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Obituary

Tribute to Professor Grethe Rytter Hasle

Bente Edvardsen
,
Nina Lundholm
&
Linda K. Medlin
Pages 117-122 | Published online: 24 May 2018

  • Scientific publications by Grethe Hasle
  • Barnes H. & Hasle G.R. 1957. A statistical examination of the distribution of some species of dinoflagellates in the polluted inner Oslofjord. Nytt Magasin for Botanik 5: 113–124.
  • Braarud T. Føyn B. & Hasle G.R. 1958. The marine and fresh-water phytoplankton of the Dramsfjord and the adjacent part of the Oslofjord, March–December 1951. Hvalråd. Skr 43: 3–102.
  • Evensen D.L. & Hasle G.R. 1975. The morphology of some Chaetoceros species as seen in the electron microscope. Nova Hedwigia, Beih 53: 153–174.
  • Fryxell G.A. & Hasle G.R. 1971. Corethron criophilum Castracane: its distribution and structure. In: Biology of the Antarctic Seas. 4 (Ed. by G.A. Llano & I.E. Wallen), pp. 335–346. Antarctic Res. Ser. 17.
  • Fryxell G.A. & Hasle G.R. 1972. Thalassiosira eccentrica (Ehrenb.) Cleve, T. symmetrica sp. nov., and some related centric diatoms. Journal of Phycology 8: 297–317.
  • Fryxell G.A. & Hasle G.R. 1974. Coscinodiscineae: some consistent patterns in diatom morphology. Nova Hedwigia, Beih 45: 69–96.
  • Fryxell G.A. & Hasle G.R. 1977. The genus Thalassiosira: some species with a modified ring of central strutted processes. Nova Hedwigia, Beih 54: 67–98.
  • Fryxell G.A. & Hasle G.R. 1979a. The genus Thalassiosira: species with internal extensions of the strutted processes. Phycologia 18: 378–393. doi: 10.2216/i0031-8884-18-4-378.1
  • Fryxell G.A. & Hasle G.R. 1979b. The genus Thalassiosira: T. trifulta sp. nova and other species with tricolumnar supports on strutted processes. Nova Hedwigia, Beih 64: 13–40.
  • Fryxell G.A. & Hasle G.R. 1980. The marine diatom Thalassiosira oestrupii: structure, taxonomy and distribution. American Journal of Botany 67: 804–814. doi: 10.1002/j.1537-2197.1980.tb07709.x
  • Fryxell G.A. & Hasle G.R. 1983. The Antarctic diatoms Thalassiosira dichotomica (Kozlova) comb. nov. and T. ambiqua Kozlova. Polar Biology 2: 53–62. doi: 10.1007/BF00258286
  • Fryxell G.A. & Hasle G.R. 2003. Taxonomy of harmful diatoms. In: Manual on harmful marine microalgae. IOC manuals and guides, UNESCO (Ed. by G.M. Hallegraeff, D.M. Anderson & A.D. Cembella), pp. 465–509. UNESO, Paris.
  • Fryxell G.A., Hasle G.R. & Carty S.V. 1986. Thalassiosira tumida (Janisch) Hasle: Observations from field and clonal cultures. In: Proc. 8th Int. Diatom Symp. (Ed. by M. Ricard) 1984, pp. 11–21.
  • Gaarder K.R. & Hasle G.R. 1962. On the assumed symbiosis between diatoms and coccolithophorids in Brenneckella. Nytt Magasin for Botanik 9: 145–149.
  • Gaarder K.R. & Hasle G.R. 1971. Coccolithophorids of the Gulf of Mexico. Bulletin of Marine Science of the Gulf and Caribbean 21: 519–544.
  • Gaarder K.R., Fryxell G.A. & Hasle G.R. 1976. Potamodiscus kalbei Gerloff: an organism with siliceous scales. Arch. Protistenk 118: 346–351.
  • Hasle G.R. 1950. Phototactic vertical migration in marine dinoflagellates. Oikos 2: 162–175. doi: 10.2307/3564790
  • Hasle G.R. 1954a. More on phototactic diurnal migration in marine dinoflagellates. Nytt Magasin for Botanik 2: 139–147.
