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<em>Archaeperidinium saanichi</em> sp. nov

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Authors:
  • Mertens, Kenneth Neil ;
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    Ghent University
  • Yamaguchi, Aika ;
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    University of British Columbia
  • Kawami, Hisae ;
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    Nagasaki University
  • dos Santos Ribeiro, Sofia Isabel ;
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    Section of Phycology, Department of Biology, Faculty of Science, Københavns Universitet
  • Leander, Brian S. ;
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    University of British Columbia
  • Price, Andrea Michelle ;
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    University of Victoria
  • Pospelova, Vera ;
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    University of Victoria
  • Ellegaard, Marianne ;
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    Orcid logo0000-0002-6032-3376
    Marine Biology, Department of Biology, Faculty of Science, Københavns Universitet
  • Matsuoka, Kazumi
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    Nagasaki University
Subtitle:
a new species based on morphological variation of cyst and theca within the <em>Archaeperidinium minutum</em> Jörgensen 1912 species complex
DOI:
10.1016/j.marmicro.2012.08.002
Abstract:
In this paper we describe a new species, Archaeperidinium saanichi sp. nov. within the Archaeperidinium minutum Jörgensen 1912 species complex. We examined the morphological variation of the cyst and motile stage by incubation experiments from sediment samples collected in coastal British Columbia (Canada), and compared it to closely related species. The theca of A. saanichi is differentiated from related species by overall size, the asymmetry of the intercalary plates and the right-sulcal plate (S.d.) not touching the cingulum. We provide a key to differentiate all closely related species. A. saanichi can be readily distinguished from A. minutum by a distinctively large cyst with a broad 2a type archeopyle and regularly spaced processes with relatively broad bases and aculeate process tips. Molecular phylogenetic analyses of large and small subunit (LSU and SSU) rDNA sequences demonstrated a close affinity of this species to A. minutum; however, the relatively high level of sequence conservation in dinoflagellate rDNA sequences made these particular markers inadequate for distinguishing one species from the other. Sediment-trap data suggest that A. saanichi has a preference for cooler temperatures and lowered salinities.
Type:
Journal article
Language:
English
Published in:
Marine Micropaleontology, 2012, Vol 96–97, p. 48-62
Main Research Area:
Science/technology
Publication Status:
Published
Review type:
Peer Review
Submission year:
2012
Scientific Level:
Scientific
ID:
232113341

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