Extended: Vessel Speed Restriction Zone South of Martha's Vineyard to Protect Right Whales
A voluntary vessel speed restriction zone (Dynamic Management Area - DMA) established south of Martha's Vineyard has been extended to protect an aggregation of three right whales sighted in this area on May 8.
A second DMA nearby protects another aggregation of right whales sighted in this area on May 7.
Mariners are requested to route around these areas or transit through them at 10 knots or less. Whales were spotted in or near shipping lanes so please be especially vigilant when traveling in these areas.
South of Martha's Vineyard, MA DMA -- in effect through May 23, 2019
40 47 N
40 07 N
070 29 W
071 22 W
AND
Southwest of Martha's Vineyard, MA DMA -- in effect through May 22, 2019
40 39 N
39 59 N
070 56 W
071 47 W
 Active Seasonal Management Areas (SMAs)
Mandatory speed restrictions of 10 knots or less (50 CFR 224.105) are in effect in the following areas:
Cape Cod Bay SMA -- in effect through May 15
Great South Channel SMA -- in effect through July 31
More info on Seasonal Management Areas
Right Whales Are Migrating
North Atlantic right whales are on the move along the Atlantic coast of the U.S. With an unprecedented 20 right whale deaths documented in 2017 and 2018, NOAA is cautioning boaters to give these endangered whales plenty of room. We are also asking commercial fishermen to be vigilant when maneuvering to avoid accidental collisions with whales, remove unused gear from the ocean to help avoid entanglements, and use vertical lines with required markings, weak links, and breaking strengths.
Right Whales in Trouble
North Atlantic right whales are protected under the U.S. Endangered Species Act and the Marine Mammal Protection Act. Scientists estimate there are slightly more than 400 remaining, making them one of the rarest marine mammals in the world.
In August 2017, NOAA Fisheries declared the increase in right whale mortalities an “Unusual Mortality Event,” which helps the agency direct additional scientific and financial resources to investigating, understanding, and reducing the mortalities in partnership with the Marine Mammal Stranding Network, Canada’s Department of Fisheries and Oceans, and outside experts from the scientific research community.
More Info
Recent right whale sightings
Find out more about our right whale conservation efforts and the researchers behind those efforts.
Download the Whale Alert app for iPad and iPhone
Acoustic detections in Cape Cod Bay and the Boston TSS
Send a blank message to receive a return email listing all current U.S. DMAs and SMAs.
Details and graphics of all ship strike management zones currently in effect.
Reminder: Approaching a right whale closer than 500 yards is a violation of federal and state law.
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