Search Results - (Author, Cooperation:G. Jaworski)
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1Latest Papers from Table of Contents or Articles in PressB. Cederwall ; F. G. Moradi ; T. Back ; A. Johnson ; J. Blomqvist ; E. Clement ; G. de France ; R. Wadsworth ; K. Andgren ; K. Lagergren ; A. Dijon ; G. Jaworski ; R. Liotta ; C. Qi ; B. M. Nyako ; J. Nyberg ; M. Palacz ; H. Al-Azri ; A. Algora ; G. de Angelis ; A. Atac ; S. Bhattacharyya ; T. Brock ; J. R. Brown ; P. Davies ; A. Di Nitto ; Z. Dombradi ; A. Gadea ; J. Gal ; B. Hadinia ; F. Johnston-Theasby ; P. Joshi ; K. Juhasz ; R. Julin ; A. Jungclaus ; G. Kalinka ; S. O. Kara ; A. Khaplanov ; J. Kownacki ; G. La Rana ; S. M. Lenzi ; J. Molnar ; R. Moro ; D. R. Napoli ; B. S. Singh ; A. Persson ; F. Recchia ; M. Sandzelius ; J. N. Scheurer ; G. Sletten ; D. Sohler ; P. A. Soderstrom ; M. J. Taylor ; J. Timar ; J. J. Valiente-Dobon ; E. Vardaci ; S. Williams
Nature Publishing Group (NPG)
Published 2010Staff ViewPublication Date: 2010-12-24Publisher: Nature Publishing Group (NPG)Print ISSN: 0028-0836Electronic ISSN: 1476-4687Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsPublished by: -
2Articles: DFG German National LicensesJaworski, G. H. M. ; Talling, J. F. ; Heaney, S. I.
Oxford, UK : Blackwell Science Ltd
Published 2003Staff ViewISSN: 1365-2427Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: BiologyNotes: SUMMARY 1. Unialgal cultures of three species common in the freshwater phytoplankton were used to test limitation of specific growth rate and final yield in defined media of low K+ concentration (range 〈0.3–6 μmol L−1 or mmol m−3).2. Growth rate of the diatom Asterionella formosa was independent of K+ concentration above 0.7 μmol L−1. Final yield was dependent on initial concentration when accompanied by K+ depletion below this concentration, but not by lesser depletion with more residual K+. Analyses of particulate K in the biomass indicated a mean final cell content of 2.8 μmol K 10−8 cells, approximately 1.0% of the organic dry weight.3. Less detailed work with the diatom Diatoma elongatum showed no dependence of growth rate or final yield upon the initial K+ concentration in the range 0.8–3.2 μmol L−1. The phytoflagellate Plagioselmis nannoplanctica suffered net mortality in the lowest concentration tested, 0.8 μmol L−1.4. Comparison with the range of K+ concentration in natural fresh waters, including a depletion induced by an aquatic macrophyte, suggests that K+ is unlikely to limit growth of phytoplankton. Nevertheless, there can be correlation of K+ with lake trophy.Type of Medium: Electronic ResourceURL: -
3Articles: DFG German National LicensesStaff View
ISSN: 1365-2427Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: BiologyNotes: SUMMARY. 1 Total fluorescence spectra of thirty-two freshwater algae show that the majority of the information is contained in the excitation spectrum of emission at 680 nm.2. Previously suggested characteristics for the automatic identification of blue-green algae from their fluorescence properties, i.e. the presence of high phycoerythrin fluorescence and low chlorophyll fluorescence, are shown to be inapplicable to the freshwater blue-green algae studied here.Type of Medium: Electronic ResourceURL: -
4Articles: DFG German National LicensesFinden, D. A. S. ; Tipping, E. ; Jaworski, G. H. M. ; Reynolds, C. S.
[s.l.] : Nature Publishing Group
Published 1984Staff ViewISSN: 1476-4687Source: Nature Archives 1869 - 2009Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsNotes: [Auszug] The uptake of iron by phytoplankton, and the possibility of iron-limited growth, depend on the chemical speciation of the element5'7. It has usually been assumed that algae take up soluble ionic species. However, the stable form of iron in oxic waters of neutral or near-neutral pHisFe(m), which has ...Type of Medium: Electronic ResourceURL: -
5Articles: DFG German National LicensesReynolds, C. S. ; Jaworski, G. H. M. ; Roscoe, J. V. ; Hewitt, D. P. ; George, D. G.
Springer
Published 1998Staff ViewISSN: 1573-5117Keywords: phytoplankton ; trophic status ; phosphorus ; eutrophication ; species compositionSource: Springer Online Journal Archives 1860-2000Topics: BiologyNotes: Abstract The paper reports the impact of a sharp artificial enrichment of the available phosphorus in a small, acidic and oligotrophic corrie lake and its effects upon the phytoplankton supported. Annual average chlorophyll increased tenfold within two years, from ∼ 1.2 to 12.6 µg chl a l-1, but the species represented by large populations are the same as previously. Chrysophyte species, however, make up a smaller fraction of the total crop.Type of Medium: Electronic ResourceURL: