AUTHOR=Harrison Lisa-Marie K. , Cox Martin J. , Skaret Georg , Harcourt Robert 

TITLE=The R package EchoviewR for automated processing of active acoustic data using Echoview

JOURNAL=Frontiers in Marine Science

VOLUME=2

YEAR=2015

URL=https://www.frontiersin.org/journals/marine-science/articles/10.3389/fmars.2015.00015

DOI=10.3389/fmars.2015.00015

ISSN=2296-7745

ABSTRACT=<p>Acoustic data is time consuming to process due to the large data size and the requirement to often undertake some data processing steps manually. Manual processing may introduce subjective, irreproducible decisions into the data processing work flow, reducing consistency in processing between surveys. We introduce the R package <italic>EchoviewR</italic> as an interface between R and Echoview, a commercially available acoustic processing software package. <italic>EchoviewR</italic> allows for automation of Echoview using scripting which can drastically reduce the manual work required when processing acoustic surveys. This package plays an important role in reducing subjectivity in acoustic data processing by allowing exactly the same process to be applied automatically to multiple surveys and documenting where subjective decisions have been made. Using data from a survey of Antarctic krill, we provide two examples of using <italic>EchoviewR</italic>: krill biomass estimation and swarm detection.</p>