  • Hasle G.R. 1954b. The reliability of single observations in phytoplankton surveys. Nytt Magasin for Botanik 2: 121–137.
  • Hasle G.R. 1956. Phytoplankton and hydrography of the Pacific part of the Antarctic Ocean. Nature 177: 616–617. doi: 10.1038/177616a0
  • Hasle G.R. 1959. A quantitative study of phytoplankton from the equatorial Pacific. Deep-Sea Research 6: 38–59. doi: 10.1016/0146-6313(59)90055-3
  • Hasle G.R. 1960. Phytoplankton and ciliate species from the tropical Pacific. Skr. Norske Vidensk Akad. I. Mat. Nat. Kl. 2: 1–50.
  • Hasle G.R. 1960. Plankton coccolithophorids from the subantartic and equatorial Pacific. Nytt Magasin for Botanik 8: 77–88.
  • Hasle G.R. 1962a. The morphology of Thalassiosira fluviatilis from the polluted inner Oslofjord. Nytt Magasin for Botanik 9: 151–154.
  • Hasle G.R. 1962b. Three Cyclotella species from marine localities studied in the light and electron microscopes. Nova Hedwigia 4: 299–307.
  • Hasle G.R. 1964. Nitzschia and Fragilariopsis species studied in the light and electron microscopes. I. Some marine species of the group Nitzschiella and Lanceolatae. Skr. norske Vidensk Akad. I. Mat. Nat. Kl. N.S. 16: 1–48.
  • Hasle G.R. 1965a. Nitzschia and Fragilariopsis species studied in the light and electron microscopes. II. The group Pseudonitzschia. Skr. norske Vidensk Akad. I. Mat. Nat. Kl. N.S. 18: 1–45.
  • Hasle G.R. 1965b. Nitzschia and Fragilariopsis species studied in the light and electron microscopes. III. The genus Fragilariopsis. Skr. norske Vidensk Akad. I. Mat. Nat. Kl. N.S. 21: 1–49.
  • Hasle G.R. 1968a. Distribution of marine diatoms in the southern oceans. In: Primary productivity and benthic marine algae of the Antarctic and Subantarctic (Ed. by V.C. Bushnell). Am Geogr Soc, New York (Antarctic map folio series), Folio 10, pp. 6–8.
  • Hasle G.R. 1968b. Navicula endophytica sp. nov., a pennate diatom with an unusual mode of existence. British Phycological Bulletin 3: 475–480. doi: 10.1080/00071616800650071
  • Hasle G.R. 1968c. Observations on the marine diatom Fragilariopsis kerguelensis (O'Meara) Hust. in the scanning electron microscope. Nytt Magasin for Botanik 15: 205–208.
  • Hasle G.R. 1968d. The valve processes of the centric diatom genus Thalassiosira. Nytt Magasin for Botanik 15: 193–201.
  • Hasle G.R. 1969. An analysis of the phytoplankton of the Pacific Southern Ocean: abundance, composition and distribution during the ‘Brategg’ expedition, 1947–1948. Hvalråd. Skr 52: 1–168.
  • Hasle G.R. 1971. Nitzschia pungiformis (Bacillariophyceae), a new species of the Nitzschia seriata group. Norwegian Journal of Botany 18: 139–144.
  • Hasle G.R. 1972a. Fragilariopsis Hustedt as a section of the genus Nitzschia Hassall. Nova Hedwigia, Beih. 39: 111–119.
  • Hasle G.R. 1972b. Thalassiosira subtilis (Bacillariophyceae) and two allied species. Norwegian Journal of Botany 19: 111–137.
  • Hasle G.R. 1972c. The distribution of Nitzschia seriata Cleve and allied species. Nova Hedwigia, Beih 39: 171–190.
  • Hasle G.R. 1972d. The inclusion of Coscinosira Gran (Bacillariophyceae) in Thalassiosira Cleve. Taxon 21: 543–544. doi: 10.2307/1219143
  • Hasle G.R. 1972e. Two types of valve processes in centric diatoms. Nova Hedwigia, Beih 39: 55–78.
