The diversity and longitudinal changes of zooplankton in the lower course of a large, regulated European river (the lower Vistula River, Poland)

Napiórkowski, P.; Napiórkowska, Teresa

doi:10.2478/s11756-013-0263-6

Cited by 20 publications

(13 citation statements)

References 32 publications

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“…The electrolytic conductivity (Fig. 2) of that contaminated river greatly exceeded the geochemical background value in this part of Poland (Table 2) but was close to waters of the Biebrza River (Grabowska et al 2014) or the Vistula River (Napiórkowski and Napiórkowska 2013). River waters supplying the semi-natural system had varied mineral concentrations of dissolved solids, which were reflected in the average electrolytic conductivity ( p < 0.001) with the lowest and the highest conductivity of the rivers differing by 40 % (Fig.…”

Section: Discussionmentioning

confidence: 70%

Hydrochemical diversity of semi-natural water system on the background of environmental conditions

Cudowski

Górniak

Więcko

2015

Environ Monit Assess

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Research carried out from 2007 to 2011 showed that a tested semi-natural water system with a diverse catchment (peat, peat-mineral and mineral) has a very varied quality of water, as evidenced by a the large range of conductivity (174–828 μS/cm) and pH (6.34–9.92). Natural lake parts of the semi-natural water system were similar to the artificial parts in terms of physico-chemical parameters, as evidenced by the lack of statistically significant differences between the water quality in both of these ecosystems. Taking into account the quality of various types of water in this semi-natural system, it can be seen that the river waters differed significantly (p < 0.001) in concentrations of biogenic elements (nitrogen, phosphorus) from another type of ecosystems. In addition, rivers poor in organic matter (TOC < 10.0 mg/L) which directly supplied the water system contributed to higher values of many tested parameters (EC, pH, TC, TN, SO42− or Cl−) in waters of the canal. In contrast, rivers with high values of concentrations of organic matter (TOC > 10.0 mg/L) contributed to a decline in values of those parameters. Moreover, lake waters within the tested semi-natural water system showed a “cleansing” function, because they caused a decrease in conductivity, pH or the concentration of carbon, total nitrogen, sulphate(VI) and chloride in waters of the canal.

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Section: Discussionmentioning

confidence: 70%

Hydrochemical diversity of semi-natural water system on the background of environmental conditions

Cudowski

Górniak

Więcko

2015

Environ Monit Assess

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“…Studies of longitudinal distribution of organisms in rivers are a step forward in understanding the mechanisms of river ecosystems functioning. In spite of the growing interest to large rivers, our knowledge of their plankton is clearly insufficient (Napiórkowski & Napiórkowska, 2013;Kim & Joo, 2000). Of special interest is the identification of factors, which determine the distribution of planktonic organisms along the longitudinal and transversal profiles of large rivers.…”

Section: Introductionmentioning

confidence: 99%

“…Of special interest is the identification of factors, which determine the distribution of planktonic organisms along the longitudinal and transversal profiles of large rivers. Zooplankton organisms are identified as important components of aquatic ecosystems playing the essential role in transformation and circulation of organic matter, regulation of phytoplankton biomass and fish nutrition (especially at a larval stage) (Napiórkowski & Napiórkowska, 2013;Dejen et al, 2004). The main factors limiting the development of riverine zooplankton are food availability, predator pressure, flow velocity, temperature and water quality (Kim & Joo, 2000).…”

Section: Introductionmentioning

confidence: 99%

“…Water residence time is of particular importance for plankton development in rivers (Basu & Pick, 1996). The increase in river size brings to the increased water residence time that, in turn, results in downstream-directed increase in zooplankton abundance (Napiórkowski & Napiórkowska, 2013). When a flow velocity grows, water residence time decreases, water turbidity and suspended sediment content in the water column increase.…”

Section: Introductionmentioning

confidence: 99%

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Longitudinal variability in the zooplankton community of the upper Ob river

