Wyniki wyszukiwania - AGRO

1

Finishing treatment of liquid manure in ponds

100%

Roginski W.

Annals of Warsaw Agricultural University. Land Reclamation

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1987

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tom 23

2

Changes in the structure of planktonic rotifers in some ponds of the Poleski National Park during the years 1997 and 2009

88%

Demetraki-Paleolog A.

Teka Komisji Ochrony i Kształtowania Środowiska Przyrodniczego

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2013

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tom 10

3

Effects of salinity on species diversity of rotifers in anthropogenic water bodies

88%

Bielanska-Grajner I., Cudak A.

Polish Journal of Environmental Studies

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2014

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tom 23

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nr 1

This study investigated the influence of anthropogenic salinization on planktonic rotifer communities and traced changes in their diversity along a salinity gradient. The experiment was conducted in 14 ponds of varied anthropogenic origin located in Poland’s Silesian Upland. On the basis of the mean concentration of total dissolved solids (TDS) and principal component analysis (PCA), the water bodies were divided into 4 groups in respect to salinity: freshwater ponds, TDS < 500 mg·dm⁻³; subsaline ponds, TDS = 500-3,000 mg·dm⁻³; hyposaline ponds, TDS = 3,000-20,000 mg·dm⁻³; and mesosaline ponds, TDS = 20,000-50,000 mg·dm⁻³. An increase in salinity resulted in a decrease of rotifer species richness and diversity. Salinity also had a negative effect on mean rotifer density. The highest densities were recorded in freshwater and hyposaline ponds, whereas the lowest were in subsaline and mesosaline waters. Rotifer species richness differed significantly at 2 salinity thresholds: TDS = 500 mg·dm⁻³ and 20,000 mg·dm⁻³.

4

Biodegradation of polylactide in natural fresh water

88%

Heimowska A., Morawska M., Bocho-Janiszewska A.

Towaroznawcze Problemy Jakości. Polskie Towarzystwo Towaroznawcze

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2015

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nr 4

5

Paramecium aurelia species complex in a natural but newly reconstructed pond of the Botanical Garden of the Jagiellonian University in Krakow

88%

Przybos E., Komala Z.

Folia Biologica

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2000

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tom 48

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nr 3-4

6

The thermal balance equation as a method of predicting water surface temperature in carp ponds

88%

Pianko-Kluczynska K.

Geographia Polonica

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1998

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tom 71

7

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

Planktonic rotifers Rotatoria of Polesie National Park ponds

88%

Demetraki-Paleolog A.

Acta Agrophysica

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2002

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tom 68

8

Multiannual changes in assemblages of planktonic rotifers in ponds and of the Poleski National Park

75%

Demetraki-Paleolog A., Adamczuk M., Sender J.

Teka Komisji Ochrony i Kształtowania Środowiska Przyrodniczego

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2014

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tom 11

9

Studies on sustainability of planktonic rotifer assemblages in select national park ponds and wetland reservoirs

75%

Demetraki-Paleolog A.

Polish Journal of Environmental Studies

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2014

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tom 23

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nr 1

One of the most interesting though little-known water ecosystems of Łęczyńsko-Włodawskie Lakeland is its small water bodies – ponds and wetland reservoirs. Three ponds and three wetland reservoirs were studied in 2008 and then again in 2012 and 2013 to examine their rotifer assemblages. While watching the changes occurring in the plankton during periods of 4 and 5 years, we were trying to find out which of the reservoirs were inhabited by more sustainable rotifer assemblages and which ecological qualities were more closely related to such sustainability. The results of the studies revealed different, though insignificant, variability in the ecological properties of planktonic rotifer assemblages, particularly in the ponds, as well as they suggested some relationship between the sustainability of planktonic assemblages and their species diversity.

10

Invertebrates of three small ponds located in stream-pond system

75%

Czerniawski R., Popko R., Krepski T., Domagala J.

Teka Komisji Ochrony i Kształtowania Środowiska Przyrodniczego

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2013

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tom 10

11

Low recapture rate in PIT marked urban populations of the common toad

75%

Mazgajska J., Mazgajski T. D.

Polish Journal of Ecology

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2016

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tom 64

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nr 4

Individual marking is necessary for determining various elements of species ecology, but toe-clipping — a method frequently used in amphibian studies, is recently being questioned. Three water bodies (of 0.3 to 1.5 ha in size) used by common Bufo bufo for breeding, located within a large city (Warsaw, Central Poland), were chosen for the study. Captured toads had Passive Integrated Transponders (PIT) subcutaneously implanted under laboratory conditions. Marked toads were searched in consecutive breeding seasons. The recapture rate of males in particular ponds was up to 13% — much lower than in other studies carried out in non-urban habitats. 77% of re-trapped individuals were found in the next season after tagging. There were no differences in the frequency of re-trapped individuals in relation to the toe-clipping treatment, as some marked individuals had part of the toe (two phalanges) clipped for skelotochronological analyses. An individual from this group was observed to have regenerated the clipped toe after one year. We did not find any indication of better body condition among the re-trapped individuals when comparing them to the marked toads at the time they were first captured. The important advantage of PIT tagging is the fact that all individuals are marked in the same way and their handling is similar. This makes it possible to compare various demographic parameters (growth rate, survival etc.). In addition, the number of animals that can be permanently marked using PITs is several times higher than through the use of codes resulting from the clipping of fingers and toes.