  • Hasle G.R. 1973a. Morphology and taxonomy of Skeletonema costatum (Bacillariophyceae). Norwegian Journal of Botany 20: 109–137.
  • Hasle G.R. 1973b. Rapheløse pennate diatomeer i scanning elektronmikroskop. University of Lund, Department of Quaternary Geology 3: 46–47. (Diatomésymposium Lund 1973).
  • Hasle G.R. 1973c. Some marine plankton genera of the diatom family Thalassiosiraceae. Nova Hedwigia, Beih 45: 1–49.
  • Hasle G.R. 1973d. Thalassiosiraceae, a new diatom family. Norwegian Journal of Botany 20: 67–69.
  • Hasle G.R. 1973e. The ‘mucilage pore’ of pennate diatoms. Nova Hedwigia, Beih 45: 167–186.
  • Hasle G.R. 1974. Validation of the names of some marine planktonic species of Nitzschia (Bacillariophyceae). Taxon 23: 425–428. doi: 10.2307/1218752
  • Hasle G.R. 1975. Some living marine species of the diatom family Rhizosoleniaceae. Nova Hedwigia, Beih 53: 99-140.
  • Hasle G.R. 1976a. Examination of diatom type material: Nitzschia delicatissima Cleve, Thalassiosira minuscula Krasske, and Cyclotella nana Hustedt. British Phycological Journal 11: 101–110. doi: 10.1080/00071617600650141
  • Hasle G.R. 1976b. The biogeography of some marine planktonic diatoms. Deep-Sea Research 23: 319–338.
  • Hasle G.R. 1977a. Distributional features of some marine planktonic diatoms. Summary in Proc. SCOR/SCAR Polar Oceans Conf., Montreal, May 1974: 549–552.
  • Hasle G.R. 1977b. Morphology and taxonomy of Actinocyclus normanii f. subsalsa (Bacillariophyceae). Phycologia 16: 321–328. doi: 10.2216/i0031-8884-16-3-321.1
  • Hasle G.R. 1977c. The use of electron microscopy in morphological and taxonomical diatom studies. In: The biology of diatoms (Ed. by D. Werner), Botanical Monographs, Vol. 13. pp. 18–23. Oxford.
  • Hasle G.R. 1978a. Diatoms. In: Phytoplankton Methods. UNESCO Monographs on Oceanographic Methodology (Ed. by A. Sournia), No. 6: pp. 136–142.
  • Hasle G.R. 1978b. General recommendations. In: Phytoplankton Methods. UNESCO Monographs on Oceanographic Methodology (Ed. by A. Sournia), No. 6: pp. 125–128.
  • Hasle G.R. 1978c. Some freshwater and brackish water species of the diatom genus Thalassiosira Cleve. Phycologia 17: 263–292. doi: 10.2216/i0031-8884-17-3-263.1
  • Hasle G.R. 1978d. Some Thalassiosira species with one central process (Bacillariophyceae). Norwegian Journal of Botany 25: 77–110.
  • Hasle G.R. 1978e. The inverted microscope method. In: Phytoplankton Methods. UNESCO Monographs on Oceanographic Methodology (Ed. by A. Sournia), No. 6, pp. 88–96.
  • Hasle G.R. 1978e. Using the inverted microscope. In: Phytoplankton Methods. UNESCO Monographs on Oceanographic Methodology (Ed. by A. Sournia), No. 6: pp. 191–196.
  • Hasle G.R. 1979. Thalassiosira decipiens (Grun.) Jørg. (Bacillariophyceae). Bacillaria 2: 85–108.
  • Hasle G.R. 1980. Examination of Thalassiosira type material: T. minima and T. delicatula (Bacillariophyceae). Norwegian Journal of Botany 27: 167–173.
