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Issue: Vol. 778 No. 1: 6 Oct. 2026
Type: Article
Published: 2026-10-06
DOI: 10.11646/phytotaxa.778.1.3
Page range: 39-51
Abstract views: 42
PDF downloaded: 2

Thalassionema frauenfeldii f. pontica f. nov. (Bacillariophyta) from the Black Sea (Russia)

Komarov Botanical Institute RAS; BIN RAS; 2 Professor Popov str.; St. Petersburg; 197022; Russia
Vyazemsky Karadag Scientific Station—Nature Reserve of RAS—Branch of Kovalevsky Institute of Biology of the Southern Seas RAS; KSS RAS; 24 Nauki str.; Feodosia; Kurortnoye; Crimea; Russia
A.O. Kovalevsky Institute of Biology of the Southern Seas RAS; IBSS RAS; 2 Nakhimov Ave.; Sevastopol; Crimea; 299011; Russia
Algae Thalassionema frauenfeldii diatoms morphology Black Sea Russia

Abstract

The genus Thalassionema Grunow ex Mereschk. 1902 belongs to the monotypic order Thalassionematales Round 1990 currently estimated as 20 taxa of specific and infraspecific rank. Research of the species diversity of this genus is known to be relevant due to the wide distribution of its representatives, their dominance in plankton and benthos, and the fact that they remain poorly studied. The study aimed to investigate the taxon Thalassionema frauenfeldii (Grunow) Temp. et Perag., apparently being of a cryptic species complex. Description of new form of T. frauenfeldii f. pontica f. nov., inhabiting the Black Sea coastal waters, was carried out based on structure of the interstria spinules along the valve edge and the direction of rimoportula slit. The establishment of taxonomic status of this infraspecific taxon within the framework of T. frauenfeldii in accordance with valve morphology data was discussed.

