Bay of Bengal - wikipedia Bay of Bengal Bay of Bengal Map of Bay of Bengal Location South Asia Coordinates 15 ° N 88 ° E ﻿ / ﻿ 15 ° N 88 ° E ﻿ / 15 ; 88 Coordinates : 15 ° N 88 ° E ﻿ / ﻿ 15 ° N 88 ° E ﻿ / 15 ; 88 Type Bay Primary inflows Indian Ocean Basin countries Bangladesh India Indonesia Myanmar Sri Lanka Max. length 2,090 km ( 1,300 mi ) Max. width 1,610 km ( 1,000 mi ) Surface area 2,172,000 km ( 839,000 sq mi ) Average depth 2,600 m ( 8,500 ft ) Max. depth 4,694 m ( 15,400 ft ) The Bay of Bengal ( Bengali : বঙ্গোপসাগর ( bɔŋgopoʃagoɾ ) ) is the northeastern part of the Indian Ocean, bounded on the west and northwest by India on the north by Bangladesh, and on the east by Myanmar and the Andaman and Nicobar Islands of ( India ). Its southern limit is a line between Sri Lanka and the northwesternmost point of Sumatra ( Indonesia ). It is the largest water region called a bay in the world. There are Countries dependent on the Bay of Bengal in South Asia and Southeast Asia. The Bay of Bengal occupies an area of 2,172,000 square kilometres ( 839,000 sq mi ). A number of large rivers flow into the Bay of Bengal : the Ganges - Hooghly, the Padma, the Brahmaputra - Jamuna, the Barak - Surma - Meghna, the Irrawaddy, the Godavari, the Mahanadi, the Brahmani, the Baitarani, the Krishna and the Kaveri. Among the important ports are Chennai, Chittagong, Colombo, Kolkata, Mongla, Paradip Port, Port Blair, Tuticorin, Visakhapatnam and Yangon. Among the smaller ports are Dhamra, Kakinada and Payra. Contents 1 Extent 2 Etymology 3 Rivers 4 Seaports 5 Islands 6 Beaches 7 Oceanography 7.1 Plate tectonics 7.2 Marine geology 7.3 Marine biology, flora and fauna 7.4 Chemical oceanography 7.5 Physical oceanography -- climate 8 Tropical storms and cyclones 9 Historic sites 10 Religious importance 11 Economy 12 Strategic importance 13 Environmental hazards 13.1 Pollution 14 Transboundary issues affecting the marine ecosystem 14.1 Overexploitation of fisheries 14.2 Degradation of critical habitats 14.3 Pollution and water quality 15 History 15.1 British penal colony 16 Marine archaeology 16.1 Famous ships and shipwrecks 17 See also 18 References 19 Further reading 20 External links Extent The International Hydrographic Organization defines the limits of the Bay of Bengal as follows : On the east : A line running from Cape Negrais ( 16 ° 03'N ) in Burma through the larger islands of the Andaman group, in such a way that all the narrow waters between the islands lie eastward of the line and are excluded from the Bay of Bengal, as far as a point in Little Andaman Island in latitude 10 ° 48'N, longitude 92 ° 24'E and thence along the southwest limit of the Burma Sea ( A line running from Oedjong Raja ( 5 ° 32 ′ N 95 ° 12 ′ E ﻿ / ﻿ 5.533 ° N 95.200 ° E ﻿ / 5.533 ; 95.200 ) in Sumatra to Poeloe Bras ( Breuëh ) and on through the Western Islands of the Nicobar Group to Sandy Point in Little Andaman Island, in such a way that all the narrow waters appertain to the Burma Sea ). On the south : Ram Sethu ( between India and Ceylon ( Sri Lanka ) ) and from the southern extreme of Dondra Head ( south point of Ceylon ) to the north point of Poeloe Bras ( 5 ° 44 ′ N 95 ° 04 ′ E ﻿ / ﻿ 5.733 ° N 95.067 ° E ﻿ / 5.733 ; 95.067 ). Etymology The bay gets its name from the historical Bengal region ( The Indian state of West Bengal and modern - day Bangladesh ). In ancient scriptures, this water body may have been referred to as ' Mahodadhi ' ( Sanskrit : महोदधि, lit. great water receptacle ) while it appears as Sinus Gangeticus or Gangeticus Sinus, meaning `` Gulf of the Ganges '', in ancient maps. The other Sanskrit names for Bay of Bengal are ' Vangopasagara ' ( Sanskrit : वङ्गोपसागर, lit. Bengal 's Bay ), also simply called as ' Vangasagara ' ( Sanskrit : वङ्गसागर, lit. Bengal Sea ) and ' Purvapayodhi ' ( Sanskrit : पूर्वपयोधि, lit. Eastern Ocean ). Even today in Bengali and Odia it is known