Table 1 Overview of the data collection at the RDSM.

From: Towards automated long-term acoustic monitoring of endangered river dolphins: a case study in the Brazilian Amazon floodplains

Recording site

Habitat type

Recorder

Latitude / longitude

Start / end date

Sampling Frequency(kHz)

Duty cycle

Recording duration (h)

Research lodge

River channel

Providence node

3°3′41.81″S

2019-06-23

128

Continuous

2121

64°50′48.59″W

2020-06-13

Boca

Bay

SM4

3° 7′9.60″S

2019-11-05

96

1 on/9 off

393

64°47′30.88″W

2020-04-29

Araçazinho

Internal lake

SM4

2°59′1.34″S

2019-07-09

192

1 on/9 off

139

64°51′3.28″W

2019-09-05

Juruazinho

Flooded forest

SM4

3°2′34.69″S

2019–07-09

192

1 on/9 off

139

64°51′6.07″W

2019-09-05

Rato

Flooded forest

SM4

3°2′47.18″S

2019-02-06

96

10 on/110 off

139

64°51′22.13″W

2019-05-29

Multiple boat-based surveys

River channel, bay, internal lakes

Sound Trap

Multiple sites within MSDR

2019-06-01

512

Continuous during survey

83

2020-05-01