  • Hasle G.R. 1983a. Proposal to conserve the generic name Cerataulina H. Perag. ex. Schütt over Syringidium Ehrenb. Taxon 32: 474–475. doi: 10.2307/1221519
  • Hasle G.R. 1983b. Thalassiosira punctigera (Castr.) comb. nov., a widely distributed marine planktonic diatom. Norwegian Journal of Botany 30: 593–608. doi: 10.1111/j.1756-1051.1983.tb01471.x
  • Hasle G.R. 1983c. The marine, planktonic diatoms Thalassiosira oceanica sp. nov. and T. partheneia. Journal of Phycology 19: 220–229. doi: 10.1111/j.0022-3646.1983.00220.x
  • Hasle G.R. 1984. The current status of the diatom genus Coscinodiscus Ehrenberg 1838. Til Botanisk institutts rapportserie. Universitetet i Bergen. Foredrag ved Nordisk diatomologmøte i Bergen, May 1983. Bot. Mus. Rapp 33: 27–32.
  • Hasle G.R. 1985. The fossil diatom Thalassiosira oranica, n. sp. Micropaleontology 31: 280–284. doi: 10.2307/1485546
  • Hasle G.R. 1986. Problems in open-ocean phytoplankton biogeography. In: Pelagic biogeography. Proc. ICoPB 1985. Unesco Tech. Papers in Marine Science 49: 118–125.
  • Hasle G.R. 1990a. Kiselalger i Oslofjorden og Skagerrak. Arter nye for området: Immigranter eller oversett tidligere? Blyttia 48: 33–38.
  • Hasle G.R. 1990b. The planktonic diatom Thalassiosira mediterranea (synonym Thalassiosira stellaris). Diatom Research 5: 415–418. doi: 10.1080/0269249X.1990.9705132
  • Hasle G.R. 1993. Nomenclatural notes on marine planktonic diatoms. The family Bacillariaceae. Nova Hedwigia, Beih 106: 315–321.
  • Hasle G.R. 1994. Pseudo-nitzschia as a genus distinct from Nitzschia (Bacillariophyceae). Journal of Phycology 30: 1036–1039. doi: 10.1111/j.0022-3646.1994.01036.x
  • Hasle G.R. 1995a. Nomenclatural notes: Palmerina nom. nov.: Pseudo-nitzschia turgiduloides sp. nov. Diatom Research 10: 357–358. doi: 10.1080/0269249X.1995.9705356
  • Hasle G.R. 1995b. Pseudo-nitzschia pungens and P. multiseries (Bacillariophyceae): nomenclatural history, morphology, and distribution. Journal of Phycology 31: 428–435. doi: 10.1111/j.0022-3646.1995.00428.x
  • Hasle G.R. 1999. Thalassionema synedriforme comb. nov. and Thalassiothrix spathulata sp. nov., two marine, planktonic diatoms from warm waters. Phycologia 38: 54–59. doi: 10.2216/i0031-8884-38-1-54.1
  • Hasle G.R. 2001. The marine, planktonic diatom family Thalassionemataceae: Morphology, taxonomy and distribution. Diatom Research 16: 1–82. doi: 10.1080/0269249X.2001.9705509
  • Hasle G.R. 2002. Are most of the domoic acid producing species of the diatom genus Pseudo-nitzschia cosmopolites? Harmful Algae 1: 137–146. doi: 10.1016/S1568-9883(02)00014-8
  • Hasle G.R. & Booth B.C. 1984. Nitzschia cylindroformis sp. nov. a common and abundant nanoplankton diatom of the eastern subarctic Pacific. Journal of Plankton Research 6: 493–503. doi: 10.1093/plankt/6.3.493
  • Hasle G.R. & de Mendiola B.R.E. 1967. The fine structure of some Thalassionema and Thalassiothrix species. Phycologia 6: 107–125. doi: 10.2216/i0031-8884-6-2-107.1
  • Hasle G.R. & Evensen D.L. 1975. Brackish-water and fresh-water species of the diatom genus Skeletonema Grev. I. Skeletonema subsalsum (A. Cleve) Bethge. Phycologia 14: 283–297. doi: 10.2216/i0031-8884-14-4-283.1
  • Hasle G.R. & Evensen D.L. 1976. Brackish water and freshwater species of the diatom genus Skeletonema Grev. II. Skeletonema potamos comb. nov. Journal of Phycology 12: 73–82.
