Observations of a living macroalga at 166m depth in a high Arctic fjord

Kirstin S. Meyer, Andrew K. Sweetman

Research output: Contribution to journalArticle

Abstract

Still photos of the seafloor in Raudfjorden, Spitsbergen, recorded in 2011, showed an abundant macroalga at a depth of 166 m. The macroalga was observed attached to stones of varying size and streaming in the bottom current, which would imply that the alga was alive and growing in situ. The alga likely experiences very low-light conditions, as it is present in a turbid fjord influenced by glacial sedimentation. Arctic macroalgae are often adapted to low-light conditions, but to the authors’ knowledge, the present report is the deepest record of living macroalgae in the high Arctic.
Original languageEnglish
Article numbere58
JournalMarine Biodiversity Records
Volume8
DOIs
Publication statusPublished - 2015

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macroalga
fjord
glacial sedimentation
alga
bottom current
seafloor
stone
in situ

Cite this

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Observations of a living macroalga at 166m depth in a high Arctic fjord. / Meyer, Kirstin S.; Sweetman, Andrew K.

In: Marine Biodiversity Records, Vol. 8, e58, 2015.

Research output: Contribution to journalArticle

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AU - Sweetman, Andrew K.

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AB - Still photos of the seafloor in Raudfjorden, Spitsbergen, recorded in 2011, showed an abundant macroalga at a depth of 166 m. The macroalga was observed attached to stones of varying size and streaming in the bottom current, which would imply that the alga was alive and growing in situ. The alga likely experiences very low-light conditions, as it is present in a turbid fjord influenced by glacial sedimentation. Arctic macroalgae are often adapted to low-light conditions, but to the authors’ knowledge, the present report is the deepest record of living macroalgae in the high Arctic.

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DO - 10.1017/S175526721500038X

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JO - Marine Biodiversity Records

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SN - 1755-2672

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