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1

Physical and chemical characteristics of water in selected small gardens ponds

100%
Plaska W., Rechulicz J., Tarkowska-Kukuryk M.
Teka Komisji Ochrony i Kształtowania Środowiska Przyrodniczego
|
2014
|
tom 11
2

Invertebrates of three small ponds located in stream-pond system

100%
Czerniawski R., Popko R., Krepski T., Domagala J.
Teka Komisji Ochrony i Kształtowania Środowiska Przyrodniczego
|
2013
|
tom 10
3

Morphological variation of the ciliate Trichodina pediculus Ehrenberg, 1838. III. Parasitizing on crucian carp (Carassius carassius (L.) from small ponds in Kortowo (Olsztyn)

84%
Kazubski S. L.
Acta Protozoologica
|
1991
|
tom 30
|
nr 3-4
4

Morphological variation in a ciliate, Trichodina reticulata Hirschmann et Partsch, 1955 (Peritrichida), in tadpoles from small ponds

84%
Kazubski S. L.
Acta Protozoologica
|
1988
|
tom 27
|
nr 3-4
5
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Influence of anthropopression on concentration of biogenic compounds in water of small ponds in farmland

84%
Galczynska M., Kot M.
Journal of Elementology
|
2010
|
tom 15
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nr 1
53-63
A rapidly diminishing number and degradation of water ponds cause many negative effects in the structure of agricultural ecosystems, by limiting surface retention and increasing migration of chemical compounds from the basin. The goal of this research was to find the influence of anthropopression on the chemical composition of water in field ponds. Analysis of some chemical and physical parameters was carried out on water samples collected once a month from 5 field ponds located in the District of Pyrzyce, Commune of Zabowo, between March and October 2004. The five water ponds differed with respect to the spatial development of their surroundings and their degradation. The concentration of N-NH4+ N-NO2- i N-NO3- oraz PO43- were measured according to the Polish Standards. The level of oxygen, temperature and water pH were measured immediately after collecting each sample of water. The analyzed field ponds were different in respect of the degree of degradation processes. What was characteristic of the five ponds was a large variation in concentrations of biogenic compounds in water, depending on the form of anthropopression and vegetation in and around the ponds. The high level of PO43- and N-NH4+ in water and the succession of water plants prove that ponds 2, 3 and 4 are highly eutrophicated. Due to the extremely high concentration of PO43- in the water, field pond 2, located near a former state farm, can be classified as hypertrophic. This pond also had the biggest oxygen deficit.
6
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Changes in the chemical properties of water in a small pond in vertical profiles

84%
Szyperek U.
Journal of Elementology
|
2007
|
tom 12
|
nr 4
363-373
The study to determine thermal-oxygen changes and chemical properties of water in a flow-through pond was conducted between April 2004 and March 2005 in three vertical profiles. The study involved the determination of electrolytic conductivity and pH reaction of water as well as the content of nitrate nitrogen and ammonium nitrogen, total phosphorus and sulphates. Thermal stratification was not observed in the investigated pond with the maximum depth of 2.45 m, and oxygen content was represented by a clinograde curve. Biogenic element concentrations in the pond were determined by depth in the vertical profile, and they were subject to seasonal variation. The highest concentrations of mineral substances in water were reported in the bottom layers of the pond. Although the investigated pond is a flow-through water body, it accumulates biogenic elements.
7

Assessment of water retention capacity of small ponds in Wyskoc agricultural-forest catchment in western Poland

84%
Juszczak R., Kedziora A., Olejnik J.
Polish Journal of Environmental Studies
|
2007
|
tom 16
|
nr 5
685-695
The potential increase of water retention capacity in the ponds of the Wyskoć catchment in western Poland is estimated and presented. only water bodies having area smaller than 2 ha were taken into con­sideration. There are 638 ponds in the Wyskoć catchment, from among wetland and grassland ponds are the most numerous (they both constitute about 59% of all water bodies). The analyzed ponds retain above 562x103 m3 of water. However, the amount of retained water could be increased by 886x103 m3 (in relation to current pond retention) if pond retention is considered and by other 880x103 m3 in case of groundwater retention in areas adjoining. The increase of water level in ponds from 0.5 to 1.5 m due to damming water in the outflow or retention of drainage water so far unproductively discharged out of the catchment area was considered as a potential source of retained water. The highest relative increase of water retention in ponds and in adjoining areas could be obtained in midfield and farmstead ponds with the smallest aver­age area. However, for the smallest water bodies with surface area less than 0.5 ha, the potential relative increase of groundwater retention is higher than the retention increase in the pond itself. This means that the smaller the pond and the smaller value of current water body retention, the bigger relative increase of groundwater retention in the areas adjacent to pond in relation to the increase of the water level in pond. The results proved that the small ponds could be very valuable elements of a landscape influencing water regime of agriculturally managed areas. They should be protected and used for water storage. The pre­sented method could be useful to fast, easy and cheap macro-scale estimation of potential water capacity of water bodies.
8

First records of Isohypsibius pushkini Tumanov, 2003 (Tardigrada, Eutardigrada, Hypsibiidae) from Poland

67%
Kaczmarek L., Goldyn B., Czyz M., Michalczyk L.
Biological Letters
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2010
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tom 47
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nr 2
9

The effect of catchment area management on biogenic element concentrations in the water of small ponds

67%
Szyperek U.
Oceanological and Hydrobiological Studies
|
2010
|
tom 39
|
nr 3
10

Controlled reproduction of European catfish [Silurus glanis L.] in small ponds without artificial nests

67%
Stevic I., Opacak A., Bogut I.
Polskie Archiwum Hydrobiologii
|
1997
|
tom 44
|
nr 1-2
11

Efficiency of the small pond as a biogeochemical barrier to decrease different kinds of nitrogen in the agricultural landscape

67%
Szajdak L., Zyczynska-Baloniak I., Szczepanski M.
Polish Journal of Soil Science
|
2006
|
tom 39
|
nr 1
The study included the measurement of the concentrations of N-NO₃⁻, N-NH₄⁺and organic nitrogen in the ground water of cultivated fields, and in the water of the subdrain as well as in the water of a small pond. The investigation included different forms of nitrogen in the precipitation and the run-off water. The water of the subdrain was characterized by a relatively richness in nitrates. The highest concentrations of nitrates were measured in the water of the subdrain. However, N-NH₄⁺ dominated in the precipitation water. Moreover, the contents of organic nitrogen were the highest in the water of the run-off. It was observed that 57% of the total amount of nitrogen supplies to the pond remained in a dissolved form. In general, the small pond showed a high decrease in different forms of nitrogen and showed a high degree of biological transformation. Evidently, the small pond of the agricultural landscape functions as a very efficient biogeochemical barrier.
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