. 2012 Oct 3;7(10):e46170. doi: 10.1371/journal.pone.0046170

Table 1. List of explanatory variables used in this study for the period May 2008 to May 2011. Details include source and unit of measure for each continuous variable or category levels for categorical predictors (marked ^*).

Explanatory variable	Units/Levels	Resolution	Source
Year^*	year	N/A	Calendar
Day of year	day	1	Julian day calendar
Time of day	h	0.01	Eastern Standard Time
Sea temperature	°C	1	Dive computer
Wind speed	km.h⁻¹	0.01	Weather station #039059 - Australian Bureau of Meteorology
Wind direction	°	0.5	Weather station #039059 - Australian Bureau of Meteorology
Current direction^*	North, South	N/A	Observer
Chlorophyll-a concentration	mg.m⁻³	0.001	7-day means, MODIS data, 1 km resolution
Time relative to high tide	h	0.1	XTide Prediction Server
Tidal range	m	0.1	XTide Prediction Server
Fraction of moon illuminated	N/A	0.01	United States Naval Observatory

Table 1. List of explanatory variables used in this study for the period May 2008 to May 2011. Details include source and unit of measure for each continuous variable or category levels for categorical predictors (marked *).