Phytoplankton

State and Evolution of the Baltic Sea, 1952-2005: A Detailed 50-Year Survey of Meteorology and Climate, Physics, Chemistry, Biology, and Marine Environment

Volumn , Issue , 2008, Pages 441-481

  Wasmund, Norbert ^a   Siegel, Herbert ^a  

^a LEIBNIZ INSTITUTE FOR BALTIC SEA RESEARCH   (Germany)

Author keywords

Phytoplankton biomass and linear relationship; Phytoplankton composition and biomass; Quantitative phytoplankton, chlorophyll methodology and satellite imagery

Indexed keywords

EID: 84889316552     PISSN: None     EISSN: None     Source Type: Book    
DOI: 10.1002/9780470283134.ch15     Document Type: Chapter

References (247)

1. Abshagen, G., 1908. Das Phytoplankton des Greifswalder Boddens. Diss. Greifswald.
2. Ackefors, H., Hernroth, L., Lindahl, O., Wulff, F., 1978. Ecological production studies of the phytoplankton and zooplankton in the Gulf of Bothnia. Finnish Marine Research, 244, 116-126.
3. Ærtebjerg Nielsen, G., Bresta, A.M., 1984. Guidelines forthe measurement of phytoplankton primary production. The Baltic Marine Biologists Publ. No.1, 2nd edn., pp. 1-23.
4. Ærtebjerg Nielsen, G., Gargas, E., 1984. Oxygen, nutrients and primary production in the open Danish waters. Limnologica, 15, 303-310.
5. Alasaarela, E., 1979. Phytoplankton and environmental conditions in central and coastal areas of the Bothnian Bay. Annals Botanica Fennici, 16, 241-274.
6. Alheit, J., Möllmann, C., Dutz, J., Kornilovs, G., Loewe, P., Mohrholz, V., Wasmund, N., 2005. Synchronous ecological regime shifts in the central Baltic and the North Sea in the late 1980s. ICES Journal of Marine Science, 62, 1205-1215.
7. Andersson, A., Hajdu, S., Haecky, P., Kuparinen, J., Wikner, J., 1996. Succession and growth limitation of phytoplankton in the Gulf of Bothnia (Baltic Sea). Marine Biology, 126, 791-801.
8. Apstein, C., 1904. Die Schatzungsmethode in der Planktonforschung. Wissenschaftliche Meeresuntersuchungen. Neue Folge, Abt. Kiel, 8, 103-123.
9. Apstein, C., 1906. Plankton in Nord-und Ostsee auf den deutschen Terminfahrten. 1. Teil (Volumina 1903). Wissenschaftliche Meeresuntersuchungen. Neue Folge, Abt. Kiel, 9, 1-26, 10 Tables.
10. Autio, R., Heiskanen, A.-S., Hällfors, G., Hällfors, S., Kaitala, S., Kivi, K., Kuosa, H., Kuparinen, J., Kuuopo-Leinikki, P., Lignell, R., Lindqvist, K., Pajuniemi, R., Ranta, E., Tamminen, T., Uitto, A., 1990. Ecological Plankton Research of the Baltic Sea. Project PELAG. Final Report 1987-1989. PELAG Press, Helsinki, 172 pp, App. 1-4.
11. Balode, M., Purina, I., 1996. Harmful phytoplankton in the Gulf of Riga (The Baltic Sea). In: Yasumoto T., Oshima Y., Fukuyo Y. (Eds.), Harmful and Toxic Algal Blooms. IOC/UNESCO, pp. 69-72.
12. Barber, R. T., Hilting, A. K., 2003. History of the study of plankton productivity. In:Williams P. J. l. B., Thomas D. N., Reynolds C. S. (Eds.), Phytoplankton productivity. Carbon Assimilation in Marine and Freshwater Ecosystems. Blackwell Science Ltd., Oxford, pp. 16-43.
13. Behrends, G., Hansen, G., Hansen, H.-P., 1994. Comparison of in situ and potential primary productivity in combination with diurnal cycles of biologically relevant parameters. In: Dybern B. I. (Ed.), ICES Cooperative Research Report, Vol. 201, pp. 23-33.
14. Berzins, B. V. A., 1932. Das Plankton der lettischen Terminfahrt im Frühjahr 1928 (Rigascher Meerbusen und Baltisches Meer). Folia Zoologica et Hydrobiologica, 4, 68-102.
15. Bodungen, B. v., 1975. Der Jahresgang der Nährsalze und der Primärproduktion des Planktons in der Kieler Bucht unter Berücksichtigung der Hydrographie. Diss., Kiel University, 116 pp.
16. Bodungen, B. v., 1986. Annual cycles of nutrients in a shallow inshore area, Kiel Bight: Variability and Trends. Ophelia, 26, 91-107.
17. Bodungen, B. v., Bröckel, K.v., Smetacek, V., Zeitzschel, B., 1981. Growth and sedimentation of the phytoplankton spring bloom in the Bornholm Sea (Baltic Sea). Kieler Meeresforschungen, Sonderheft, 5, 49-60.
18. Bralewska, J. M., 1992. Cyclic seasonal fluctuations of the phytoplankton biomass and composition in the Gdansk Basin in 1987-1988. ICES C.M. 1992/L:15, 1-12.
19. 2S-oxidation as motor of denitrification at the oxic-anoxic interface. Marine Ecology Progress Series, 77, 157-169.
20. Brosin, H.-J., Gohs, L., Seifert, T., Siegel, H., Byckova, I. A., Viktorov, S.V., Demina, M. D., Lobanov, V. J., Losinskij, V. N., Smoljanickij, V. M., 1988. Mesoskale Strukturen in der südlichen Ostsee im Mai 1985. Beitrage zur Meereskunde, 58, 8-18.
21. Busch, W., 1916-1920 Über das Plankton der Kieler Föhrde im Jahre 1912/13. Wissenschaftliche Meeresuntersuchungen. Neue Folge, Abt. Kiel, 18, 25-142.
22. Büse, T., 1915. Quantitative Untersuchungen von Planktonfangen des Feuerschiffes Fehmarnbelt vom April 1910 bis Marz 1911. Wissenschaftliche Meeresuntersuchungen. Neue Folge, Abt. Kiel, 17, 229-280.
23. Carpenter, E. J., Janson, S., Boje, R., Pollehne, F., Chang, J., 1995. The dinoflagellate Dinophysis norvegica: biological and ecological observations in the Baltic Sea. European Journal of Phycology, 30, 1-9.
24. Carstensen, J., Conley, D. J., Andersen, J. H., Ærtebjerg, G., 2006. Coastal eutrophication and trend reversal: a Danish case study. Limnology and Oceanography, 51, 398-408.
25. Carstensen, J., Conley, D. J., Henriksen, P., 2004. Frequency, composition, and causes of summer phytoplankton blooms in a shallow coastal ecosystem. Limnology and Oceanography, 49, 190-201.
26. Carstensen, J., Frohn, L.M., Hasager, C. B., Gustafsson, B. G., 2005. Summer algal blooms in a coastal ecosystem: the role of atmospheric deposition versus entrainment fluxes. Estuarine, Coastal and Shelf Science, 62, 595-608.
