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  • 1.
    Andersson, Markus
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Biology, Department of Ecology and Evolution. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Biology, Department of Ecology and Evolution, Plant Ecology. Växtekologi.
    Schubert, H
    Pedersén, M
    Snoeijs, Pauli
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Biology, Department of Ecology and Evolution. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Biology, Department of Ecology and Evolution, Plant Ecology. Växtekologi.
    Different patterns of carotenoid composition and photosynthesis acclimation in two tropical red algae2006In: Marine Biology, Vol. 14, p. 653-665Article in journal (Refereed)
  • 2. Choo, K
    et al.
    Snoeijs, Pauli
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Biology, Department of Evolutionary Biology. Department of Ecology and Evolution, Plant Ecology.
    Pedersén, M
    Oxidative stress tolerance in the filamentous green algae Cladophora glomerata and Enteromorpha ahlneriana2004In: Journal of Experimental Marine Biology and Ecology, Vol. 298, p. 111-123Article in journal (Refereed)
  • 3. Choo, KS
    et al.
    Nilsson, J
    Pedersén, M
    Snoeijs, Pauli
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Biology, Department of Ecology and Evolution. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Biology, Department of Ecology and Evolution, Plant Ecology.
    Photosynthesis, carbon uptake and antioxidant defence in two coexisting filamentous green algae under different stress conditions2005In: Marin Ecology Progress Series, Vol. 292, p. 127-138Article in journal (Refereed)
  • 4. Hopkins, CCE
    et al.
    Thulin, J
    Sutinen, JG
    Kononen, K
    Snoeijs, Pauli
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Biology, Department of Ecology and Evolution. Växtekologi.
    BONUS-169 Baltic Sea Science Plan and Implementation Strategy2006Report (Other scientific)
  • 5.
    Johansson, Johanna
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Biology, Department of Evolutionary Biology. Department of Ecology and Evolution, Plant Ecology. Växtekologi.
    Snoeijs, Pauli
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Biology, Department of Evolutionary Biology. Department of Ecology and Evolution, Plant Ecology. Växtekologi.
    Charasomer i svenska kransalger2002In: Svensk Botanisk Tidskrift, Vol. 96, p. 256-259Article in journal (Refereed)
  • 6. Klenell, Marcos
    et al.
    Snoeijs, Pauli
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Biology, Department of Ecology and Evolution. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Biology, Department of Ecology and Evolution, Plant Ecology.
    Pedersén, M
    Active carbon uptake in Laminaria digitata and Laminaria saccharina driven by a proton pump in the plasma membrane2004In: Hydrobiologia, Vol. 514, p. 41-53Article in journal (Refereed)
  • 7. Pedersén, M
    et al.
    Snoeijs, Pauli
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Biology, Department of Evolutionary Biology. Department of Ecology and Evolution, Plant Ecology. Växtekologi.
    Patterns of macroalgal diversity, community composition and long-term changes along the Swedish west coast2001In: Hydrobiologia, Vol. 459, p. 83-102Article in journal (Refereed)
  • 8. Ray, S
    et al.
    Pekkari, S
    Snoeijs, Pauli
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Biology, Department of Ecology and Evolution, Plant Ecology.
    Oospore dimensions and wall ornamentation patterns in Swedish charophytes2001In: Nordic Journal of Botany, Vol. 21, p. 207-224Article in journal (Refereed)
  • 9. Reid, P.C.
    et al.
    Johns, D.G.
    Edwards, M.
    Starr, M.
    Poulin, M.
    Snoeijs, Pauli
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Evolution, Ecological Botany.
    A biological consequence of reducing Arctic ice cover: Arrival of the Pacific diatom Neodenticula seminae in the North Atlantic for the first time in 800000 years2007In: Global Change Biology, ISSN 1354-1013, E-ISSN 1365-2486, Vol. 13, no 9, p. 1910-1921Article in journal (Refereed)
    Abstract [en]

    The Continuous Plankton Recorder survey has monitored plankton in the Northwest Atlantic at monthly intervals since 1962, with an interegnum between 1978 and 1990. In May 1999, large numbers of the Pacific diatom Neodenticula seminae were found in Continuous Plankton Recorder (CPR) samples in the Labrador Sea as the first record in the North Atlantic for more than 800 000 years. The event coincided with modifications in Arctic hydrography and circulation, increased flows of Pacific water into the Northwest Atlantic and in the previous year the exceptional occurrence of extensive ice-free water to the North of Canada. These observations indicate that N. seminae was carried in a pulse of Pacific water in 1998/early 1999 via the Canadian Arctic Archipelago and/or Fram Strait. The species occurred previously in the North Atlantic during the Pleistocene from∼1.2 to∼0.8 Ma as recorded in deep sea sediment cores. The reappearance of N. seminae in the North Atlantic is an indicator of the scale and speed of changes that are taking place in the Arctic and North Atlantic oceans as a consequence of regional climate warming. Because of the unusual nature of the event it appears that a threshold has been passed, marking a change in the circulation between the North Pacific and North Atlantic Oceans via the Arctic. Trans-Arctic migrations from the Pacific into the Atlantic are likely to occur increasingly over the next 100 years as Arctic ice continues to melt affecting Atlantic biodiversity and the biological pump with consequent feedbacks to the carbon cycle.