as `` Bongoposagor ''. Rivers Many major Rivers of India flow west to east before draining into the Bay of Bengal. The Ganga is the northernmost of these. Its main channel enters and flows through Bangladesh, where it is known as the Padma River, before joining the Meghna River. However, the Brahmaputra River flows from east to west in Assam before turning south and entering Bangladesh where it is called the Jamuna River. This joins the Padma where upon the Padma joins the Meghna River that finally drains into Bay of Bengal. The Sundarbans mangrove of forest of Bangladesh is a forest at the delta of the Padma, Jamuna and Meghna rivers lies partly in West Bengal and mostly in Bangladesh. The Brahmaputra at 2,948 km ( 1,832 mi ) is the 28th longest River in the world. It originates in Tibet. The Hooghly River, another channel of the Ganga that flows through Calcutta drains into Bay of Bengal. The Padma -- Meghna - Jamuna rivers deposit nearly 1000 million tons of sediment every year. The sediment from these three rivers form the Bengal Delta and the submarine fan, a vast structure that extends from Bangladesh to south of the Equator, is up to 16.5 kilometres ( 10.3 mi ) thick, and contains at least 1,130 trillion tonnes of sediment, which has accumulated over the last 17 million years at an average rate of 665 million tons per annum. The fan has buried organic carbon at a rate of nearly 1.1 trillion mol / yr ( 13.2 million t / yr ) since the early Miocene period. The three rivers currently contribute nearly 8 % of the total organic carbon ( TOC ) deposited in the world 's oceans. Due to high TOC accumulation in the deep sea bed of the Bay of Bengal, the area is rich in oil and natural gas and gas hydrate reserves. Bangladesh can reclaim land substantially and economically gain from the sea area by constructing sea dikes, bunds, causeways and by trapping the sediment from its rivers. Further southwest of Bangladesh, the Mahanadi, Godavari, Krishna and Kaveri Rivers also flow from west to east in South Asia and drain into the Bay of Bengal. Many small rivers also drain directly into the Bay of Bengal ; the shortest of them is the Cooum River at 64 km ( 40 mi ). The Irrawaddy ( or Ayeyarwady ) River in Myanmar flows into the Andaman Sea of the Bay of Bengal and once had thick mangrove forests of its own. Seaports The city of Visakhapatnam in India is a major port of the Bay of Bengal Indian ports on the bay include Kolkata Port, Haldia Port, Chennai, Visakhapatnam, Kakinada, Pondicherry, Dhamra, Gopalpur and Bangladeshi ports on the Bay are Chittagong, Mongla, Payra Port. Islands The islands in the bay are numerous, including the Andaman Islands, Nicobar and Mergui groups of India. The Cheduba group of islands, in the north - east, off the Burmese coast, are remarkable for a chain of mud volcanoes, which are occasionally active. Great Andaman is the main archipelago or island group of the Andaman Islands, whereas Ritchie 's Archipelago consists of smaller islands. Only 37, or 6.5 %, of the 572 islands and islets of the Andaman and Nicobar Islands are inhabited. Beaches The Sunderbans bordering the Bay of Bengal is the largest single block of tidal halophytic mangrove forest in the world. Cox 's Bazar, the longest stretch of beach in the world. Sea Beach Location Cox 's Bazar Bangladesh Kuakata Bangladesh St. Martin 's Island Bangladesh Sonadia Bangladesh Nijhum Dip Bangladesh Inani Bangladesh Teknaf Bangladesh Marina Beach, Chennai India Bakkhali Beach, West Bengal India Digha Beach, West Bengal India Mandarmoni Beach, West Bengal India Tajpur Beach, West Bengal India Shankarpur Beach, West Bengal India Pir Jahania, Odisha India Chandaneswar, Odisha India Chandipur, Odisha India Konarak, Odisha India Puri, Odisha India Gopalpur, Odisha India Bheemili, Andhra Pradesh India RK Beach, Visakhapatnam India Rushikonda, Visakhapatnam India Manginapudi Beach, Andhra