  • Hasle G.R. & Fryxell G.A. 1970. Diatoms: cleaning and mounting for light and electron microscopy. Transactions of the American Microscopical Society 89: 469–474. doi: 10.2307/3224555
  • Hasle G.R. & Fryxell G.A. 1977a. Thalassiosira conferta and T. binata, two new diatom species. Norwegian Journal of Botany 24: 239–248.
  • Hasle G.R. & Fryxell G.A. 1977b. The genus Thalassiosira: some species with a linear areola array. Nova Hedwigia, Beih. 54: 15–66.
  • Hasle G.R. & Fryxell G.A. 1995. 17. Taxonomy of Diatoms. In: Manual on Harmful Marine Microalgae. IOC Manuals and Guides No. 33 (Ed. by G.M. Hallegraeff, D.M. Anderson & A.D. Cembella), UNESCO, pp. 339–364.
  • Hasle G.R. & Heimdal B.R. 1968. Morphology and distribution of the marine centric diatom Thalassiosira antarctica Comber. Journal of the Royal Microscopical Society 88: 357–369. doi: 10.1111/j.1365-2818.1968.tb00618.x
  • Hasle G.R. & Heimdal B.R. 1970. Some species of the centric diatom genus Thalassiosira studied in the light and electron microscopes. Diatomaceae II. Friedrich Hustedt Gedenkband. Nova Hedwigia, Beih. 31: 543–581.
  • Hasle G.R. & Lange C.B. 1989. Freshwater and brackish water Thalassiossira (Bacillariophyceae): taxa with tangentially undulated valves. Phycologia 28: 120–135. doi: 10.2216/i0031-8884-28-1-120.1
  • Hasle G.R. & Lange C.B. 1992. Morphology and distribution of Coscinodiscus species from the Oslofjord, Norway, and the Skagerrak, North Atlantic. Diatom Research. 71: 37–68. doi: 10.1080/0269249X.1992.9705196
  • Hasle G.R. & Lundholm N. 2005. Pseudo-nitzschia seriata f. obtusa (Bacillariophyceae) raised in rank based on morphological, phylogenetic and distributional data. Phycologia 44: 608–619. doi: 10.2216/0031-8884(2005)44[608:PSFOBR]2.0.CO;2
  • Hasle G.R. & Nordli E.E. 1951. Form variation in populations of Ceratium fusus and tripos from cultures and in the sea. Avh. Norske Vidensk Akad. I. Mat. Nat. Kl. 1945 4: 1–25.
  • Hasle G.R. & Semina H.J. 1987. The marine planktonic diatoms Thalassiothrix longissima and Thalassiothrix antarctica with comments on Thalassionema spp. and Synedra reinboldii. Diatom Research 2: 175–192. doi: 10.1080/0269249X.1987.9704996
  • Hasle G.R. & Sims P.A. 1985. The morphology of the diatom resting spore Syringidium bicorne and Syringidium simplex. British Phycological Journal 20: 219–225. doi: 10.1080/00071618500650231
  • Hasle G.R. & Sims P.A. 1986a. The diatom genus Coscinodiscus Ehrenb.: C. argus Ehrenb. and C. radiatus Ehrenb. Botanica Marina 29: 305–318. doi: 10.1515/botm.1986.29.4.305
  • Hasle G.R. & Sims P.A. 1986b. The diatom genera Stellarima and Symbolophora with comments on the genus Actinoptychus. British Phycological Journal 21: 97–114. doi: 10.1080/00071618600650101
  • Hasle G.R. & Smayda T.J. 1960. The annual phytoplankton cycle at Drøbak, Oslofjord. Nytt Magasin for Botanik 8: 53–75.
  • Hasle G.R. & Syvertsen E.E. 1980a. The diatom genus Cerataulina: morphology and taxonomy. Bacillaria 3: 79–113.
  • Hasle G.R. & Syvertsen E.E. 1980b. The marine diatoms Fragilaria striatula and F. hyalina. Stria 14: 110–118.
