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1
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Characteristic of heterotrophic bacteria inhabiting the Gulf of Gdansk

100%
Mudryk Z.
Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline
|
2003
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tom 06
2

The seasonal and short-term variability of zooplankton taxonomic composition in the shallow coastal area of the Gulf of Gdansk

100%
Bielecka L., Gaj M., Mudrak S., Zmijewska M. I.
Oceanological Studies
|
2000
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tom 29
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nr 1
3

Leeches (Clitellata: Hirudinida) of an upland stream: taxonomic composition in relation to habitat conditions

84%
Cichocka J., Jablonska-Barna I., Bielecki A., Buczynska E., Buczynski P., Stryjecki R., Pikula D.
Oceanological and Hydrobiological Studies
|
2015
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tom 44
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nr 2
4

Taxanomic composition of macroinvertebrates in the Liwiec River and its tributaries [cetral and eastern Poland] on the basis of chosen physical and chemical parameters of water and season

84%
Krolak E., Korycinska M.
Polish Journal of Environmental Studies
|
2008
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tom 17
|
nr 1
39-50
The taxonomic composition of macroinvertebrates in the Liwiec River and its tributaries situated in central and eastern Poland was studied during three seasons (spring, summer and autumn). Simultaneously, physical and chemical parameters of water were measured. Water parameters were different in each study period. Macroinvertebrates samples collected in summer and autumn were much more diversified than the samples collected in spring. In the spring samples a greater EPT diversity was observed, while in the samples collected in autumn Odonata, Coleoptera and Heteroptera were more diversified. The values of the BMWP-PL index were slightly higher for the summer and autumn samples than for the spring ones. Correlation between the concentration of oxygen in water and the number of individuals of Plecoptera and Trichoptera larvae was noted. The negative correlation between the values of BOD₅, the concentration of nitrate ions and conductivity, and the number of macroinvertebrate families was observed. A negative correlation also was noted between nitrate and phosphate ion concentrations and the number of individual insect larvae.
5

Differences in taxonomic composition of summer phytoplankton in two fjords of West Spitsbergen, Svalbard

84%
Wiktor J., Wojciechowska K.
Polish Polar Research
|
2005
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tom 26
|
nr 4
259-268
Fjords of West Spitsbergen are very dynamic in terms of hydrology. Here we tested whether the qualitative analysis of the taxonomic composition of phytoplankton may be useful as a fast method to assess the origin of the waters and whether it can give any additional information to hydrological data. Phytoplankton samples were collected along transects in Hornsund and Kongsfjord. Among total of 109 taxa identified, only 49 were common in both fjords. The assemblages in Hornsund implied that inflow of the cold waters of the Sørkapp Current had occurred some time before samples collection, while in Kongsfjord the taxonomic composition was typical for the summer and did not show any recent, unusual hydrological phenomenon. Concluding, the method can be useful in the surveys in which hydrological data are collected infrequently.
6

Psammon ciliates: diversity and abundance in hygroarenal of eutrophic lake

84%
Kalinowska K.
Polish Journal of Ecology
|
2008
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tom 56
|
nr 2
259-271
Taxonomic composition, spatial distribution and seasonal changes in abundance of ciliates were investigated in hygroarenal (the zone of the beach adjacent to lake littoral and affected by wave action) of the eutrophic Lake Mikołajskie (area 498 ha, max. depth 26 m, Masurian Lake District, Poland). The choosen beach amounted 10.8 × 1.5 m in size and 30 sampling points were distributed according to regular network 60 × 30 cm. Three sampling points were located in each of 10 sampling stations parallel to water line and at an increasing 0, 30, 60 cm distance from it). The small-scale distribution of ciliates was recognized from the set of 30 samples taken once in June 2003 from all stations and sampling points. The seasonal changes of ciliate density were analysed on the set of 41 samples taken from March to November 2004 from the middle sampling points (about 30 cm from water line) in 3 sampling stations. Ciliate community was characterised by relatively high taxonomic richness (56 ciliate taxa) and numbers (up to 2750 ind. cm⁻³ of sand). The numbers of ciliates varied seasonally from 4.6 to 1630 ind. per 1 cm³ of sand, showed three distinct peaks (maximum in summer) and were markedly differentiated among the sampling stations distributed along the 10 m of homogenous beach. Significant correlations between ciliates and the share of largest grain size fraction suggest that grain size of sand may be responsible for the observed spatial heterogeneity of ciliates. Hymenostomes, particularly the omnivorous Pleuronema coronatum Kent, dominated the ciliate assemblages. The statistical analysis showed a significant correlation between ciliate numbers and total phosphorus and total nitrogen concentrations in interstitial water, but there was no correlation with chlorophyll a.
7