27. Carstensen, J., Henriksen, P., Heiskanen, A.-S., 2007. Summer algal blooms in shallow estuaries: definition, mechanisms, and link to eutrophication. Limnology and Oceanography, 52, 370-384.
28. Chen, C. Y., Durbin, E. G., 1994. Effects of pH on the growth and carbon uptake of marine phytoplankton. Marine Ecology Progress Series, 109, 83-94.
29. Conley, D., Humborg, C., Rahm, L., Savchuk, O. P., Wulff, F., 2002. Hypoxia in the Baltic Sea and basin-scale changes in phosphorus biogeochemistry. Environmental Science and Technology, 36, 5315-5320.
30. 3~ transport-mediated accumulation of inorganic carbon in the cyanobacte-rium Synechococcus ÜTEX 625. Plant Physiology, 104, 785-791.
31. Dowell, M. D., 1996. Optically active components and their relationship with meso-scale features in Baltic coastal zone. Meereswissenschaftliche Berichte. Warnemünde, 19, 114-139.
32. Driver, H., 1908. Das Ostseeplanktonder4 deutschen Terminfahrten im Jahre 1905. Wissenschaftliche Meeresuntersuchungen. Neue Folge, Abt. Kiel, 10, 106-127.
33. Edler, L., (Ed.), 1979. Recommendations for marine biological studies in the Baltic Sea. Phytoplankton and chlorophyll. The Baltic Marine Biologists Publ. No. 5. Gotab, Malmö, 38 pp.
34. Edler, L., 1984. A mass development of Ceratium species on the Swedish west coast. Limnologica, 15, 353-357.
35. Elmgren, R., 1984. Trophic dynamics in the enclosed, brackish Baltic Sea. Rapports et procès-verbaux des Réunion Conseil international pour l' Exploration de la Mer 183, 152-169.
36. Elmgren, R., 1989. Man's impact on the ecosystem of the Baltic Sea: energy flows today and at the turn of the century. Ambio, 18, 326-332.
37. 2 concentration on abloom of the coccolithophorid Emiliania huxleyi in mesocosm experiments. Limnology and Oceanography, 50, 493-507.
38. Fennel, K., 1999. Convection and the timing of phytoplankton spring blooms in the western Baltic Sea. Estuarine. Coastal and Shelf Science, 49, 113-128.
39. Finni, T., Kononen, K., Olsonen, R., Wallstrom, K., 2001. The history of cyanobacterial blooms in the Baltic Sea. Ambio, 30, 172-178.
40. 2-fixation by nonheterocystous cyanobacteria. In: Bothe H., de Bruyn F. J., Newton W. E. (Eds.), Nitrogen Fixation: Hundred Years After. Gustav Fischer Verlag, Stuttgart, pp. 183-188.
41. Gargas, E., (Ed.), 1975. A manual for phytoplankton primary production studies in the Baltic. The Baltic Marine Biologists Publ No. 2. Water Quality Institute, Horsholm, 88 pp.
42. Gargas, E., Ærtebjerg Nielsen, G., Mortensen, S., 1978. The Belt project. Phytoplankton production, chlorophyll-α and nutrients in the open Danish waters 1975-1977. The National Agency of Environmental Protection, Denmark, 61 pp. JJ trykteknik al/s, Copenhagen.
43. Gasiunaite, Z. R., Cardoso, A. C., Heiskanen, A.-S., Henriksen, P., Kauppila, P., Olenina, I., Pilkaityte, R., Purina, I., Razinkovas, A., Sagert, S., Schubert, H., Wasmund, N., 2005. Seasonality of coastal phytoplankton in the Baltic Sea: influence of salinity and eutrophication. Estuarine, Coastal and Shelf Science, 65, 239-252.
44. Gibbs, C. F., 1979. Chlorophyll b interference in the fluorometric determination of chlorophyll a and "phaeo-pigments". Australian Journal of Marine and Freshwater Research, 30, 597-606.
45. Gillbricht, M., 1951. Produktionsbiologische Untersuchungen in der Kieler Bucht. Dissertation, Univ. Kiel.
46. Gisselson, L.-Å., Carlsson, P., Granéli, E., Pallon, J., 2002. Dinophysis blooms in the deep euphotic zone of the Baltic Sea: do they grow in the dark? Harmful Algae, 1, 401-418.
47. Granéli, E., 1984. Algal growth potential and limiting nutrients for phytoplankton production in Oresund water of Baltic and Kattegat origin. Limnologica, 15, 563-569.
48. Granéli, E., Wallström, K., Larsson, U., Granéli, W., Elmgren, R., 1990. Nutrient limitation of primary production in the Baltic Sea area. Ambio, 19, 142-151.
49. Gromisz, S., Szymelfenig, M., 2005. Phytoplankton in the Hel upwelling region (The Baltic Sea). Oceanological and Hydrobiological Studies, 34(Suppl. 2), 115-135.
50. Gromisz, S., Witek, Z., 2001. Main phytoplankton assemblages in the Gulf of Gdańsk and the Pomeranian Bay from 1994 to 1997. Bulletin of the Sea Fisheries Institute, 2(153), 31-51.
51. Hajdu, S., Häglander, H., Larsson, U., 2007. Phytoplankton vertical distributions and composition in Baltic Sea cyanobacterial blooms. Harmful Algae, 6, 189-205.
52. Hajdu, S., Pertola, S., Kuosa, H., 2005. Prorocentrum minimum (Dinophyceae) in the Baltic Sea: morphology, occurrence-a review. Harmful Algae, 4, 471-480.
53. Hällfors, G., 2004. Checklist of Baltic Sea phytoplankton species (including some heterotrophic protistan groups). Baltic Sea Environment Proceedings, Vol. 95, 1-208.
54. Hällfors, G., Niemi, Å., 1974. A Chrysochromulina (Haptophyceae) bloom under the ice in the Tväarminne archipelago, southern coast of Finland. Memoranda Societatis pro Fauna et Flora Fennica, 50, 89-104.
55. Hannig, M., Lavik, G., Kuypers, M. M. M., Woebken, D., Martens-Habbena, W., Järgens, K., 2007. Shift from denitrification to anammox after inflow events in the central Baltic Sea. Limnology and Oceanography, 52, 1336-1345.
56. Harrison, P. J., Turpin, D. H., Bienfang, P. K., Davis, C. O., 1986. Sinking as a factor affecting phytoplankton species succession: the use of selective loss semi-continuous cultures. Journal of Experimental Marine Biology and Ecology, 99, 19-30.
57. Hegseth, E. N., Sakshaug, E., 1983. Seasonal variation in light-and temperature-dependent growth of marine planktonic diatoms in in situ dialysis cultures in the Trondheimsfjord, Norway (63°N). Journal of Experimental Marine Biology and Ecology, 67, 199-220.
58. 2 increases oceanic primary production. Nature, 388, 526-527.
59. Heiskanen, A.-S., 1998. Factors governing sedimentation and pelagic nutrient cycles in the northern Baltic Sea. Monographs of the Boreal Environmental Research, 8, 1-80.
60. HELCOM, 1983. Second Biological Intercalibration Workshop. Baltic Sea Environment Proceedings, Vol. 9, pp. 1-95.
61. HELCOM, 1987. First periodic assessment of the state of the marine environment of the Baltic Sea area: 1980-1985: background document. Baltic Sea Environment Proceedings, Vol. 17B, pp. 1-351.
62. HELCOM, 1988. Guidelines for the Baltic Monitoring Programme for the third stage. Part D. Biological determinands. Baltic Sea Environment Proceedings, Vol. 27D, pp. 1-161 (updated regularly at: http://sea.helcom.fi/Monas/CombineManual2/PartC/CFrame.htm).
63. HELCOM, 1990. Second periodic assessment of the state of the marine environment of the Baltic Sea, 1984-1988: background document. Baltic Sea Environment Proceedings, Vol. 35B, pp.1-432.
64. HELCOM, 1991. Third biological intercalibration workshop, 27-31 August 1990, Visby, Sweden. Baltic Sea Environment Proceedings, Vol. 38, pp. 1-153.
65. HELCOM, 1996. Third periodic assessment of the state of the marine environment of the Baltic Sea, 1989-1993: background document. Baltic Sea Environment Proceedings, Vol. 64B, pp. 1-252.
66. HELCOM, 2002. Environment of the Baltic Sea area, 1994-1998. Helsinki Commission. Baltic Sea Environment Proceedings, Vol. 82B, pp. 1-215.
67. Hensen, V., 1887. Ueber die Bestimmung des Plankton's oder des im Meere treibenden Materials an Pflanzen und Thieren. 5. Bericht der Kommission zur Wissenschaftlichen Üntersuchung der deutschen Meere, Kiel, Jg. Vol. 12-16, pp. 1-108.
68. Hewes, C. D., Sakshaug, E., Reid, F. M. H., Holm-Hansen, O., 1990. Microbial autotrophic and heterotrophic eucaryotes in Antarctic waters: relationships between biomass and chlorophyll, adenosine triphosphate and particulate matter. Marine Ecology Progress Series, 63, 27-35.
69. Höglander, H., Larsson, U., Hajdu, S., 2004. Vertical distribution and settling of spring phytoplankton in the offshore NW Baltic Sea Proper. Marine Ecology Progress Series, 283, 15-27.
70. Horstmann, U., 1975. Eutrophication and mass production of blue-green algae in the Baltic. Merentutkimuslaitoksen Julkaisu/Havsforskningsinstitutets, Skrift 239, 83-90.
71. Horstmann, U., 1983. Distribution patterns of temperature and water colour in the Baltic Sea as recorded in satellite images: indicators for phytoplankton growth. Berichte Institut für Meereskunde Kiel, 106, 145 pp.
72. Horstmann, U., 1988. Satellite remote sensing for estimating coastal offshore transports. In: Jansson, B.-O. (Ed.), Lecture notes on coastal and estuarine studies, vol. 22. Coastal-Offshore Ecosystem Interactions. American Geophysical Union, Washington, D. C., pp. 50-66.
73. Horstmann, U., van der Piepen, H., Barrot, K. W., 1986. The influence of river water on the southeastern Baltic Sea as observed by Nimbus 7/CZCS imagery. Ambio, 15, 286-289.
74. Hübel, H., Hübel, M., 1980. Nitrogen fixation during blooms of Nodularia in coastal waters and backwaters of the Arkona Sea (Baltic Sea) in 1974. Internationale Revue der gesamten Hydrobiologie, 65, 793-808.
75. Hübel, H., Hübel, M., 1995. Blaualgen-Wasserbluten in der Ostsee: Ursachen-Ausmaß-Folgen. Deutsche Hydrographische Zeitschrift. 2 (Suppl.), 151-158.
76. Hunter, B. L., Laws, E. A., 1981. ATP and chlorophyll a as estimators of phytoplankton carbon biomass. Limnology and Oceanography, 26, 944-956.
77. Hurrell, J. W., 1995. Decadal trends in the North Atlantic Oscillation: regional temperatures and precipitation. Science, 269, 676-679.
78. ICES/HELCOM, 1996. Report of the ICES/HELCOM Workshop on Quality Assurance of Pelagic Biological Measurements in the Baltic Sea. Warnemunde, ICES C. M. 1996/E:1, pp. 1-38.
79. Jaanus, A., Liiva, K., 1996. A review of the phytoplankton monitoring data in the southern Gulf of Finland and an attempt at biogeographical grouping on these grounds. Proceedings of the Estonian Academy of Sciences Ecology, Vol. 6, pp. 57-72.
80. Janssen, F., Neumann, T., Schmidt, M., 2004. Inter-annual variability in cyanobacteria blooms in the Baltic Sea controlled by wintertime hydrographic conditions. Marine Ecology Progress Series, 275, 59-68.
81. Jeffrey, S. W., 1997. Application of pigment methods to oceanography. In: Jeffrey S. W., Mantoura R. F. C., Wright S. W. (Eds.), Phytoplankton pigments in oceanography: Guidelines to Modern Methods. Vol. 10, UNESCO Publishing, Paris, pp. 127-166.
82. Jochem, F., 1989. Distribution and importance of autotrophic ultraplankton in a boreal inshore area (Kiel Bight, Western Baltic). Marine Ecology Progress Series, 53, 153-168.
83. Jochem, F., Babenerd, B., 1989. Naked Dictyocha speculum: a new type of phytoplankton bloom in the western Baltic. Marine Biology, 103, 373-379.
84. Kahru, M., 1997. Using satellites to monitor large-scale environmental change: a case study of cyanobacteria blooms in the Baltic. In: Kahru, M., Brown, C. W., Monitoring Algal Blooms. Springer, Berlin, pp. 43-61.
85. Kahru, M., Horstmann, U., Rud, O., 1994. Satellite detection of increased cyanobacteria blooms in the Baltic Sea: natural fluctuations or ecosystem change? Ambio, 23, 469-472.
86. Kahru, M., Nommann, S., 1990. The phytoplankton spring bloom in the Baltic Sea in 1985, 1986: multitude of spatio-temporal scales. Continental Shelf Research, 10, 329-354.
87. Kaiser, W., Renk, H., Schulz, S., 1981. Die Primärproduktion der Ostsee. Geodätische und Geophy-sikalische Veröffentlichungen. Reihe, 4(33), 27-52.
88. Kaiser, W., Schulz, S., 1973. Biologische Untersuchungen während des Internationalen Ostseejahres (International Baltic Year, IBY) 1969/70. Beiträge zur Meereskunde, 32, 9-31.
89. Kaiser, W., Schulz, S., 1978. On the causes for the differences in space and time of the commencement of the phytoplankton bloom in the Baltic. Kieler Meeresforschungen. Sonderheft, 4, 161-170.
90. Kell, V., 1981. Das Phytoplankton der Ostsee. Geodätische und Geophysikalische Veröffentlichungen. Reihe, 4(33), 3-26.
