Atlantic Bluefin Tuna (Thunnus thynnus)
Essential Fish Habitat for Atlantic Bluefin
Tuna:
- Spawning, eggs and larvae: In pelagic and near coastal
surface waters from the North Carolina/South Carolina border at 33.5° N, south
to Cape Canaveral, FL from 15 miles from shore to the 200 m isobath; all
waters from offshore Cape Canaveral at 28.25° N south around peninsular
Florida to the U.S./Mexico border from 15 miles from shore to the EEZ
boundary.
- Juveniles/Subadults (<145 cm TL): All inshore and
pelagic surface waters warmer than 12° C of the Gulf of Maine and Cape Cod
Bay, MA from Cape Ann, MA (~42.75° N) east to 69.75° W (including waters of
the Great South Channel west of 69.75° W), continuing south to and including
Nantucket Shoals at 70.5° W to off Cape Hatteras, NC (approximately 35.5° N),
in pelagic surface waters warmer than 12° C, between the 25 and 200 m
isobaths; also in the Florida Straits, from 27° N south around peninsular
Florida to 81° W in surface waters from the 200 m isobath to the EEZ boundary.
- Adults (>145 cm TL): In pelagic waters of the Gulf of
Maine from the 50 m isobath to the EEZ boundary, including the Great South
Channel, then south of Georges Bank to 39° N from the 50 m isobath to the EEZ
boundary; also, south of 39° N, from the 50 m isobath to the 2,000 m isobath
to offshore Cape Lookout, NC at 34.5° N. In pelagic waters from offshore
Daytona Beach, FL (29.5° N) south to Key West (82° W) from the 100 m isobath
to the EEZ boundary; in the Gulf of Mexico from offshore Terrebonne Parish, LA
(90° W) to offshore Galveston, TX (95° W) from the 200 m isobath to the EEZ
boundary.