Бурмистрова¹,

Yanygina²

2019

Ukr J Ecol

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Zooplankton is important component of aquatic ecosystems playing the essential role in organic matter circulation and self-purification of water bodies. Current data on zooplankton from one of the largest rivers in the world, i.e. the Ob river, is very fragmentary and cover small areas adjacent to large settlements. This paper presents the results of the zooplankton study of the 458-km stretch of the Ob river – from its source (Fominskoye village) up to the site above the Novosibirsk reservoir (Taradanovo village). To assess the longitudinal distribution of zooplankton, we collected samples from 17 river sections in different phases of a hydrological cycle, i.e. during the periods of flood (May–June) and summer low water (July–August) 2016. A total of 103 species and forms of zooplankton were detected. Rotifera dominated in species number. In various river parts and hydrological cycle phases, species number, abundance and biomass of zooplankton differed significantly. Their maximum typically fell on the period of summer low water. Abundance and biomass of zooplankton tended to increase downstream. In most parts of the river, Rotifers was dominant in number, whereas copepods – in biomass (juvenile stages). Zooplankton distribution along the transversal profile of the river was characterized by the increased species number, abundance and biomass near the right bank (unlike the left one) that is, probably, due to the floodplain appearance on the right bank. An increase in zooplankton abundance was also observed in sites with a low flow velocity (river bays) and below the large tributaries. The assessment of water quality in the study site of the Ob river was performed based on the zooplankton composition and structure. A saprobic index for zooplankton is evidence of oligo- betamesosaprobic conditions.

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“…Relatively few studies have used a Lagrangian approach to investigate the dynamics of the metazoan component of river plankton, mostly in Central and Eastern Europe (de Ruyter van Steveninck et al ., ; Welker and Walz, ; Ietswaart et al ., ; Zimmermann‐Timm et al ., ; Scherwass et al ., ; Gruberts et al ., ; Napiórkowski and Napiórkowska, ; Gruberts and Paidere, ; Hardenbicker et al ., ). Most of these studies showed the occurrence of downstream changes in zooplankton abundance and composition in large lowland rivers.…”

Section: Introductionmentioning

confidence: 99%

Longitudinal Variability in Hydrochemistry and Zooplankton Community of a Large River: A Lagrangian‐Based Approach

Bertani

Longo

Pecora

et al. 2016

River Research & Apps

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The variability in water quality and zooplankton community structure during downstream transport was investigated in the Po river (Italy) using for the first time a Lagrangian sampling approach. Two surveys were conducted, one in spring under relatively high discharge levels, and one at low flows in summer. Twelve stations along a 332‐km stretch of the river's lowland reach and four major tributaries were sampled. A hydrodynamic modelling system was used to determine water transport time along the river, with a satisfying fit between simulated and observed discharge values. No clear downstream trend in phosphorus and nitrogen concentrations was found. Conversely, a marked longitudinal decrease in dissolved silica supports the hypothesis of increasing downstream silica limitation during the phytoplankton growing season. In spring, at low residence time, no apparent plankton growth was observed during downstream transport. In summer, higher temperatures and lower turbulence and turbidity associated with longer residence time stimulated algal growth and in‐stream reproduction of fast‐growing rotifer taxa, with the gradual downstream development of a truly potamal assemblage and the increase of the ratio of euplanktonic to littoral/epibenthic rotifer taxa. Crustacean zooplankton density was generally low. The importance of biotic interactions within the zooplankton in driving community abundance and composition appeared to increase in the downstream direction, paralleled by a decrease in the influence of physical forcing. Tributary influence was especially evident where severe anthropogenic alterations of river hydrology and trophic status resulted in enhanced plankton growth, ultimately affecting zooplankton structure in the main river. Copyright © 2016 John Wiley & Sons, Ltd.

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The diversity and longitudinal changes of zooplankton in the lower course of a large, regulated European river (the lower Vistula River, Poland)

Cited by 20 publications

References 32 publications

Hydrochemical diversity of semi-natural water system on the background of environmental conditions

Hydrochemical diversity of semi-natural water system on the background of environmental conditions

Longitudinal variability in the zooplankton community of the upper Ob river

Longitudinal Variability in Hydrochemistry and Zooplankton Community of a Large River: A Lagrangian‐Based Approach

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