References

  1. Armbrust, E.V. (2009) The life of diatoms in the world’s oceans. Nature 459 (7244): 185–192 https://doi.org/10.1038/nature08057
  2. Caraus, I. (2017) Algae of Romania. A distributional checklist of actual algae. Version 2.4. Studii si Cercetari Biologie 7: 1–1002.
  3. Cleve, P.T. & Grunow, A. (1880) Beiträge zur Kenntniss der Arctischen Diatomeen. Kongliga Svenska-Vetenskaps Akademiens Handlingar 17 (2): 1–121.
  4. Cox, E.J. (2014) Diatom identification in the face of changing species concepts and evidence of phenotypic plasticity. Journal of Micropalaeontology 33: 111–120 https://doi.org/10.1144/jmpaleo2014-014
  5. Diatomovyi analiz. Kniga 3. Opredelitel’ iskopaemykh i sovremennykh diatomovykh vodoroslei. Poryadок Pennales [Diatom analysis. Book 3. Identification guide of fossil and modern diatoms. Order Pennales]. (1950) Leningrad, 399 pp. [in Russian].
  6. Gogorev, R.M., Chudaev, D.A., Stepanova, V.A. & Kulikovskiy, M.S. (2018) Russian and English terminological glossary on morphology of diatoms. Novosti sistematiki nizshikh rastenii 52 (2): 265–309 https://doi.org/10.31111/nsnr/2018.52.2.265
  7. Gololobova, M.A., Gogorev, R.M., Lyakh, A.M. & Dorofeyuk, N.I. (2022) The main valve shapes of diatoms: terminology. I. Valve shapes symmetrical to the apical axis and valve shapes with radial symmetry. Novosti sistematiki nizshikh rastenii 56 (1): 29–54 https://doi.org/10.31111/nsnr/2022.56.1.29
  8. Grunow, A. (1863) Über einige neue und ungenügend bekannte Arten und Gattungen von Diatomaceen. Verhandlungen der kaiserlich-königlichen zoologisch-botanischen Gesellschaft in Wien 13: 137–162.
  9. Guiry, M.D. & Guiry, G.M. (2026) AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. Available from: https://www.algaebase.org (accessed 15 March 2026)
  10. Hallegraeff, G.M. (1986) Taxonomy and morphology of the marine plankton diatoms Thalassionema and Thalassiothrix. Diatom Research 1: 57–80 https://doi.org/10.1080/0269249X.1986.9704958
  11. Hasle, G.R. (1999) Thalassionema synedriforme comb. nov. and Thalassiothrix spathulata sp. nov., two marine, planktonic diatoms from warm waters. Phycologia 38: 54–59 https://doi.org/10.2216/i0031-8884-38-1-54.1
  12. Hasle, G.R. (2001) The marine, planktonic diatom Family Thalassionemataceae: morphology, taxonomy and distribution. Diatom Research 16: 1–82 https://doi.org/10.1080/0269249X.2001.9705509
  13. Hasle, G.R. & de Mendiola, B.R.E. (1967) The fine structure of some Thalassionema and Thalassiothrix species. Phycologia 6: 107–125 https://doi.org/10.2216/i0031-8884-6-2-107.1
  14. Hasle, G.R. & Semina, H.J. (1987) The planktonic diatoms Thalassiothrix longissima and Thalassiothrix antarctica with comments on Thalassionema spp. and Synedra reinboldii. Diatom Research 2 (2): 175–192 https://doi.org/10.1080/0269249X.1987.9704996
  15. Hasle, G.R. & Syvertsen, E.E. (1996) Marine diatoms. In: Identifying marine phytoplankton. San Diego, pp. 5–385. https://doi.org/10.1016/B978-012693018-4/50004-5
  16. Hernández-Becerril, D.U., Esparza-Álvarez, M.A., Pérez-Mendoza, L.A., Becerril-Bobadilla, F.J.U. & Pérez-García, R. (2025) Diversity and morphology of marine planktonic species of the diatom family Thalassionemataceae from the Mexican Pacific. Phytotaxa 696 (1): 1–27 https://doi.org/10.11646/phytotaxa.696.1.1
  17. ImageJ (v1.4.3.67) (Image Processing and analysis in Java). (2010) Available from: https://imagej.net/ij/ (accessed 25 September 2025)
  18. Kaleli, A. & Akcaalan, R. (2021) Checklist of marine diatoms from Turkish coastal waters with updated nomenclature. Aquatic Research 4 (1): 88–115 https://doi.org/10.3153/AR21008
