Seasonal and spatial variability in the abundance of auto- and heterotrophic plankton in Lake Tanganyika

Ciliates; Heterotrophic nanoflagellates; Lake Tanganyika; Microbial food web; Picoplankton; abundance; annual variation; autotrophy; bacterium; biomass; food web; heterotrophy; light intensity; microorganism; monitoring; phytoplankton; picoplankton; protozoan; seasonal variation; seasonality; spatial variation; Africa; East African Lakes; Sub-Saharan Africa; Bacillariophyta; Bacteria (microorganisms); Ciliophora; Eukaryota; Prokaryota; Protozoa

Abstract :

[en] This study aims to evaluate the seasonal and interannual variability in the importance of the microbial food web in Lake Tanganyika. Phytoplankton, bacteria and protozoa (heterotrophic nanoflagellates and ciliates) were monitored at two contrasting pelagic sites (Kigoma and Mpulungu) during 3 consecutive years. In addition, spatial variation was studied along 3 north-south transects during contrasting seasons. The study period covered a wide range of limnological conditions, with mixing depth ranging from 13 to >100 m and euphotic depth from 14 to 65 m. The consistently high bacterial biomass (up to 62 μg C l-1) and the high contribution of small phytoplankton (< 5 μm) to the total phytoplankton biomass (on average 50 % in Kigoma and 84 % in Mpulungu) point to an important role of the microbial food web in the lake throughout the year. Total phytoplankton biomass increased during periods of low water column stability, with an increased biomass of small eukaryotic phytoplankton (2 to 5 μm) at both stations, together with autotrophic prokaryotic picoplankton at the southern station Mpulungu and diatoms at the northern station Kigoma. Heterotrophic bacteria, heterotrophic nanoflagellates (0.06 to 11.01 μg C l-1) and ciliates (up to 8.16 μg C l-1) did not show this seasonality. The main seasonal and spatial variability in the importance of the microbial food web seems therefore primarily linked to the contribution of small phytoplankton, which may be better adapted to lower average light intensities and higher N:P ratios during periods of deep mixing. © E. Schweizerbart'sche Verlagsbuchhandlung 2007.

Disciplines :

Aquatic sciences & oceanology

Author, co-author :

De Wever, A.; Ghent University, Department Biology, Protistology and Aquatic Ecology, Krijgslaan 281 - S8, 9000 Ghent, Belgium

Muylaert, K.; Ghent University, Department Biology, Protistology and Aquatic Ecology, Krijgslaan 281 - S8, 9000 Ghent, Belgium, K. U. Leuven, Campus Kortrijk, Kortrijk, Belgium

Cocquyt, C.; Ghent University, Department Biology, Protistology and Aquatic Ecology, Krijgslaan 281 - S8, 9000 Ghent, Belgium, National Botanic Garden of Belgium, Meise, Belgium

Van Wichelen, J.; Ghent University, Department Biology, Protistology and Aquatic Ecology, Krijgslaan 281 - S8, 9000 Ghent, Belgium

Plisnier, Pierre-Denis ; Université de Liège - ULiège > Département d'astrophysique, géophysique et océanographie (AGO) > Chemical Oceanography Unit (COU) ; Royal Museum for Central Africa, Tervuren, Belgium

Vyverman, W.; Ghent University, Department Biology, Protistology and Aquatic Ecology, Krijgslaan 281 - S8, 9000 Ghent, Belgium

Language :

English

Title :

Seasonal and spatial variability in the abundance of auto- and heterotrophic plankton in Lake Tanganyika

Publication date :

2007

Journal title :

Fundamental and Applied Limnology

ISSN :

1863-9135

Publisher :

E. Schweizerbart'sche Verlagsbuchhandlung, United States - Delaware

Volume :

170

Issue :

Pages :

49 - 63

Peer reviewed :

