The Jekyll and Hide fish: Phenotype as a determinant of the invasion potential of Polypterus senegalus Cuvier, 1829

Explanatory notes for the data:

probability of entering the labyrinth = binary variable distinguishing whether the individual fish entered the labyrinth throughout the observation period

probability of entering the shelter = binary variable distinguishing whether the individual fish entered the shelter throughout the observation period

boldness = continuous variable describing the time in seconds when individual entered the labyrinth (in case that the individual did not enter it, full time, i.e. 600 s was assigned)

time in shelter = continuous variable expressed in seconds used as a measure of shelter occupancy

lateralization = class variable assigning whether the tested individual used the left or right arm of the labyrinth to reach the shelter

air breathing frequency = number of breathings during the 10-min intervals

interval = class variable taking values from 1 to 6

exploration = number of seconds needed to explore the whole maze (i.e. to get the contact with all antennas in the system)

habitat preference = number of detections within particular artificial channel sectors across the given time interval of one hour

activity = number of artificial channel sectors passed across the given time interval of one hour

light interval = distinguished whether the observations during the time interval occurred during the day or night

probability of eating a food item = binary variable distinguishing whether the individual fish eat a food item during a given time interval or not

phase = class variable describing the phase of the experiment related to the switch of food items

day = class variable assigning every day of the feeding adaptability experiment and reaching the values from 1 to 20