Reducing the risk of lethal ship strikes in national marine - - PowerPoint PPT Presentation

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Mar 27, 2024 173 likes •323 views

Reducing the risk of lethal ship strikes in national marine sanctuaries John Berge Michael Carver Deputy Superintendent Vice President Pacific Merchant Shipping Association Cordell Bank National Marine Sanctuary AIS tracks for commercial

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Reducing the risk of lethal ship strikes in national marine sanctuaries

Michael Carver Deputy Superintendent Cordell Bank National Marine Sanctuary John Berge Vice President Pacific Merchant Shipping Association

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AIS tracks for commercial ships transiting the San Francisco traffic lanes

“NOAA and USCG should pursue the modification of shipping lanes to avoid areas of whale concentration, such as extension

f the proposed western

approach lane beyond the continental shelf edge.”

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GFNMS

1,258 Vessels

CBNMS

876 Vessels

Unique Vessel Type by Sanctuary

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knots

Cargo Vessels Speed in the San Francisco Traffic Lanes

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Cargo Vessels Speed in the San Francisco Traffic Lanes

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The co-occurrence of ship and whales sometimes results in ship strikes

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Large Whale Ship Strikes for CA from NMFS stranding database

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200m

The shelf breaks is a very productive area

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Reduce conflict between vessels and preferred whale habitat

Dransfield et al PRBO and SFSU

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Through the USCG PARS process and the IMO new lanes were established in 2013

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Similar process happened in Southern California and the lane was moved 1nm

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Real-time whale sighting and monitoring network:

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With near real-time data we can implement a Dynamic Management Area

= 12 knot speed request in this traffic lane