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opencc-by-4.0Apr 2014View details →

Fig. 2 in Myxozoa in high Arctic: Survey on the central part of Svalbard archipelago

Fig. 2. Ultrathin section of almost mature spore of Schulmania aenigmatosa with lateral wings (LW) typical for the genus. CC capsulogenic cell, CC with polar capsule (left).

opencc-by-4.0Apr 2014View details →

Fig. 11 in Myxozoa in high Arctic: Survey on the central part of Svalbard archipelago

Fig. 11. Maximum likelihood tree (-ln = 18360.2248) based on 52 SSU rDNA myxosporean sequences available in GenBank and newly obtained data (in bold blue colour) belonging to the marine urinary clade. Numbers at the nodes represent the bootstrap values and the Bayesian posterior probability (ML/MP/BI) gaining more than 50% support (ML and MP) and 0.5 posterior probability (BI), respectively. Bold branches lead to a node with a bootstrap support of À95 and a Bayesian posterior probability of À0.97. Scale bar is given under the tree. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)

opencc-by-4.0Jun 2023View details →

Proglacial sediments in High Arctic glacier foreland: A case study of Werenskioldbreen, Svalbard

The glacier environment exhibit a high sensitivity to the global climate change leading to progressive deglaciation and the exposure of previously ice-covered land. The newly exposed <a name="_Hlk165289159"></a>terrain provides a valuable opportunity to observe rapid ecosystem changes, such as the accumulation of glacial sediments, the development of soil-forming and progressive alterations in water and biogeochemical cycles. While developing hydrological and hydrogeological models for the Werenskioldbreen proglacial expanding zone, we encountered a significant problem due to insufficient data for parameterizing glacial sediments, constituting the environment for water flow and storage. These data provide detail insight into the physicochemical parameters of glacial sediments and classify them in terms of grain size distribution, hydraulic conductivity, pH, and Corg, Nt and Pt contents. Samples for macroscopic examination and further laboratory analysis were collected from each different proglacial sediment in the profile. Macroscopic characterisation in the field was carried out in accordance with standards PN-EN ISO 14688-1 and PN-EN ISO 14688-2 introduced into the catalogue of Polish Standards in 2006 and are cited in PN-EN 1997-2:2009, known as Eurocode 7: Geotechnical engineering design - Part 2: Identification and investigation of soils. More information on the data acquisition methodology is included in the publication (same title) or can be obtained through the contact provided.

Fig. 10 in Osteology and phylogeny of Late Jurassic ichthyosaurs from the Slottsmøya Member Lagerstätte (Spitsbergen, Svalbard)

Fig. 10. Basicranium of ophthalmosaurid ichthyosaur Undorosaurus? kristiansenae Druckenmiller, Hurum, Knutsen, and Nakrem, 2012 (PMO 214.578, holotype) from Spitsbergen, Svalbard, Slottsmøya Member Lagerstätte, Tithonian. A. Basioccipital posterior (A1), right lateral (A2), ventral (A3) and dorsal (A4) views. B. Basisphenoid in ventral (B1), dorsal (B2), and anterior (B3) views. C. Left stapes in posterior (C1), medial (C2), anterior (C3), and dorsal (C4) views.

Fig. 3 in Osteology and phylogeny of Late Jurassic ichthyosaurs from the Slottsmøya Member Lagerstätte (Spitsbergen, Svalbard)

Fig. 3. Explanatory drawing of the skeleton of ophthalmosaurid ichthyosaur Keilhauia sp. (PMO 222.667) from Spitsbergen, Svalbard, Slottsmøya Member Lagerstätte, Tithonian. Modified and corrected from Delsett et al. (2016).

Fig. 6 in Osteology and phylogeny of Late Jurassic ichthyosaurs from the Slottsmøya Member Lagerstätte (Spitsbergen, Svalbard)

Fig. 6. Cranial elements of ophthalmosaurid ichthyosaur Keilhauia sp. (PMO 222.667) from Spitsbergen, Svalbard, Slottsmøya Member Lagerstätte, Tithonian. A. Lower jaw fragment in dorsal view (anterior to the left). A3, detail of inner structures with arrow showing position of ventral-pointing tooth from the upper jaw, anterior to the right, in dorsal view. B. Right articular in medial (B1) and lateral (B2) views. C. Hyoid in lateral or medial view (anterior to the left). D–F. Teeth. Photographs (A1, B–F), μCT scan images (A2, A3).

