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Ross Sea

The Ross Sea is a deep bay of the Southern Ocean in Antarctica, between Victoria Land and Marie Byrd Land and within the Ross Embayment, and is the southernmost sea on Earth. It derives its name from the British explorer James Clark Ross who visited this area in 1841. To the west of the sea lies Ross Island and Victoria Land, to the east Roosevelt Island and Edward VII Peninsula in Marie Byrd Land, while the southernmost part is covered by the Ross Ice Shelf, and is about 200 miles (320 km) from the South Pole. Its boundaries and area have been defined by the New Zealand National Institute of Water and Atmospheric Research as having an area of 637,000 square kilometres (246,000 sq mi).[1]

Ross Sea
Sea ice in the Ross Sea
Ross Sea
Seas of Antarctica, with the Ross Sea in the bottom-left
LocationAntarctica
Coordinates75°S 175°W / 75°S 175°W / -75; -175Coordinates: 75°S 175°W / 75°S 175°W / -75; -175
TypeSea
EtymologyJames Ross
Primary outflowsSouthern Ocean

The circulation of the Ross Sea is dominated by a wind-driven ocean gyre and the flow is strongly influenced by three submarine ridges that run from southwest to northeast.[citation needed] The circumpolar deep water current is a relatively warm, salty and nutrient-rich water mass that flows onto the continental shelf at certain locations.[2][3] The Ross Sea is covered with ice for most of the year.[citation needed]

The nutrient-laden water supports an abundance of plankton and this encourages a rich marine fauna. At least ten mammal species, six bird species and 95 fish species are found here, as well as many invertebrates, and the sea remains relatively unaffected by human activities. New Zealand has claimed that the sea comes under its jurisdiction as part of the Ross Dependency. Marine biologists consider the sea to have a high level of biological diversity and it is the site of much scientific research. It is also the focus of some environmentalist groups who have campaigned to have the area proclaimed as a world marine reserve. In 2016 an international agreement established the region as a marine park.[4]

Description

The Ross Sea was discovered by the Ross expedition in 1841. In the west of the Ross Sea is Ross Island with the Mt. Erebus volcano; in the east is Roosevelt Island. The southern part is covered by the Ross Ice Shelf.[5] Roald Amundsen started his South Pole expedition in 1911 from the Bay of Whales, which was located at the shelf. In the western parts of the Ross Sea, McMurdo Sound is a port that is usually free of ice during the summer. The southernmost part of the Ross Sea is Gould Coast, which is approximately 200 miles (320 km) from the geographic South Pole.

Geology

The continental shelf

 
Bathymetric map of the Ross Sea, Antarctica

The Ross Sea (and Ross Ice Shelf) overlies a deep continental shelf. Although the average depth of the world's continental shelves (at the shelf break joining the continental slope) is about 130 meters,[6][7] the Ross shelf average depth is about 500 meters.[8] It is shallower in the western Ross Sea (east longitudes) than the east (west longitudes).[8] This over-deepened condition is due to cycles of erosion and deposition of sediments from expanding and contracting ice sheets overriding the shelf during Oligocene and later time,[9] and is also found on other locations around Antarctica.[10] Erosion was more focused on the inner parts of the shelf while deposition of sediment dominated the outer shelf, making the inner shelf deeper than the outer.[9][11]

 
Ross Sea Antarctica sea floor geology showing major basins and drill sites

Seismic studies in the latter half of the twentieth century defined the major features of the geology of the Ross Sea.[12] The deepest or basement rocks, are faulted into four major north trending graben systems, which are basins for sedimentary fill. These basins include the Northern and Victoria Land Basin in the west, the Central Trough, and the Eastern Basin, which has approximately the same width as the other three. The Coulman High separates the Victoria Land Basin and Central Trough and the Central High separates the Central Trough and Eastern Basin. The majority of the faulting and accompanying graben formation along with crustal extension occurred during the rifting away of the Zealandia microcontinent from Antarctica in Gondwana during Cretaceous time.[13] Paleogene and Neogene -age and faulting and extension is restricted to the Victoria Land Basin and Northern Basin.[14][15]

