Coralline Algae as Recorders of Past Climatic and Environmental Conditions

Nicholas Kamenos, Heidi L. Burdett, Nicolas Darrenougue

Research output: Chapter in Book/Report/Conference proceedingChapter (peer-reviewed)

6 Citations (Scopus)

Abstract

Calcifying marine organisms can be used as recorders, or proxies, of past environmental conditions if they lock physical or chemical signals within their skeletal material. Coralline algae lay down regular growth bands and the study of their structure and composition has gained increasing attention as a technique for reconstructing past environments in tropical, temperate and polar regions. Structurally, growth band width and percentage calcification have been used as records of historic light availability (e.g. due to cloud cover and sea ice extent). The chemical composition of their high Mg calcite skeleton has received significantly more attention, being used to reconstruct temperature, salinity, dissolved inorganic carbon, upwelling patterns and wider climate indices. At the ecosystem level, such reconstructions have been used to shed light on the drivers of past changes in marine productivity. Against a backdrop of projected ocean acidification coralline algae show significant potential for reconstructing historic changes in ocean acidification-driven marine carbonate chemistry. Due to their global distribution, coralline algae are becoming a regularly used tool for understanding environmental and ecosystem change, particularly in areas where other proxies are not available or instrumental records are sparse.
Original languageEnglish
Title of host publicationRhodolith/Maërl Beds
Subtitle of host publicationA Global Perspective
EditorsRafael Riosmena-Rodríguez, Wendy Nelson, Julio Aguirre
PublisherSpringer International Publishing
Pages27-53
Number of pages27
VolumePart 1
ISBN (Electronic)9783319293158
ISBN (Print)9783319293134
DOIs
Publication statusPublished - 2017

Publication series

NameCoastal Research Library
PublisherSpringer International Publishing
Volume15
ISSN (Print)2211-0577

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