Fig. 1. A in Osteology and phylogeny of Late Jurassic ichthyosaurs from the Slottsmøya Member Lagerstätte (Spitsbergen, Svalbard)

Fig. 1. A. Map of Svalbard archipelago and the main island Spitsbergen with excavation area marked with an asterisk. B. Geological map of the excavation sites for the SML ophthalmosaurid specimens described and discussed in this paper (red dots); see Fig. 2. Adapted from Hurum et al. (2012).

Fig. 2 in Osteology and phylogeny of Late Jurassic ichthyosaurs from the Slottsmøya Member Lagerstätte (Spitsbergen, Svalbard)

Fig. 2. Composite section of the Slottsmøya Member Lagerstätte with the ophthalmosaurids described and discussed in the text. Specimens described in this paper marked with an asterisk. Modified from Delsett et al. (2017). A bed with a high abundance of echinoderm fossils is set as marker bed (0 m) in the section (Hurum et al. 2012; Rousseau and Nakrem 2012).

Fig. 9 in Osteology and phylogeny of Late Jurassic ichthyosaurs from the Slottsmøya Member Lagerstätte (Spitsbergen, Svalbard)

Fig. 9. Elements of Ophthalmosauridae indet. (PMO 224.252) from Spitsbergen, Svalbard, Slottsmøya Member Lagerstätte, Tithonian. A. Left quadrate in posterior view. B. Hyoid in anterior or posterior view. C. Rib in anterior or posterior view.

Fig. 4 in Osteology and phylogeny of Late Jurassic ichthyosaurs from the Slottsmøya Member Lagerstätte (Spitsbergen, Svalbard)

Fig. 4. Rostrum fragment of ophthalmosaurid ichthyosaur Keilhauia sp. PMO 222.667) from Spitsbergen, Svalbard, Slottsmøya Member Lagerstätte, Tithonian. Premaxillae, nasals, and vomer in dorsal (A1) and lateral A2) views. Anterior to the right.

Fig. 8 in Osteology and phylogeny of Late Jurassic ichthyosaurs from the Slottsmøya Member Lagerstätte (Spitsbergen, Svalbard)

Fig. 8. Skull of Ophthalmosauridae indet. (PMO 224.252) from Spitsbergen, Svalbard, Slottsmøya Member Lagerstätte, Tithonian; in dorsal (A1, A3) and ventral (A2, A4) views. Photographs (A1, A2) and interpretative drawings (A3, A4). L, left; R, right; paf, parietal foramen; suf, supratemporal fenestra.

opencc-by-4.0Dec 2013View details →

Fig. 1 in Wasp mimicry among Palaeocene reduviid bug from Svalbard

Fig. 1. Representative assassin bugs of the subfamily Saicinae (Reduviidae), Recent (A–D) and fossil (E) specimens. A. Tagalis inornata Stål, 1860. B. Polytoxus wahlbergi Stål, 1855. C. Saica tibialis Stål, 1862. D. Uncoated ESEM on the wings of Tagalis sp. (det. Christiane Weirauch). E. Hymenopterites Heer, 1870, coll. No. Ar 46. Holotype specimen with orginal labeling from Alfred Erik Nordenskiöld (E1). Specimen photographed un− der normal light conditions (E2) and under alcohol (E3). F. Line drawing of forewing. Scale bars 1 mm.

opencc-by-4.0Oct 2012View details →

Fig. 1 in The Upper Triassic flora of Svalbard

Fig. 1. Map of Svalbard with exposure of Carnian strata and NRM and VSEGEI localities; after the geological maps of Svalbard 1:100 000 provided by the Norwegian Polar Institute, Tromsø. Locality names are depicted in Table 1.

opencc-by-4.0Oct 2012View details →

Fig. 10 in The Upper Triassic flora of Svalbard

Fig. 10. World map of the Late Triassic (Carnian, 220 Mya) showing the position of key floras comprising bennettitaleans (grey diamonds) and supposed North-Atlantic floral sub-province (striped area). Base map: Ron Blakey, CP Geosystems, Inc., Flagstaff, AZ, USA.

Fig. 4 in Lower Permian bryozoans from southern and central Spitsbergen, Svalbard

Fig. 4. Lithological log and distribution of bryozoans through the Hyrnefjellet section. Legend as in Fig. 3.