91. Kell, V., Martens, B., Pankow, H., Riesenweber, S., 1975. Die Mikroalgenbesiedlung der Darßer Boddengewäasser (suädliche Ostsee). Artenliste. Wissenschaftliche Zeitschrift der Universitäat Rostock, Mathematisch-naturwissenschaftliche Reihe, 24(6), 725-734.
92. Kendall, M. G., 1975. Rank Correlation Methods. Charles Griffin, London.
93. Khlebovich, V. V., 1990. Some physico-chemical and biological phenomena in the salinity gradient. Limnologica, 20, 5-8.
94. Kiørboe, T., Lundsgaard, C., Olesen, M., Hansen, J. L. S., 1994. Aggregation and sedimentation processes during a spring phytoplankton bloom: a field experiment to test coagulation theory. Journal of Marine Research, 52, 297-323.
95. Kononen, K., 1988. Phytoplankton summer assemblages in relation to environmental factors at the entrance of the Gulf of Finland during 1972-1985. Kieler Meeresforschungen, Sonderheft, 6, 281-294.
96. Kononen, K., 1992. Dynamics of the toxic cyanobacterial blooms in the Baltic Sea. Finnish Marine Research, 261, 3-36.
97. Kononen, K., Hällfors, S., Kokkonen, M., Kuosa, H., Laanemets, J., Pavelson, J., Autio, R., 1998. Development of a subsurface chlorophyll maximum at the entrance to the Gulf of Finland, Baltic Sea. Limnology and Oceanography, 43, 1089-1106.
98. Kononen, K., Huttunen, M., Hällfors, S., Gentien, P., Lunven, M., Huttula, T., Laanemets, J., Lilover, M.-J., Pavelson, J., Stips, A., 2003. Development of a deep chlorophyll maximum of Heterocapsa triquetra Ehrenb. at the entrance to the Gulf of Finland. Limnology and Oceanography, 48, 594-607.
99. Kononen, K., Kuparinen, J., Mäkelä, K., Laanemets, J., Pavelson, J., Nômmann, S., 1996. Initiation of cyanobacterial blooms in a frontal region at the entrance to the Gulf of Finland, Baltic Sea. Limnology and Oceanography, 41, 98-112.
100. Kononen, K., Niemi, A., 1984. Long-term variation of the phytoplankton composition at the entrance to the Gulf of Finland. Ophelia. 3(Suppl.), 101-110.
101. Kraefft, F., 1910. Über das Plankton in Ost-und Nordsee und den Verbindungsgebieten mit besonderer Beruücksichtigung der Copepoden. Wissenschaftliche Meeresuntersuchungen. Neue Folge, Abt. Kiel, 11, 29-108.
102. Krey, J., 1958. Chemical methods of estimating standard crop of phytoplankton. Rapports et procès-verbaux des Réunion Conseil International pour l' Exploration de la Mer, 144, 20-27.
103. Krey, J., 1974. Das Plankton. In: Magaard L., Rheinheimer G. (Eds.), Meereskunde der Ostsee. Springer-Verlag, Berlin, Heidelberg, New York, pp. 103-130.
104. Krey, J., Zeitzschel, B., 1971. Long-term observations of oxygen and chlorophyll a in Kiel Bight. ICES C. M., 1971/L: 11.
105. Kuosa, H., 1990. Subsurface chlorophyll maximum in the northern Baltic Sea. Archiv für Hydrobiologie, 118, 437-447.
106. Kuparinen, J., 1984. Annual and seasonal fluctuation of primary productivity and overall respiration in a pelagic plankton community off Tvärminne. Ophelia, 3(Suppl.), 111-122.
107. Kuparinen, J., Tuominen, L., 2001. Eutrophication and self-purification: counteractions forced by large-scale cycles and hydrodynamic processes. Ambio, 30, 190-194.
108. Kutser, T., 2004. Quantitative detection of chlorophyll in cyanobacterial blooms by satellite remote sensing. Limnology and Oceanography, 49, 2179-2189.
109. 2-fixing cyanobacterium Aphanizomenonflos-aquae in the Baltic Sea with reference to Anabaena spp. and Nodularia spumigena. Boreal Environmental Research, 10, 19-30.
110. Larsson, U., Hagotrüm, Å., 1982. Fractionated phytoplankton primary production, exudate release and bacterial production in a Baltic eutrophication gradient. Marine Biology, 67, 57-70.
111. Larsson, U., Hajdu, S., Walve, J., Elmgren, R., 2001. Baltic Sea nitrogen fixation estimated from the summer increase in upper mixed layer total nitrogen. Limnology and Oceanography, 46, 811-820.
112. Larsson, U., Hobro, R., Wulff, F., 1986. Dynamics of a Phytoplankton Spring Bloom in a Coastal Area of the Northern Baltic Proper. Contributions from the Askoü Laboratory, University of Stockholm, Sweden, 30, 1-32.
113. Larsson, U., Norling, L., Carlberg, S., Lööf, S., Tolstoy, A., v.Bröckl, K., Elizarjeva, V., Kaiser, W., Lassig, J., Mäkinen, I., Melvasalo, T., 1978. Intercalibration of methods for chlorophyll measurements in the Baltic Sea. Merentutkimuslaitoksen Julkaisu/Havsforskningsinstitutets, Skrift243, 63-76.
114. Lassig, J., Leppänen, J., Tamelander, G., 1984. Phytoplankton primary production and related factors in the Tvärminne sea area in 1972-1979 as compared with other parts of the Gulf of Finland. 12. Conference of Baltic Oceanographers, Gidrometeoizdat Leningrad, Part 4, pp. 62-77.
115. Lassig, J., Leppänen, J.-M., Niemi, Å., Tamelander, G., 1978. Phytoplankton primary production in the Gulf of Bothnia in 1972-1975 as compared with other parts of the Baltic Sea. Finnish Marine Research, 244, 101-115.
116. Latasa, M., Bidigare, R. R., Ondrusek, M. E., Kennicutt, II, M. C., 1996. HPLC analysis of algal pigments: a comparison exercise among laboratories and recommendations for improved analytical performance. Marine Chemistry, 51, 315-324.
117. Leppänen, J.-M., Bruun, J.-E., 1986. The role of pelagic ciliates including the autotrophic Mesodinium rubrum during the spring bloom of 1982 in the open northern Baltic Proper. Ophelia., 4(Suppl.), 147-157.
118. Leppünen, J. M., Niemi, Å., Rinne, I., 1988. Nitrogen fixation of Cyanobacteria (blue-green algae) and the nitrogen cycle of the Baltic Sea. Symbiosis, 6, 181-194.
119. Leppänen, J. M., Rantajarvi, E., Hällfors, S., Kruskopf, M., Laine, V., 1995. Unattended monitoring of potentially toxic phytoplankton species in the Baltic Sea in 1993. Journal of Plankton Research, 17, 891-902.
120. Lignell, R., Heiskanen, A.-S., Kuosa, H., Gundersen, K., Kuuppo-Leinikki, P., Pajuniemi, R., Uitto, A., 1993. Fate of a phytoplankton spring bloom: sedimentation and carbon flow in the planktonic food web in the northern Baltic. Marine Ecology Progress Series, 94, 239-252.
