Individual phenotypic variability in the behaviour of an aggregative riverine fish is structured along a reactive-proactive axis (THERMOS_FishExp_Behaviour)

High phenotypic diversity should provide populations with resilience to environmental change by increasing their capacity to respond to changing conditions. The aim of this study was to identify whether there is consistency in individual behaviours on a reactive-proactive axis in European barbel Barbus barbus (\"barbel\"), which is a riverine and aggregatory fish that expresses individual differences in its behaviours in nature. This was tested using three sequential experiments in ex-situ conditions that required individuals to leave a shelter and then explore new habitats (‘open-field test’), respond to social stimuli (‘mirror-image stimulation test’) and forage (‘foraging behaviour test’; assessing shy-bold traits). Each suite of experiments was replicated three times per individual. There was high variability in behaviours both within and among individuals. The most repeatable behaviours were latency to exit the shelter, active time in the shelter, and the number of food items consume..., The fish personality experiments were recorded and processed with BORIS software from which the data were extracted., , # Data from: Individual phenotypic variability in the behaviour of an aggregative riverine fish is structured along a reactive-proactive axis

[https://doi.org/10.5061/dryad.jh9w0vtm6](https://doi.org/10.5061/dryad.jh9w0vtm6)

## Description of the data and file structure

The attached databases contain data from the following experiments to study fish behaviour (‘open-field test’, ‘mirror-image stimulation test’, and ‘foraging behaviour test’).

For this purpose, the individuals were tested in aquaria and the experiments were recorded.

The videos were processed with BORIS software where time and frequency values were extracted for the different variables evaluated.

### Files and variables

#### File: THERMOS\_BehavPhen001\_IndividualBudget\_V1.csv

**Description:** 

All time variables were measured in seconds (s)

##### Variables

* **Week:** Week in which the experiment was conducted
* **Date:** Date on which the experiment was conducted
* **CatDate:** Date categorised
* **Hour:** ...