[MARMAM] New publication on estimating vessel presence in Australian Marine Parks and compliance/surveillance implications

Logan Kline logan.kline1997 at gmail.com
Wed Jul 29 06:53:59 PDT 2020


My co-authors and I are excited to announce the publication of our new
paper in Marine Policy. This project was the result of a partnership
between NOAA NEFSC Passive Acoustics Group in Woods Hole, MA, USA and Parks
Australia in Canberra, ACT, Australia.

Sleuthing with sound: Understanding vessel activity in marine protected
areas using passive acoustic monitoring.

Logan R. Kline, Annamaria I. DeAngelis, Candace McBride, Giverny G.
Rodgers, Timothy J. Rowell, Jeremy Smith, Jenni A. Stanley, Andrew D. Read,
and Sofie M. Van Parijs.

Marine Policy: https://doi.org/10.1016/j.marpol.2020.104138

Abstract:

Monitoring compliance and enforcing laws are integral to ensuring the
success of marine protected areas (MPAs), but traditional monitoring
techniques are costly and resource demanding. Three SoundTrap 300 recorders
were deployed for one month between 1 July and September 12, 2018 to
collect acoustic data in two marine parks off southeastern Australia: one
recorder in Cod Grounds Marine Park (CGMP) and two in the Solitary Islands
Marine Park National Park Zone (SIMP NPZ). Extractive activities such as
fishing are not permitted in these zones. Raven Pro 2.0 was used to analyze
data for vessel presence. Transmission loss equations for each site were
generated using patrol boat GPS tracks and used to predict if acoustically
recorded vessels were inside park boundaries based on received sound
levels. In CGMP, 41 vessels were predicted within the park during the
recording period; 34 vessels were predicted within the SIMP NPZ. Thursdays
and Saturdays were identified as peak days for vessel presence in CGMP
while Thursdays were the peak day in the SIMP NPZ. Most vessel activity at
both locations took place between 06:00 and 17:00 AEST. Peak vessel
presence in CGMP occurred at 09:00 AEST while the peak vessel presence in
the SIMP NPZ occurred at 16:00 AEST. Approximately 12.7 h of vessel sounds
were recorded within CGMP; approximately 3.8 h of vessel noise were
recorded within the SIMP NPZ. Passive acoustic monitoring of vessel
patterns in Australian Marine Parks has provided valuable insight to
redirect compliance decisions on how to focus surveillance efforts.

This is an open access article and should be available to all, but please
e-mail Logan R. Kline at logan.kline at maine.edu with PDF requests.

Thank you,
Logan R. Kline
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