121. Lindholm, T., 1978. Autumnal mass development of the "Red Water" ciliate Mesodinium rubrum in the Åland archipelago. Memoranda Societatis Pro et Fauna Flora Fennica, 54, 1-5.
122. Lohmann, H., 1908. Untersuchungen zur Feststellung des vollständigen Gehaltes des Meeres an Plankton. Wissenschaftliche Meeresuntersuchungen. Neue Folge, Abt. Kiel, 10, 130-370.
123. Lorenzen, C. J., 1967. Determination of chlorophyll and pheo-piments: spectrophotometric equations. Limnology and Oceanography, 12, 343-346.
124. Mantoura, R. F. C., Jeffrey, S. W., Llewellyn, C. A., Claustre, H., Morales, C. E., 1997. Evaluation of methods and solvents for pigment extraction. In: Jeffrey S. W., Mantoura R. F. C., Wright S. W. (Eds.), Phytoplankton Pigments in Oceanography: Guidelines to Modern Methods, Vol. 10. UNESCO Publishing, Paris, pp. 361-380.
125. Maske, H., 1994. Long-term trends in seston and chlorophyll a in Kiel Bight, western Baltic. Continental Shelf Research, 14, 791-801.
126. Mazur-Marzec, H., Krezel, A., Kobos, J., Pliński, M., 2006. Toxic Nodularia spumigena blooms in the coastal waters of the Gulf of Gdańsk: a ten-year survey. Oceanologia, 48, 255-273.
127. Melvasalo, T., Niemi, Å., Niemistö, L., Rinne, I., 1983. On the importance of the nitrogen fixation in the Baltic Sea ecosystem. Symposium on Ecological Investigations of the Baltic Sea Environment, Riga, 1983, 16-19 March, 176-189.
128. Melvasalo, T., Viljamaa, H., 1987. Coastal pollution and seasonal fluctuations in heterocystous bluegreen algae in the northern part of the Gulf of Finland. Proceedings of the 4th Symposium of the Baltic Marine Biologists, Gdansk 1975, Sea Fisheries Institute Gdynia, pp. 107-114.
129. Menden-Deuer, S., Lessard, E. J., 2000. Carbon to volume relationships for dinoflagellates, diatoms and other protist plankton. Limnology and Oceanography, 45, 569-579.
130. Merkle, H., 1910. Das Plankton der deutschen Ostseefahrt Juli-August 1907. Wissenschaftliche Meeresuntersuchungen. Neue Folge, Abt. Kiel, 11, 321-346.
131. Möllmann, C., Müller-Karulis, B., Diekmann, R., Flinkman, J., Kornilovs, G., Łysiak-Pastuszak, E., Modin, J., Pliksha, M., Walther, Y., Wasmund, N., 2006. An integrated ecosystem assessment of the Central Baltic Sea and the Gulf of Riga. ICES C. M., 2006/P: 03.
132. 2 fixation. Applied Environmental Microbiology, 62, 986-993.
133. Nakonieczny, J., Ochocki, S., Renk, H., 1991. Long-term changes in primary production and chlorophyll concentrations in the southern Baltic. Acta Ichthyologica et Piscatoria, 21(Suppl.), 145-152.
134. Nehring, S., 1994. First living Alexandrium minutum resting cysts in Western Baltic. Harmful Algae News, 9, 1-2.
135. Nehring, S., 1997. Giftalgen. DerDinoflagellat Gymnodinium catenatum. Mikrokosmos, 86, 151-156.
136. Nehring, S., 1998. Establishment of thermophilic phytoplankton species in the North Sea: biological indicators of climatic changes? ICES Journal of Marine Science, 55, 818-823.
137. Niemi, Å., 1973. Ecology of phytoplankton in the Tvarminne area, SW coast of Finland. I. Dynamics of hydrography, nutrients, chlorophyll a and phytoplankton. Acta Botanica Fennica, 100, 1-68.
138. Niemi, Å., 1975. Ecology of phytoplankton in the Tvärminne area, SW coast of Finland. II. Primary production and environmental conditions in the archipelago and the sea zone. Acta Botanica Fennica, 105, 1-73.
139. Niemi, Å., 1979. Blue-green algal blooms and N:P ratio in the Baltic Sea. ActaBotanicaFennica, 110, 57-61.
140. Niemi, Å., Melvasalo, T., Heinonen, P., 1985. Phytoplankton counting techniques and primary production measurements: comments on the results of intercalibration. Aqua Fennica, 15, 89-103.
141. Niemi, Å., Ray, I.-L., 1977. Phytoplankton production in Finnish coastal waters. Report 2: Phytoplankton Biomass and composition in 1973. MERI, 4, 6-22.
142. Nimer, N. A., IglesiasRodriguez, M. D., Merrett, M. J., 1997. Bicarbonate utilization by marine phytoplankton species. Journal of Phycology, 33, 625-631.
143. Nômmann, S., Sildam, S., Nôges, T., Kahru, M., 1991. Plankton distribution during a coastal upwelling event off Hiiumaa. Baltic Sea: impact of short-term flow field variability. Continental Shelf Research, 11, 95-108.
144. Ochocki, S., Mackiewicz, T., Nakonieczny, J., Zalewski, M., 1995. Primary production, chlorophyll, quantitative and qualitative composition of phytoplankton in the Pomeranian Bay. Bulletin of the Sea Fisheries Institute, 3(136), 33-42.
145. Ochocki, S., Renk, H., Nakonieczny, J., Gromisz, S., 1994. Potential primary production and chlorophyll concentration at an anchor station during PEX'86. In: Dybern, B. I. (Ed.), ICES Cooperative Research Report, Vol. 201, pp. 97-103.
146. Ohlendieck, U., Stuhr, A., Siegmund, H., 2000. Nitrogen fixation by diazotrophic cyanobacteria in the Baltic and transfer of the newly fixed nitrogen for picoplankton organisms. Journal of Marine Systems, 25, 213-219.
147. Olenina, I., 1996. Species composition of the phytoplankton in the Kursiu Marios Lagoon and the south-eastern Baltic coastal zone (in Russian). Botanica Lithuanica, 2, 259-300.
148. Olenina, I., Hajdu, S., Andersson, A., Edler, L., Wasmund, N., Busch, S., Göbel, J., Gromisz, S., Huseby, S., Huttunen, M., Jaanus, A., Kokkonen, P., Ledaine, I., Niemkiewicz, E., 2006. Biovolumes and size-classes of phytoplankton in the Baltic Sea. Baltic Sea Environment Proceedings, Vol. 106, pp. 1-144.
149. Olesen, M., Lundsgaard, C., Andrushaitis, A., 1999. Influence of nutrients and mixing on the primary production and community respiration in the Gulf of Riga. Journal of Marine Systems, 23, 127-143.
150. Öström, B., 1976. Fertilization of the Baltic by nitrogen fixation in the blue-green algae Nodularia spumigena. Remote Sensing of the Environment, 4, 305-310.
151. Parsons, T. R., Takahashi, M., Hargrave, B., 1984. Biological oceanographic processes. Pergamon Press, Oxford, 330 pp.