  • Hasle G.R. & Syvertsen E.E. 1984. Coscinodiscus pseudolineatus Pant. and C. praelineatus Jousé as synonyms of Thalassiosira leptopus (Grun.) Hasle & G. Fryx. In: Proc. 7th Int. Diatom Symp. (Ed. by D.G. Mann), 1982. pp. 145–155.
  • Hasle G.R. & Syvertsen E.E. 1985. Thalassiosiropsis, a new diatom genus from the fossil records. Micropaleontology 31: 82–91. doi: 10.2307/1485584
  • Hasle G.R. & Syvertsen E.E. 1990. Arctic diatoms in the Oslofjord and the Baltic Sea, a bio- and palaeographic problem? In: Proc. 10th Int. Diatom Symposium 1988 (Ed. by H. Simola), pp. 285–300.
  • Hasle G.R. & Syvertsen E.E. 1993. New nomenclatural combinations of marine planktonic diatoms. The families Thalassiosiraceae and Rhaphoneidaceae. Nova Hedwigia, Beih 106: 297–314.
  • Hasle G.R. & Syvertsen E.E. 1996. Marine diatoms. In: Identifying marine diatoms and dinoflagellates (Ed. by C.R. Tomas), pp. 5–385. Academic Press, San Diego, CA.
  • Hasle G.R. & Tomas C.R. 1996. Introduction and historical background. In: Identifying marine diatoms and dinoflagellates (Ed. by C.R. Tomas), pp. 1–4. Academic Press, San Diego, CA.
  • Hasle G.R. & von Quillfeldt C. H. 1996. Marine microalgae. In: A catalogue of Svalbard plants, fungi, algae and cyanobacteria (Ed. by A. Elvebakk & P. Presterud), pp. 373–379. Norsk Polarinstitutt Skrifter 198.
  • Hasle G.R. & Heimdal B.R. 1998. The net phytoplankton in Kongsfjorden, Svalbard, July 1988, with general remarks on species composition of arctic phytoplankton. Polar Research 17: 31–52. doi: 10.1111/j.1751-8369.1998.tb00257.x
  • Hasle G.R., Heimdal B.R. & Fryxell G.A. 1971. Morphologic variability in fasciculated diatoms as exemplified by Thalassiosira tumida (Janisch) Hasle, comb. nov. In: Biology of the Antarctic Seas. 4 (Ed. by G.A. Llano & I.E. Wallen), pp. 313–333. Antarctic Res. Ser. 17.
  • Hasle G.R., Sims P.A. & Syvertsen E.E. 1988. Two recent Stellarima species: S. microtrias and S. stellaris (Bacillariophyceae). Botanica Marina 31: 195–206. doi: 10.1515/botm.1988.31.3.195
  • Hasle G.R., Medlin L.K. & Syvertsen E.E. 1994. Synedropsis gen. nov., a sea ice associated araphid diatom genus. Phycologia 33: 248–270. doi: 10.2216/i0031-8884-33-4-248.1
  • Hasle G.R., Syvertsen E.E. & Lange C.B. 1996. A review of Pseudo-nitzschia, with special reference to the Skagerrak, North Atlantic, and adjacent waters. Helgoländer Meeresuntersuchungen 50: 131–175. doi: 10.1007/BF02367149
  • Hasle G.R., Syvertsen E.E. & von Quillfeldt C.H. 1997. Fossula arctica gen. nov., spec. nov., a marine Arctic araphid diatom. Diatom Research 11: 261–272. doi: 10.1080/0269249X.1996.9705383
  • Hasle G.R., von Stosch H.A. & Syvertsen E.E. 1983. Cymatosiraceae, a new diatom family. Bacillaria 6: 9–156.
  • Heimdal B.R., Hasle G.R. & Throndsen J. 1973. An annotated checklist of plankton algae from the Oslofjord, Norway (1951–1972). Norwegian Journal of Botany 20: 13–19.
  • Hostyeva V., Eikrem W., Edvardsen B. & Hasle G.R. 2012. Annual cycle of Pseudo-nitzschia species in Outer Oslofjorden, Norway. In: Proceedings of the 14th International Conference on Harmful Algae. International Society for the Study of Harmful Algae and Intergovernmental Oceanographic Commission of UNESCO, pp. 81–83.