Pradesh India Serenity Beach, Pondicherry India Ngapali Myanmar Ngwesaung Myanmar Chaungtha, Pathein Myanmar Sittwe Myanmar Galle Face Sri Lanka Oceanography Plate tectonics The lithosphere of the earth is broken up into what are called tectonic plates. Underneath the Bay of Bengal, which is part of the great Indo - Australian Plate and is slowly moving north east. This plate meets the Burma Microplate at the Sunda Trench. The Nicobar Islands, and the Andaman Islands are part of the Burma Microplate. The India Plate subducts beneath the Burma Plate at the Sunda Trench or Java Trench. Here, the pressure of the two plates on each other increase pressure and temperature resulting in the formation of volcanoes such as the volcanoes in Myanmar, and a volcanic arc called the Sunda Arc. The Sumatra - Andaman earthquake and Asian tsunami was a result of the pressure at this zone causing a submarine earthquake which then resulted in a destructive tsunami. Marine Geology Bay of Bengal near Tenneti Park, Visakhapatnam A zone 50 m wide extending from the island of Ceylon and the Coromandel coast to the head of the bay, and thence southwards through a strip embracing the Andaman and Nicobar islands, is bounded by the 100 fathom line of sea bottom ; some 50 m. beyond this lies the 500 - fathom limit. Opposite the mouth of the Ganges, however, the intervals between these depths are very much extended by deltaic influence. Swatch of No Ground is a 14 km - wide deep sea canyon of the Bay of Bengal. The deepest recorded area of this valley is about 1340 m. The submarine canyon is part of the Bengal Fan, the largest submarine fan in the world. Marine biology, flora and fauna A spinner dolphin in Bay of Bengal Tachypleus gigas in Odisha The Bay of Bengal is full of biological diversity, diverging amongst coral reefs, estuaries, fish spawning and nursery areas, and mangroves. The Bay of Bengal is one of the World 's 64 largest marine ecosystems. Kerilia jerdonii is a sea snake of the Bay of Bengal. Glory of Bengal cone ( Conus bengalensis ) is just one of the seashells which can be photographed along beaches of the Bay of Bengal. An endangered species, the olive ridley sea turtle can survive because of the nesting grounds made available at the Gahirmatha Marine Wildlife Sanctuary, Gahirmatha Beach, Odisha, India. Marlin, barracuda, skipjack tuna, ( Katsuwonus pelamis ), yellowfin tuna, Indo - Pacific humpbacked dolphin ( Sousa chinensis ), and Bryde 's whale ( Balaenoptera edeni ) are a few of the marine animals. Bay of Bengal hogfish ( Bodianus neilli ) is a type of wrass which live in turbid lagoon reefs or shallow coastal reefs. Schools of dolphins can be seen, whether they are the bottle nose dolphin ( Tursiops truncatus ), pantropical spotted dolphin ( Stenella attenuata ) or the spinner dolphin ( Stenella longirostris ). Tuna and dolphins usually reside in the same waters. In shallower and warmer coastal waters the Irrawaddy dolphins ( Orcaella brevirostris ) can be found. The Great Nicobar Biosphere Reserve provides sanctuary to many animals some of which include the saltwater crocodile ( Crocodylus porosus ), giant leatherback sea turtle ( Dermochelys coriacea ), and Malayan box turtle ( Cuora amboinensis kamaroma ) to name a few. Another endangered species royal Bengal tiger is supported by Sundarbans a large estuarine delta that holds a mangrove area in the Ganges River Delta. Chemical oceanography Coastal regions bordering the Bay of Bengal are rich in minerals. Sri Lanka, Serendib, or Ratna -- Dweepa which means Gem Island. Amethyst, beryl, ruby, sapphire, topaz, and garnet are just some of the gems of Sri Lanka. Garnet and other precious gems are also found in abundance in the Indian states of Odisha and Andhra Pradesh. Physical oceanography -- climate From January to October, the current is northward flowing, and the clockwise circulation pattern is called the `` East Indian Current ''. The Bay of Bengal monsoon moves in a northwest direction striking the Nicobar Islands, and the Andaman Islands first end of May, then the north eastern coast of India by end of June. The remainder of the year, the counterclockwise current is southwestward flowing, and the circulation pattern is called the East Indian Winter Jet. September and December see very active weather, season varsha ( or monsoon ), in the Bay of Bengal producing severe cyclones which affect eastern India. Several efforts have been initiated to cope with storm surge. Tropical storms and cyclones Main article : Tropical cyclones in the Bay of Bengal Cyclone Sidr at its peak near Bangladesh A tropical storm with rotating winds blowing at speeds of 74 miles ( 119 kilometres ) per hour is called a cyclone when they originate over the Bay of Bengal ; and called a hurricane in the Atlantic. Between 100,000 and 500,000 residents of Bangladesh were killed because of the 1970 Bhola cyclone. 2017, Severe Cyclonic Storm Mora 2017, Cyclone Maarutha 2016, Very Severe Cyclonic Storm Vardah 2016, Cyclone Nada 2016, Cyclone Kyant 2016, Cyclone Roanu 2015, Cyclone Komen 2014, Very Severe Cyclonic Storm Hudhud 2013, Very Severe Cyclonic Storm Phailin 2013, Cyclone Viyaru 2012, Cyclone Nilam 2011, Very Severe Cyclonic Storm Thane 2010, Very Severe Cyclonic Storm Giri 2009, Very Severe Cyclonic Storm Aila 2008, Very Severe Cyclonic Storm Nargis 2007, Very Severe Cyclonic Storm Sidr 2006, Very Severe Cyclonic Storm Mala 1999, Odisha Super Cyclonic Storm 05B 1996, Konaseema Cyclone 1991, Super Cyclonic Storm 02B 1989, November Typhoon Gay 1985, May Tropical Storm One ( 1B ) 1982, April Cyclone One ( 1B ) 1982, May Tropical Storm Two ( 2B ) 1982, October Tropical Storm Three ( 3B ) 1981, December Cyclone Three ( 3B ) 1980, October Tropical Storm One ( 1B ) 1980, December Unknown Storm Four ( 4B ) 1980, December Tropical Storm Five ( 5B ) 1977, Andhra Pradesh Cyclone ( 6B ) 1971, Cyclone Odisha 1970, November Bhola cyclone The Calcutta cyclone of 1864 : caused a storm surge of 40 feet. Barometer 28.025 inches of mercury. 50,000 direct deaths and 30,000 from disease. The Backergunge cyclone of 1876 : 10 to 30 or 40 feet storm surge. 100,000 direct deaths and 100,000 indirect from disease. The False Point cyclone of 1885 : 22 feet of storm surge. Barometer 27.135 inches of mercury. Historic sites The Shore Temple, a UNESCO World Heritage Site on the shore of the Bay of Bengal The ancient Buddhist heritage sites of Pavurallakonda, Thotlakonda and Bavikonda lie along the coast of Bay of Bengal at Visakhapatnam in India. The remains of the Sri Vaisakheswara Swamy temple lie under the Bay of Bengal. Spokespeople from Andhra University Centre for Marine Archaeology say the temple may be opposite the Coastal Battery. The Jagannath Temple at Puri is the one of the four sacred places in Hindu pilgrimage along with Puri beach on the banks of Bay of Bengal. Mahodadhi was named after Lord Jagannath. Seven Pagodas of Mahabalipuram is the name for Mahabalipuram. Mahabalipuram 's Shore Temple, a World Heritage Site was constructed in the 8th century AD and myth has it that six other temples were built here. One site that has been preserved is Vivekanandar Illam. It was constructed in 1842 by the American `` Ice King '' Frederic Tudor to store and market ice year round. In 1897, Swami Vivekananda 's famous lectures were recorded here at Castle Kernan. The site is an exhibition devoted to Swami Vivekananda and his legacy. Arikamedu is an archaeological site in Southern India, in Kakkayanthope, Ariyankuppam Commune, Puducherry. It is 4 kilometres ( 2.5 mi ) from the capital, Pondicherry of the Indian territory of Puducherry Konark is the home of the Sun Temple or Black Pagoda. This Brahman sanctuary was built of black granite mid-1200 AD and has been declared a World Heritage Site. Ramanathaswamy Temple