This SCHONS_et_al_2021_readme.txt file was generated on 2021-12-07 by Rieke F. Schons. GENERAL INFORMATION 1. Titles of Datasets: "mastersheet growth"; "mastersheet sociality" 2. Author Information A. Name: Rieke Friederike Schons Institution: University of Bonn, Institute for Evolutionary Biology and Ecology Address: An der Immenburg 1, 53121 Bonn Email: schons.rf@gmail.com B. Name: Simon Vitt Institution: University of Bonn, Institute for Evolutionary Biology and Ecology Address: An der Immenburg 1, 53121 Bonn Email: svitt@evolution.uni-bonn.de C. Name: Timo Thünken Institution: University of Bonn, Institute for Evolutionary Biology and Ecology Address: An der Immenburg 1, 53121 Bonn Email: tthuenken@evolution.uni-bonn.de 3. Date of data collection (single date, range, approximate date): 2020-07 to 2020-10 4. Geographic location of data collection: Bonn, Germany SHARING/ACCESS INFORMATION 1. Licenses/restrictions placed on the data: none 2. Publications that cite or use the data: Schons et al. 2021: Resource heterogeneity but not inbreeding affects growth and grouping behaviour in socially foraging juvenile cichlid fish 3. Was data derived from another source? no 4. Recommended citation for this dataset: R Core Team (2020): R: a language and environment for statistical computing. Version 4.0.3. Vienna, Austria: R Foundation for Statistical Computing. https://www.R-project.org. DATA & FILE OVERVIEW 1. Files: The file "mastersheet growth" includes all data used for the analyses concerning juveniles' growth. The file "mastersheet sociality" includes all data used to analyse the shoaling assay and the shoal choice test in the respective eponymous sheets. 2. Are there multiple versions of the dataset? no METHODOLOGICAL INFORMATION 1. Description of methods used for collection/generation of data: see Materials and Methods in Schons et al. 2021: Resource heterogeneity but not inbreeding affects growth and grouping behaviour in socially foraging juvenile cichlid fish 2. Methods for processing the data: Body lengths are mean values based on individual values of each group member. Mean inter-individual distances are mean values of the distance between each pair of fish within the shoal, averaged for the complete trial time of 8 minutes. The standard deviation of inter-individual distances was not used for statistical analyses but to calculate IID CV (coefficient of variation of inter-individual distances). The association preference is a relative value showing preference strength for either of the stimulus shoals. For calculation see Materials and Methods in Schons et al. 2021: Resource heterogeneity but not inbreeding affects growth and grouping behaviour in socially foraging juvenile cichlid fish. 3. Environmental/experimental conditions: Experiments were carried out in the laboratory at the Institute for Evolutionary Biology and Ecology, University of Bonn, Germany. 4. People involved with sample collection, processing, analysis and/or submission: RFS, SV, TT DATA-SPECIFIC INFORMATION FOR: mastersheet growth 1. Number of variables: 17 2. Number of cases/rows: 53 3. Variable List: - shoal ID: an identification code for each shoal. The first number is the family number; the second number states whether it is the first or second clutch of a breeding pair; the letter in the end indicates the treatment: A = homogenous, B = clumped. - clutch: an identification code for the clutch. The numbers are chosen after the same principle as described for shoal ID. - clutch code: an identification code for the clutch, using letters instead of numbers. - feeding treatment: states whether the group was assigned to the homogenous or clumped treatment. - breeding type: states whether the group originates from an inbred (IN) or outbred (OUT) clutch. - family combination: refers to the respective clutches mother's and father's family. For example, one parental fish of clutch 6_1 originated from family "U" and the other one from family "W". This variable was used to correct for repeated use of the same family combinations, which could not be avoided for the inbreeding pairs. - SL mean [number of measurement]: mean standard length of the shoal given in centimetres at the time point of the given measurement. - SL CV [number of measurement]: the coefficient of variation of standard length at the time point of the given measurement. It is a relative value calculated as given in Schons et al. 2021: Resource heterogeneity but not inbreeding affects growth and grouping behaviour in socially foraging juvenile cichlid fish. - SL max [number of measurement]: standard length of the largest fish of the group at the time point of the given measurement. - SL min [number of measurement]: standard length of the smallest fish of the group at the time point of the given measurement. - group size [number of measurement]: refers to the number of fish alive of the respective group at the respective time point. - SL mean measurement 2 BC: Data transformed after Box and Cox (1964), more