List of Participants V

Preface: Two decades of international workshops and research in
aquatic microbial ecology (M. SIMON) VIII

Identification of microbes by novel techniques

ERNST, A., POSTIUS,C. & BÖGER, P.: Glycosylated surface proteins
reflect genetic diversity among Synechococcus species of Lake
Constance (with 3 figures and 1 table) 1-6

DONNER, G., SCHWARZ, K., HOPPE, H.-G. & MUYZER, G.: Profiling the
succession of bacterial populations in pelagic chemoclines (with 6
figures) 7-14

WITTKE, R., PEWTER, S. & KLEINER, D.: Isolation, identification and
characterisation of bacterial strains capable of heterotrophic sulfur
oxidation (with 1 figure and 3 tables) 15-20

Microbial food webs

ROTHHAUPT, K.O. & GÜDE, H.: Influence of metazoan zooplankton on the
microbial community before and after the onset of the spring
clear-water phase in Lake Constance (Bodensee) (with 5 figures and 2
tables) 21-30

RECHE, I., PUGNETTI, A., CRUZ-PIZZARO, L. & CARRILLO, P.: Relationship
between bacteria and phytoplankton in a high-mountain lake: Importance
of the organic carbon released by pelagic algae for bacterioplankton
(with 4 figures and 2 tables) 31-38

HOPPE, H.G., GOCKE, K. & ALCANTARA, F.: Shifts between autotrophic and
heterotrophic processes in a tidal lagoon (Ria de Aveiro, Portugal)
(with 3 figures and 3 tables) 39-52

MEILI, M., KLING, G.W., FRY, B., BELL, R.T. & AHLGREN, I.: Sources and
partitioning of organic matter in a pelagic microbial food web
inferred from the isotopic composition (SAC and St5N) of zooplankton
species (with 1 figure and 1 table) 53- 61

MÜLLER, H.: Selective feeding of a freshwater chrysomonad,
Paraphysomonas sp., on chroococcoid cyanobacteria and nanoflagellates
(with 3 figures and 3 tables) 63-71

CHRISTOFFERSEN, K., BERNARD, C. & EKEBOM, J.: A comparison of the
ability of different heterotrophic nanoflagellates to incorporate
dissolved macromolecules (with 5 figures and 2 tables) 73-84

ZIMMERMANN, H. & KAUSCH, H.: Microaggregates in the Elbe Estuary: structure
and colonisation during spring (with 5 figures) 85-92

CALLERI, C., BERTONI, R., AMICUCCI, E., PINOLINI, M.L. & JASSER, I.:
Growth rates of freshwater picocyanobacteria measured by FDC: problems
and potentials for the estimation of picoplankton organic carbon
synthesis (with 3 figures and 4 tables) 93-103

COMIC, L., RANKOVIC, B. & BARBIC, F.: Community of fungi in Gruza
Reservoir, Yugoslavia (with 2 figures and 2 tables) 105-111

Bacterioplankton growth and nutrient dynamics

BITTL, T. & BABENZIEN, H.D.: Microbial activity in an artificially
divided acidic lake (with 7 figures and 2 tables) 113-121

EDLING, H. & TRANVIK, L.J.: Effects of pH on p-glucosidase activity
and availability of DOC to bacteria in lakes (with 4 figures and 1
table) 123-132

BERTILSSON, S. & ALLARD, B.: Sequential photochemical and microbial
degradation of refractory dissolved organic matter in a humic
freshwater system (with 4 figures) 133-141

SALA, M.M. & GÜDE, H.: Influence of algae and crustacean zooplankton
on patterns of microbial hydrolytic enzyme activities - an
experimental approach (with 5 figures and 5 tables) 143-154

SODAS W. & GÜDE, H.: Evaluation of dissolved DNA and nucleotides as
potential sources of phosphorus for plankton organisms in Lake
Constance (with 4 figures) 155-162

BERTONI, R., CALLIERI, C. & CAMPAGNOLI, A.: Coupling of organic carbon
synthesis and mineralisation from in situ variations in DOC and POC
(with 2 figures and 2 tables) 163-170

BANERAS, L. & GARCIA-GIL, L.J.: Role of photosynthetic microbial
populations in the phosphorus exchange through the oxic-anoxic
boundary in a meromictic eutrophic lake (with 9 figures) 171-181

VILA, X., DOKULIL, M., GARCIA-GIL, L.J., ABELLA, C.A., BORREGO, C.M. &
BANERAS, L.: Composition and distribution of phototrophic
bacterioplankton in the deep communities of several central European
lakes: The role of light quality (with 8 figures and 1 table) 183-196

Microbes and their activities in sediments

GOEDKOOP, W. & TORNBLOM, E.: Seasonal fluctuations in the benthic
bacterial production and abundance in Lake Erken: The significance of
major abiotic factors and sedimentation events (with 2 figures and 1
table) 197-205

TORNBLOM, E.: Bacterial production and total community metabolism in
sediments of a eutrophic lake (with 4 figures and 2 tables) 207-216

TULONEN, T., KANKAALA, P. & OIALA, A.: Production of bacteria in the
littoral zone of two experimental mesohurnic ponds (with 3 figures and
3 tables) 217-225

LEE, G. H. , CHOI, G.G. & BAEK, C.B . : Distribution of
aerobic/anaerobic saprophytic bacteria in the sediments of the Yellow
Sea near Kunsan, Korea (with 4 figures) 227-232

JEONG, W.H., MIN, S.H. & AHN, T.Y.: Nitrate transformation in the
sediment of Lake Soyang, Korea (with 6 tables) 233-240

SASS, H., CYPIONKA, H. & BABENZEN, H.D.: Sulfate-reducing bacteria
from the oxic sediment layers of the oligotrophic Lake Stechlin (with
3 figures and 1 table) 241-246

BABENZEN, H.D. & SASS, H.: The sediment-water interface - habitat of
the unusual bacterium Achromatium oxaliferum (with 3 figures) 247-251

CASPER, P.: Methane production in littoral and profundal sediments of
an oligotrophic and a eutrophic lake (with 4 figures and 2 tables)
253-259

PEINE, A. & PEIFFER, S.: Neutralisation processes in acid mine lake
sediments (with 3 figures and 1 table) 261-267

BOETIUS, A. & LOCHTE, K.: High proteolytic activities of deep-sea
bacteria from oligotrophic polar sediments (with 3 figures and 1
table) 269-276