Stratigraphy

Basement grabens are filled with rift sediments of uncertain character and age.[12] A widespread unconformity has cut into the basement and sedimentary fill of the large basins.[12][16] Above this major unconformity (named RSU-6[17]) are a series of glacial marine sedimentary units deposited during multiple advances and retreats of the Antarctic Ice Sheet across the sea floor of the Ross Sea during the Oligocene and later.[9]

Geologic drilling

Drill holes have recovered cores of rock from the western edges of the sea. The most ambitious recent efforts are the Cape Roberts Project (CRP) and the ANDRILL project.[18][19][20] Deep Sea Drilling Project (DSDP) Leg 28 completed several holes (270–273) farther from land in the central and western portions of the sea.[21] These resulted in defining a stratigraphy for most of the older glacial sequences, which comprise Oligocene and younger sediments. The Ross Sea-wide major unconformity RSU-6 has been proposed to mark a global climate event and the first appearance of the Antarctic Ice Sheet in the Oligocene.[22][23][24]

During 2018, Expedition 374 of the International Ocean Discovery Program (IODP), the latest successor to the DSDP, drilled additional holes (U1521–1525) in the central Ross Sea for determining Neogene and Quaternary ice sheet history.[25]

Basement

The nature of the basement rocks and the fill within the grabens are known in few locations. Basement rocks have been sampled at DSDP Leg 28 drill site 270 where metamorphic rocks of unknown age were recovered,[21] and in the eastern Ross Sea where a bottom dredge was collected.[26] In both these locations the metamorphic rocks are mylonites deformed in the Cretaceous suggesting extreme stretching of the Ross Embayment during that time.[27][26]

Marie Byrd Land – Rocks exposed in western Marie Byrd Land on the Edward VII Peninsula and within the Ford Ranges are candidates for basement in the eastern Ross Sea.[28] The oldest rocks are Permian sediments of the Swanson Formation, which is slightly metamorphosed. The Ford granodiorite of Devonian age intrudes these sediments. Cretaceous Byrd Coast granite in turn intrudes the older rocks. The Byrd Coast and older formations have been cut by basalt dikes. Scattered through the Ford Ranges and Fosdick Mountains are late Cenozoic volcanic rocks that are not found to the west on Edward VII Peninsula. Metamorphic rocks, migmatites, are found in the Fosdick Mountains and Alexandra Mountains.[29][30] These were metamorphosed and deformed in the Cretaceous.[31][32]

The Ross Supergroup system and Beacon Supergroup – Ross System rocks exposed in Victoria Land and in the Transantarctic Mountains on the western side of the Ross Sea[33][34] are possible basement rock below the sedimentary cover of the sea floor. The rocks are of upper Precambrian to lower Paleozoic in age, deformed in many places during the Ross Orogeny in the Cambrian.[34] These miogeosyncline metasedimentary rocks are partly composed of calcium carbonate, often including limestone. Groups within the Ross System include the Robertson Bay Group, Priestley Group, Skelton Group, Beardmore Group, Byrd Group, Queen Maud Group, and Koettlitz Group. The Robertson Bay Group compares closely with other Ross System members. The Priestley Group rocks are similar to those of the Robertson Bay Group and include dark slates, argillites, siltstones, fine sandstones and limestones. They can be found near the Priestley and Campbell glaciers. For thirty miles along the lower Skelton Glacier are the calcareous greywackes and argillites of the Skelton Group. The region between the lower Beardmore Glacier and the lower Shackelton Glacier sits the Beardmore Group. North of the Nimrod Glacier are four block faulted ranges that make up the Byrd Group. The contents of the Queen Maud Group area are mainly post-tectonic granite.

