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Rheophilic fish in oxbow lakes of the Warta River – the effect of environmental conditions on habitat selection

Janusz Golski
Janusz Golski
, 
Piotr Pińskwar
Piotr Pińskwar
, 
Maria Jezierska-Madziar
Maria Jezierska-Madziar
, 
Wojciech Andrzejewski
Wojciech Andrzejewski
, 
Jan Mazurkiewicz
Jan Mazurkiewicz
, 
Daniel Stanisławski
Daniel Stanisławski
 et 
Maria Urbańska
Maria Urbańska
   | 06 mars 2017
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Article Category: Original research paper
Publié en ligne: 06 mars 2017
Pages: 38 - 49
Reçu: 25 avr. 2016
Accepté: 01 août 2016
DOI: https://doi.org/10.1515/ohs-2017-0005
© Faculty of Oceanography and Geography, University of Gdańsk, Poland. All rights reserved.
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Figure 1

Location of six oxbow lakes of the Warta River
Location of six oxbow lakes of the Warta River

Figure 2

Dissolved oxygen concentration in the benthic zone in the summer (minimum,maximum, mean); means with the same letter don`t differ statistically
Dissolved oxygen concentration in the benthic zone in the summer (minimum,maximum, mean); means with the same letter don`t differ statistically

Figure 3

Average contribution of rheophilic species to the dominance structure of ichthyofauna in oxbow lakes (A), in the Warta near Pyzdry (B), and in the Warta near Rogalin (C)
Average contribution of rheophilic species to the dominance structure of ichthyofauna in oxbow lakes (A), in the Warta near Pyzdry (B), and in the Warta near Rogalin (C)

Figure 4

Fluctuations in the contribution of rheophilic species in the dominance structure in catches from six oxbow lakes in three periods.
Fluctuations in the contribution of rheophilic species in the dominance structure in catches from six oxbow lakes in three periods.

Figure 5

Fluctuations in the contribution of selected species in the dominance structure of rheophiles from six oxbow lakes in three periods.
Fluctuations in the contribution of selected species in the dominance structure of rheophiles from six oxbow lakes in three periods.

Figure 6

Fluctuations in four traits of all rheophilic species (chub, asp, vimba, nase, dace, ide, blue bream, gudgeon, burbot) in six oxbow lakes throughout the year (Mean, SE, SD)
Fluctuations in four traits of all rheophilic species (chub, asp, vimba, nase, dace, ide, blue bream, gudgeon, burbot) in six oxbow lakes throughout the year (Mean, SE, SD)

Statistical influence of experimental factors on the analyzed traits

Experimental factor DF Analyzed traits
Number of species Number of specimens Mass Mean individual mass
F p F p F p F p
Oxbow lake 5 3.80 0.0075 3.68 0.0088 4.98 0.0015 9.04 0.0001
Season 2 6.02 0.0057 0.65 0.5297 1.65 0.2075 2.79 0.0754
Oxbow lake × Season interaction 10 5.49 0.0001 1.61 0.1454 1.53 0.1712 7.92 0.0001

Fish species recorded in six oxbow lakes (C – constancy of occurrence in all catches; D – percentage in dominance structure; rheophilic species are given in bold)

No Species SW M TR TM T SC C [%] Reproductive guilds, contribution (D%)
1 Leuciscus cephalus 0 + + + 0 + 17 Lithophils, 2.1
2 Aspius aspius + + 0 + + + 44
3 Vimba vimba 0 0 0 + 0 0 4
4 Chondrostoma nasus 0 + 0 0 0 0 2
5 Leuciscus leuciscus 0 0 + 0 + 0 7 Phyto-lithophils, 85.2
6 Leuciscus idus + + + + + + 67
7 Blicca bjoerkna + + + + + + 89
8 Perca fluviatilis + + + + + + 96
9 Gymnocephalus cernuus 0 + + 0 0 + 20
10 Rutilus rutilus + + + + + + 96
11 Alburnus alburnus 0 + + + + + 46
12 Abramis brama + + + + + + 85
13 Abramis ballerus 0 0 0 + 0 + 17
14 Esox lucius + + + + + + 96 Phytophils, 12.1
15 Scardinius erythrophthalmus 0 + + + + + 65
16 Tinca tinca + + + + + + 80
17 Carassius carassius 0 + + 0 + + 30
18 Carassius gibelio 0 + + 0 + + 43
19 Cyprinus carpio 0 0 + 0 0 0 2
20 Misgurnus fossilis 0 + + 0 0 + 6
21 Cobitis taenia + + + + + + 41
22 Silurus glanis + + 0 + 0 0 6
23 Stizostedion lucioperca + + 0 + + + 19
24 Gobio gobio + 0 0 0 0 0 2 Psammophils, 0.1
25 Lota lota + + 0 0 0 0 9 Litho-pelagophils, 0.3
26 Rhodeus sericeus 0 0 + 0 0 0 9 Ostracophils, 0.2
Number of species 13 20 18 16 15 18

Characteristics of oxbow lakes

Oxbow lake Km Area (ha) Maximum length/width (m) Max depth (m) Bottom substrate (%) Submerged vegetation Surroundings (%)
Święte (SW) 409 1.5 570/40 2.5 90S; 10M + 60M; 40SH
Madałowe (M) 359 2.6 620/50 3.5 70M; 20S; 10G ++ 90M; 10F
Tarnowa (TR) 348 1.0 320/60 2.5 60S; 40M +++ 60M; 40SH
Trzykolne Młyny (TM) 278 0.9 280/35 2.0 80M; 20S +++ 70M; 30SH
Tuchoń (T) 278 4.7 1170/90 5.0 50S; 50M ++ 70F; 30M
Święconka (SC) 277 6.0 970/130 4.5 80S; 10G; 10M +++ 40B; 60M
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