Peer Reviewed verified by ORBi

Available on ORBi :

since 17 September 2022

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Bibliography

Bergeron, M. & Vincent, W. F., 1997: Microbial food web responses to phosphorus supply and solar UV radiation in a subarctic lake. - Aquat. Microb. Ecol. 12: 239-249.
Bertilsson, S., Berglund, O., Karl, D. M. & Chisholm, S. W., 2003: Elemental composition of marine Prochlorococcus and Synechococcus: Implications for the ecological stoichiometry of the sea. - Limnol. Oceanogr. 48: 1721-1731.
Buck, K. R., Chavez, F. P. & Campbell, L., 1996: Basin-wide distributions of living carbon components and the inverted trophic pyramid of the central gyre of the North Atlantic Ocean, summer 1993. - Aquat. Microb. Ecol. 10: 283-298.
Bulgakov, N. G. & Levich, A. P., 1999: The Nitrogen : Phosphorus ratio as a factor regulating phytoplankton community structure. - Arch. Hydrobiol. 146: 3-22.
Cocquyt, C. & Vyverman, W., 2005: Phytoplankton in Lake Tanganyika: A comparison of community composition and biomass off Kigoma with previous studies 27 years ago. - J. Great Lakes Res. 31: 535-546.
Coulter, G. W., 1991: Lake Tanganyika and its life. - Oxford University Press, London.
Coulter, G. W. & Spigel, R. H., 1991: Hydrodynamics. - In: Coulter, G. W. (ed.): Lake Tanganyika and its life. - Oxford University Press, London, pp. 49-75.
De Wever, A., 2006: Spatio-temporal dynamics in the microbial food web in Lake Tanganyika. - PhD-thesis, Ghent University.
De Wever, A., Muylaert, K., Van Der Gucht, K., Pirlot, S., Cocquyt, C., Descy, J. P., Plisnier, P. D. & Vyverman, W., 2005: Bacterial community composition in Lake Tanganyika: Vertical and horizontal heterogeneity. - Appl. Environ. Microbiol. 71: 5029-5037.
Del Giorgio, P. A. & Gasol, J. M., 1995: Biomass distribution in fresh-water plankton communities. - Amer. Nat. 146: 135-152.
Descy, J.-P., Hardy, M.-A., Sténuite, S., Pirlot, S., Leporcq, B., Kimirei, I., Sekadende, B., Mwaitega, S. R. & Sinyenza, D., 2005: Phytoplankton pigments and community composition in Lake Tanganyika. - Freshwat. Biol. 50: 668-684.
Dubinsky, Z. & Berman-Frank, I., 2001: Uncoupling primary production from population growth in photosynthesizing organisms in aquatic ecosystems. - Aquat. Sci. 63: 4-17.
Fahnenstiel, G. L., Krause, A. E., Mccormick, M. J., Carrick, H. J. & Schelske, C. L., 1998: The structure of the planktonic food-web in the St. Lawrence Great Lakes. - J. Great Lakes Res. 24: 531-554.
Foissner, W., Berger, J. & Schaumburg, J., 1999: Identification and ecology of limnetic plankton ciliates. - Informationsberichte des Bayer. Landesamtes für Wasserwirtschaft, Munich.
Gasol, J. M., Del Giorgio, P. A. & Duarte, C. M., 1997: Biomass distribution in marine planktonic communities. - Limnol. Oceanogr. 42: 1353-1363.
Glover, H. E., Keller, M. D. & Spinrad, R. W., 1987: The effects of light quality and intensity on photosynthesis and growth of marine eukaryotic and prokaryotic phytoplankton clones. - J. Exp. Mar. Biol. Ecol. 105: 137-159.
Greenberg, A. E., American Public Health Association, American Water Works Association & Water Environment Federation (eds.), 1992: Standard methods for the examination of water and wastewater, 18th ed. - American public health association, Maryland.
Hahn, M. W., 2003: Isolation of strains belonging to the cosmopolitan Polynucleobacter necessarius cluster from freshwater habitats located in three climatic zones. - Appl. Environ. Microbiol. 69: 5248-5254.
