Articles | Volume 15, issue 3
Research article
08 Feb 2018
Research article |  | 08 Feb 2018

Anatomical structure overrides temperature controls on magnesium uptake – calcification in the Arctic/subarctic coralline algae Leptophytum laeve and Kvaleya epilaeve (Rhodophyta; Corallinales)

Merinda C. Nash and Walter Adey

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Cited articles

Adey, W.: The Genus Phymatolithon in the Gulf of Maine, Hydrobiologia, 24, 377–420, 1964. 
Adey, W.: The Genus Clathromorphum in the Gulf of Maine, Hydrobiologia, 26, 539–573, 1965. 
Adey, W.: The Genera Lithothamnium, Leptophytum (nov. gen.) and Phymatolithon in the Gulf of Maine, Hydrobiologia, 28, 321–368, 1966a. 
Adey, W.: The Genus Pseudolithophyllum in the Gulf of Maine, Hydrobiologia, 27, 479–597, 1966b. 
Adey, W.: The Distribution of Saxicolous Crustose Corallines in the Northwestern North Atlantic, J. Phycol., 2, 49–54, 1966c. 
Short summary
Past seawater temperatures can be reconstructed using magnesium / calcium ratios of biogenic carbonates. As temperature increases, so does magnesium. Here we show that for these Arctic/subarctic coralline algae, anatomy is the first control on Mg / Ca, not temperature. When using coralline algae for temperature reconstruction, it is first necessary to check for anatomical influences on Mg / Ca.
Final-revised paper