Skip to main content
Have a personal or library account? Click to login
Exploration in a behaviourally diverse potamodromous fish is not influenced by changes in feeding predictability Cover

Exploration in a behaviourally diverse potamodromous fish is not influenced by changes in feeding predictability

Open Access
|Jun 2026

Figures & Tables

Figure 1

Feeding scheme (A) random and (B) predictable of European barbel B. barbus (Linnaeus, 1758); (C) design of experiment arena with an acclimation site equipped with a shelter separated by a sliding door from the OA and artificial plant barrier. OA, open arena.

Figure 2

Changes in condition factor between the initial and final status of the tested barbels B. barbus (Linnaeus, 1758) (N = 26 and N = 28 for random and predictable, respectively). Significant difference is marked by an asterisk. Boxplots display the median (bold line), IQR (box edges), and whiskers extending to the most extreme values within 1.5 × IQR. Individual data points are shown as jittered dots. IQR, interquartile range.

Figure 3

Time spent in/around the shelter (A) and time spent active in the experimental arena (B) by tested fish in the first and second experiments. Boxplots display the median (bold line), IQR (box edges), and whiskers extending to the most extreme values within 1.5 × IQR. Individual data points are shown as jittered dots. IQR, interquartile range.

Results of the experiments conducted on barbel B_ barbus under two feeding patterns: random and predictable_

Fish IDInitial patternK1K2Shelter1Shelter2Activity1Activity2Exploratory
17413random1.0020.867190.000.301.000.700.00
17478random1.09860.980190.501.000.000.000.00
17473random0.96741.052451.001.000.000.000.00
17454random0.97140.78390.030.730.000.271.00
17416random0.99560.931840.000.820.000.181.00
17437random1.05271.036841.000.150.000.751.00
17410random1.19650.982511.000.580.000.221.00
17470random1.1081.029060.000.380.950.580.00
17461random0.96190.909991.000.300.000.701.00
17434random0.77370.920271.001.000.000.000.00
17485random1.05670.779820.100.450.900.550.00
17472random0.86450.991251.001.000.000.000.00
17453random1.03891.01780.000.870.000.131.00
17486random1.01690.872380.850.820.150.180.00
17419random0.96491.028741.000.970.000.030.00
17463random1.01281.123561.000.570.000.431.00
17475random0.90871.011721.001.000.000.000.00
17443random0.8851.052661.001.000.000.000.00
17433random0.87931.107121.001.000.000.000.00
17488random1.07420.887780.000.530.900.470.00
17487random0.79240.864310.980.970.000.030.00
17411random0.98781.07760.680.270.130.730.00
17496random0.88410.906661.000.520.000.201.00
17422random0.99751.074950.471.000.530.00–1.00
17495random0.81480.672210.670.430.280.500.00
17498random0.85551.043090.881.000.070.00–1.00
30848predictable0.96451.092741.000.120.000.531.00
30867predictable0.84081.001051.001.000.000.000.00
30882predictable1.06171.066850.751.000.000.000.00
30811predictable0.91411.049340.001.000.000.000.00
30895predictable1.03891.114741.001.000.000.000.00
30886predictable0.9640.690980.000.770.000.231.00
30849predictable1.03910.981050.950.930.030.000.00
30856predictable1.0981.093450.850.000.050.921.00
30815predictable0.90441.109941.000.280.000.721.00
30872predictable0.83860.946161.001.000.000.000.00
30835predictable0.95251.023440.350.020.650.980.00
30889predictable0.9281.107120.130.170.000.481.00
30830predictable0.94371.140110.000.781.000.220.00
30875predictable0.89971.050070.601.000.400.00–1.00
30831predictable0.91781.043091.001.000.000.000.00
30884predictable0.92861.034240.000.000.000.000.00
30864predictable1.08341.023321.000.830.000.171.00
30839predictable0.911.099590.131.000.670.00–1.00
30809predictable0.9251.037640.871.000.100.00–1.00
30804predictable0.95281.174070.301.000.700.00–1.00
30828predictable0.93290.969480.030.700.070.181.00
30881predictable0.99131.001950.001.000.000.000.00
30822predictable0.87420.942720.001.000.000.000.00
30877predictable0.76140.940941.001.000.000.000.00
30868predictable0.9640.690981.000.820.000.181.00
30894predictable0.99741.05140.571.000.430.00–1.00
30858predictable1.03361.120770.470.200.530.800.00
30869predictable0.94461.068541.001.000.000.000.00

Summary of Gaussian GLM to model exploratory behaviour of barbel B_ barbus (Linnaeus, 1758) as a function of initial feeding pattern assigned (random/predictable) and condition factor_

Model parameterEstimateSEp
Intercept(random)0.06880.0660.301
Initial pattern(predictable)0.02410.1000.810
Condition0.23700.4860.612
Initial pattern(predictable):Condition–1.12450.7180.117
DOI: https://doi.org/10.26881/oahs-2026.1.14 | Journal eISSN: 1897-3191 | Journal ISSN: 1730-413X
Language: English
Page range: 133 - 144
Submitted on: Mar 20, 2026
Accepted on: May 11, 2026
Published on: Jun 17, 2026
Published by: University of Gdańsk
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2026 Dagmara Błońska, Simone Cittadino, Ali Serhan Tarkan, Demetra Andreou, J. Robert Britton, published by University of Gdańsk
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.