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Short-term changes in phytoplankton assemblages and their potential for heavy metal bioaccumulation – a laboratory study

Open Access
|Sep 2018

Figures & Tables

Figure 1

Water sampling sites: 1 – El-Boom station, 2 – New Bahr El-Baqar drain in Lake Manzala in Egypt
Water sampling sites: 1 – El-Boom station, 2 – New Bahr El-Baqar drain in Lake Manzala in Egypt

Figure 2

Chlorophyll content (mean ± SE, min.−max) in basin I (El-Boom station) and basin II (New Bahr El-Baqar drain) during the experimental period
Chlorophyll content (mean ± SE, min.−max) in basin I (El-Boom station) and basin II (New Bahr El-Baqar drain) during the experimental period

Figure 3

Phytoplankton abundance in basin I (El-Boom station) and basin II (New Bahr El-Baqar drain) during the experimental period; dotted lines indicate the abundance output levels of the experiment in each basin
Phytoplankton abundance in basin I (El-Boom station) and basin II (New Bahr El-Baqar drain) during the experimental period; dotted lines indicate the abundance output levels of the experiment in each basin

Figure 4

Phytoplankton structure in basin I – El-Boom station (A) and basin II – New Bahr El-Baqar drain (B) during the experimental period
Phytoplankton structure in basin I – El-Boom station (A) and basin II – New Bahr El-Baqar drain (B) during the experimental period

Figure 5

Cluster analysis based on similarity of phytoplankton taxonomic structure in basin I (A – water from El-Boom station) and basin II (B – water from New Bahr El-Baqar drain) during the 15-day experimental period; 1-15 consecutive days of the experiment
Cluster analysis based on similarity of phytoplankton taxonomic structure in basin I (A – water from El-Boom station) and basin II (B – water from New Bahr El-Baqar drain) during the 15-day experimental period; 1-15 consecutive days of the experiment

Figure 6

Uptake of heavy metals: lead (a), iron (b) and zinc (c) by phytoplankton in basins I and II during the experimental
period
Uptake of heavy metals: lead (a), iron (b) and zinc (c) by phytoplankton in basins I and II during the experimental period

Figure 7

Uptake factor (%) used to assess the rate of heavy metal bioaccumulation by phytoplankton in basin I (A) and basin II (B)
Uptake factor (%) used to assess the rate of heavy metal bioaccumulation by phytoplankton in basin I (A) and basin II (B)

Figure 8

PCA-based relationships between phytoplankton and heavy metal bioaccumulation (A) and ordination of samples (B) during the 15-day experiment in basin I (BI) and basin II (BII)
PCA-based relationships between phytoplankton and heavy metal bioaccumulation (A) and ordination of samples (B) during the 15-day experiment in basin I (BI) and basin II (BII)

Figure 9

CCA joint plot of relationships between dominant phytoplankton species and classes and iron, zinc and lead bioaccumulation capacity on the 1st, 5th, 10th and 15th day of the experiment in basin I (BI) and basin II (BII) based on Canonical Correspondence Analysis. Kirch – Kirchneriella obesa, Nephr – Nephrocytium limneticum, Actin – Actinoptychus octonarius, Aulac – Aulacoseira granulata, Pantoc – Pantocsekiella ocellata, Chrooc – Chroococcus minor, Micr – Microcystis aeruginosa, CHL – Chlorophyceae, BAC – Bacillariophyceae, CYA – Cyanophyceae
CCA joint plot of relationships between dominant phytoplankton species and classes and iron, zinc and lead bioaccumulation capacity on the 1st, 5th, 10th and 15th day of the experiment in basin I (BI) and basin II (BII) based on Canonical Correspondence Analysis. Kirch – Kirchneriella obesa, Nephr – Nephrocytium limneticum, Actin – Actinoptychus octonarius, Aulac – Aulacoseira granulata, Pantoc – Pantocsekiella ocellata, Chrooc – Chroococcus minor, Micr – Microcystis aeruginosa, CHL – Chlorophyceae, BAC – Bacillariophyceae, CYA – Cyanophyceae

Physicochemical parameters of waters at two sampling sites in Lake Manzala in spring 2017

ParametersUnitsSampling sites
El-BoomNew Bahr El-Baqar Drain
Temperature°C26.426.2
Secchi disk depthm0.30.2
Total solidsg l−13.713.03
Total dissolved solids3.462.65
Total suspended solids0.250.39
Electrical conductivitymS cm−15.414.12
pH 7.987.78
Dissolved oxygenmg l−114.21.2
Biological oxygen demand31.547.5
Chemical oxygen demand2.88.8
Nitritesμg l−121.1268.57
Nitrates15.17110.1
Ammonium325.379862.26
Orthophosphates324.53445.08
Total phosphorus331.94480.38
Silicon dioxidemg l−110.9810.67
SalinityPSU2.662.12
TSI (Trophic State Index)

TSI calculations according to Carlson, Simpson (1996)

82.7 (hypertrophy)86.7 (hypertrophy)

List of phytoplankton species investigated both in basin I (El-Boom) and basin II (New Bahr El-Baqar drain) during the experimental period (dominant species are in bold)