Beacon Sandstone of Devonian-Triassic age[35] and the Ferarr volcanic rocks of Jurassic age are separated from the Ross Supergroup by the Kukri Peneplain. Beacon rocks are reported to have been recovered in the drill cores of the Cape Roberts Project at the western edge of the Ross Sea.[36][37][38][39]

Oceanography

Circulation

 
Bloom in the Ross Sea, January 2011

The Ross Sea circulation, dominated by polynya processes, is in general very slow-moving. Circumpolar Deep Water (CDW) is a relatively warm, salty and nutrient-rich water mass that flows onto the continental shelf at certain locations in the Ross Sea. Through heat flux, this water mass moderates the ice cover. The near-surface water also provides a warm environment for some animals and nutrients to excite primary production. CDW transport onto the shelf is known to be persistent and periodic, and is thought to occur at specific locations influenced by bottom topography. The circulation of the Ross Sea is dominated by a wind-driven gyre. The flow is strongly influenced by three submarine ridges that run from southwest to northeast. Flow over the shelf below the surface layer consists of two anticyclonic gyres connected by a central cyclonic flow. The flow is considerable in spring and winter, due to influencing tides. The Ross Sea is covered with ice for much of the year and ice concentrations and in the south-central region little melting occurs. Ice concentrations in the Ross Sea are influenced by winds with ice remaining in the western region throughout the austral spring and generally melting in January due to local heating. This leads to extremely strong stratification and shallow mixed layers in the western Ross Sea.[40] Observation and data access in the region is coordinated by the Ross Sea Working Group of the Southern Ocean Observing System.

Ecological importance and conservation

The Ross Sea is one of the last stretches of seas on Earth that remains relatively unaffected by human activities.[41] Consequently, the Ross Sea has become a focus of numerous environmentalist groups who have campaigned to make the area a world marine reserve, citing the rare opportunity to protect the Ross Sea from a growing number of threats and destruction. The Ross Sea is regarded by marine biologists as having a very high biological diversity and as such has a long history of human exploration and scientific research, with some datasets going back over 150 years.[42][43]

Biodiversity

The Ross Sea is home to at least 10 mammal species, half a dozen species of birds, 95 species of fish, and over 1,000 invertebrate species. Some species of birds that nest in and near the Ross Sea include the Adélie penguin, emperor penguin, Antarctic petrel, snow petrel, and south polar skua. Marine mammals in the Ross Sea include the Antarctic minke whale, killer whale, Weddell seal, crabeater seal, and leopard seal. Antarctic toothfish, Antarctic silverfish, Antarctic krill, and crystal krill also swim in the cold Antarctic water of the Ross Sea.[44]

The flora and fauna are considered similar to other southern Antarctic marine regions. Particularly in Summer, the nutrient-rich sea water supports an abundant planktonic life in turn providing food for larger species, such as fish, seals, whales, and sea- and shore-birds.

Albatrosses rely on wind to travel and cannot get airborne in a calm. The westerlies do not extend as far south as the ice edge and therefore albatrosses do not travel often to the ice-pack. An albatross would be trapped on an ice floe for many days if it landed in the calm.[45]

The coastal parts of the sea contain a number of rookeries of Adélie and Emperor penguins, which have been observed at a number of places around the Ross Sea, both towards the coast and outwards in open sea.[5]

A 10-metre (32.8 feet) long colossal squid weighing 495 kilograms (1,091 lb) was captured in the Ross Sea on February 22, 2007.[46][47][48][49][50]

Toothfish fishery

In 2010, the Ross Sea Antarctic toothfish fishery was independently certified by the Marine Stewardship Council,[51] and has been rated as a 'Good Alternative' by the Monterey Bay Aquarium Seafood Watch program[citation needed]. However, a 2008 document submitted to the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) reported significant declines in toothfish populations of McMurdo Sound coinciding with the development of the industrial toothfishing industry since 1996, and other reports have noted a coincident decrease in the number of orcas. The report recommended a full moratorium on fishing over the Ross shelf.[52] In October 2012, Philippa Ross, James Ross' great, great, great granddaughter, voiced her opposition to fishing in the area.[53]

In the southern winter of 2017 New Zealand scientists discovered the breeding ground of the Antarctic toothfish in the northern Ross Sea seamounts for the first time[54] underscoring how little is known about the species.