is at Dhanushkodi, where the Bay of Bengal and the Laccadive sea come together. Religious importance The Bay of Bengal in the stretch of Swargadwar, the gateway to heaven in Sanskrit, in the Indian town of Puri is considered holy by Hindus. Samudra arati or worship of the sea by disciples of the Govardhan Matha at Puri The Samudra arati is a daily tradition started by the present Shankaracharya of Puri 9 years ago to honour the sacred sea. The daily practise includes prayer and fire offering to the sea at Swargadwar in Puri by disciples of the Govardhana matha of the Shankaracharya. On Paush Purnima of every year the Shankaracharya himself comes out to offer prayers to the sea. Economy One of the first trading ventures along the Bay of Bengal was The Company of Merchants of London Trading into the East Indies more commonly referred to as the British East India Company. Gopalpur - on - Sea was one of their main trading centers. Other trading companies along the Bay of Bengal shorelines were the English East India Company and the French East India Company. BIMSTEC Bay of Bengal Initiative for Multi-Sectoral Technical and Economic Cooperation ( BIMSTEC ) supports free trade internationally around the Bay of Bengal between Bangladesh, Bhutan, India, Myanmar, Nepal, Sri Lanka, and Thailand. The Sethusamudram Shipping Canal Project is a new venture proposed which would create a channel for a shipping route to link the Gulf of Mannar with the Bay of Bengal. This would connect India from east to west without the necessity of going around Sri Lanka. Thoni and catamaran fishing boats of fishing villages thrive along the Bay of Bengal shorelines. Fishermen can catch between 26 and 44 species of marine fish. In one year, the average catch is two million tons of fish from the Bay of Bengal alone. Approximately 31 % of the world 's coastal fishermen live and work on the bay. Strategic importance The Bay of Bengal is centrally located in South and Southeast Asia. It lies at the center of two huge economic blocks, the SAARC and ASEAN. It influences China 's southern landlocked region in the north and major sea ports of India and Bangladesh. China, India, and Bangladesh have forged naval cooperation agreements with Malaysia, Thailand and Indonesia to increase cooperation in checking terrorism in the high seas. Image of United States ships participating in the Malabar 2007 naval exercise. Aegis cruisers from the navies of Japan and Australia, and logistical support ships from Singapore and India in the Bay of Bengal took part. Its outlying islands ( the Andaman and Nicobar islands ) and, most importantly, major ports such as Kolkata, Chennai, Visakhapatnam, Tuticorin, Chittagong, and Mongla, along its coast with the Bay of Bengal added to its importance. China has recently made efforts to project influence into the region through tie - ups with Myanmar and Bangladesh. The United States has held major exercises with Bangladesh, Malaysia, Singapore, Thailand and recently India. The largest ever wargame in Bay of Bengal, known as Malabar 2007, was held in 2007 and naval warships from US, Bangladesh, Thailand, Singapore, Japan and Australia took part. India was a participant. Large deposits of natural gas in the areas within Bangladesh 's sea zone incited a serious urgency by India and Myanmar into a territorial dispute. Disputes over rights of some oil and gas blocks have caused brief diplomatic spats between Myanmar and India with Bangladesh. The disputed maritime boundary between Bangladesh and Myanmar resulted in military tensions in 2008 and 2009. Bangladesh is pursuing a settlement with Myanmar and India to the boundary dispute through the International Tribunal on the Law of the Sea. Environmental Hazards Pollution The Asian brown cloud, a layer of air pollution that covers much of South Asia and the Indian Ocean every year between January and March, and possibly also