Qualitative and quantitative composition of the suprabenthic amphipods from the English channel

84%
Vallet C., Dauvin J. C.
Polskie Archiwum Hydrobiologii
|
1995
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tom 42
|
nr 4
8

The effects of copper and zinc on biomass and taxonomic composition of algal periphyton communities from the River Gharasou, Western Iran

67%
Atazadeh I., Kelly M., Sharifi M., Beardall J.
Oceanological and Hydrobiological Studies
|
2009
|
tom 38
|
nr 3
3-14
9

Latitudinal pattern of abundance and composition of ciliate communities in the surface waters of the Atlantic Ocean

67%
Rychert K., Nawacka B., Majchrowski R., Zapadka T.
Oceanological and Hydrobiological Studies
|
2014
|
tom 43
|
nr 4
10

Changes in the structure of phytoplankton in the lowest part of the Cybina River and the Maltanski Reservoir

67%
Kozak A.
Oceanological and Hydrobiological Studies
|
2010
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tom 39
|
nr 1
85-94
11

Analysis of changes in cyanobacterial and algal flora of selected water reservoirs in Wroclaw between 1878 and 2010 (South-West Poland)

67%
Richter D.
Oceanological and Hydrobiological Studies
|
2013
|
tom 42
|
nr 4
12
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Zooplankton structure in high latitude fjords with contrasting oceanography (Hornsund and Kongsfjorden, Spitsbergen)

67%
Ormanczyk M. R., Gluchowska M., Olszewska A., Kwasniewski S.
Oceanologia
|
2017
|
tom 59
|
nr 4
Zooplankton inhabiting the Hornsund and Kongsfjorden fjords on Spitsbergen (Svalbard) were investigated in summer 2013. The goal of the study was to determine how the zooplankton communities vary in environments functioning under different oceanographic regimes. Sampling was conducted with nets of different mesh size and selectivity (56 μm WP-2, 180 μm MultiNet, and 1000 μm Tucker Trawl), which permitted comparing a wide size spectrum of zooplankton components. Species composition did not differ substantially between the fjords, but the zooplankton in Hornsund was almost two times less numerous, and it had lower biomass per unit volume. The highest abundance at both sites was in the smallest zooplankton size fraction found only in samples taken with 56 μm mesh WP-2 net. These comprised as much as 71% and 58% of the total zooplankton abundance in Hornsund and Kongsfjorden, respectively. The communities in both fjords had comparable contributions of Arctic and boreo-Arctic species biomass in the year of the study. However, the comparison of zooplankton characteristics over several years showed changes in abundance and biogeographic structure that corresponded with variations in the physical environments of the fjords. The results of the study permit predicting the possible effects of the increasing influence of Atlantic waters on zooplankton communities inhabiting Arctic marine pelagic ecosystems.
13

Inventory of the taxonomical composition of the plankton ciliates in the Curonian Lagoon (SE Baltic Sea)

59%
Griniene E., Mazeikaite S., Gasiunaite Z. R.
Oceanological and Hydrobiological Studies
|
2011
|
tom 40
|
nr 4
14

Numerical analysis of charred seeds and fruits from an 8000 years old site at Nabta Playa, western desert, south Egypt

59%
Mitka J., Wasylikowa K.
Acta Palaeobotanica
|
1995
|
tom 35
|
nr 1
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