Buzzards Bay is a bay of the Atlantic Ocean adjacent to the U.S. state of Massachusetts. It is approximately 28 miles (45 kilometers) long by 8 miles (twelve kilometers) wide. It is a popular destination for fishing, boating, and tourism. Since 1914, Buzzards Bay has been connected to Cape Cod Bay by the Cape Cod Canal. In 1988, under the Clean Water Act, the Environmental Protection Agency and the State of Massachusetts designated Buzzards Bay to the National Estuary Program, as "an estuary of national significance" that is threatened by pollution, land development, or overuse.
It is surrounded by the Elizabeth Islands on the south, by Cape Cod on the east, and the southern coasts of Bristol and Plymouth counties in Massachusetts to the northwest. To the southwest, the bay is connected to Rhode Island Sound. The city of New Bedford, Massachusetts is a historically significant port on Buzzards Bay; it was the world's most successful whaling port during the early- and mid-19th century.
Buzzards Bay was created during the latter portion of the Pleistocene epoch through the interplay of glacial and oceanic processes. Beginning fifty thousand to seventy thousand years ago, the edges of the continental ice sheet covering much of North America began to fluctuate, leaving moraines to mark the former extent of the receded ice. One such moraine forms Cape Cod, which is most of the eastern shoreline of Buzzards Bay.
In addition to the moraines, the melting ice sheet produced extensive outwash plains composed of mixed sediments and ice that bordered the bay to the northwest and west. Melting ice blocks in the outwash deposits formed distinctive circular features called kettle lakes. Numerous examples of kettle lakes can be found to the northwest of the Cape Cod Canal. Finally, waters released from the melting ice sheet raised sea level by sixty to one-hundred-twenty meters (198–396 feet) and drowned preexisting outwash channels. Toward the end of the last ice age, fifteen thousand years ago until about six thousand years ago, Buzzards Bay was still dry land. (See Progression of sea-level change in Atlantic Canada.) During the past six thousand years, sea level has risen an average of one foot per century, and until about four thousand years ago, the landward boundary of Buzzards Bay extended only to about the current thirty-foot bathymetic contour, forming a coastline two-thirds of the way up the current bay, between West Falmouth and Mattapoisett.
The bay's current configuration, a well-mixed central bay and fringing shallow drowned-river valleys, with their shallow depth, tidal action, and surface waves, promotes mixing of the estuarine waters to create a productive aquatic ecosystem. Like many estuaries, however, increasing development and land-use changes by the surrounding communities are accompanied by nutrient runoff leading to eutrophication (an increase in nutrient levels leading to oxygen depletion) in the smaller embayments. Decreases in eelgrass, scallops, and herring have also been noted, but direct cause-and-effect relationships are not clear. Coordinated management efforts in Buzzards Bay have helped to decrease shellfish closures, conserve habitat for sea birds, and preserve open space.
The name was given to this bay by colonists who saw a large bird that they called a buzzard near its shores. The bird was actually an osprey, and after a DDT-fueled downturn, today increasing numbers of osprey breed along the shores of the bay thanks to restoration efforts led by the Buzzards Bay Coalition and longtime Westport residents Gil and Josephine Fernandez.
The bay was the location of one of only three documented fatal shark attacks in the state's history in 1936.
In 1987, researchers from the Woods Hole Oceanographic Institution experimented with a new growth structure allowing Blue mussels to grow above the Benthic Turbidity Zone leading to a new commercial scale mariculture technique.
The Buzzard's Bay disaster happened on April 27, 2003 in Buzzard's Bay, Massachusetts. An oil spill destroyed much of the shellfish business and killed many birds. 98,000 gallons of oil leaked from a barge.
- Amrita Island
- Bassetts Island
- Bird Island
- Elizabeth Islands
- Gull Island
- Monohansett Island
- Onset Island
- West Island
- Wickets Island
- List of islands of Massachusetts for a more-or-less complete listing of the islets, rocks, and ledges within the bay.
- "The Environmental Protection Agency and the Massachusetts Executive Office of Environmental Affairs Designate BUZZARDS BAY to the National Estuary Program" (PDF). Buzzards Bay National Estuary Program. 29 January 1988. Retrieved 1 June 2012.
- "Coalition for Buzzards Bay Buzz: Creature Feature – The Osprey Heralds Spring". www.southcoasttoday.com. 6 June 2008. Retrieved 2013-05-15.
- Hampson, GR; Rhoads, DC; Clark, DW. "Benthic mariculture and research rig developed for diver operations". In: Lang, MA; Jaap, WC (ed). Diving for Science…1989. Proceedings of the American Academy of Underwater Sciences annual scientific diving symposium 28 September - 1 October 1989 Wood Hole Oceanographic Institution, Woods Hole, Massachusetts, USA. Retrieved 2013-03-07.
- Buzzards Bay Oil Spill: Bouchard Barge No. 120
- The Buzzards Bay watershed.
- The Buzzards Bay National Estuary Program.
- 1906 Bird's Eye View of Buzzards Bay
- The Coalition for Buzzards Bay
- Sailing Buzzards Bay: Photographs