Full-text resources of PSJD and other databases are now available in the new Library of Science.
Visit https://bibliotekanauki.pl
Preferences help
Polish version English version Language
enabled [disable] Abstract
Number of results

Results found: 8

Number of results on page
first rewind previous Page / 1 next fast forward last

Search results

help Sort By:

help Limit search:
first rewind previous Page / 1 next fast forward last
1
Publication available in full text mode
Content available

Glony rzeki Rawki

100%
Rakowska B.
Acta Universitatis Lodziensis. Folia Botanica
|
1984
|
vol. 3
EN
The article contains a presentation of results of qualitative and quantitative studies on microbenthos of the Rawka river. There were marked 413 taxa of algae in all, Including: Cyanophyta - 17, Euglenophyta - 12, Bacillariophyceae - 346 , Chlorophyta - 33, Xanthophyceae - 2, Rhodophyta - 1, Bacteriophyta - 2, The species present only in the spring section of the river, below the point of pollution and in the zone of progressive selfpurif ication have been distinguished. 8 taxa of Diatomae have been considered as prevailing.
2
Publication available in full text mode
Content available

Nowe i rzadkie dla flory Polski gatunki okrzemek

100%
Rakowska B., Uniwersytet Łódzki K. B.
Acta Universitatis Lodziensis. Folia Botanica
|
2000
|
vol. 15
EN
Taxonomic and ecological analysis of 21 diatom species was carried out. 13 of them have not been recorded in Poland until the present study; they are: Amphora montana Krasske, Navícula erifuga Lange-Bertalot, N. goeppertiana (Bleisch) H. L. Smith, N.joubaudii Germain, N. libonensis Schoeman, N. oppugnata Hustedt, N. novaesiberica Lange-Bertalot, N. recens (Lange-Bertalot) Lange-Bertalot, N. stroemii Hustedt, Neídíum bisculatum var. subamplialum Krammer, Pinnularia ignobilis (Krasske) Cleve-Euler, Stauroneis lauenburgiana Hustedt, St. wislouchii Poretzky & Anisimowa. 11 of these taxa (underlined) as well as Caloneis latiuscula (Kützing) Cleve and C. molaris (Grun.) Krammer are rare species for Polish and world diatom floras. 6 taxa have been described due to changes in their nomenclature introduced by Lange-Bertalot (1986, 1993), and new localities of their occurence in Poland are also given. These species are: Caloneis alpestris (Grun.) Cl., N. laterostrata Hust., N. rynchocephala Kütz., N. rynchotella Lange-Bertalot, N. subminuscula Manguin and Pinnularia stomatophora (Grun.) Cl.
3
Publication available in full text mode
Content available

Uwagi o taksonomii i ekologii kilkunastu gatunków okrzemek

100%
Rakowska B., Uniwersytet Łódzki K. B.
Acta Universitatis Lodziensis. Folia Botanica
|
1996
|
vol. 11
EN
A taxonomic and ecological analysis of 16 taxons of diatoms was carried out. Five species, Thalassiosira weissflogii (Grunow) Fryxell et Hasle, Navicula hrockmanii Hustedt, N. gottlandica Grunow in van Heurck, N. tenelloides Hustedt and Amphora thumensis (Mayer) Cleve-Euler were for the first time identified in Poland. Diatoms were from microbenthos samples collected in karst springs (close to the town of Tomaszów Mazowiecki), a dam reservoir on the Mroga River, the Rawka River and in peat (close to the town of Sieradz) and brown coal post-excavation pit (at the town of Konin).
4
Publication available in full text mode
Content available

Uwagi o taksonomii i ekologii niektórych gatunków okrzemek z rodzaju Navicula Bory

100%
Rakowska B., Uniwersytet Łódzki K. B.
Acta Universitatis Lodziensis. Folia Botanica
|
1992
|
vol. 9
EN
The work contains some remarks on the taxonomy and ecology of the 23 diatom taxons from the genus Navicula Bory to be found in the microbenthos of 3 rivers of Central Poland: Bzura, Mroga and Rawka. The data concerning diatom dimensions as well as the number of striae per 10 µm have been compared with those given by Hustedt (1930), Cleve-Euler (1953), Patrick, Reimer (1966), Germain (1981) and Kramer, Lange-Bertalot (1986).
5
Publication available in full text mode
Content available

Okrzemki rzeki Dobrzynki w Pabianicach (Polska Środkowa)

