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Prywatny zbiór publikacji – autorefleksja pod koniec zawodowej działalności

Kasprzak Krzysztof

Polish Journal for Sustainable Development

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2020

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T. 24, cz. 2

39--44

PL

Artykuł przedstawia problem wykorzystywania prywatnych zbiorów publikacji po zakończeniu działalności zawodowej. Wskazano na brak procedur umożliwiających przekazanie prywatnego księgozbioru do biblioteki uczelni po przejściu na emeryturę.

EN

The article presents the problem of preserving private collections of publications after the end of professional activity. It pointed to the lack of procedures for transferring a private book collections to university libraries after retirement.

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Do abundance and percentage of dipteran larvae and Oligochaeta indicate low water quality in streams and lake littoral?

Timm Henn, Haldna Marina

Oceanological and Hydrobiological Studies

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2019

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Vol. 48, No. 4

415--429

EN

The presence of chironomids and/or oligochaetes is generally considered to be an indication of poor status of freshwater. Non-chironomid dipterans show unclear trends. The abundance and percentage of these groups are rarely used as potential indicators. We attempted to determine whether these metrics reveal freshwater quality in lowland streams and lake littoral (Northern Europe, Baltic ecoregion, Estonia). The water quality was assessed based either on the water itself or on macroinvertebrates, fish, macrophytes, phytobenthos (in streams only) and/or phytoplankton (in lakes only). As expected, the high abundance and high percentage of chironomids and ceratopogonids indicated low quality of water in lakes. The high percentage of chironomids indicated low water quality also in streams. The high percentage of oligochaetes indicated low water quality in lakes. However, their high abundance (but not the percentage) was unexpectedly a symptom of high water quality in streams and to a lesser extent in lakes. In these cases, oligochaetes were represented by rheophilic, rather than saprophilic species. The abundance of simuliids (but not the percentage) and the richness of dipteran families indicated high water quality in streams. We suggest that the obtained results will allow better use of the indicative potential of freshwater macroinvertebrates.

3

Reproduction of Potamothrix hammoniensis (Oligochaeta) in shallow eutrophic lakes

Żbikowski J., Mimier D., Żbikowska E.

Oceanological and Hydrobiological Studies

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2018

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Vol. 47, No. 2

181--189

EN

The aim of the study was to indicate the abiotic parameters of water and bottom sediments, which significantly affect the reproduction of Potamothrix hammoniensis in 9 shallow eutrophic lakes, of which 5 were dominated by macrophytes and 4 – by phytoplankton. Samples were collected once a month from January to December 2012. The percentage of Potamothrix hammoniensis individuals with a developed reproductive system varied in individual lakes and ranged from 14 to 72%. There was no correlation between the distinguished lake types and the proportion of sexually mature individuals. The reproductive activity was not observed in summer and early autumn. Among the measured parameters, the highest values of the Pearson correlation coefficient were found between the percentage of individuals with a developed reproductive system and the conductivity (r = 0.69; p < 0.001), pH (r = 0.51; p = 0.002) and the organic matter content in the sediments (r = −0.42; p = 0.012). It is worth noting that there was no correlation between the percentage of sexually mature specimens and the water temperature (r = −0.22, p = 0.204) and the oxygen concentration (r = −0.08; p = 0.648).

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Comparative Effects of Aquaculture and Water Level Fluctuations on Macroinvertebrate Communities in Three Gorges Reservoir, China

Chi S., Zheng Z., Zhang Z., Hu J., Zheng J., Zhao X., Hu J., Dong F., Peng J.

Polish Journal of Ecology

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2017

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Vol. 65, nr 4

390--404

EN

In this study, the comparative effects of the two disturbances (aquaculture and water level fluctuations) on macroinvertebrate communities were explored in two waterbodies connected with the reservoir system of Three Gorges Reservoir (TGR) in China. One water body called Gaoyang Bay which suffered organic pollution from intensive aquaculture. Another named Hanfeng Lake, where the effects of water-level fluctuations are obvious. The results showed that aquaculture could significantly affect the chemical forms of nutrients, decrease the α-diversity and increase the β-diversity of macroinvertebrates although the communities in the treatment area in Gaoyang Bay were not fundamentally changed comparing to the control area in the same bay. The densities of macroinvertebrates in the treatment area were significantly lower than that of the control area. The composition of functional feeding groups in the treatment area was close to that in Hanfeng Lake, but obviously different from that in the control area in Gaoyang Bay and the collectors and predators dominated the communities in this control area with the highest percentages. Although water-level fluctuations had negative effects on the communities by decreasing the α-diversity and increasing the β-diversity, which were confirmed by the values of Simpson index, Shannon-Wiener index and Harrison's index in the control area of Gaoyang bay and Hanfeng Lake, the adverse effects were relative low compared to aquaculture. In the bays of TGR, the small-scale disturbance (aquaculture activities) had more significant negative effects compared to the big-scale disturbance (water-level fluctuations related to dam operation of TGR).

