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Retrospective Analysis of Northeast Right Whale Ship Strikes, 1998-2002

Analyzing ship strike incidents involving North Atlantic right whales from 1998 to 2002 to identify trigger events and dynamic management areas, aiming to reduce collisions through vessel traffic management scenarios.

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Retrospective Analysis of Northeast Right Whale Ship Strikes, 1998-2002

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  1. Dynamic Management– NOAA FisheriesRight Whale Ship Strike Strategy Patricia Gerrior Northeast Region

  2. Dynamic Management Areas (DMAs)1998-2002 – Retrospective Analysis • FromVessel Traffic-Management Scenarios Based on Recommended Measures to Reduce Ship Strikes of North Atlantic Right Whales–a report submitted to the NMFS Northeast Implementation Team by B. Russell, A. Knowlton & J.Beaudin Ring, December 2003 • Analysis of sightings from 1998 –2002 (& previous years)

  3. Trigger Events For DMA per Russell, Knowlton & Beaudin Ring, 2003) • Trigger Events : • 3 or more animals • 3 animals w/in 10 nm of each other • mother/calf pair w/in 15 nm of shipping lane • 2 or more animals closer than 10 nm to each other w/in shipping lane if resident or feeding • 1 or more animals in the Cape Cod Canal or any harbor area

  4. Russell, Knowlton& Beaudin Ring, 2003

  5. DMAs (Russell et al, 2003) • Circle with 15nm radius around periphery of sightings • 13 day duration • Addt’l sightings during the DMA in same area, period extended another 13 days

  6. Russell, Knowlton& Beaudin Ring, 2003

  7. 1998 • 4 retrospective DMAs (Boston TSS, GSC/TSS & Providence) • Boston TSS (1) 17 Feb – 2 Mar • Providence (2) 1 Apr – 4 May • GSC/TSS (1) 8 –21 April

  8. Russell, Knowlton& Beaudin Ring, 2003

  9. 1999 • 2 retrospective DMAs (GSC/TSS & Portland approach) • GSC/TSS (1) 1 – 14 April • Portland approach (1) 14 Apr – 2 May

  10. Russell, Knowlton& Beaudin Ring, 2003

  11. 2000 • 9 retrospective DMAs (Boston TSS, GSC/TSS , Portland app. & GOM) • Boston TSS (4) 29 Mar- 1Apr, 29Sept –6 Nov, 19 –31 Dec • GSC/TSS (2) 1-14 Jan , 1-19 April • Portland approach (1) 13 –26 Feb • GOM (2) 8-21 May, 20 June- 12 Jul

  12. Russell, Knowlton& Beaudin Ring, 2003

  13. 2001 • 9 retrospective DMAs (Boston TSS, GSC/TSS, Portland & GOM) • Boston TSS (3) 20 Mar - 1 Apr • GSC/TSS (2) 11-24 April, 19 May –1 June • Portland approach (2) 19 Jul – 1 Aug, 15 –29 Sept • GOM(2) 5 Sept – 20 Oct

  14. Russell, Knowlton& Beaudin Ring, 2003

  15. 2002 • 4 retrospective DMAs (Boston TSS &GSC/TSS) • Boston TSS (3) 17 Feb – 2 Mar • GSC/TSS (1) 5 –18 May

  16. Potential DMAs for Boston Based on 1998 –2002 Analysis (Russell et al, 2003) • Northern approach(GOM) – 16 nm for 16 days/yr • GSC/MA Bay approach – 27nm for 39 days/yr • Southern approach (to/from CCB) – none

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