Section 1 Introduction - National Marine Fisheries Service - NOAA

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NBK at Bangor EHW-1 Pile Replacement Project Final Marine Mammal Monitoring Report Date Sighting Time (hh:mm) Project Name # of Animal(s) Est. Distance to Pile (m) 19-Oct-11 09:48 TPP 1 910 Monitoring Activity Type 30 minute prewatch Notes Resighting. MMO notes indicate that the individual was resting until it entered the water and surfaced outside of the WRA at 09:48. Considered as a re-sighting of the same individual seen at 07:50. It left the area, and did not come back. 20-Oct-11 14:49 TPP 1 N/A No construction New Sighting 21-Oct-11 15:39 EHW-1 1 1330 21-Oct-11 15:40 EHW-1 1 1,360 27-Oct-11 27-Oct-11 27-Oct-11 27-Oct-11 09:56- 10:05 10:07- 10:11 10:15- 10:20 10:23- 10:28 EHW-1 2 1,250 EHW-1 2 1,250 EHW-1 2 1,250 EHW-1 2 1,250 Vibratory pile driving‡ Between two hammer run times Vibratory pile driving Vibratory pile driving Vibratory pile driving Vibratory pile driving New sighting. MMO notes indicate that this was a “large Steller” that hauled out onto a submarine during vibratory driving. Construction shut-down. New Sighting. MMO notes indicate that this was a “small Steller” that was hauled out on a submarine. Hammer was not on during sighting. New Sighting. MMO notes indicate that these individuals were hauled out on a submarine prior to and during pile driving activities. Resighting. Considered as a resighting of the same individuals noted during the 09:56 to 10:05 timeframe because the MMO was watching the same location at all times, and MMO notes did not indicate that new individuals arrived on site. Animal was hauled out during pile driving activities. Resighting. Considered as a resighting of the same individuals noted during the 09:56 to 10:05 timeframe because the MMO was watching the same location at all times, and MMO notes did not indicate that new individuals arrived on site. Animal was hauled out during pile driving activities. Resighting. Considered as a resighting of the same individuals noted during the 09:56 to 10:05 timeframe because the MMO was watching the same location at all times, and MMO notes did not indicate that new individuals arrived on site. Animal was hauled out during pile driving activities. Bangor, Washington 50
NBK at Bangor EHW-1 Pile Replacement Project Final Marine Mammal Monitoring Report Date 27-Oct-11 Sighting Time (hh:mm) 11:26- 11:36 Project Name # of Animal(s) Est. Distance to Pile (m) Monitoring Activity Type EHW-1 2 1,360 Pile extraction 27-Oct-11 11:47 EHW-1 2 1,360 27-Oct-11 12:03- 12:07 Between two hammer run times EHW-1 2 1,360 Pile extraction TOTAL #OF INDIVIDUALS SIGHTED PER PROJECT Notes Resighting. Considered as a resighting of the same individuals noted during the 09:56 to 10:05 timeframe because the MMO was watching the same location at all times, and MMO notes did not indicate that new individuals arrived on site. Animal was hauled out during pile driving activities. Resighting. Considered as a resighting of the same individuals noted during the 09:56 to 10:05 timeframe because the MMO was watching the same location at all times, and MMO notes did not indicate that new individuals arrived on site. Animal was hauled out. Hammer was not on during sighting. Resighting. Considered as a resighting of the same individuals noted during the 09:56 to 10:05 timeframe because the MMO was watching the same location at all times, MMO notes did not indicate that new individuals arrived on site. Animal was hauled out during pile driving activities. TPP: 6 (NO LEVEL B TAKES) EHW-1: 18 (1 LEVEL B TAKE) Notes: ^First day of marine mammal counts at Delta Pier. ‡Incident represents a level B take; fell within the measured 120 dB RMS behavioral harassment zone for vibratory pile driving *First day of Steller sea lion focal follow data collection at Delta Pier. Marine Mammal Sightings and Environmental Conditions Perhaps not surprisingly, most marine mammal sightings were made in calm conditions with low wave height (Figures 10a and 10b). Ninety-five percent (465 of a total 491) of marine mammal sightings were made during Beaufort sea state conditions of 0-2 (winds at or below 6 knots) (see Appendix A for the Beaufort scale). Marine mammal surveys were conducted during sea states no greater than Beaufort 5 (winds at or below 21 knots), and there were zero sightings made in a Beaufort sea state of 5. Ninety percent (444 of a total of 491) of sightings were made when weather conditions were overcast (OC), partly cloudy (PC), or sunny (S). More marine mammals were observed during partly cloudy and overcast conditions than in sunny conditions, likely because of reduced glare on the water. (Note: animal resightings were included in this analysis, since all sightings were considered to be of interest in relation to environmental variables. Therefore, the total number of sightings indicated is slightly higher than the sightings total shown in Table 6). Bangor, Washington 51
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Section 1 Introduction - National Marine Fisheries Service - NOAA

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