This dataset is part of:
Hubert, J., Campbell, J. A., and Slabbekoorn H. (2020) Effects of seismic airgun playbacks on swimming patterns and behavioural states of Atlantic cod in a net pen. Mar. Pollut. Bull. 160, 111680. DOI:10.1016/j.marpolbul.2020.111680

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Folder:		   	 1_Raw_tag_detections
Description:	   	 Hourly files with tag detections of all individual fish. These .RAT files are direct output of the HTI model 291 acoustic tag receiver. The files contain a starting time, settings of the tag receiver and all tag signal detections. The latter includes the - direct - received tag emissions, but also reflections of the tag emission, and noise.

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Folder:		   	 2_Cleaned_tag_detections
File: 		   	 e.g. /Fish_3/AT17S013141300.RAT_YAPS_input.csv
Description:	   	 Hourly files with - presumably - valid tag detections, this can serve as input for YAPS (Yet Another Positioning Solver) or TDOA (Time Difference Of Arrival) methods to determine the positions of the fish.

Column headings:
Cycle.center	   	 = The x-th tag emission of this hour.
DateTime	   	 = Date and time (dd-mm-yyy hh:mm:ss).
H1		   	 = Detection time - relative to DateTime - of the 'Cycle.center'-th tag emission by hydrophone 1.
H2			 = Detection time - relative to DateTime - of the 'Cycle.center'-th tag emission by hydrophone 2.
H3			 = Detection time - relative to DateTime - of the 'Cycle.center'-th tag emission by hydrophone 3.
H4			 = Detection time - relative to DateTime - of the 'Cycle.center'-th tag emission by hydrophone 4.

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Folder:			 3_Receiver_positions
File:			 Hydrophone_positions.csv
Description:		 Positions of the hydrophones (tag signal receivers).

Column headings:
Hydrophone		 = Hydrophone ID.
x			 = Position of the hydrophone along the x-axis in the grid in which the fish are detected.
y			 = Position of the hydrophone along the y-axis in the grid in which the fish are detected.
z			 = Position of the hydrophone along the z-axis (vertical with respect to the seafloor) in the grid in which the fish are detected.

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Folder:			 4_Fish_positions
File:			 e.g. Track_Fish_3_sr_2_ds_to_2.csv
Description:		 Positions of individual fish throughout the trials, including several columns with environmental/treatment covariates.

Column headings:
time			 = Date and time (dd-mm-yyy hh:mm:ss) of the fish position.
x			 = Position of the fish along the x-axis in the grid in which the fish are detected.
y			 = Position of the fish along the y-axis in the grid in which the fish are detected.
z			 = Position of the fish along the z-axis (vertical with respect to the seafloor) in the grid in which the fish are detected.
seg			 = Segment ID (YAPS estimated the positions in bins/segments).
t.diff			 = Time difference (s) between two consecutive positions.
z.corr			 = Corrected position of the fish along the z-axis. There was a bias in the original position, so we corrected for this.
speed.2d		 = Swimming speed in the horizontal plane.
speed.3d		 = Three-dimensional Swimming speed in, while using the uncorrected z-position (z).
speed.3d.corr.z		 = Three-dimensional Swimming speed in, while using the corrected z-position (z.corr).
turn_angle.2d		 = Turning angle in the horizontal plane (0 – 180).
tide			 = Tidal hight (0 – 2.5 m).
sun			 = Sun elevation (-0.6 – 0.4; 0 = sunset, < 0 = night, > 0 = day).
Period			 = Treatment period; before, during or after the sound exposure.