152. Partensky, F., Sournia, A., 1986. Le dinoflagellé Gyrodinium cf. aureolum dans le plancton de l'Atlantique nord: identification, écologie, toxicite. Cryptogamie Algologie, 7, 251-275.
153. Passow, U., 1990. Vertikalverteilung und Sedimentation von Phytoplanktonarten in der mittleren Ostsee während des Frühjahres 1986. Berichte aus dem Institut fur Meereskunde an der Christian-Albrechts-Universitüat Kiel, 192, 216 pp.
154. Passow, U., 1991. Vertical migration of Gonyaulax catenata and Mesodinium rubrum. Marine Biology, 110, 455-463.
155. Pavelson, J., Kononen, K., Laanemets, J., 1999. Chlorophyll distribution patchiness caused by hydrodynamical processes: a case study in the Baltic Sea. ICES Journal of Marine Science, 56 (Suppl), 87-99.
156. Peinert, R., Saure, A., Stegmann, P., Stienen, C., Haardt, H., Smetacek, V., 1982. Dynamics of primary production and sedimentation in a coastal ecosystem. Netherlands Journal of Sea Research, 16, 276-289.
157. PEX, 1989. Baltic Sea patchiness experiment-PEX 86. Part 1 (1, 2) General report. Cooperative Research Report, ICES, Vol. 163, 107, 157 pp.
158. Pitcher, G. C., 1988. Mesoscale heterogeneities of the phytoplankton distribution in St. Helena Bay, South Africa, following an upwelling event. South African Journal Marine Science, 7, 9-23.
159. Pitkänen, H., Tamminen, T., 1995. Nitrogen and phosphorus as production limiting factors in the estuarine waters of the eastern Gulf of Finland. Marine Ecology Progress Series, 129, 283-294.
160. Pliński, M., Jozwiak, T., 1999. Temperature and N:P ratio as factors causing blooms of blue-green algae in the Gulf of Gdansk (Poland). Oceanologia, 41(1), 73-80.
161. Poutanen, E.-L., Nikkilä, K., 2001. Carotenoid pigments of tracers of cyanobacterial blooms in recent and post-glacial sediments of the Baltic Sea. Ambio, 30, 179-183.
162. Probst, B., 1977. Primary production. In: Rheinheimer G. (Ed.), Ecological Studies, Vol. 25.Springer-Verlag, Berlin, Heidelberg, pp.71-78.
163. 2 enrichment of aerating gas in the growth of an estuarine diatom. Aquaculture, 17, 1-15.
164. 2 enrichment on the bloom-forming cyanobacterium Microcystis aeruginosa (Cyanophyceae): physiological responses and relationships with the availability of dissolved inorganic carbon. Journal of Phycology, 38, 721-729.
165. QUASIMEME, 2000. Laboratory performance studies. Round 19, DE-6, Exercise 427. Chlorophyll a in seawater. January-February 2000.
166. Raateoja, M., Seppälä, J., Kuosa, H., Myrberg, K., 2005. Recent changes in trophic state of the Baltic Sea along SW coast of Finland. Ambio, 34, 188-191.
167. Rantajarvi, E., Leppänen, J. M., 1994. Unattended algal monitoring on merchant ships in the Baltic Sea. TemaNord (546), 1-60.
168. Raven, J. A., 1994. Carbon fixation and carbon availability in marine phytoplankton. Photosynthesis Research, 39, 259-273.
169. Redfield, B. H., Richards, F. A., 1963. The influence of organisms on the composition of seawater. In: Hill M. N. (Ed.), The Sea, Vol. 2. Wiley, New York, pp. 26-77.
170. Renk, H., Nakonieczny, J., Ochocki, S., 1988. Primary production in the Southern Baltic in 1985 and 1986 compared with long-term mean seasonal variation. Kieler Meeresforschungen, Sonderh., 6, 203-209.
171. Renk, H., Ochocki, S., Chmielowski, H., Gromisz, S., Nakonieczny, J., Pastuszak, M., Zalewski, M., 1999. Photosynthetic light curves in the Pomeranian Bay. Oceanologia, 41(3), 355-371.
172. Richardson, K., Heilmann, J. P., 1995. Primary production in the Kattegat: past and present. Ophelia, 41, 317-328.
173. Riebesell, U., Wolf-Gladrow, D. A., Smetacek, V., 1993. Carbon dioxide limitation of marine phytoplankton growth rates. Nature, 361, 249-251.
174. Ränner, U., 1985. Nitrogen transformations in the Baltic Proper: denitrification counteracts eutrophication. Ambio, 14, 134-138.
175. Rothe, F., 1941. Quantitative Untersuchungen über die Planktonverteilung in der östlichen Ostsee. Berichte der deutschen wissenschaftlichen Kommission für Meeresforschung. Neue Folge, 10 (3), 291-368.
176. Russak, V., 1994. Is the radiation climate in the Baltic Sea region changing? Ambio, 23, 160-163.
177. Sandén, P., Håkansson, B., 1996. Long-term trends in Secchi depth in the Baltic Sea. Limnology and Oceanography, 41, 346-351.
178. Schulz, S., Breuel, G., Irmisch, A., Siegel, H., Kell, V., 1984. Results of ecological investigations during the spring bloom in the Arkona Sea. Ophelia., 3(Suppl.), 213-227.
179. Schulz, S., Breuel, G., Lass, U., Matthaus, W., Nehring, D., Postel, L., 1989. The patchy distribution of oceanological parameters during the spring bloom in the Baltic Proper. In: Ryland J. S., Tyler P. A. (Eds.), Reproduction, Genetics and Distribution of Marine Organisms. Olsen and Olsen, Fredensborg, Denmark, pp. 451-458.
180. Schulz, S., Kaiser, W., 1976. Produktionsbiologische Untersuchungen in der Ostsee 1975 und einige spezielle Ergebnisse aus dem Jahre 1974. Fischerei-Forschung, Wissenschaftliche Schriftenreihe, 14(1), 53-63.
181. Schulz, S., Kaiser, W., 1986. Increasing trends in the plankton variables in the Baltic Sea-afurther sign of eutrophication? Ophelia, 4(Suppl.), 249-257.
182. Schulz, S., Kaiser, W., Breuel, G., 1978. The annual course of some biological and chemical parameters at two stations in the Arkona and Bornholm Sea in 1975 and 1976. Kieler Meeresforschungen, Sonderheft. 4, 154-160.
183. Schulz, S., Kaiser, W., Breuel, G., 1992. A comparison of biological data from 1976-1990 and 1991: the influence of a warm winter. ICES C. M. 1992/L:19.
184. Seppälä, J., Ylöstalo, P., Kuosa, H., 2005. Spectral absorption and fluorescence characteristics of phytoplankton in different size fractions across a salinity gradient in the Baltic Sea. International Journal of Remote Sensing, 26, 387-414.
185. Seppälä, J., Ylöstalo, P., Kaitala, S., Hällfors, S., Raateoja, M., Maunula, P., 2007. Ship-of-opportunity based phycocyanin fluorescence monitoring of the filamentous cyanobacteria bloom dynamics in the Baltic Sea. Estuarine Coastal and Shelf Science, 73, 489-500.