100%
Rakowska B., Uniwersytet Łódzki K. B.
Acta Universitatis Lodziensis. Folia Botanica
|
2000
|
vol. 15
EN
The Dobrzynka River is a left tributary of the 21.5 km long Ner River. Benthos samples were collected at the town of Pabianice, where the river is affected by communal-industrial sewage inflowing from a sanatorium at the village of Tuszynek, from the southern part of Pabianice and the „Pamotex” Cotton Mill. On the basis of 15 samples 97 diatom taxa were identified (Tab. I). Table II presents 5 dominant taxa (above 5%) and 9 subdominant taxa (2-5%). 18 constant species (81-100% of samples) were distinguished. Saprobity was determined for 84 species (Hofmann 1994, Lange-Bertalot 1994). On the basis of sapro-biological analysis the Dobrzynka River water at Pabianice may be characterized as α-β-mesosaprobic, which attributes the water to Water Purity Class II (Turoboyski 1979).
6
Publication available in full text mode
Content available

Okrzemki epifityczne występujące na plechach Cladophora glomerata i Vaucheria

100%
Rakowska B., Uniwersytet Łódzki K. B.
Acta Universitatis Lodziensis. Folia Botanica
|
1996
|
vol. 11
EN
96 taxa of epiphytic diatoms were identified on Cladophora glomerata in the Warta River. The dominant species (over 10%) were as fallows: Cocconeis pediculus Ehr., C. placentula Ehr., Rhoicosphenia abhreviata (Ag.) Lange- Bertalot, 58 taxa vere found in the Brda River; Achnanthes minutissima Kütz., Cocconeis pediculus Ehr., Cymbella minuta Hilse, Fragilaria vaucheriae (Kütz.) Pet., were prevalent. 43 taxa were distinguished on Vaucheria sp. in the Pisia River: Diatoma elongatum (Lyngb.) Ag., Navicula gregaria Donk., Synedra ulna (Nitzsch) Kütz., Synedra tabulala (Ag.) Kütz.
7
Content available remote

Okrzemki - organizmy, które odniosły sukces

100%
Rakowska B.
Kosmos
|
2003
|
vol. 52
|
issue 2-3
307-314
EN
Summary Diatoms (Diatomae, Bacillariophyceae) constitute the most abundant and most diverse group of algae. In science, nature and human activity they fulfill an exceptional function ensuing from their specific structure, physiology and ecology. They occur in all water environments or those whose habitats are constantly humid. Diatoms are primary organic matter producers in waters, hence they constitute a basis of the food chain in seas, oceans and inland waters. Due to their high lipid and protein contents they are highly energetic food of invertebrate animals. They are sensitive to physical and chemical changes of the environment, consequently, they are perfect biological indicators of changes occurring in water bodies, including those connected with acidity, eutrophication (trophic state), pollution (saprobity) and climate. After their death, permanent, siliceous frustules of diatoms fall onto the bottom, where they form diatom sediments called diatomite, whose thickness may reach 100 meters. Diatomite is an exceptionally valuable raw material used in food, chemistry and building construction industries. The age of diatoms is estimated at about 400 million years.
8
Publication available in full text mode
Content available

Flora glonów Bełchatowskiego Okręgu Przemysłowego

51%
Kadłubowska J., Ligowski R., Rakowska B., Maksymiuk Z.
Acta Universitatis Lodziensis. Folia Botanica
|
1981
|
vol. 1
EN
The paper contains a physical-geographical description of the Bełchatów Industrial District (Fig. 1). In samples taken from the Widawka River above the mine, from draining channels, and from the artificial and natural river beds, 448 taxa of algae were identified (Table 1). Shells of the following species of fossil algae were found in the samples: Actineptychus undulatus (Bail.) Ralfs, Thalassiosira antigua (Grun.) A. Cl. (Fig. 2) and Dictyocha fibula Ehr. (Fig. 3). A new for Poland diatom species was recorded: Surirella bifida A. Cl., found on stands 4 and 6 (Fig. 4).
PL
W pracy podano charakterystykę fizyczno-geograficzną Bełchatowskiego Okręgu Przemysłowego (rys. 1). W próbach pobranych z rzeki Widawki powyżej kopalni, z kanałów odwadniających, sztucznego koryta oraz naturalnego koryta rzeki Widawki zidentyfikowano 448 taksonów glonów (tab. 1). W próbach napotkano na skorupki następujących gatunków glonów kopalnych: Actlnoptychus undulatus (Bail.) Ralfs, Thalassioslra antigua (Grun.) A. Cl. (fot. 1), Dictyocha fibula Ehr. (fot. 2). Podano nowy dla Polski gatunek okrzemki: Surirella bifida A. Cl., która występowała na stanowisku 4 i 6 (fot. 3).
first rewind previous Page / 1 next fast forward last
JavaScript is turned off in your web browser. Turn it on to take full advantage of this site, then refresh the page.