Potamozooplankton communities in three different outlets from mesotrophic lakes located in lake-river system

Czerniawski, Robert; Domagała, Józef

doi:10.2478/s13545-012-0006-2

Cited by 14 publications

(14 citation statements)

References 33 publications

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“…The higher the values of the above parameters, the lower the reduction in crustacean biomass. Some authors studying the influence of hydrological conditions of outlets or streams on the composition of zooplankton have reported a positive correlation between hydrological variables and communities of plankters, especially the large taxa (Campbell 2002, Czerniawski & Domagała 2012. Perhaps, in the outflow sections where current velocity and discharge are high, the pressure of planktivorous fish on zooplankton is smaller, because of high current speed that drifts zooplankton faster, making it hard to reach (Czerniawski & Domagała 2010b).…”

Section: Discussionmentioning

confidence: 99%

“…The reduction of abundance and biomass of chydorids reached over 80% while that of bosminids reached over 70%. Chang et al (2008), Czerniawski & Domagała (2012), and Czerniawski & Pilecka-Rapacz (2011) have also reported a great reduction in the density and biomass of zooplankton representing the same taxa in the outflows from lakes and artificial reservoirs, reaching even 100%, which, as mentioned above, should be related to the pressure of planktivorous fish. Significant reduction of communities of small cladocerans such as bosminids and chydorids by fish does not agree with the results of experimental studies of some authors who reported that the presence of fish had no negative effect on the density of Bosmina sp.…”

Section: Discussionmentioning

confidence: 99%

“…In this region the highest reduction of zooplankton communities in outlet sections occurs in summer (Czerniawski & Domagała 2010a, Czerniawski & Domagała 2012. At each site, 50 l of water were collected with a 10 l bucket from the river current.…”

Section: Methodsmentioning

confidence: 99%

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Reduction of zooplankton communities in small lake outlets in relation to abiotic and biotic factors

Czerniawski

Domagała

2013

Oceanological and Hydrobiological Studies

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The aim of this study was to answer the following questions: (1) which environmental variables, biotic (fish predation) or abiotic factors, have a greater influence on the rate of zooplankton changes in lake outlet sections and (2) which plankters suffer the greatest reduction in the outlet section.Samples were collected in two locations at each of 18 lakes. The first site was right at the outflow; the second site was 0.2 km downstream from the outflow. At downstream sites the percentage contribution of Rotifera in zooplankton species number and abundance was higher than in the outflow, whilst the percentage contribution of Cladocera and Copepoda (except nauplii) in the zooplankton species number and abundance was lower at downstream sites than in outlets. The most important variables affecting the rate of zooplankton reduction in the lake outlets are the biomass of cyprinids and hydrological parameters along the outlet, such as discharge, current velocity, and depth.The most dramatic reductions involved daphnids, adult copepods, small cladocerans, and copepodites, while the reduction in the abundance of rotifers and nauplii was statistically insignificant.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Reduction of zooplankton communities in small lake outlets in relation to abiotic and biotic factors

Czerniawski

Domagała

2013

Oceanological and Hydrobiological Studies

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“…harpae and Ch. sphaericus À which occur in small ponds and may be dominant in the littoral zone À can also occur in the rheopelagial (as potamoplankton) of rivers (Hudec 1989;Czerniawski & Domagała 2012). The relatively high flow rate and high current speed favour the growth of plankton (Campbell 2002).…”

Section: Water-level Changes and Flooding Eventsmentioning

confidence: 98%

A reconstruction of the palaeohydrological conditions of a flood‐plain: a multi‐proxy study from the Grabia River valley mire, central Poland

Pawłowski

Kowalewski

Milecka

et al. 2015

Boreas

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This study investigated the Grabia River valley mire in central Poland to reconstruct its palaeoenvironmental conditions from the Younger Dryas to the present. We analysed sedimentological, biological and geochemical data from the palaeo-oxbow lake and valley mire to identify the principal hydrological trends, especially episodes of high water level. During the Lateglacial and Holocene, the Grabia River had a meandering channel, and its hydraulic parameters and the channel dimensions changed in response to climatic oscillations and vegetation development. We identified phases of high flood intensity and high groundwater level that correlate with regional and supraregional climatic events. The frequency and timing of palaeohydroclimatic oscillations show strong similarities to records from other sites in Poland and the rest of Europe. We show that various analytical methods, namely, pollen, plant macrofossils, Cladocera, Chironomidae, sedimentological, geochemical and radiocarbon data, can be effective tools for reconstructing past hydroclimatic changes in palaeo-oxbow lakes and investigating the effects of past climate changes on river environments. The high sensitivity of the biota, especially Cladocera, to changes in water level permits the reconstruction of palaeoecological changes, especially flood episodes that occurred in the river valley. In particular, the increase in the proportion of sediment-associated Cladocera and pelagic taxa was closely correlated with floods. Through comparisons with the palaeobiological data, geochemical data allowed the identification of humid phases within the fen associated with a rising groundwater table, direct fluvial activity (floods) and alluvial deposition. We also discuss the limitations of palaeohydrological reconstructions based on these proxies, especially on fossil aquatic invertebrates.