Fig. 10 in Lower Permian bryozoans from southern and central Spitsbergen, Svalbard

Fig. 10. External views of selected bryozoan growth forms. A, C. Ascopora birkenmajeri sp. nov. A. Cross−sections of zoaria. Hyrnefjellet, sample ZPAL Br. 12/H7, PMO 170.903. C. Large zoarium. Holotype. Gipsvika, PMO 170.913. B. Ascopora sp. Zoarium surface. Hyrnefjellet, sample ZPAL Br. 12/H24, PMO 170.907. D. Rectifenestella nikiforovae (Shul'ga−Nesterenko, 1936). Gipsvika, PMO 170.915B. E–G. Ascopora sterlitamakensis Nikiforova, 1939. E. Oblique cut abnormal thick zoarium displaying regenerated growth (bottom). Hyrnefjellet, sample Br.12/G15, PMO 170.891. F. Oblique longitudinal section of regular thin zoarium displaying zooecial apertures (bottom). Hyrnefjellet, sample ZPAL Br. 12/H4, PMO 170.893. G. Longitudinal section near point of bifurcations displaying thick endozone (dark) and slightly silicified exozone (white). Gipsvika, PMO 170.911 (original for thin sections 170.911D and E). H. Coscinium cyclops Keyserling, 1846. Zoarium surface showing large fenestrules and numerous rows of apertures on branches. Gipsvika, PMO 170.919. Scale bars 5 mm.

Fig. 9 in Lower Permian bryozoans from southern and central Spitsbergen, Svalbard

Fig. 9. Lower Permian bryozoans from Gipsvika, Svalbard. Toulapora svalbardense (Nakrem, 1994a). A. Tangential section. Rejmyrefjellet, Artinskian, PMO A42600/1 (holotype). B. Tangential section. Rejmyrefjellet, Artinskian, PMO A42600/1 (holotype). C. Tangential section. Rejmyrefjellet, Artinskian, PMO A42600/1 (holotype). D. Longitudinal section. Cylindrical colony with now decayed ephemeral encrustation substrate ("hollow tubes"). Rejmyrefjellet, Artinskian, PMO A42600/4 (paratype). E. Longitudinal section. Rejmyrefjellet, Artinskian, PMO A42600/2 (paratype). F. Transverse section of cylindrical colony. Gipsvika, Sakmarian, PMO 170.929. G. Tangential section. Gipsvika, Sakmarian, PMO 170.929. H. Tangential section. Gipsvika, Sakmarian, PMO 170.929. I. Longitudinal section. Gipsvika, Sakmarian, PMO 170.941. Scale bars 0.4 mm.

Fig. 7. Lower Permian bryozoans from Hyrnefjellet, Svalbard. A–F in Lower Permian bryozoans from southern and central Spitsbergen, Svalbard

Fig. 7. Lower Permian bryozoans from Hyrnefjellet, Svalbard. A–F. Ascopora birkenmajeri sp. nov. A. Transverse section showing completely regenerated growth (cylindrical self−encrustation). Sample H7, PMO 170.903A. B. Longitudinal section showing central canal with parallel zooecia. Regenerated growth. PMO 170.903H. C. Regenerated growth. Sample H7, PMO 170.903E. D. Sample H7, PMO 170.903C. Colony growth basis (D1) and colony growth basis displaying unusual thich endozonal walls (D2). E. Sample H7, PMO 170.903D. Regenerated growth. F. Tangential section showing zooecial apertures, large acanthostyles between apertures, and a row of small stylets bordering each aperture. Sample Br.12/G15, PMO 170.899. G, H. Timanodictya sp. G. Oblique tangential section. Sample H10, ZPAL thin section. H. Tangential section showing apertures, and scattered small (1) and large (2) tubercles on colony surface between apertures. Sample H10, ZPAL thin section. Scale bars 0.4 mm.

opencc-by-sa-4.0May 2022View details →

Inventory of glacial lakes in Svalbard 1936-2020

Table consist a information about changes of the glacial lakes in the Svalbard Archipelago since the termination of the Little Ice Age. Shapefiles are additional part of this table and shows a spatial distribution of included lakes. To search a specific lake you have to choose ID. This study is a contribution to the National Science Centre project ‘GLAVE’ (Award No. UMO-2020/38/E/ST10/00042)