5

New data on benthic Naididae (Annelida, Clitellata) in Polish brackish waters

Marszewska L., Dumnicka E., Normant-Saremba M.

Oceanologia

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2017

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No. 59 (1)

81--84

EN

This paper presents new findings on oligochaete species inhabiting Polish brackish waters. Identification of 455 specimens collected in September 2013 and July 2014 during the macrozoobenthos survey in the Port of Gdynia (the Gulf of Gdańsk, the southern Baltic Sea, Poland) showed the presence of six species belonging to two subfamilies Naidinae and Tubificinae.

6

Composition and abundance of oligochaetes (Annelida: Ooligochaeta) in springs of Kraków-Częstochowa Upland (Southern Poland): effect of Spring encasing and environmental factors

Dumnicka Elżbieta

Polish Journal of Ecology

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2006

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Vol. 54, nr 2

231-242

EN

Studies were performed on 25 karstic springs located in Southern Poland (50 degrees 10 - 50 degrees 46' N, 19 degrees 17' - 19 degrees 54'E). They are natural or encased, differing also in discharge rate (0.01-15 l s^-1 in the southern part of Kraków-Częstochowa Upland while 20 - 1440 l s^-1 in its northern part) and kind of bottom sediments (fine or coarse). 27 species and l genus representing 5 families were determined, among them Enchytraeidae were represented by the highest number of species whereas Tubificidae (mainly juvenile forms) were the most abundant. Among oligochaetes no crenobionts were found while crenophiles: Rhyacodrilus falciformis Bretscher and Stylodrilus heringianus Claparede were present in a half of the studied springs. In the majority of the studied springs the density of oligochaetes was significantly higher in fine sediments (ranges 200 - 13 200 ind. m^-2) than in coarse ones (ranges 22-7900 ind. m^-2) (P <0.05). The species diversity (H') was also higher in in fine sediments, especially in springs of the southern part of Upland. Oligochaeta were more abundant and diversified in encased springs than in natural ones and they inhabited preferably fine sediments. The discharge and springs localization (in southern or northern part of the studied area) were found to be not of importance for oligochaete composition and abundance.

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Novel Polish recordings of rare aquatic Oligochaeta species

Dumnicka E., Poznańska M.

Oceanological and Hydrobiological Studies

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2006

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Vol. 35, No.2

111-120

EN

Two oligochaete species from the family Tubificidae: Peipsidrilus pusillus and Tubifex blanchardi, not previously reported from Poland, were found in the limnic part of the Włocławek Dam Reservoir. P. pusillus is known from lakes in Northern Europe and from a brook in the Czech Republic, while Tubifex blanchardi is known from fresh- and brackish waters, primarily strongly polluted waters, in North Africa and Southern Europe. Remarks on the distribution of Bothrioneurum vejdovskyanum, a species rarely found in Poland, are also included.

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Upper Vistula River : response of aquatic communities to pollution and impoundment. 10, Oligochaete taxocens

Dumnicka E.

Polish Journal of Ecology

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2002

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Vol. 50, nr 2

237-247

EN

The studies were carried out on 9 sites situated between 10 and 337 km of the river course to asses which parameters are the most important for the composition and density of oligochaete taxocens. 42 species and 4 genera of oligochaetes were found. Considering number of species (24) and number of specimens Naididae were the most numerous, Tubificidae were less frequent (12 species), other families were represented by a few taxa. In the studied sector of the Vistula the natural taxocens of oligochaetes did not exist. Various reasons were responsible for these modifications: eutrophication (sites 2, 3), strong pollution (from site 5 downstream) and hydrotechnical structures (sites 1, 4, 6). The natural changes of oligochaetes density connected with their life cycles were modified by the effects of flood and water pollution.