  • Lange C.B., Hasle G.R. & Syvertsen E.E. 1992. Seasonal cycle of diatoms in the Skagerrak, North Atlantic, with emphasis on the period 1980–1990. Sarsia 77: 173–187. doi: 10.1080/00364827.1992.10413503
  • Lundholm N. & Hasle G.R. 2008. Are Fragilariopsis cylindrus and Fragilariopsis nana bipolar diatoms? Morphological and molecular analyses of two sympatric species. Nova Hedwigia (Suppl.) 133: 231–250.
  • Lundholm N. & Hasle G.R. 2010. Fragilariopsis (Bacillariophyceae) of the Northern Hemisphere – morphology, taxonomy, phylogeny and distribution, with a description of F. Pacifica sp. nov. Phycologia 49: 438–460. doi: 10.2216/09-97.1
  • Lundholm N., Hasle G.R., Fryxell G.A. & Hargraves P.E. 2002. Morphology, phylogeny and taxonomy of species within the Pseudo-nitzschia americana complex (Bacillariophyceae) with descriptions of two new species, Pseudo-nitzschia brasiliana and Pseudo-nitzschia linea. Phycologia 41: 480–497. doi: 10.2216/i0031-8884-41-5-480.1
  • Lundholm N., Moestrup Ø., Hasle G.R. & Hoef-Emden K. 2003. A study of the Pseudo-nitzschia pseudodelicatissima/cuspidata complex (Bacillariophyceae): what is P. pseudodelicatissima? Journal of Phycology 39: 797–813. doi: 10.1046/j.1529-8817.2003.02031.x
  • Medlin L.K. & Hasle G.R. 1990. Some Nitzschia and related species from fast ice samples in the Arctic and the Antarctic. Polar Biology 10: 451–479. doi: 10.1007/BF00233693
  • Ross R., Sims P.A. & Hasle G.R. 1977. Observations on some species of the Hemiauloideae. Nova Hedwigia, Beih. 54: 179–213.
  • Silva P.C. & Hasle G.R. 1993. (1061) Proposal to conserve Thalassiothrix Cleve & Grunow (Bacillariophyceae) with a conserved type. Taxon 42: 125–127. doi: 10.2307/1223320
  • Silva P.C. & Hasle G.R. 1994. (1087) Proposal to conserve Thalassiosiraceae against Lauderiaceae and Planktoniellaceae (algae). Taxon 43:287–289. doi: 10.2307/1222891
  • Silva P.C. & Hasle G.R. 1997. (1283) Proposal to conserve the name Synedra nitzschioides (Bacillariophyceae) with a conserved type to preserve the current application of the generic name Thalassionema. Taxon 46: 331–332. doi: 10.2307/1224104
  • Silva P.C. & Hasle G.R. 2005. (1653) Proposal to conserve the name Fragilariopsis against Pseudo-eunotia (Bacillariophyceae). Taxon 54: 177–178. doi: 10.2307/25065317
  • Silva P.C. & Hasle G.R. 2006. Taxonomic and Nomenclatural History of Fragilaria (Bacillariophyceae). Taxon 55: 200–202. doi: 10.2307/25065542
  • Sims P.A. & Hasle G.R. 1987. Two Cretaceous Stellarima species: S. steinyi and S. distincta; their morphology, palaeogeography and phylogeny. Diatom Research 2: 229–240. doi: 10.1080/0269249X.1987.9705001
  • Sims P.A. & Hasle G.R. 1990. The formal establishment of the family Stellarimaceae Nikolaev ex Sims & Hasle. Diatom Research 5: 207–208. doi: 10.1080/0269249X.1990.9705108
  • Stabell B. & Hasle G.R. 1996. IV. 8: diatoms in young sediments and net samples from the Kattegat. Pact 50 - IV 8: 443–449.
  • Syvertsen E.E. & Hasle G.R. 1982. The marine planktonic diatom Lauderia annulata Cleve, with particular reference to the processes. Bacillaria 5: 243–256.
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