during earlier and later months, hangs over the Bay of Bengal. It is considered to be a combination of vehicle exhaust, smoke from cooking fires, and industrial discharges. Transboundary issues affecting the marine ecosystem This section needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. ( December 2012 ) A transboundary issue is defined as an environmental problem in which either the cause of the problem and / or its impact is separated by a national boundary ; or the problem contributes to a global environmental problem and finding regional solutions is considered to be a global environmental benefit. The eight Bay of Bengal countries have ( 2012 ) identified three major transboundary problems ( or areas of concern ) affecting the health of the Bay, that they can work on together. With the support of the Bay Of Bengal Large Marine Ecosystem Project ( BOBLME ), the eight countries are now ( 2012 ) developing responses to these issues and their causes, for future implementation as the Strategic Action Programme. Overexploitation of fisheries Some small fishing boats are catching fish & sell them in local coastal markets Fisheries production in the Bay of Bengal is six million tonnes per year, more than seven percent of the world 's catch. The major transboundary issues relating to shared fisheries are : a decline in the overall availability of fish resources ; changes in species composition of catches ; the high proportion of juvenile fish in the catch ; and changes in marine biodiversity, especially through loss of vulnerable and endangered species. The transboundary nature of these issues are : that many fish stocks are shared between BOBLME countries through the transboundary migration of fish, or larvae. Fishing overlaps national jurisdictions, both legally and illegally -- overcapacity and overfishing in one location forces a migration of fishers and vessels to other locations. All countries ( to a greater or lesser degree ) are experiencing difficulties in implementing fisheries management, especially the ecosystem approach to fisheries. Bay of Bengal countries contribute significantly to the global problem of loss of vulnerable and endangered species. The main causes of the issues are : open access to fishing grounds ; Government emphasis on increasing fish catches ; inappropriate government subsidies provided to fishers ; increasing fishing effort, especially from trawlers and purse seiners ; high consumer demand for fish, including for seed and fishmeal for aquaculture ; ineffective fisheries management ; and illegal and destructive fishing. Degradation of critical habitats The Bay of Bengal is an area of high biodiversity, with many endangered and vulnerable species. The major transboundary issues relating to habitats are : the loss and degradation of mangrove habitats ; degradation of coral reefs ; and the loss of, and damage to, seagrasses. The transboundary nature of these major issues are : that all three critical habitats occur in all BOBLME countries. Coastal development for several varying uses of the land and sea are common in all BOBLME countries. Trade in products from all the habitats is transboundary in nature. Climate change impacts are shared by all BOBLME countries. The main causes of the issues are : food security needs of the coastal poor ; lack of coastal development plans ; increasing trade in products from coastal habitats ; coastal development and industrialization ; ineffective marine protected areas and lack of enforcement ; upstream development that affects water - flow ; intensive upstream agricultural practices ; and increasing tourism. Pollution and water quality The major transboundary issues relating to pollution and water quality are : sewage - borne pathogens and organic load ; solid waste / marine litter ; increasing nutrient inputs ; oil pollution ; persistent organic pollutants ( POPs ) and persistent