Summary:Many Antarctic marine invertebrates are considered to be highly stenothermal, subjected to loss of functionality at increased temperatures and so at high risk of mortality in a rapidly warming environment. The bivalveLaternula ellipticais often used as a model taxon to test these theories. Here, we report the first instanceL. ellipticafrom an intertidal site. Genetic analysis of the tissue confirms the species identity. A total of seven animals ranging in length from 6 to 85mm were collected from 3×0.25m2quadrats of intertidal sediments at St Martha Cove on James Ross Island, Eastern Antarctic Peninsula. Ambient temperatures of 7.5°C within the sediment and 10°C (air) were recorded. This raises questions as to the current perception that “many Antarctic marine invertebrates cannot adapt to higher temperatures”.