Hecky, R. E. & Kling, H. J., 1981: The phytoplankton and protozooplankton of the euphotic zone of Lake Tanganyika - species composition, biomass, chlorophyll content, and spatiotemporal distribution. - Limnol. Oceanogr. 26: 548-564.
Jasser, I., 2002. Autotrophic picoplankton (APP) in four lakes of different trophic status: Composition, dynamics and relation to phytoplankton: - Pol. J. Ecol. 50: 341-355.
Kurki, H., Vuorinen, I., Bosma, E. & Bwebwa, D., 1999: Spatial and temporal changes in copepod zooplankton communities of Lake Tanganyika. - Hydrobiologia 407: 105-114.
Lacroix, G., Lescher-Moutoue, F. & Bertolo, A., 1999: Biomass and production of plankton in shallow and deep lakes: Are there general patterns? - Ann. Limnol. 35: 111-122.
Langenberg, V. T., 1996: The physical limnology of Lake Tanganyika August - December 1995. FAO/FINNIDA research for the management of the fisheries of Lake Tanganyika. - GCP/RAF/271/FIN-TD/54 (En): 61 p.
Langenberg, V. T., Sarvala, J. & Roijackers, R., 2003: Effect of wind induced water movements on nutrients, chlorophyll-a, and primary production in Lake Tanganyika. - Aquat. Ecosyst. Health Manage. 6: 279-288.
Lindqvist, O. V., Mölsä, H. & Sarvala, J. E., 1999: 'Lake Tanganyika research: Summary of the scientific programme 1992-98.' FAO/FINNIDA research for the management of the fisheries of Lake Tanganyika. - GCP/RAF/271/FIN-TD/94(En): 110p.
MacIsaac, E. A. & Stockner, J. G., 1993: Enumeration of phototrophic picoplankton by autofluorescence microscopy. - In: Kemp, P. F., Sherr, B. F., Sherr, E. B. & Cole, J. J. (eds): Handbook of methods in aquatic microbial ecology. - Lewis Publishers, Boca Raton, pp. 187-197.
Menden-Deuer, S. & Lessard, E. J., 2000: Carbon to volume relationships for dinoflagellates, diatoms, and other protist plankton. - Limnol. Oceanogr. 45: 569-579.
Mölsä, H., Reynolds, J. E., Coenen, E. J. & Lindqvist, O. V., 1999a: Fisheries research towards resource management on Lake Tanganyika. - Hydrobiologia 407: 1-24.
Mölsä, H., Salonen, K. & Sarvala, J., 1999b: Results of the LTR's 20th multi-disciplinary cruise. -GCP/RAF/271/FIN-TD/93(En): 102 p.
Montagnes, D. J. S. & Lynn, D. H., 1993: A quantitative protargol stain (QPS) for ciliates and other protists. - In: Kemp, P. F., Sherr, B. R. Sherr, E. B. & Cole, J. J. (eds): Handbook of methods in aquatic microbial ecology. - Lewis Publishers, Boca Raton, p. 229-240.
Moore, L. R., Goericke, R. & Chisholm, S. W., 1995: Comparative physiology of Synechococcus and Prochlorococcus - influence of light and temperature on growth, pigments, fluorescence and absorptive properties. - Mar. Ecol. Prog. Ser. 116: 259-275.
Naithani, J., Deleersnijder, E. & Plisnier, P.-D., 2003: Analysis of wind-induced thermocline oscillations of Lake Tanganyika. - Environ. Fluid Mech. 3: 23-39.
O'Reilly, C. M., Alin, S. R., Plisnier, P.-D., Cohen, A. S. & McKee, B. A., 2003: Climate change decreases aquatic ecosystem productivity of Lake Tanganyika, Africa. - Nature 424: 766-768.
Pernthaler, J., Posch, T., Šimek, K., Vrba, J., Pernthaler, A., Glockner, F. O., Nubel, U., Psenner, R. & Amann, R., 2001: Predator-specific enrichment of Actinobacteria from a cosmopolitan freshwater clade in mixed continuous culture. - Appl. Environ. Microbiol. 67: 2145-2155.
Pirlot, S., 2006: The bacterioplankton in Lake Tanganyika: Biomass, production & trophic fate. - PhD-thesis, FUNDP Namur.
Pirlot, S., Vanderheyden, J., Descy, J. P. & Servais, P., 2005: Abundance and biomass of heterotrophic microorganisms in Lake Tanganyika. - Freshwat. Biol. 50: 1219-1232.
Pirlot, S., Vanderheyden, J., Servais, P. & Descy, J. P., 2006: Abundance and biomass of heterotrophic microorganisms in Lake Tanganyika (vol 50, pg 1219, 2005). - Freshwat. Biol. 51: 984-985.