No.SpeciesEl-BoomNew Bahr El-Baqar drain
CHLOROPHYCEAE
1Acutodesmus acuminatus (Lagerheim) P.M. Tsarenko++
2Ankistrodesmus falcatus (Corda) Ralfs++
3Ankistrodesmus fractus (West & G.S.West) Collins++
4Chlorella vulgaris Beyerinck++
5Coelastrum microporum Nägeli++
6Crucigenia tetrapedia (Kirchner) Kuntze++
7Desmodesmus bicaudatus (Dedusenko) P.M. Tsarenko+
8Desmodesmus maximus (West & G.S.West) Hegewald+
9Elakatothrix gelatinosa Wille++
10Franceia ovalis (Francé) Lemmermann++
11Fusola viridis J.W. Snow++
12Golenkinia radiata Chodat+
13Kirchneriella aperta Teiling++
14Kirchneriella major C. Bernard++
15Kirchneriella obesa (West) West & G.S. West++
16Monoraphidium convolutum (Corda) Komárková-Legnerová++
17Nephrocytium limneticum (G.M. Smith) G.M. Smith++
18Oedogonium americanum Transeau++
19Oocystis pyriformis Prescott++
20Pseudopediastrum boryanum var. longicorne (Reinsch) Tsarenko+
21Pseudokirchneriella elongata (G.M.Smith) F.Hindák+
22Quadrigula chodatii (Tanner-Füllemann) G.M. Smith+
23Scenedesmus armatus (Chodat) Chodat+
24Scenedesmus bijugus (Turpin) Lagerheim+
25Scenedesmus obtusus Meyen++
26Schroederia jadayi G.M. Smith+
27Selenastrum bibraianum Reinsch++
28Tetradesmus dimorphus (Turpin) M.J. Wynne++
29Tetraëdron minimum (A. Braun) Hansgirg++
30Tetraëdron trigonum (Nägeli) Hansgirg++
31Tetraselmis suecica (Kylin) Butcher++
BACILLARIOPHYCEAE
1Actinoptychus octonarius (Ehrenberg) Kützing++
2Aulacoseira granulata (Ehrenberg) Simonsen++
3Biddulphia biddulphiana (J.E. Smith) Boyer++
4Ceratoneis closterium Ehrenberg++
5Chaetoceros lorenzianus Grunow+
6Cocconeis neodiminuta Krammer++
7Cyclotella meneghiniana Kützing++
8Cymbella tumida (Brébisson) van Heurck+
9Entomoneis alata (Ehrenberg) Ehrenberg++
10Fragilaria vaucheriae (Kützing) J.B. Petersen++
11Lyrella lyra (Ehrenberg) Karajeva++
12Nitzschia acicularis (Kützing) W. Smith++
13Nitzschia frustulum var. perpusillum (Rabenhorst) van Heurck+
14Nitzschia linearis W. Smith++
15Nitzschia palea (Kützing) W. Smith++
16Pantocsekiella ocellata (Pantocsek) K.T. Kiss & E.Ács++
17Pinnularia major (Kützing) Rabenhorst+
18Pleurosigma elongatum W. Smith+
19Triceratium favus Ehrenberg+
20Triceratium grande var. septangulata (Kitton) Schmidt+
21Ulnaria ulna (Nitzsch) Compère++
CYANOPHYCEAE
1Anabaena wisconsinensis Prescott++
2Anabaenopsis circularis (G.S. West) Woloszynska & V. Miller++
3Aphanocapsa grevillei (Berkeley) Rabenhorst++
4Chroococcus minor (Kützing) Nägeli++
5Chroococcus minutus (Kützing) Nägeli++
6Chroococcus pallidus Nägeli++
7Dactylococcopsis raphidioides Hansgirg++
8Glaucospira laxissima (G.S. West) Simic, Komárek & Dordevic+
9Gloeobacter violaceus Rippka, J.B. Waterbury & Cohen-Bazire++
10Gloeocapsa punctata Nägeli++
11Gomphosphaeria aponina Kützing++
12Leptolyngbya tenuis (Gomont) Anagnostidis & Komárek++
13Merismopedia tenuissima Lemmermann++
14Microcystis aeruginosa (Kützing) Kützing++
15Oscillatoria tenuis C. Agardh ex Gomont++
16Phormidium inundatum Kützing ex Gomont++
17Rhabdoderma lineare Schmidle & Lauterborn++
EUGLENOPHYCEAE
1Euglena minuta Prescott++
2Lepocinclis buetschlii Lemmermann+
3Lepocinclis ovum (Ehrenberg) Lemmermann++
4Phacus longicauda (Ehrenberg) Dujardin+
5Trachelomonas armata (Ehrenberg) F. Stein++
6Trachelomonas hispida (Perty) F. Stein++
7Trachelomonas cylindracea (Playfair) T.G. Popova+
CONJUGATOPHYCEAE
1Euastrum binale var. gutwinskii (Schmidle) Homfeld+
2Cosmarium laeve Rabenhorst+
DINOPHYCEAE
1Prorocentrum tsawwassenense Hoppenrath & B.S. Leander++

General features of phytoplankton (total abundance and abundance of dominant groups, No_× 104 cell l−1) in both experimental basins

AbundanceBasin I
TotalCyanophyceaeChlorophyceaeBaccillariophyceae
Minimum190903540
Maximum780345270205
Median52525017590
Mean507.3242.3163.794.3
Standard deviation157.169.075.347.8
Coefficient of variation (%)31284651
AbundanceBasin II
TotalCyanophyceaeChlorophyceaeBaccillariophyceae
Minimum215753525
Maximum705380165260
Median32514570105
Mean361.3181.371.3105.0
Standard deviation132.191.230.364.3
Coefficient of variation (%)37504361
DOI: https://doi.org/10.1515/ohs-2018-0025 | Journal eISSN: 1897-3191 | Journal ISSN: 1730-413X
Language: English
Page range: 260 - 274
Submitted on: Nov 24, 2017
Accepted on: Jan 15, 2018
Published on: Sep 21, 2018
Published by: University of Gdańsk
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2018 Abd-Ellatif M. Hussian, Ahmed M. Abd El-Monem, Agnieszka Napiórkowska-Krzebietke, Naser S. Flefil, published by University of Gdańsk
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.