  19. Karsten, G. (1906) Das Phytoplankton des Atlantischen Oceans nach dem Material der Deutschen Tiefsee-Expedition 1898–1899. Wissenschaftliche ergebnisse der deutschen Tiefsee-Expedition auf dem Dampfer Valdivia 1898–1899, von Carl Chun 2 (2): 137–219.
  20. Karsten, G. (1907) Das Indische Phytoplankton nach dem Material der deutschen Tiefsee-Expedition 1898–1899. Wissenschaftliche Ergebnisse der Deutschen Tiefsee-Expedition auf dem Dampfer ‘Valdivia’ 1898–1899 II 2 (2): 221–548.
  21. Kolbe, R.W. (1955) Diatoms from equatorial Atlantic cores. In: Pettersson, H. (Ed.) Reports of the Swedish Deep-Sea Expedition 1947–1948, Sediment cores from the West Pacific. Kungliga Vetenskaps- och Vitterhets-Samhället i Göteborg 7 (3): 151–184.
  22. Koray, T. (2001) Türkiye denizleri fitoplankton türleri kontrol Listesi. Ege Journal of Fisheries and Aquatic Sciences 18 (1–2): 1–23.
  23. Kützing, F.T. (1844) Die Kieselschaligen Bacillarien oder Diatomeen. Nordhausen, 152 pp. https://doi.org/10.5962/bhl.title.64360
  24. Lobban, C.S. (2021) New species of benthic marine diatoms (Bacillariophyta) from the Western Pacific islands of Guam and Yap. Phytotaxa 508: 235–265 https://doi.org/10.11646/phytotaxa.508.3.1
  25. Maltsev, Y., Maltseva, S., Kociolek, J.P., Jahn, R. & Kulikovskiy, M. (2021) Biogeography of the cosmopolitan terrestrial diatom Hantzschia amphioxys sensu lato based on molecular and morphological data. Scientific Reports 11: 4266 https://doi.org/10.1038/s41598-021-82092-9
  26. Mereschkowsky, C. (1902) Liste des Diatomées de la Mer Noire. Scripta Botanica Horti Universitatis Petropolitanae 19: 51–88.
  27. Mills, F.W. (1935) An Index to the genera and species of the Diatomaceae and their synonyms. Part XXI. Wheldon & Wesley Limited, London, UK.
  28. Nevrova, E.L. (2022) Diversity and structure of benthic diatom taxocenes (Bacillariophyta) of the Black Sea. Sevastopol, 329 pp. https://doi.org/10.21072/978-5-6048081-0-8
  29. Pantocsek, J. (1903) Beiträge zur Kenntniss der fossilen Bacillarien Ungarns. Teil 1, Marine Bacillarien. Berlin, 76 pp.
  30. Park, J.S., Kim, H.J., Lee, K.-W., Ha, H.J. & Kim, Y.J. (2024) Diatom flora from times-series sediment trap in the Kuroshio extension region of the northwestern Pacific. Taxonomy 4: 507–547 https://doi.org/10.3390/taxonomy4030025
  31. Polyakova, S.L., Zheleznova, S.N., Gevorgiz, R.G. & Davidovich, N.A. (2023) Ecological and physiological characteristics and biotechnological potential of diatom algae Nitzschia amabilis H. Suzuki. Russian Journal of Plant Physiology 70 (7): 1–8 https://doi.org/10.1134/S1021443723700309
  32. Proschkina-Lavrenko, A.I. (1955) Diatomovyye vodorosli planktona Chernogo morya [Planktonic diatoms of the Black Sea]. Moscow-Leningrad, 222 pp. [in Russian].
  33. Romero, O. & Hensen, C. (2002) Oceanographic control of biogenic opal and diatoms in surface sediments of the Southwestern Atlantic. Marine Geology 186: 263–280 https://doi.org/10.1016/S0025-3227(02)00210-4
  34. Round, F.E., Crawford, R.M. & Mann, D.G. (1990) The diatoms. Biology and morphology of the genera. Cambridge, 747 pp.
  35. Sabir, J.S., Theriot, E.C., Lobban, C.S., Alhebshi, A.M., Al-Malki, A.L., Hajrahi, N.H., Khiyami, M.A., Obaid, A.Y., Jansen, R.K. & Asworth, M.A. (2018) Systematics of araphid diatoms with asymmetric rimoportulae or densely packed virgae, with particular attention to Hyalosynedra (Ulnariaceae, Bacillariophyta). Phytotaxa 347: 1–49 https://doi.org/10.11646/phytotaxa.347.1.1
  36. Sar, E.A. (1996) Flora diatomológica de Bahía San Antonio (Prov. de Río Negro, Argentina) Orden Pennales I. Revista del Museo de La Plata (n. s.) 14, Botánica (Argentina) 107: 399–432.
