Arctic marine phytobenthos of northern Baffin Island

Frithjof C. Küpper (Corresponding Author), Akira F. Peters, Dawn M. Shewring, Martin D. J. Sayer, Alexandra Mystikou, Hugh Brown, Elaine Azzopardi, Olivier Dargent, Martina Strittmatter, Debra Brennan, Aldo O. Asensi, Pieter Van West, Robert T. Wilce

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Abstract

Global climate change is expected to alter the polar bioregions faster than any other marine environment on Earth. This study assesses the biodiversity of seaweeds and associated eukaryotic pathogens of an established study site in northern Baffin Island (72° N), providing a baseline inventory for future work assessing impacts of the currently ongoing changes in the Arctic marine environment. A total of 33 Phaeophyceae, 24 Rhodophyceae, 2 Chlorophyceae, 12 Ulvophyceae, 1 Trebouxiophyceae and 1 Dinophyceae are reported, based on collections of an expedition to the area in 2009, complemented by unpublished records of Robert T. Wilce and the first-ever photographic documentation of the phytobenthos of the American Arctic. Molecular barcoding of isolates raised from incubated substratum samples revealed the presence of 20 species of brown seaweeds, including gametophytes of kelp and of a previously unsequenced Desmarestia closely related to D. viridis, two species of Pylaiella, the kelp endophyte Laminariocolax aecidioides and 11 previously unsequenced species of the Ectocarpales, highlighting the necessity to include molecular techniques for fully unraveling cryptic algal diversity. This study also includes the first records of Eurychasma dicksonii, a eukaryotic pathogen affecting seaweeds, from the American Arctic. Overall, this study provides both the most accurate inventory of seaweed diversity of the northern Baffin Island region to date and can be used as an important basis to understand diversity changes with climate change.
Original languageEnglish
Pages (from-to)532-549
Number of pages18
JournalJournal of Phycology
Volume52
Issue number4
Early online date7 Jul 2016
DOIs
Publication statusPublished - Aug 2016

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phytobenthos
seaweed
marine environment
pathogen
arctic environment
climate change
endophyte
global climate
biodiversity

Keywords

  • COI
  • cox3
  • desmarestia
  • macroalgae
  • phaeophyceae
  • pylaiella
  • germling emergence
  • molecular barcoding

Cite this

Küpper, F. C., Peters, A. F., Shewring, D. M., Sayer, M. D. J., Mystikou, A., Brown, H., ... Wilce, R. T. (2016). Arctic marine phytobenthos of northern Baffin Island. Journal of Phycology, 52(4), 532-549. https://doi.org/10.1111/jpy.12417

Arctic marine phytobenthos of northern Baffin Island. / Küpper, Frithjof C. (Corresponding Author); Peters, Akira F.; Shewring, Dawn M.; Sayer, Martin D. J.; Mystikou, Alexandra; Brown, Hugh; Azzopardi, Elaine; Dargent, Olivier; Strittmatter, Martina; Brennan, Debra; Asensi, Aldo O. ; Van West, Pieter; Wilce, Robert T.

In: Journal of Phycology, Vol. 52, No. 4, 08.2016, p. 532-549.

Research output: Contribution to journalArticle

Küpper, FC, Peters, AF, Shewring, DM, Sayer, MDJ, Mystikou, A, Brown, H, Azzopardi, E, Dargent, O, Strittmatter, M, Brennan, D, Asensi, AO, Van West, P & Wilce, RT 2016, 'Arctic marine phytobenthos of northern Baffin Island' Journal of Phycology, vol. 52, no. 4, pp. 532-549. https://doi.org/10.1111/jpy.12417
Küpper FC, Peters AF, Shewring DM, Sayer MDJ, Mystikou A, Brown H et al. Arctic marine phytobenthos of northern Baffin Island. Journal of Phycology. 2016 Aug;52(4):532-549. https://doi.org/10.1111/jpy.12417
Küpper, Frithjof C. ; Peters, Akira F. ; Shewring, Dawn M. ; Sayer, Martin D. J. ; Mystikou, Alexandra ; Brown, Hugh ; Azzopardi, Elaine ; Dargent, Olivier ; Strittmatter, Martina ; Brennan, Debra ; Asensi, Aldo O. ; Van West, Pieter ; Wilce, Robert T. / Arctic marine phytobenthos of northern Baffin Island. In: Journal of Phycology. 2016 ; Vol. 52, No. 4. pp. 532-549.
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title = "Arctic marine phytobenthos of northern Baffin Island",
abstract = "Global climate change is expected to alter the polar bioregions faster than any other marine environment on Earth. This study assesses the biodiversity of seaweeds and associated eukaryotic pathogens of an established study site in northern Baffin Island (72° N), providing a baseline inventory for future work assessing impacts of the currently ongoing changes in the Arctic marine environment. A total of 33 Phaeophyceae, 24 Rhodophyceae, 2 Chlorophyceae, 12 Ulvophyceae, 1 Trebouxiophyceae and 1 Dinophyceae are reported, based on collections of an expedition to the area in 2009, complemented by unpublished records of Robert T. Wilce and the first-ever photographic documentation of the phytobenthos of the American Arctic. Molecular barcoding of isolates raised from incubated substratum samples revealed the presence of 20 species of brown seaweeds, including gametophytes of kelp and of a previously unsequenced Desmarestia closely related to D. viridis, two species of Pylaiella, the kelp endophyte Laminariocolax aecidioides and 11 previously unsequenced species of the Ectocarpales, highlighting the necessity to include molecular techniques for fully unraveling cryptic algal diversity. This study also includes the first records of Eurychasma dicksonii, a eukaryotic pathogen affecting seaweeds, from the American Arctic. Overall, this study provides both the most accurate inventory of seaweed diversity of the northern Baffin Island region to date and can be used as an important basis to understand diversity changes with climate change.",
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