- Dataset comprises the data used in the following paper published in the journal of experimental biology, Long duration advertisement calls of nesting male plainfin midshipman fish are honest indicators of size and condition. doi:10.1242/jeb.243889. - Data was collected from 2019-2020 by Sujay Balebail - Open 'Bioacoustic_data_2019-2020.7z' and 'Important_codes.7z' using 7-zip. - The dataset contains overnight acoustic recordings from a hydrophone located on top of the nests of calling type I male plainfin midshipman, it also contains data on morphometric measurements of type I males. See the methods section in doi:10.1242/jeb.243889 for detailed descriptions of the experimental setup, recording procedure, and morphometric parameters measured. - The folders '2019_bioacoustic_data', and '2020_bioacoustic_data' contain acoustic recordings carried out in 2019 and 2020 respectively - The file 'Important_codes.7z' contains MATLAB scripts used for analyzing and plotting figures in the manuscript. - Description of folder '2019_bioacoustic_data' - Each folder named PN19_xx contains two folders, one named 'Overnight_recording' and the other named '1_minute_segment_of_each_advertisent_call'. - Description of folder named 'Overnight_recording' - It has 4 .mp3 files of the recording from the hydrophone placed above the nest of the calling type I male - Files 1-4 are in temporal order - A Readme.txt file contains the start time of each recording - Description of folder named '1_minute_segment_of_each_advertisent_call' - 1 minute segments from approximately the middle of each call produced by the type I male (Please see the methods section in doi:10.1242/jeb.243889 for clarity) - Order of numbering represents the temporal order of calls. For example, a file named '3.mp3' represents the third call made by the type I male during the course of the night. - Description of file named 'Morphometric_data_and_acoustic_recording_dates.xlsx' - It contains data oo morphometric parameters and the dates in which the calling activity of each type I male was recorded, see methods section for details about the description of morphometric parameters. It also contains the serial numbers of the hydrophone and zoom audio recorder capturing the sounds from the tank (See methods methods section in doi:10.1242/jeb.243889). - Description of folder '2020_bioacoustic_data' - Each folder named PN20_xx contains two folders, one named 'Overnight_recording' and the other named '1_minute_segment_of_each_advertisent_call'. - Description of folder named 'Overnight_recording' - It has 4 .mp3 files of the recording from the hydrophone placed above the nest of the calling type I male - Files 1-4 are in temporal order - A Readme.txt file contains the start time of each recording - Description of folder named '1_minute_segment_of_each_advertisent_call' - 1 minute segments from approximately the middle of each call produced by the type I male (Please see the methods section in doi:10.1242/jeb.243889 for clarity) - Order of numbering represents the temporal order of calls. For example, a file named '3.mp3' represents the third call made by the type I male during the course of the night. - Description of folder named 'Calibration_info' - It contains a 'Readme.text' file which contains the calibration factor for converting the voltage units of the hydrophone-zoom recorder into units of pressure amplitude (Pascal) - Description of file named 'Morphometric_data_and_acoustic_recording_dates.xlsx' - It contains data on morphometric parameters and the dates in which the calling activity of each type I male was recorded, see methods section for details about the description of morphometric parameters. It also contains the serial numbers of the hydrophone and zoom audio recorder capturing the sounds from the tank (See methods methods section in doi:10.1242/jeb.243889). - Description of files in 'Important_codes.7z' - It contains the following MATLAB codes ('.m' files). - 'Asymptotic_regression.m'- Fits asymptotic regression models to plots of body condition vs harmonic frequencies using the equation y=fAS−( fAS−I)×e−kx, where y=harmonic frequency ( f0–f10), x=body condition (COND or K), fAS is the asymptotic frequency at higher body condition, I is the intercept and k represents the rate of exponential decay - 'Frequency_spectrum'- Computes the frequency spectrum of an input hum, plotting sound pressure level against the frequencies present in the hum - 'harmonic_decay'- Fits exponential functions of the form y=a×e−bx were fit to a plots of amplitude versus harmonic number (0–10), where a and b are positive constants. The parameter b represents the rate of decline in harmonic amplitude with increase in harmonic number, with larger values representing a steeper decline in the amplitude of higher harmonics relative to the fundamental - 'Power_spectral_density'- Computes the power spectral density of an input hum, plots power/Hz against frequency in Hz - Please cite our manuscript, "Long duration advertisement calls of nesting male plainfin midshipman fish are honest indicators of size and condition. doi:10.1242/jeb.243889", if you use the data for any analysis.