CCS - MV Bluefin 2018 V02 Bioacoustics

This bio-acoustic data was collected during a November 2018 voyage on the Australian Maritime College training vessel MV Bluefin as part of the Carbon Capture and Storage project. The survey was conducted in the nearshore of the Gippsland region. See voyage report \n\nFour frequency bio-acoustic water column and seafloor backscatter. \nSimrad 38 kHz and 120 kHz echosounders are part of the Bluefin’s installed instrument suite. The 70 and 200 kHz echosounders are a temporary installation for this voyage. The transducers were mounted in a custom flange attached to the bottom of the vessel. 30 m transducer extension cables connect to the topside Simrad WBT Tube transceiver. Data was acquired using Simrad EK80 Version 1.12 software logging at EK60 resolution. Acoustic data were recorded in local time. \n\nEchosounder details:\nEchosounder | Frequency | Mode | Transceiver Serial no | Transducer Model & serial No | Comments\nSimrad EK60 | 38 kHz | CW | - | ES38B, SN30333 | Using CSIRO EK60 GPT on loan as MV Bluefin GPT was faulty. \nSimrad EK60 | 120 kHz | CW | - | ES120-7C, 120 | -\nSimrad WBT Tube | 70 kHz | CW | 253692 | ES70-CD, SN 127 | -\nSimrad WBT Tube | 200 kHz | CW | 253687 | ES200-CDK SN 124 | -\n\n\nSurvey settings:\nFrequency (kHz) | Power | Pulse duration (ms) | Logging Range (m)\n38 | 200* | 1.024 | 40\n70 | 50* | 1.024 | 40\n120 | 50 | 1.024 | 40\n200 | 45 | 1.024 | 40\n\nBio-acoustic system was calibrated using the standard sphere method for survey settings on 14th of November 2018 at the CCS study sitde.. See separated calibration report:\n\nBluefin November 14th 2018 Acoustic calibration report.docx\n