90-day Monitoring Report - National Marine Fisheries Service - NOAA

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Record No. Date Time (UTC) UME04085 R.V Marcus G. Langseth L-DEO/NMFS 05 January 2012 Species Group Size 23 14-Sep 03:41 Bearded seal 1 24 14-Sep 04:00 Bearded seal 2 25 14-Sep 04:40 Pacific walrus 1 26 14-Sep 05:21 Bearded seal 1 27 14-Sep 06:15 Pacific walrus 1 28 17-Sep 17:48 Pacific walrus 2 29 18-Sep 23:23 Ringed seal 1 30 22-Sep 19:49 Ringed seal 1 31 22-Sep 20:22 Ringed seal 1 32 23-Sep 00:10 Ringed seal 1 Vessel Position 72.37173°N 165.38413°W 72.40097°N 72.40097°N 72.47493°N 165.29678°W 72.52540°N 165.25353°W 72.59523°N 165.19360°W 73.28717°N 162.43527°W 75.44312°N 167.08505°W 76.74380°N 165.26563°W 76.78153°N 165.40962°W 76.94927°N 165.46590°W Source Activity Initial Detection Firing full power Firing full power Firing full power Firing full power Firing full power Firing full power Firing full power Firing full power Firing full power Firing full power 52 Movement/ Behaviour AV FT DI PV/OD BA FT PE/AH NS AV NS MI R NS AV MI DI NS PV/SD PO AV PV/SD NS AV NS DI AV FT DI CPA Source / Source Activity 155m Full power 1089m Full power 500m Full power 300m Full power 1000m Full power 350m Full power 180m Full power 190m Full power 75m Mitigation 190m Full power Mitigation Action Power down None None None None None None None Power down None Comments Seal exposed to 190 dB received sound. Last seen inside safety radius, waited 15 min. before resuming operations. Seal exposed to 160 dB received sound. Walrus exposed to 160 dB received sound. Seal exposed to 160 dB received sound. Walrus exposed to 160 dB received sound. Walruses exposed to 160 dB received sound. Seal exposed to 160 dB of received sound. Seal exposed to 160 dB of received sound. Seal last seen inside safety radius at 20:24 UTC. Ramp up required to resume operations. Seal exposed to 160 dB of received sound.
Record No. Date Time (UTC) UME04085 R.V Marcus G. Langseth L-DEO/NMFS 05 January 2012 Species Group Size 33 25-Sep 17:59 Unid. pinniped 1 34 26-Sep 00:25 Unid. pinniped 1 35 26-Sep 00:47 Pacific Walrus 5 36 30-Sep 19:14 Ringed seal 1 37 3-Oct 03:05 Dead mammal 1 38 3-Oct 04:30 Unid. pinniped 1 39 5-Oct 22:37 Pacific walrus 2 40 6-Oct 02:46 Pacific walrus 3 41 7-Oct 04:25 Unid. cetacean 1 42 8-Oct 20:24 Unid. pinniped 1 43 9-Oct 00:14 Common minke whale 1 Vessel Position 76.41627°N 162.68020°W 76.05100°N 161.63617°W 76.02570°N 161.77448°W 73.97260°N 163.86635°W 73.29735°N 164.45237°W 73.20833°N 164.99258°W 69.33948°N 167.62983°W 68.60357°N 167.78182°W 64.21035°N 168.40312°W 57.03450°N 167.41740°W 56.38348°N 56.38348°N Source Activity Initial Detection Firing full power Firing full power Firing full power Firing full power Firing full power Firing full power *Note that in the report sometimes Detection number 37, the dead mammal, was not counted. 53 Movement/ Behaviour AV NS DI AV NS ST ST AV NS DI n/a n/a AV FT DI Not firing AV NS DI Not firing MI NS MI Not firing PV/SD DI Not firing UN DI Not firing PV/OD NS DI CPA Source / Source Activity 300m Full power 224m Full power 1535m Full power 230m Full power 300m Full power 180m Mitigation firing 150m Not firing 200m Not firing 125m Not firing 150m Not firing 140m Not firing Mitigation Action None None Comments Seal exposed to 160 dB of received sound. Airguns firing full power during line change. Seal exposed to 160 dB of received sound. None Walruses hauled out on ice. None None Power down None None None None None Seal exposed to 160 dB of received sound. Deceased animal (likely a seal) observed passing along port side of vessel. Clear signs of decay and possible predation. Seal last seen inside safety radius at 04:31 UTC. Ramp up required to resume operations. Observed while in transit. No gear deployed. Observed while in transit. No gear deployed. Observed while in transit, possibly a Stejneger’s beaked whale. Observed while in transit. No gear deployed. Observed while in transit. No gear deployed.
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Protected Species Mitigation and Mo
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UME04085 R.V Marcus G. Langseth L-D
Page 5 and 6: 1. EXECUTIVE SUMMARY The National S
Page 7 and 8: Figure 1. Location of the Coakley m
Page 9 and 10: 3. MITIGATION AND MONITORING METHOD
Page 11 and 12: day for a total of five to seven ho
Page 13 and 14: Acoustic monitoring for marine mamm
Page 15 and 16: 4. MONITORING EFFORT SUMMARY 4.1. S
Page 17 and 18: Survey Line UME04085 R.V Marcus G.
Page 19 and 20: UME04085 R.V Marcus G. Langseth L-D
Page 21 and 22: minutes of simultaneous visual and
Page 23 and 24: 50 40 30 20 10 0 UME04085 R.V Marcu
Page 25 and 26: Number of Detections 12 10 8 6 4 2
Page 27 and 28: Figure 13. Cetacean spatial distrib
Page 29 and 30: September. Each sighting involved o
Page 33 and 34: 6.1. MARINE MAMMALS KNOWN TO HAVE B
Page 35 and 36: 6.1.1. Spotted seal There were thre
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Page 41 and 42: (iii). The data listed under Condit
Page 43 and 44: (iii). Monitor radio frequencies an
Page 46 and 47: Attachments Table 1. Exclusion Zone
Page 52 and 53: Figure D.20: Hydrophone cable secur
Page 54 and 55: Record No. Date Time (UTC) 1 8-Sep
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90-day Monitoring Report - National Marine Fisheries Service - NOAA

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