Table 1.

Hydrophone deployments used for a) geographical presence and b) interannual differences analysis across the southeast Indian Ocean (SEIO) and the southwest Pacific Ocean (SWPO). Days = number of days data were available. Detector rates = missed call rate, false detection rate, for AUSB and NZB.

Ocean basin	Site name	Location	Instrument depth (m)	Recording dates	Days	Detector rates AUSB (%)	Detector rates NZB (%)
(a) Geographical presence
SEIO	Perth Canyon	−31°54′8.34″S, 115°1′36.42″E	465	February 2010– September 2010	256	7.9, 18.7
SEIO	Bass Strait	−38°33′1.86″S, 141°15′13.92″E	168	February 2010– September 2010	236	8.7, 36.6	0, 99.9
SWPO	Tasman Sea	−32°19′21.72″S, 152°56′40.32″E	147	February 2010– September 2010	233	0, 99.5	4.6, 75.4
SWPO	Tonga	−20°25′44.64″S, 176°47′39.06″W	1,042	February 2009– September 2009	242		0.3, 80.5
SWPO	Samoa	−15°8′30.12″S, 173°44′18.72″W	1,031	February 2010– September 2010	242		0, 100

(b) Interannual differences
SEIO	Perth Canyon	−31°54′8.34″S, 115°1′36.42″E	465	February 2009– June 2012	953	6.7a, 17.6a
SEIO	Bass Strait	−38°33′1.86″S, 141°15′13.92″E	168	May 2009– November 2012	860	9.4a, 21.1a	0, 100
SWPO	Tasman Sea	−32°19′21.72″S, 152°56′40.32″E	147	February 2010–December 2011	506	0, 99.7a	5.8a, 87a
SWPO	Samoa	−15°8′30.12″S, 173°44′18.72″W	1,031	January 2010– August 2011	575		0, 100

^aAverage value for time period.