Wyniki wyszukiwania

1

Zooplankton changes during the year in Admiralty Bay [ February 1990 - January 1991 ]

100%

Menshenina L., Rakusa-Suszczewski S.

Polskie Archiwum Hydrobiologii

|

1992

|

tom 39

|

nr 1

2

Toxic effect of norharmane on a freshwater plankton community

86%

Mohamed Z. A.

International Journal of Ecohydrology and Hydrobiology

|

2013

|

tom 13

|

nr 3

3

Participation of MEM plus bacteria in the bacterioplankton community in Ustka harbor, the River Slupia estuary, Southern Baltic Sea

86%

Perlinski P., Skorczewski P., Zdanowicz M., Mudryk Z.

European Journal of Biological Research

|

2015

|

tom 05

|

nr 2

4

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

Microbial plankton communities in the coastal Southeastern Black Sea: biomass, composition and trophic interactions

72%

Aytan U., Feyzioglu A. M., Valente A., Agirbas E., Fileman E. S.

Oceanologia

|

2018

|

tom 60

|

nr 2

5

Dinoflagellate cyst distribution in recent sediments along the South-East coast of India

72%

Narale D. D., Patil J. S., Anil A. C.

Oceanologia

|

2013

|

tom 55

|

nr 4

6

Diel changes in the plankton communities of the ecotone zone of a peat mat of the dystrophic lake Glodne Jeziorko [Drawienski National Park]

72%

Kuczynska-Kippen N., Klimaszyk P., Szelag-Wasielewska E.

Acta Agrophysica

|

2006

|

tom 07

|

nr 2[133]

7

Effect of organic phosphorus and nitrogen enrichment of mesotrophic lake water on dynamics and diversity of planktonic microbial communities - DNA and protein case studies [mesocosm experiments]

58%

Chrost R. J., Adamczewski T., Kalinowska K., Skowronska A.

Polish Journal of Microbiology

|

2009

|

tom 58

|

nr 2

163-180

Effects of mesotrophic lake water enrichment with organic phosphorus and nitrogen substrates (DNA and model protein, bovine serum albumin - BSA) on dynamics and diversity of natural microbial communities (bacteria, heterotrophic nanoflagellates, ciliates) were studied in mesocosm experiments. Simultaneous enrichment with DNA and BSA strongly increased the abundance and biomass of all studied groups of microorganisms and induced changes in their morphological and taxonomic structure. The increased participation of large heterotrophic nanoflagellates cells (larger than 10 μm) in their total numbers and shifts in taxonomic and trophic Structure of the ciliates, from algivorous to small bacterivorous, species were observed. Grazing caused changes in bacterial size distribution in all enriched mesocosms. Large (10-50 μm) filamentous bacteria significantly contributed to the total bacterial numbers and biomass. Pronounced increase in populations of (β- and γ-Proteobacteria was found in lake water enriched with organic P and N sources, whereas α-Pmteobacteria did not change markedly in the studied mesocosms. DNA additions stimulated the rates of bacterial secondary production. BSA shortened the rates of bacterial biomass turnover in lake water. Relatively high and constant (~ 30%) percentage contribution of active bacteria (MEM+) in two mesocosms enriched with DNA and DNA+BSA suggested the important role of nucleic acids as a source of phosphorus for bacterial growth, activity and production. Numerous and statistically significant correlations between bacteria and protists indicated the direct and selective predator-prey relationship.

8

Long-term changes in some chemical and biological charakteristics of the Grosnica Reservoir water, Serbia

58%

Ostojic A., Topuzovic M., Comic L., Curcic S.

Polish Journal of Environmental Studies

|

2009

|

tom 18

|

nr 4

681-691

The Grošnica Reservoir is the oldest water-supply reservoir in Serbia. Investigations carried out monthly during the two-year period of 1996-98 revealed certain changes of some chemical and biological characteristics in relation to investigations performed almost 50 years earlier. Changes were noticed in composition of the plankton community and in some physical and chemical parameters. Although it could be expected that eutrophication would occur in time, the results do not confirm it. Total P, Secchi disk, and chlorophyll α values indicate that the Grošnica Reservoir belongs to the category of mesotrophic waters. The noticed differences can be attributed to raising of the dam's height and increasing the lake’s volume, resulting in reduction of the influence of turbid currents, as well as to forestation of the reservoir's banks.

9

Decadal fluctuations in North Atlantic water inflow in the North Sea between 1958-2003: impacts on temperature and phytoplankton populations

58%

Leterme S. C., Pingree R. D., Skogen M. D., Seuront L., Reid P. C., Attrill M. J.

Oceanologia

|

2008

|

tom 50

|

nr 1

59-72

The circulation of Atlantic water along the European continental slope, in particular the inflow into the North Sea, influences North Sea water characteristics with consequent changes in the environment affecting plankton community dynamics. The long-term effect of fluctuating oceanographic conditions on the North Sea pelagic ecosystem is assessed. It is shown that (i) there are similar regime shifts in the inflow through the northern North Sea and in Sea Surface Temperature, (ii) long-term phytoplankton trends are influenced by the inflow only in some North Sea regions, and (iii) the spatial variability in chemicophysical and biological parameters highlight the influence of smaller scale processes.

10

Zooplankton and zoobenthos development in ponds stocked with tench fry in mono- and polycultures with herbivorous fish

58%

Adamek Z., Sukop I.

Polskie Archiwum Hydrobiologii

|

1995

|

tom 42

|

nr 1-2

11

Changes in plankton communities of ponds stocked with fish and supplied with nutrients

58%

Witeska M.

Acta Hydrobiologica

|

1995

|

tom 37

|

nr Suppl.1

Ograniczanie wyników

Zooplankton changes during the year in Admiralty Bay [ February 1990 - January 1991 ]

Toxic effect of norharmane on a freshwater plankton community

Participation of MEM plus bacteria in the bacterioplankton community in Ustka harbor, the River Slupia estuary, Southern Baltic Sea

Microbial plankton communities in the coastal Southeastern Black Sea: biomass, composition and trophic interactions

Dinoflagellate cyst distribution in recent sediments along the South-East coast of India

Diel changes in the plankton communities of the ecotone zone of a peat mat of the dystrophic lake Glodne Jeziorko [Drawienski National Park]

Effect of organic phosphorus and nitrogen enrichment of mesotrophic lake water on dynamics and diversity of planktonic microbial communities - DNA and protein case studies [mesocosm experiments]

Long-term changes in some chemical and biological charakteristics of the Grosnica Reservoir water, Serbia

Decadal fluctuations in North Atlantic water inflow in the North Sea between 1958-2003: impacts on temperature and phytoplankton populations

Zooplankton and zoobenthos development in ponds stocked with tench fry in mono- and polycultures with herbivorous fish

Changes in plankton communities of ponds stocked with fish and supplied with nutrients