WoRMS taxon details
Gambierdiscus jejuensis S.H.Jang & H.J.Jeong, 2018
1380751 (urn:lsid:marinespecies.org:taxname:1380751)
accepted
Species
marine
Jang, S. H.; Jeong, H. J.; Yoo, Y. D. (2018). Gambierdiscus jejuensis sp. nov., an epiphytic dinoflagellate from the waters of Jeju Island, Korea, effect of temperature on the growth, and its global distribution. <em>Harmful Algae.</em> 80: 149-157., available online at https://doi.org/10.1016/j.hal.2018.11.007 [details]
Type locality contained in Korean Peninsula
type locality contained in Korean Peninsula [details]
Description Cells are anteroposteriorly compressed. Cells have a smooth theca ornamentation. Cell depth is slightly smaller than cell...
Description Cells are anteroposteriorly compressed. Cells have a smooth theca ornamentation. Cell depth is slightly smaller than cell width. The ranges of cell length, width, and depth measured by LM are 46–66 μm, 71–93 μm, and 68–88 μm. The shape of the Po plate, centered or slightly displaced toward the ventral side, is elliptical with a fishhook-shaped slit. The 2' plate is the largest apical plate. Of the precingular plates, the 3'' plate is the largest, and the 1'' and 7'' plates are the smallest. Of the postcingular plates, the 2''' and 4''' plates are the largest, the 3''' plate intermediate, and the 1''' and 5''' plates are the smallest. The shape of 1p plate is mostly pentagonal and broad. Thecal plate formula is Po, 3', 7'', 6C, 6S?, 1p, 5''', 2''''. [details]
Guiry, M.D. & Guiry, G.M. (2024). AlgaeBase. World-wide electronic publication, National University of Ireland, Galway (taxonomic information republished from AlgaeBase with permission of M.D. Guiry). Gambierdiscus jejuensis S.H.Jang & H.J.Jeong, 2018. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=1380751 on 2024-04-16
Date
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original description
Jang, S. H.; Jeong, H. J.; Yoo, Y. D. (2018). Gambierdiscus jejuensis sp. nov., an epiphytic dinoflagellate from the waters of Jeju Island, Korea, effect of temperature on the growth, and its global distribution. <em>Harmful Algae.</em> 80: 149-157., available online at https://doi.org/10.1016/j.hal.2018.11.007 [details]
basis of record Guiry, M.D. & Guiry, G.M. (2023). AlgaeBase. <em>World-wide electronic publication, National University of Ireland, Galway.</em> searched on YYYY-MM-DD., available online at http://www.algaebase.org [details]
basis of record Guiry, M.D. & Guiry, G.M. (2023). AlgaeBase. <em>World-wide electronic publication, National University of Ireland, Galway.</em> searched on YYYY-MM-DD., available online at http://www.algaebase.org [details]
Present Present in aphia/obis/gbif/idigbio Inaccurate Introduced: alien Containing type locality
From regional or thematic species database
Description Cells are anteroposteriorly compressed. Cells have a smooth theca ornamentation. Cell depth is slightly smaller than cell width. The ranges of cell length, width, and depth measured by LM are 46–66 μm, 71–93 μm, and 68–88 μm. The shape of the Po plate, centered or slightly displaced toward the ventral side, is elliptical with a fishhook-shaped slit. The 2' plate is the largest apical plate. Of the precingular plates, the 3'' plate is the largest, and the 1'' and 7'' plates are the smallest. Of the postcingular plates, the 2''' and 4''' plates are the largest, the 3''' plate intermediate, and the 1''' and 5''' plates are the smallest. The shape of 1p plate is mostly pentagonal and broad. Thecal plate formula is Po, 3', 7'', 6C, 6S?, 1p, 5''', 2''''. [details]Harmful effect No information on toxicity so far. [details]
Identification The morphology of G. jejuensis differs from that of all described Gambierdiscus species and has a smooth theca ornamentation and a broad 1p plate, unlike G. balechii, G. belizeanus, G. cheloniae, G. lapillus, and G. scabrosus. These species have the reticulate-foveate ornamentation and a narrow 1p plate. They also differ from G. honu and G. pacificus that have a narrow 1p plate. G. jejuensis has cell depth, width, and length (mean=78, 85, and 56 μm, respectively) considerably larger than those of G. honu (51, 52, and 34 μm) and G. pacificus (59 μm, 54 μm, and 40 μm). In addition, G. jejuensis has a ratio of cell depth relative to cell width (mean=0.92) smaller than that of G. australes (1.16), G. carpenteri (1.09), G. excentricus (1.17), G. slivae (1.08), and G. toxicus (1.12). The nucleus of G. jejuensis is positioned in the central region, whereas the nucleus of G. caribaeus, G. carolinianus, and G. polynesiensis is positioned in the hypotheca. The nucleus position of only 2 Korean strains (n=20), however, was examined and thus that of other strains of G. jejuensis should be additionally examined to use this feature as a key for differentiating G. jejuensis from the other Gambierdiscus species. [details]
