Based on https://github.com/ElOceanografo/EchoMetrics
Urmy, S.S., Horne, J.K., and Barbee, D.H., 2012. Measuring the vertical distributional variability of pelagic fauna in Monterey Bay. ICES Journal of Marine Science 69 (2): 184-196. http://icesjms.oxfordjournals.org/cgi/content/full/fsr205?ijkey=tSU0noNUWz4bj57&keytype=ref
This is a work in progress and is not yet fully implemented or tested.
See the examples directory for more info.