details given in Materials and Methods of Schons et al. 2021: Resource heterogeneity but not inbreeding affects growth and grouping behaviour in socially foraging juvenile cichlid fish. DATA-SPECIFIC INFORMATION FOR: mastersheet sociality, sheet: shoaling assay 1. Number of variables: 14 2. Number of cases/rows: 32 3. Variable List: - shoal ID: an identification code for each shoal. The first number is the family number; the second number states whether it is the first or second clutch of a breeding pair; the letter in the end indicates the treatment: A = homogenous, B = clumped. - video file name: name of the video file recording the trial. - clutch: an identification code for the clutch. The numbers are chosen after the same principle as described for shoal ID. - group size: the number of fish of the group. - feeding treatment: states whether the group was assigned to the homogenous or clumped treatment. - breeding type: states whether the group originates from an inbred (IN) or outbred (OUT) clutch. - family combination: refers to the respective clutches mother's and father's family. For example, one parental fish of clutch 6_1 originated from family "U" and the other one from family "W". This variable was used to correct for repeated use of the same family combinations, which could not be avoided for the inbreeding pairs. - SL mean measurement 1: mean standard length of the shoal given in centimetres at the time point of the shoaling assay. - SL CV measurement 1: the coefficient of variation of standard length at the time point of the shoaling assay. It is a relative value calculated as given in Schons et al. 2021: Resource heterogeneity but not inbreeding affects growth and grouping behaviour in socially foraging juvenile cichlid fish. - mean IID: the mean inter-individual distance, calculated based on distances between each pair of fish, averaged for the whole trial time. Given in centimetres. - mean IID BC: data transformed after Box & Cox (1964), more details given in Schons et al. 2021: Resource heterogeneity but not inbreeding affects growth and grouping behaviour in socially foraging juvenile cichlid fish. - IID standard deviation: the standard deviation of inter-individual distances based on distances between each pair of fish, given in centimetres. - IID CV: a relative value showing the variation of inter-individual distances within groups. - IID CV BC: data transformed after Box & Cox (1964), more details given in Schons et al. 2021: Resource heterogeneity but not inbreeding affects growth and grouping behaviour in socially foraging juvenile cichlid fish. DATA-SPECIFIC INFORMATION FOR: mastersheet sociality, sheet: shoal choice test 1. Number of variables: 13 2. Number of cases/rows: 40 3. Variable List: - clutch: an identification code for the clutch. The numbers are chosen after the same principle as described for shoal ID. - shoal ID: an identification code for each shoal. The first number is the family number; the second number states whether it is the first or second clutch of a breeding pair; the letter in the end indicates the treatment: A = homogenous, B = clumped. - feeding treatment: states whether the group was assigned to the homogenous or clumped treatment. - breeding type: states whether the group originates from an inbred (IN) or outbred (OUT) clutch. - family combination: refers to the respective clutches mother's and father's family. For example, one parental fish of clutch 6_1 originated from family "U" and the other one from family "W". This variable was used to correct for repeated use of the same family combinations, which could not be avoided for the inbreeding pairs. - SL mean full group: the mean standard length for all fish of the group. - SL mean experimental fish: the mean standard length for only the fish of a group that were used for the shoal choice test (only 7 individuals were used; if a group consisted of 8 individuals, this variable does not include the fish that was exluded from the trial). - total shoaling time: the total time that the focal fish spent in either of the association zones, given in seconds. - association preference: a relative value quantifying the preference for either of the stimulus shoals, calculated as given in Schons et al. 2021: Resource heterogeneity but not inbreeding affects growth and grouping behaviour in socially foraging juvenile cichlid fish - position largest fish: describes whether the largest fish of the group was part of the small or large shoal or was the test fish itself in the shoal choice test. - SL mean small shoal: mean standard length of the fish included in the small stimulus shoal. - SL mean large shoal: mean standard length of the fish included in the large stimulus shoal. - group size: number of individuals alive of the respective group at the time point of the shoal choice test. 4. Specialized formats or other abbreviations used: SL = standard length IID = inter-individual distance CV = coefficient of variation BC = transformed after Box & Cox (1964)