12

Occurrence of microcystis aeruginosa Kutz. water blooms in a eutrophic pond of Chidambaram taluk

75%

Elayaraj B., Selvaraju M.

International Letters of Natural Sciences

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2015

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tom 47

The occurrence and abundance of Microcystis aeruginosa were monitored monthly in eutrophic pond water of Ilamiyakkinar temple pond from July 2014 to June 2015. Some environmental factors such as water temperature, pH, free carbon-dioxide (FCO2), total alkalinity, Dissolved oxygen (DO2), biological oxygen demand (BOD), nitrate (NO2-N) and phosphate are recorded and their relationship with the bloom formation by Microcystis aeruginosa were discussed. The initiation and persistence of Microcystis aeruginosa were founded to be triggered by relatively high water temperature (24 °C to 36.5 °C), pH (7.3 to 8.72) and NO2-N concentration.

13

Production of the two-years old carp in ponds supplied with biologically pre-treated municipal sewage

75%

Kuczynski M., Kolasa-Jaminska B., Lewkowicz S., Pilarczyk M.

Acta Scientiarum Polonorum. Piscaria

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2003

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tom 02

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nr 1

14

The role of mid-field ponds in the storage of dissolved organic compounds [DOC] and heavy metals

75%

Zyczynska-Baloniak I., Jaskulska R., Szteke B.

Polish Journal of Environmental Studies

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1996

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tom 05

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nr 4

This paper presents a study on the concentration of dissolved organic carbon (DOC) and humic substances (HS) in the waters of two different small ponds located in agricultural environments. DOC and HS content is high in the water of pond R adjacent to cultivated fields (DOC 42.0 mg/1, HS 34.2 mg/1) and in pond H surrounded by a wide belt of meadow and settled by macrophytes (DOC 48.0 mg/1, HS 37.2 mg/1). The total amounts of cations and cations bounded with humic substances dissolved in water of these two ponds have been analyzed. These studies indicate that small field ponds are a good biogeochemical barrier controlling organic compound migration with water from arable fields into water reservoirs.

15

Reproduction of tench Tinca tinca [L.1758] in spawning ponds

75%

Perez-Regadera J. J., Velasco Gemio R.

Polskie Archiwum Hydrobiologii

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1995

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tom 42

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nr 1-2

16

Paramecium biaurelia and other accompanying zooplankton in the ponds of the Botanical Garden in Krakow

75%

Komala Z., Przybos E.

Folia Biologica

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1999

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tom 47

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nr 1-2

17

Hyphomycetes developing on water plants and bulrushes in fish ponds

75%

Orlowska M., Lengiewicz I., Suszycka M.

Polish Journal of Environmental Studies

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2004

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tom 13

|

nr 6

The importance of the Hyphomycetes Fungi Imperfecti stems from their crucial role in purifying both flowing and standing waters, which can balance the effects of eutrophication. The purpose of the present work was to analyze Hyphomycetes populations in the 11 fish ponds, each with different leaves and dead plant composition. The research was carried out in autumn 2001 and spring 2002. We investigated water samples from fish farms in Northeastern Poland. In breeding the fungi some water plants and bulrushes from the ponds were used. We discovered 79 species of Fungi Imperfecti. Eight of which appeared to be new to Northeastern Poland. In addition, pathogenic species: Alternatria sp. and Fusarium sp. were also found. The most optimum conditions for the Hyphomycetes representatives were found in the ponds overgrown by numerous water plants and bulrushes. It confirms that saprophytic Fungi Imperfecti play an active role in decomposition of dead plants, and purification of each pond’s water. Keywords: Hyphomycetes fungi, plants, ponds.

18

Engineering and financing of the working assets in fishery enterprises

75%

Worniallo J.

Archives of Polish Fisheries

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2000

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tom 08

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nr 2

19

Comparison of phytoplankton and autotrophic picoplankton populations from a pond's surface and subsurface waters over 24-hour period

75%

Marshall H. G., Burchardt L., Wilk-Wozniak E.

Oceanological and Hydrobiological Studies

|

2005

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tom 34

|

nr Suppl.3

20

Occurrence of Diplostomum sp.in the Siberian sturgeon Acipenser baeri Brandt - preliminary study

75%

Dzika E., Kolman H., Kolman R.

Wiadomości Parazytologiczne

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1998

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tom 44

|

nr 3

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