186. 2 and pH. Verhandlungen der internationalen Vereinigung für Limnologie, 24, 38-54.
187. Siegel, H., Gerth, M., 2000. The exceptional summer 1997 in the Baltic Sea: the warmest August, the Oder flood, and phytoplankton blooms. In: Halpern, D. (Ed.), Satellites, Oceanography and Society. Elsevier Oceanography Series, pp. 239-254.
188. Siegel, H., Gerth, M., Mutzke, A., 1999a. Dynamics of the Oder river plume in the southern Baltic Sea: satellite data and numerical modelling. Continental Shelf Research, 18, 1143-1159.
189. Siegel, H., Gerth, M., Schmidt, T., 1996. Water exchange in the Pomeranian Bight investigated by satellite data and shipborne measurements. Continental Shelf Research, 16, 1793-1817.
190. Siegel, H., Gerth, M., Ohde, T., 1999c. Remote sensing of phytoplankton blooming in the Baltic Sea using SeaWiFS data. In: IGARSS '99: Proceedings IEEE International Geoscience and Remote Sensing Symposium, 28.6.1999-2.7.1999, Hamburg. Piscataway: IEEE 2, pp. 837-839.
191. Siegel, H., Gerth, M., Ohde, T., 2002. Remote sensing applications in coastal zone management. In: Schernewski G., Schiewer U. (Eds.), Baltic Coastal Ecosystems: Structure, Function and Coastal Zone Management. CEEDES Series. Springer Verlag, Berlin, Heidelberg, New York, pp. 279-292.
192. Siegel, H., Ohde, T., Gerth, M., 2001. SeaWiFS validation and application in the Baltic Sea. In: Proceedings of 4th Workshop on Ocean Remote Sensing, 2001, 30 May-1 June, Berlin, pp. 97-105.
193. Siegel, H., Gerth, M., Neumann, T., Doerffer, R., 1999b. Case studies on phytoplankton blooms in coastal and open waters of the Baltic Sea using coastal zone colour scanner data. International Journal of Remote Sensing, 20, 1249-1264.
194. Smetacek, V., 1985. The annual cycle of Kiel Bight plankton: a long-term analysis. Estuaries, 8, 145-157.
195. Smetacek, V., Hendrikson, P., 1979. Composition of particulate organic matter in Kiel Bight in relation to phytoplankton succession. Oceanologica Acta, 2, 287-298.
196. Smetacek, V., Passow, U., 1990. Spring bloom initiation and Sverdrup's critical-depth model. Limnology and Oceanography, 35, 228-234.
197. Smetacek, V., v. Bodungen, B., Knoppers, B., Peinert, R., Pollehne, F., Stegmann, P., Zeitzschel, B., 1984. Seasonal stages characterizing the annual cycle of an inshore pelagic system. Rapports et proces-verbaux des Reunion Conseil international pour l' Exploration de la Mer, 183, 126-135.
198. Sörensson, F., Sahlsten, E., 1987. Nitrogen dynamics of a cyanobacteria bloom in the Baltic Sea: new versus regenerated production. Marine Ecology Progress Series, 37, 277-284.
199. Stal, L. J., Albertano, P., Bergman, B., v. Bräockel, K., Gallon, J. R., Hayes, P. K., Sivonen, K., Walsby, A. E., 2003. BASIC: Baltic Sea cyanobacteria. An investigation of the structure and dynamics of water blooms of cyanobacteria in the Baltic Sea: responses to a changing environment. Continental Shelf Research, 23, 1695-1714.
200. Stal, L. J., Staal, M., Villbrandt, M., 1999. Nutrient control of cyanobacterial blooms in the Baltic Sea. Aquatic Microbial Ecology, 18, 165-173.
201. Steemann Nielsen, E., 1952. The use of radio-active carbon (14C) for measuring organic production in the sea. Journal du Conseil Permanent International Pour l' Exploration de la Mer, 18, 117-140.
202. Strathmann, R. R., 1967. Estimating the organic carbon content of phytoplankton from cell volume or plasma volume. Limnology and Oceanography, 12, 411-418.
203. Strickland, J. D. H., 1960. Measuring the production of marine phytoplankton. Bulletin of the Fisheries Research Board of Canada, 122, 1-172.
204. Strickland, J. D. H., Parsons, T. R., 1960. A manual of sea-water analysis. Bulletin of the Fisheries Research Board of Canada, 125, 1-185.
205. Struck, U., Pollehne, F., Bauerfeind, E., v. Bodungen, B., 2004. Sources of nitrogen for the vertical particle flux in the Gotland Sea (Baltic Proper): results from sediment trap studies. Journal of Marine Systems, 45, 91-101.
206. Suikkanen, S., Laamanen, M., Huttunen, M., 2007. Long-term changes in summer phytoplankton communities of the open northern Baltic Sea. Estuarine, Coastal and Shelf Science, 71, 580-592.
207. Talling, J. F., 1984. Past and contemporary trends and attitudes in work on primary productivity. Journal of Plankton Research, 6, 203-217.
208. Theede, H., 1984. Ökosystem Ostsee verändert sich ständig. Naturwissenschaftliche Rundschau, 37, 225-227.
209. Tortell, P. D., Reinfelder, J. R., Morel, F. M. M., 1997. Active uptake of bicarbonate by diatoms. Nature, 390, 243-344.
210. Trzosińska, A., Łysiak-Pastuszak, E., 1996. Oxygen and nutrients in the southern Baltic Sea. Oceanological Studies, 1996 (1-2), 41-76.
211. Tuominen, L., Heinänen, A., Kuparinen, J., Nielsen, L. P., 1998. Spatial and temporal variability of denitrification in the sediments of the northern Baltic Proper. Marine Ecology Progress Series, 172, 13-24.
212. Ulbricht, K. A., and Schmidt, D., 1977. Massenauftreten mariner Blaualgen in der Ostsee auf Satellitenaufnahmen erkannt, DFVLR-Nachrichten, No. 22, 913-915.
213. UNESCO, 1966. Determination of photosynthetic pigments in sea-water. Monographs on Oceanographic Methodology, Vol.1, pp. 1-69.
214. Utermöhl, H., 1927. Unzuläanglichkeiten bei den bisherigen Einteilungen des mikroskopischen Gesichtsfeldes und ihre Beseitigung durch das Zäahlstreifen-Okular. Zeitschrift fuär wissenschaftliche Mikroskopie, 44, 466-470.
215. Utermöhl, H., 1931. Neue Wege in der quantitativen Erfassung des Planktons. Verhandlungen der Internationalen Vereinigung für theoretische und angewandte Limnologie, 5, 567-596.
216. Utermöhl, H., 1958. Zur Vervollkommnung der quantitativen Phytoplankton-Methodik. Mitteilungen der Internationalen Vereinigung für theoretische und angewandte Limnologie, 9, 1-38.
217. Vähtera, E., Laanemets, J., Pavelson, J., Huttunen, M., Kononen, K., 2005. Effect of upwelling on the pelagic environment and bloom-forming cyanobacteria in the western Gulf of Finland, Baltic Sea. Journal of Marine Systems, 58, 67-82.