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“…Moreover, the vast majority of small water bodies undergo the process of terrestrialisation, which may result in negative implications for biodiversity. Not only will the concentration of nutrients structure the assemblages of plankton in small water bodies, but physical factors will also play a role Wilk-Woźniak et al, 2011;Czerniawski and Domagała, 2012). However, in ecosystems with varying environmental conditions, organisms have to adapt in order to survive and develop.…”

Section: Introductionmentioning

confidence: 99%

Specificity of zooplankton distribution in meteorite crater ponds (Morasko, Poland)

Kuczyńska‐Kippen

Basińska

Świdnicki

2013

Knowl. Managt. Aquatic Ecosyst.

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Key-words:astatic ponds, crustaceans, pond, rotifers, season, trophic conditions This study was conducted in order to define the most important factors responsible for the zooplankton community structure inhabiting four meteorite crater ponds, located near the city of Poznań (Poland). The functioning of the meteorite craters resembled that of other small water bodies, where seasonality, physical-chemical features (mainly chlorophyll a concentration, pH and conductivity) or biological parameters (lack of fish) structured zooplankton assemblages. Rotifer species richness and abundance were highest in the autumn (12 species and 5107 ind L −1 on average), while crustaceans prevailed in the summer (12 and 201, respectively). The dominating structure also depended on the season, with pelagic species occurring in the spring and autumn and mainly littoral species in the summer. Moreover, the temporary nature of the craters caused great differentiation in zooplankton among ponds and favoured organisms adapted to living in astatic reservoirs, e.g. bdelloids, Daphnia pulex or Macrocyclops viridis. The co-occurrence of a variable community of small crustaceans with large daphnids indicated the existence of an additional ecological niche -a thick layer of sediments. Despite the occurrence of adverse living conditions (oxygen deficiencies and periodic drying) and the eutrophic character of the waters, these ponds were a source of many rare species (e.g. Keratella paludosa), even in the status of dominants. Protective measures (a nature reserve) allowed the area of meteorite fall to remain quite natural, despite its location close to an urban area. RÉSUMÉSpécificité de la distribution du zooplancton dans les plans d'eau de cratères de météo-rites (Morasko, Pologne) Mots-clés :étangs temporaires, crustacés, étang, rotifère, L'étude a été menée afin de définir les facteurs les plus importants responsables de la structure de la communauté du zooplancton vivant dans quatre étangs de cratères de météorites, situés près de la ville de Poznan (Pologne). Le fonctionnement des cratères de météorites ressemble à celui d'autres petits plans d'eau, où la saisonnalité, les caractéristiques physico-chimiques (principalement concentration de chlorophylle a, pH et conductivité) ou les paramètres biologiques (manque de poisson) structurent les assemblages de zooplancton. La richesse et l'abondance des espèces de rotifères étaient les plus élevées à l'automne (12 espèces saisonnalité, conditions trophiqueset 5107 ind L −1 en moyenne), tandis que les crustacés ont prévalu durant l'été (12 et 201, respectivement). La structure dominante dépendait aussi de la saison, avec des espèces pélagiques présentes au printemps et en automne, et principalement des espèces littorales en été. En outre, le caractère temporaire des cratères a causé une grande différenciation du zooplancton entre les étangs et a favorisé les organismes adaptés à la vie dans les milieux temporaires, par exemple, bdelloïdes, Daphnia pulex ou Macrocyclops viridis....

show abstract

Potamozooplankton communities in three different outlets from mesotrophic lakes located in lake-river system

Cited by 14 publications

References 33 publications

Reduction of zooplankton communities in small lake outlets in relation to abiotic and biotic factors

Reduction of zooplankton communities in small lake outlets in relation to abiotic and biotic factors

A reconstruction of the palaeohydrological conditions of a flood‐plain: a multi‐proxy study from the Grabia River valley mire, central Poland

Specificity of zooplankton distribution in meteorite crater ponds (Morasko, Poland)

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