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1
Content available remote Changes in the benthic fauna composition in the Upper Vistula over the last 50 years : the consequences of the water pollution reduction and alien species invasion
Dumnicka E., Konopacka A., Żurek R.
Oceanological and Hydrobiological Studies
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2018
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Vol. 47, No. 3
303--312
EN
The organic pollution of the Upper Vistula waters has been significantly reduced since the mid-20th century. Also salinity has gradually decreased, following an increase observed until the 1990s. Furthermore, the number of alien species has systematically increased. The above-mentioned changes have affected the richness and composition of the benthic fauna. They are particularly remarkable in the river stretch between the town of Oświęcim and the city of Kraków. The improvement of water quality has resulted in the increased number of taxa, mainly those characteristic of moderately polluted water, and the disappearance of taxa typical of strongly polluted or deoxygenated water. Despite the increased salinity level persisting for many years, only three benthic species of brackish waters (Gammarus tigrinus, Paranais frici and P. litoralis) were found in the Upper Vistula. Taxa considered to be euryhaline or halophilous were more numerous. In the 1960s, only one alien species (Physa acuta) was found, but the increased number of non-indigenous species in the last decades is visible, particularly among gammarid crustaceans (Amphipoda, Gammaroidea). The presence of alien species has not caused any visible changes in the species abundance of oligochaetes and mollusks.
2
Content available remote 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.
3
Content available remote A comparison of various indices based on benthic macrofauna for the assessment of the ecological status of selected Carpathian streams
Galas J., Dumnicka E., Galus-Barchan A.
Oceanological and Hydrobiological Studies
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2014
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Vol. 43, No. 2
123--130
EN
The biological indices MMI-PL, BMWP-PL, and %EPT were applied to compare the ecological status of Carpathian flysch stream sectors situated above and below sewage treatment plants. MMI-PL was found to be the most sensitive, whereas BMWP-PL indicated a very good ecological status at all sampling stations despite an increased trophic level of water in polluted sectors. %EPT proved to be an unreliable index because of its strong fluctuations resulting mainly from unstable densities of benthic invertebrate groups not included therein. The analyses of coli titers and water chemistry in the same stream sectors revealed temporary pollution at both types of stations.
4
Content available remote First record of a new alien species Limnodrilus cervix Brinkhurst, 1963 (Annelida, Clitellata) in the Vistula Lagoon (Southern Baltic Sea) [commun.]
Dumnicka E., Jabłońska-Barna I., Rychter A.
Oceanologia
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2014
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No. 56 (1)
151--158
EN
The present work reports the first record of Limnodrilus cervix in the south-eastern part of the Baltic Sea. A specimen of this North American species was found in 2010 in the Vistula Lagoon, near the village of Piaski (Poland). The distribution of other Nearctic Limnodrilus species in Europe is also presented.
5
Content available remote Abiotic parameters determining fauna composition in karstic springs
Koperski P., Dumnicka E., Galas J.
Polish Journal of Ecology
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2011
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Vol. 59, nr 1
153-163
EN
The biotic diversity of springs is specific, which makes them valuable sites important for nature protection. Springs located in the Krakow-Częstochowa Upland (southern Poland) are characterized by low variability of environmental conditions, but their benthic fauna composition is considerably different. Benthic invertebrates, water chemistry as well as sediment characteristics of 25 springs were studied four times in 2003. The relationships between fauna composition and abiotic parameters were ascertained using multivariate statistical analyses. In total, fifty families or subfamilies and four higher taxa of invertebrates were identified in the springs studied. Only Gammarus fossarum (Amphipoda) occurred in all of the springs, whereas crenophilic taxonomic groups such as Turbellaria, Bythinellinae, Nemouridae, Limoniidae, Limnephilidae and Enchytraeidae as well as ubiquitous taxa such as Tubificidae and Chironomidae were very common but not present in all springs. Important factors determining differences in the taxonomic composition (at the family level) of the invertebrate fauna of springs were found to be those connected with their geographical location as well as chemical and discharge parameters, which were different for southern and northern groups of springs. The taxonomic richness, i.e. the number of invertebrate taxa, was found to be strongly dependent on discharge and the content of organic matter in bottom sediments, whereas specific taxa mentioned above had other abiotic determinants such as alkalinity, NO3 and temperature.
6
Content available Natural and anthropogenic factors that participate in the forming of the spring and benthic invertebrates in the karst area of Cracow–Częstochowa Upland (Poland)
Różkowski J., Dumnicka E.
Biuletyn Państwowego Instytutu Geologicznego
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2010
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nr 441 Hydrogeologia z. 10
139--143
EN
The authors have carried out their investigations at the karst carbonate massif of the Cracow–Częstochowa Upland (CCU) since the 1990s of the XX century. The Upper Jurassic aquifer, which is a Major Ground Water Basin (MGWB No 326), was delimited in this area. It is closely connected with surface waters including living biocenoses and other dependent from the state of water. At the area of the CCU exist several hundred springs. At the drainage areas of springs authors conducted interdisciplinary investigations, including hydrogeological, geochemical, geological studies performed in spring drainage areas. The communities of benthic invertebrates were determined as the biomarkers of the environmental state. In natural springs remarkable groups of species such as oligostenothermic, crenophilic or crenobiontic prevailed whereas in springs under anthropopression mainly eurybiontic species could be stated. Stygobiontic species were also found in a few springs. The study, done together with the recognition of regional land management and pollution sources, allow to estimate the influence of natural and anthropogenic factors on water environment and its biotic elements within the karstic area of the CCU.
7
Content available remote New for Poland tubificid (Oligochaeta) species from karstic springs
Dumnicka E.
Polish Journal of Ecology
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2009
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Vol. 57, nr 2
395-401
EN
The majority of oligochaete species living in springs are ubiquitous and widely distributed taxa but cold stenothermic, semiaquatic and rare ones are also found. In Poland about 50 species are known from springs among 185 aquatic and semi-aquatic species found in whole country. Gianius aquaedulcis (Hrabe 1960) (Tubificidae, Phallodrilinae) is reported for the first time from Poland from two karstic springs situated in Krakow - Częstochowa Upland (South Poland). Both springs are hillside, fissure, descending, rheocrenes, with discharge about 30-40 L s[^-1]. Spring no 1 is situated in banked pond, spring no 2 has natural character. Their bottom is sandy or sandy-gravely, with patches of detritus, mud and plants. The conductivity, concentration of main cations (Ca, Mg) and anions (Cl, SO[4]) were typical for spring waters of this limestone area; only concentration of nitrate is slightly elevated. The samples of bottom fauna (a polyethylene corer and a bottom scraper) and water for chemical analysis were taken seasonally. This species was more numerous in a banked spring than in the natural one (maximal density about 1600 ind. m[^-2]) and seasonal changes of its density were similar in both springs. Mature specimens formed only 5-8% of the population and were present in all sampling data. G. aquaedulcis is known from a few localities only (Germany, France, Spain and USA). It lives in underground and surface waters, with slightly alkaline pH on sandy or stony bottom. Maybe this species forms a few relictic populations which persist in subterranean (cave or hyporheic) waters of some geographic regions at least since the last glacial epoch. The existence of small anatomical differences (for example various thickness of the muscular lining of the atria and changeable shape of penial setae) among the studied populations from various countries seems to confirm this hypothesis.
8
Content available remote 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.
9
Content available remote 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.
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