218. Valikangas, I., 1926. Planktologische Untersuchungen im Hafengebiet von Helsingfors. Acta Zoologica Fennica, 1, 1-298.
219. 14C-Methode. Wissenschaftliche Zeitschrift der Wilhelm-Pieck-Universtät Rostock, naturwissenschaftliche Reihe, 31(6), 37-41.
220. Wasmund, N., 1994. Phytoplankton periodicity in a eutrophic coastal water of the Baltic Sea. Internationale Revue der Gesamten Hydrobiologie, 79, 259-285.
221. Wasmund, N., 1996. Periodicity and trends in the phytoplankton of a shallow coastal water. Proceedings of the 13th Symposium of the Baltic Marine Biologists, pp. 63-66.
222. Wasmund, N., 1997. Occurrence of cyanobacterial blooms in the Baltic Sea in relation to environmental conditions. Internationale Revue der Gesamten Hydrobiologie, 82, 169-184.
223. Wasmund, N., 2002. Harmful algal blooms in coastal waters of the south-eastern Baltic Sea. In: Schernewski G., Schiewer U. (Eds), Baltic Coastal Ecosystems: Structure, Function and Coastal Zone Management. CEEDES Series. Springer Verlag, Berlin, Heidelberg, New York, pp. 93-116.
224. Wasmund, N., Alheit, J., Pollehne, F., Siegel, H., Zettler, M. L., 1999a. Der biologische Zustand der Ostsee im Jahre 1988 auf der Basis von Phytoplankton-, Zooplankton-und Zoobenthosuntersu-chungen. Meereswissenschaftliche Berichte, Warnemunde, 37, 1-75.
225. Wasmund, N., Andrushaitis, A., Lysiak-Pastuszak, E., Muller-Karulis, B., Nausch, G., Neumann, T., Ojaveer, H., Olenina, I., Postel, L., Witek, Z., 2001a. Trophic status of the south-eastern Baltic Sea: a comparison of coastal and open areas. Estuarine, Coastal and Shelf Science, 53, 849-864.
226. Wasmund, N., Göbel, J., v. Bodungen, B., 2007. 100-years-changes in the phytoplankton community of Kiel Bight (Baltic Sea). Journal of Marine Systems. http://dx.doi.org/10.1016/jjmarsys.2006. 09.009.
227. Wasmund, N., Nausch, G., Matthaus, W., 1998. Phytoplankton spring blooms in the southern Baltic Sea-spatio-temporal development and long-term trends. Journal of Plankton Research, 20, 1099-1117.
228. Wasmund, N., Nausch, G., Postel, L., Witek, Z., Zalewski, M., Gromisz, S., Łysiak-Pastuszak, E., Olenina, I., Kavolyte, R., Jasinskaite, A., Muller-Karulis, B., Ikauniece, A., Ojaveer, H., Kallaste, K., Jaanus, A., 2000. Trophic status of coastal and open areas of the south-eastern Baltic Sea based on nutrient and phytoplankton data from 1993-1997. Meereswissenschaftliche Berichte, Warnemünde, 38, 1-83.
229. Wasmund, N., Nausch, G., Schneider, B., 2005a. Primary production rates calculated by different concepts: an opportunity to study the complex production system in the Baltic Proper. Journal of Sea Research, 54, 244-255.
230. Wasmund, N., Nausch, G., Schneider, B., Nagel, K., Voss, M., 2005b. Comparison of nitrogen fixation rates determined with different methods: a study in the Baltic Proper. Marine Ecology Progress Series, 297, 23-31.
231. Wasmund, N., Pollehne, F., Postel, L., Siegel, H., Zettler, M. L., 2001b. Biologische Zustandseinschätzung der Ostsee im Jahre 2000. Meereswissenschaftliche Berichte, Warnemünde, 46, 1-74.
232. Wasmund, N., Pollehne, F., Postel, L., Siegel, H., Zettler, M. L., 2004. Biologische Zustandseinschatzung der Ostsee im Jahre 2003. Meereswissenschaftliche Berichte, Warnemünde, 60, 1-87.
233. Wasmund, N., Pollehne, F., Postel, L., Siegel, H., Zettler, M. L., 2005c. BiologischeZustandseinschätzung der Ostsee im Jahre 2004. Meereswissenschaftliche Berichte, Warnemünde, 64, 1-78.
234. Wasmund, N., Topp, I., Schories, D., 2006. Optimising the storage and extraction of chlorophyll samples. Oceanologia, 48, 125-144.
235. Wasmund, N., Uhlig, S., 2003. Phytoplankton trends in the Baltic Sea. ICES Journal of Marine Science, 60, 177-186.
236. Wasmund, N., Voss, M., Lochte, K., 2001c. Evidence of nitrogen fixation by nonheterocystous cyanobacteria in the Baltic Sea and re-calculation of a budget of nitrogen fixation. Marine Ecology Progress Series, 214, 1-14.
237. Wasmund, N., Zalewski, M., Busch, S., 1999b. Phytoplankton in large river plumes in the Baltic Sea. ICES Journal of Marine Science. 56(Suppl.), 23-32.
238. Welschmeyer, N. A., 1994. Fluorometric analysis of chlorophyll a in the presence of chlorophyll b and pheopigments. Limnology and Oceanography, 39, 1985-1992.
239. Weyhenmeyer, G. A., Blenckner, T., Pettersson, K., 1999. Changes in the phytoplankton spring outburst related to the North Atlantic Oscillation. Limnology and Oceanography, 44, 1788-1792.
240. Willén, T., 1995. Växtplankton i Östersjön 1979-1988. Naturvardsverket Rapport, 4288, pp. 1-22, Annex.
241. Witek, Z., 1986. Seasonal changes in the composition and size structure of plankton in the near-shore zone of the Gulf of Gdńsk. Ophelia, 4(Suppl.), 287-298.
242. Witek, Z., Ochocki, S., Maciejowska, M., Pastuszak, M., Nakonieczny, J., Podgorska, B., Kownacka, J. M., Mackiewicz, T., Wrzesińska-Kwiecien, M., 1997. Phytoplankton primary production and its utilization by the pelagic community in the coastal zone of the Gulf of Gdańsk (Southern Baltic). Marine Ecology Progress Series, 148, 169-186.
243. 2 concentration on growth and isotopic composition of marine plankton. Tellus, Series. B, 51, 461-476.
244. Wrzołek, L., 1996. Phytoplankton in the Gdańsk Basin in 1979-1993. Oceanological Studies, 1-2, 87-100.
245. Yentsch, C. S., Menzel, D.W., 1963. A method for the determination of phytoplankton chlorophyll and phaeophytin by fluorescence. Deep-Sea Research, 10, 221-231.
246. Zalewski, M., Ameryk, A., Szymelfenig, M., 2005. Primary production and chlorophyll a concentration during upwelling events along the Hel Peninsula (the Baltic Sea). Oceanological and Hydrobiological Studies, 34(Suppl. 2), 97-113.
247. 2 in the subtropical North Pacific Ocean. Nature, 412, 635-638.