Plisnier, P.-D., Chitamwebwa, D., Mwape, L., Tshibangu, K., Langenberg, V. & Coenen, E., 1999: Limnological annual cycle inferred from physical-chemical fluctuations at three stations of Lake Tanganyika. - Hydrobiologia 407: 45-58.
Plisnier, P.-D. & Coenen, E. J., 2001: Pulsed and dampened annual limnological fluctuations in Lake Tanganyika. - In: Munawar, M. & Hecky, R. E. (eds): The Great Lakes of the world (GLOW): Food-web, health and integrity. Ecovision world monograph series. - Backhuys Publishers, Leiden, pp. 83-96.
Porter, K. G. & Feig, Y. S., 1980: The use of DAPI for identifying and counting aquatic microflora. - Limnol. Oceanogr. 25: 943-948.
Putt, M. & Stoecker, D. K., 1989: An experimentally determined carbon-volume ratio for marine oligotrichous ciliates from estuarine and coastal waters. - Limnol. Oceanogr. 34: 1097-1103.
Samuelsson, K., Berglund, J., Haecky, P. & Andersson, A., 2002: Structural changes in an aquatic microbial food web caused by inorganic nutrient addition. - Aquat. Microb. Ecol. 29: 29-38.
Sarvala, J., Salonen, K., Järvinen, M., Aro, E., Huttula, T., Kotilainen, P., Kurki, H., Langenberg, V., Mannini, P., Peltonen, A., Plisnier, P.-D., Vuorinen, I., Molsa, H. & Lindqvist, O. V., 1999: Trophic structure of Lake Tanganyika: Carbon flows in the pelagic food web. - Hydrobiologia 407: 149-173.
Schallenberg, M. & Burns, C. W., 2001: Tests of autotrophic picoplankton as early indicators of nutrient enrichment in an ultra-oligotrophic lake. - Freshwat. Biol. 46: 27-37.
Sherr, E. B. & Sherr, B. F., 1993: Preservation and storage of samples for enumeration of heterotrophic protists, - In: Kemp, P. F., Sherr, B. F., Sherr, E. B. & Cole, J. J. (eds): Handbook of methods in aquatic microbial ecology. - Lewis Publishers, Baco Raton, pp. 207-212.
Simon, M., Cho, B. C. & Azam, F., 1992: Significance of bacterial biomass in lakes and the ocean - comparison to phytoplankton biomass and biogeochemical implications. - Mar. Ecol. Prog. Ser. 86: 103-110.
Simpson, J. H., Tett, P. B., Argoteespinoza, M. L., Edwards, A., Jones, K. J. & Savidge, G., 1982: Mixing and phytoplankton growth around an island in a stratified sea. - Cont. Shelf Res. 1: 15-31.
Suttle, C. A. & Harrison, P. J., 1988: Ammonium and phosphate-uptake rates, N-P supply ratios, and evidence for N-limitation and P-limitation in some oligotrophic lakes. - Limnol. Oceanogr. 33: 186-202.
Uthermöhl, H., 1931: Neue Wege in der quantitativen Erfassung des Planktons. - Verh. Internat. Verein. Limnol. 5: 567.
Verburg, P., Hecky, R. E. & Kling, H., 2003: Ecological consequences of a century of warming in Lake Tanganyika. - Science 301: 505-507.
Vuorio, K., Nuottajärvi, M., Salonen, K. & Sarvala, J., 2003: Spatial distribution of phytoplankton and picocyanobacteria in Lake Tanganyika in March and April 1998. - Aquat. Ecosyst. Health Manage. 6: 263-278.
Weisse, T., 1991: The microbial food web and its sensitivity to eutrophication and contaminant enrichment - a cross-system overview. - Internat. Rev. ges. Hydrobiol. 76: 327-338.
Wetzel, R. G., 2001: Limnology, lake and river ecosystems, Third ed. - Academic Press, San Diego.
Yasindi, A. W. & Taylor, W. D., 2003: Abundance, biomass and estimated production of planktonic ciliates in Lake Victoria and Malawi. -Aquat. Ecosyst. Health Manage. 6: 289-297.
Zimmerman, R. C., Kremer, J. N. & Dugdale, R. C., 1987: Acceleration of nutrient-uptake by phytoplankton in a coastal upwelling ecosystem - a modeling analysis. - Limnol. Oceanogr. 32: 359-367.