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Arctic marine phytobenthos of northern Baffin Island
Küpper, F.C.; Peters, A.F.; Shewring, D.M.; Sayer, M.D.J.; Mystikou, A.; Brown, H.; Azzopardi, E.; Dargent, O.; Strittmatter, M.; Brennan, D.; Asensi, A.O.; Van West, P.; Wilce, R.T. (2016). Arctic marine phytobenthos of northern Baffin Island. J. Phycol. 52(4): 532-549. https://hdl.handle.net/10.1111/jpy.12417
In: Journal of Phycology. Blackwell Science: New York. ISSN 0022-3646; e-ISSN 1529-8817, more
Peer reviewed article  

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Keywords
    Climate Change
    Data
    Environmental Managers & Monitoring
    Exploitable Scientific Result
    Marine Sciences
    Marine Sciences > Biodiversity
    Scientific Community
    Scientific Publication
    Marine
Author keywords
    COI; cox3; Desmarestia; germling emergence; macroalgae; molecularbarcoding; Phaeophyceae; Pylaiella

Project Top | Authors 
  • Association of European marine biological laboratories, more

Authors  Top 
  • Küpper, F.C.
  • Peters, A.F.
  • Shewring, D.M.
  • Sayer, M.D.J.
  • Mystikou, A.
  • Brown, H.
  • Azzopardi, E.
  • Dargent, O.
  • Strittmatter, M.
  • Brennan, D.
  • Asensi, A.O.
  • Van West, P.
  • Wilce, R.T.

Abstract
    Global climate change is expected to alter the polar bioregions faster than any other marine environment. 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and 1 Dinophyceae are reported, based on collections of an expedition to the area in 2009, complemented by unpublished records of Robert T. Wilce and the first-ever photographic documentation of the phytobenthos of the American Arctic.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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