toxic substances ( PTSs ) ; sedimentation ; and heavy metals. The transboundary nature of these issues are : discharge of untreated / partially treated sewage being a common problem. Sewage and organic discharges from the Ganges - Brahmaputra - Meghna River are likely to be transboundary. Plastics and derelict fishing gear can be transported long distances across national boundaries. High nutrient discharges from rivers could intensify largescale hypoxia. Atmospheric transport of nutrients is inherently transboundary. Differences between countries with regard to regulation and enforcement of shipping discharges may drive discharges across boundaries. Tar balls are transported long distances. POPs / PTSs and mercury, including organo - mercury, undergo long - range transport. Sedimentation and most heavy metal contamination tend to be localized and lack a strong transboundary dimension. The main causes of the issues are : increasing coastal population density and urbanization ; higher consumption, resulting in more waste generated per person ; insufficient funds allocated to waste management ; migration of industry into BOBLME countries ; and proliferation of small industries. History Ross Island, in the Andamans, was one of the main naval bases of British India during World War II Northern Circars occupied the western coast of the Bay of Bengal and is now considered to be India 's Madras state. Chola dynasty ( 9th century to 12th century ) when ruled by Rajaraja Chola I occupied the western coastline of the Bay of Bengal circa AD 1014, The Bay of Bengal was also called the Chola Lake. The Kakatiya dynasty reached the western coastline of the Bay of Bengal between the Godavari and the Krishna rivers. Kushanas about the middle of the 1st century AD invaded northern India perhaps extending as far as the Bay of Bengal. Chandragupta Maurya extended the Maurya Dynasty across northern India to the Bay of Bengal. Hajipur was a stronghold for Portuguese Pirates. In the 16th century the Portuguese built trading posts in the north of the Bay of Bengal at Chittagong ( Porto Grande ) and Satgaon ( Porto Pequeno ). Before the arrival of British to India it was also known as `` Kalinga Sagar ''. British penal colony Cellular Jail or `` Black Waters '' built in 1896 on Ross Island, a part of the Andaman Island Chain. As early as 1858 this island was used as a British penal colony for political prisoners facing life imprisonment. Marine archaeology Maritime archaeology or marine archaeology is the study of material remains of ancient peoples. A specialized branch, Archaeology of shipwrecks studies the salvaged artifacts of ancient ships. Stone anchors, amphorae shards, elephant tusks, hippopotamus teeth, ceramic pottery, a rare wood mast and lead ingots are examples which may survive the test of time for archaeologists to study and place the salvaged findings into a time line of history. coral reefs, tsunamis, cyclones, mangrove swamps, battles and a criss cross of sea routes in a high trading area combined with pirating have all contributed to shipwrecks in the Bay of Bengal. Famous ships and shipwrecks 1778 to 1783 The Naval operations in the American Revolutionary War or American War of Independence ranged as far as the Bay of Bengal. c. 1816 Mornington ship burned in the Bay of Bengal. 1850 American clipper brig Eagle is supposed to have sunk in the Bay of Bengal. American Baptist missionary Adoniram Judson, Jr. died 12 April 1850 and was buried at sea in the Bay of Bengal. 1855 The Bark `` Incredible '' struck on a sunken rock in the Bay of Bengal. 1865, a gale dismasted the Euterpe while traversing the Bay of Bengal typhoon. 1875 Veleda 76 m ( 250 ft ) long and 15 m ( 50 ft ) wide is a part of a current salvage operation. 1942 Japanese cruiser Yura of the Second Expeditionary Fleet, Malay Force, attacked merchant ships in the Bay of Bengal. 