  37. Sar, E.A., Sunesen, I. & Fernandez, P.V. (2007) Marine diatoms from Buenos Aires coastal waters (Argentina). II. Thalassionemataceae and Rhaphoneidaceae. Revista Chilena de Historia Natural 80 (1): 63–79 https://doi.org/10.4067/S0716-078X2007000100006
  38. Schrader, H.-J. (1973) Cenozoic diatoms from the Northeast Pacific, Leg 18. Initial Reports of the Deep Sea Drilling Project 17: 673–797 https://doi.org/10.2973/dsdp.proc.18.117.1973
  39. Sha, L., Huang, Y. & Wang, L. (2008) Paleoenvironmental significance of Thalassionema nitzschioides and its varieties of core 17940 in the South China Sea during the latest Pleistocene. Journal of Meteorology and Environment 24 (5): 6–10.
  40. Sugie, K. & Suzuki, K. (2015) A new marine araphid diatom, Thalassionema kuroshioensis sp. nov., from temperate Japanese coastal waters. Diatom Research 30 (3): 237–245 https://doi.org/10.1080/0269249X.2015.1055339
  41. Tanimura, Y., Shimada, C. & Iwai, M. (2007) Modern distribution of Thalassionema species (Bacillariophyceae) in the Pacific Ocean. Bulletin of the National Museum of Nature and Science. Series C 33: 27–51.
  42. Tas, S. & Okus, E. (2006) Investigation of qualitatively phytoplankton in the Turkish coasts of Black Sea and a species list. Journal of Black Sea/Mediterranean Environment 12: 181–191.
  43. Taskin, E., Akbulut, A., Yıldız, A., Şahin, B., Şen, B., Uzunöz, C., Solak, C.N., Basdemir, D., Cevik, F., Sönmez, F., Açikgöz Erkaya, İ., Pabuccu, K., Alp, M.T., Öztürk, M., Albay, M., Çakır, M., Özbay, Ö., Can, Ö., Akçaalan, R., Atici, T., Koray, T., Baykal ÖZER, T., Karan, T., Aktan, Y. & Zengin, Z. (2019) Türkiye suyosunları listesi (Turkey algae list). Istanbul, 804 pp.
  44. Tempère, J. & Peragallo (1915) Diatomées du Monde Entier. Texte. Collection Tempère et Peragallo (2e Édition). Arcachon, Gironde, pp. 3–480. https://doi.org/10.5962/bhl.title.1026
  45. Tsoy, I.B. & Emelyanova, E.A. (2021) Atlas diatomovykh vodorosley Daginskogo gryazevogo vulkana (Vostochnyy Sakhalin) [Atlas of diatom algae from the Daginsky Mud Volcano (East Sakhalin)]. Vladivostok, 220 pp. [in Russian].
  46. Tsoy, I.B. & Obrezkova, M.S. (2017) Atlas diatomovykh vodorosley i silikoflagellat golotsenovykh osadkov morey Vostochnoy Arktiki Rossii [Atlas of diatom algae and silicoflagellates from Holocene sediments of the Russian East Arctic seas]. Vladivostok, 168 pp. [in Russian].
  47. Türkoglu, M. & Koray, T. (2002) Phytoplankton species’ succession and nutrients in the Southern Black Sea (Bay of Sinop). Turkish Journal of Botany 26: 235–252.
  48. Van Heurck, H. (1881) Synopsis des Diatomées de Belgique. Atlas. Pl. 31–77.
  49. Van Heurck, H. (1896) A treatise on the Diatomaceae. London, 558 pp.
  50. Villac, M.C., Kaczmarska, I. & Ehrman, J.M. (2016) Diatoms from ship ballast sediments (with consideration of a few additional species of special interest). Diatom Monographs 18: 557 pp.
  51. Yasakova, O.N. & Makarevich, P.R. (2023) Sovremennoye sostoyaniye fitoplanktona severo-vostochnoy chasti Chernogo morya [Current state of phytoplankton in the North-Eastern Black Sea]. Rostov-on-Don, 232 pp. [in Russian].
  52. Zaitsev, Yu.P. (2008) An introduction to the Black Sea Ecology. Smil Edition and Publishing Agency Ltd., Odessa, 228 pp.
  53. Zhang, M. & Chen, N. (2022) Comparative analysis of Thalassionema chloroplast genomes revealed hidden biodiversity. BMC Genomics 23: 327 https://doi.org/10.1186/s12864-022-08532-6

How to Cite

Gogorev, R.M., Polyakova, S.L. & Nevrova, E.L. (2026) Thalassionema frauenfeldii f. pontica f. nov. (Bacillariophyta) from the Black Sea (Russia). Phytotaxa 778 (1): 39–51. https://doi.org/10.11646/phytotaxa.778.1.3