  • 10. Schubert, H.
    et al.
    Andersson, Markus
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Evolution, Ecological Botany.
    Snoeijs, Pauli
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Evolution, Ecological Botany.
    Relationship between photosynthesis and non-photochemical quenching of chlorophyll fluorescence in two red algae with different carotenoid compositions2006In: Marine Biology, ISSN 0025-3162, E-ISSN 1432-1793, Vol. 149, no 5, p. 1003-1013Article in journal (Refereed)
    Abstract [en]

    Algae are continuously exposed to short-term fluctuations in irradiance. We investigate how two red algae species regulate photosynthetic efficiency to cope with such changes and identify some strategies that differ from higher plants. Two red algae, Gracilaria domingensis and Kappaphycus alvarezii, with antheraxanthin and lutein as major xanthophylls, respectively, reacted to the onset of low light (below E-k) with a substantial decrease of NPQ. This is different from higher plants, but similar to previous observations in, e.g. cyanobacteria where it indicates an increase in the effective absorbance cross-section of Photosystem II (PSII) by state transition. Kinetic studies in continuous light revealed a high susceptibility of PSII to light stress ((1-q(P))/NPQ) in K. alvarezii immediately after the sudden onset of high light, followed by a decrease. This was caused by a slower onset of NPQ in K. alvarezii, followed by acclimation. In G. domingensis, susceptibility of PSII to light stress was stable with time, but absolute values of (1-q(P))/NPQ were higher than in K. alvarezii. These observations suggest that K. alvarezii may be better adapted to high light levels, but is less well prepared for large sudden changes in irradiation. In K. alvarezii, photosynthesis continued to increase with increasing irradiation when NPQ was saturated. As (1-q(P)) and NPQ were still balanced in this situation, most likely, processes other than photosynthetic oxygen release are responsible for the increasing net O-2 production observed.

  • 11.
    Snoeijs, P
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Biology, Department of Evolutionary Biology. Department of Ecology and Evolution, Plant Ecology. Växtekologi.
    Wakuru Murasi, L
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Biology, Department of Evolutionary Biology. Department of Ecology and Evolution, Plant Ecology. Växtekologi.
    Symbiosis between diatoms and cyanobacterial colonies2004In: Vie Milieu, Vol. 54, p. 163-170Article in journal (Refereed)
  • 12.
    Ulanova, Anna
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Biology, Department of Ecology and Evolution. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Biology, Department of Ecology and Evolution, Plant Ecology. Växtekologi.
    Snoeijs, Pauli
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Biology, Department of Ecology and Evolution. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Biology, Department of Ecology and Evolution, Plant Ecology. Växtekologi.
    Gradient responses of epilithic diatom communities in the Baltic Sea proper2006In: Estuarine, Coastal and Shelf Science, Vol. 68, p. 661-674Article in journal (Refereed)
  • 13.
    van Nieuwerburgh, L
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Biology, Department of Evolutionary Biology. Department of Ecology and Evolution, Plant Ecology. Växtekologi.
    Wänstrand, I
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Biology, Department of Evolutionary Biology. Department of Ecology and Evolution, Plant Ecology. Växtekologi.
    Snoeijs, P
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Biology, Department of Evolutionary Biology. Department of Ecology and Evolution, Plant Ecology. Växtekologi.
    Growth and C:N:P ratios in copepods grazing on N- or Si-limited phytoplankton bloom2004In: Hydrobiologia, Vol. 514, p. 57-72Article in journal (Refereed)
  • 14.
    Wänstrand, I
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Biology, Department of Ecology and Evolution. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Biology, Department of Ecology and Evolution, Plant Ecology. Växtekologi.
    Snoeijs, P
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Biology, Department of Ecology and Evolution. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Biology, Department of Ecology and Evolution, Plant Ecology. Växtekologi.
    Phytoplankton community dynamics assessed by ships-of-opportunity sampling in the northern Baltic Sea: A comparison of HPLC pigment analysis and cell counts2006In: Estuarine Coastal and Shelf Science, Vol. 66, no 1-2, p. 135-146Article in journal (Refereed)
1 - 14 of 14
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