1971 December 3 -- It was claimed that the Indian Navy destroyer, INS Rajput, sunk the Pakistan Navy submarine PNS Ghazi off Visakhapatnam, in the Bay of Bengal. See also Andhra Pradesh Bangladesh Myanmar Odisha West Bengal References This article incorporates text from a publication now in the public domain : Chisholm, Hugh, ed. ( 1911 ). `` Bengal, Bay of ''. Encyclopædia Britannica ( 11th ed. ). Cambridge University Press. 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Jump up ^ The Portuguese in Bengal. History of Ugolim ( Hoogli ), Meliapore... Archived 3 February 2007 at the Wayback Machine. URL accessed 21 January 2007 Jump up ^ Odisha Government, e-magazine. `` Universal Brotherhood and the Temple of Lord Jagannath at Paradip '' ( PDF ). Retrieved 6 February 2013. Jump up ^ `` History of Andaman Cellular Jail : Recapture of Andaman Islands to keep Political Prisoners ''. AndamanCellularJail.org. Archived from the original on 13 January 2007. Retrieved 6 August 2010. Jump up ^ Marine Archaeology in India URL accessed 22 January 2007 Jump up ^ Shipwrecks 1816 -- 1818 URL accessed 10 January 2015 Jump up ^ The Maritime Heritage Project : Gold Rush Ships, Passengers, Captains URL accessed 23 January 2007 Jump up ^ Shipping Notes from the 1800s -- P.E.I. URL accessed 23 January 2007 Jump up ^ Diving-News.com '' Wrecks URL accessed 23 January 2007 Further reading The Maritime Boundary Dispute Between Bangladesh and Myanmar : Motivations, Potential Solutions, and Implications by Jared Bissinger ( Asia Policy, July 2010 ) published by National Bureau of Asian Research External links Look up Bay of Bengal in Wiktionary, the free dictionary. Wikimedia Commons has media related to Bay of Bengal. Myanmar Marine Biodiversity Atlas Online 487 V. Suryanarayan, Prospects for a Bay of Bengal Community Arabian Sea : depth contours and undersea features -- Map / Still -- Britannica Concise Bay of Bengal in Encyclopedia Bay of Bengal Large Marine Ecosystem Project Earth 's oceans and seas Arctic Ocean Amundsen Gulf Barents Sea Beaufort Sea Chukchi Sea East Siberian Sea Greenland Sea Gulf of Boothia Kara Sea Laptev Sea Lincoln Sea Prince Gustav Adolf Sea Pechora Sea Queen Victoria Sea Wandel Sea White Sea Atlantic Ocean Adriatic Sea Aegean Sea Alboran Sea Archipelago Sea Argentine Sea Baffin Bay Balearic Sea Baltic Sea Bay of Biscay Bay of Bothnia Bay of Campeche Bay of Fundy Black Sea Bothnian Sea Caribbean Sea Celtic Sea English Channel Foxe Basin Greenland Sea Gulf of Bothnia Gulf of Finland Gulf of Lion Gulf of Guinea Gulf of Maine Gulf of Mexico Gulf of Saint Lawrence Gulf of Sidra Gulf of Venezuela Hudson Bay Ionian Sea Irish Sea Irminger Sea James Bay Labrador Sea Levantine Sea Libyan Sea Ligurian Sea Marmara Sea Mediterranean Sea Myrtoan Sea North Sea Norwegian Sea Sargasso Sea Sea of Åland Sea of Azov Sea of Crete Sea of the Hebrides Thracian Sea Tyrrhenian Sea Wadden Sea Indian Ocean Andaman Sea Arabian Sea Bali Sea Bay of Bengal Flores Sea Great Australian Bight Gulf of Aden Gulf of Aqaba Gulf of Khambhat Gulf of Kutch Gulf of Oman Gulf of Suez Java Sea Laccadive Sea Mozambique Channel Persian Gulf Red Sea Timor Sea Pacific Ocean Arafura Sea Banda Sea Bering Sea Bismarck Sea Bohai Sea Bohol Sea Camotes Sea Celebes Sea Ceram Sea Chilean Sea Coral Sea East China Sea Gulf of Alaska Gulf of Anadyr Gulf of California Gulf of Carpentaria Gulf of Fonseca Gulf of Panama Gulf of Thailand Gulf of Tonkin Halmahera Sea Koro Sea Mar de Grau Molucca Sea Moro Gulf Philippine Sea Salish Sea Savu Sea Sea of Japan Sea of Okhotsk Seto Inland Sea Shantar Sea Sibuyan Sea Solomon Sea South China Sea Sulu Sea Tasman Sea Visayan Sea Yellow Sea Southern Ocean Amundsen Sea Bellingshausen Sea Cooperation Sea Cosmonauts Sea Davis Sea D'Urville Sea King Haakon VII Sea Lazarev Sea Mawson Sea Riiser - 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Question: is bay of bengal a sea or ocean
Answer: Ocean