Marine Protected Area

On 28 October 2016, at its annual meeting in Hobart, a Ross Sea marine park was declared by the CCAMLR, under an agreement signed by 24 countries and the European Union. It protected over 1.5 million square kilometers of sea and was the world's largest protected area at the time. However, a sunset provision of 35 years was part of negotiations, which means it does not meet the International Union for Conservation of Nature definition of a marine protected area, which requires it to be permanent.[4]

Beginning in 2005, the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) commissioned scientific analysis and planning for Marine Protected Areas (MPA) in the Antarctic. In 2010, the CCAMLR endorsed their Scientific Committee's proposal to develop Antarctic MPAs for conservation purposes. The US State Department submitted a proposal for a Ross Sea MPA at the September 2012 meeting of the CCAMLR.[55] At this stage, a sustained campaign by various international and national NGOs commenced to accelerate the process.[56]

In July 2013, the CCAMLR held a meeting in Bremerhaven in Germany, to decide whether to turn the Ross Sea into an MPA. The deal failed due to Russia voting against it, citing uncertainty about whether the commission had the authority to establish a marine protected area.[57]

In October 2014, the MPA proposal was again defeated at the CCAMLR by votes against from China and Russia.[58] At the October 2015 meeting a revised MPA proposal from the US and New Zealand was expanded with the assistance of China, who however shifted the MPA's priorities from conservation by allowing commercial fishing. The proposal was again blocked by Russia.[59]

See also

References

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External links

  Media related to Ross Sea at Wikimedia Commons

  • World Database on Protected Areas - Ross Sea Region Marine Protected Area 7 August 2020 at the Wayback Machine
  • Commission for the Conservation of Antarctic Marine Living Resources, New Zealand and United States Delegation, 2015. A proposal for the establishment of a Ross Sea Region Marine Protected Area 22 April 2020 at the Wayback Machine
  • J. Glausiusz, 2007, Raw Data: Beacon Bird of Climate Change. Discover Magazine.
  • Gunn, B., nd, Ross Sea, Antarctica, Including the Ross Sea Dependency, the Sub-Antarctic Islands and sea, up to New Zealand from the Pole.
  • K. Hansen, 2007, Paleoclimate: Penguin poop adds to climate picture. Geotimes.
  • International Polar Foundation, 2007, Interview with Dr. Steven Emslie: The Adélie Penguins' Diet Shift. SciencePoles website.
  • C. Michael Hogan. 2011. Ross Sea. Eds. P. Saundry & C. J. Cleveland. Encyclopedia of Earth. National Council for Science and the Environment. Washington DC
  • Locarnini, R. A., 1995, Quarterdeck, vol. 1, no. 3.(Department of Oceanography, Texas A&M University, College Station, Texas.)
  • "Nth Korean boats caught fishing in conservation area". Radio New Zealand. Retrieved 7 April 2011.
  • http://www.antarcticocean.org/. International campaign to establish Marine Protected Areas in the Southern Ocean.
  • [2]
  • The Last Ocean, documentary film on the Ross Sea and the international debate over its fate.

ross, deep, southern, ocean, antarctica, between, victoria, land, marie, byrd, land, within, ross, embayment, southernmost, earth, derives, name, from, british, explorer, james, clark, ross, visited, this, area, 1841, west, lies, ross, island, victoria, land, . The Ross Sea is a deep bay of the Southern Ocean in Antarctica between Victoria Land and Marie Byrd Land and within the Ross Embayment and is the southernmost sea on Earth It derives its name from the British explorer James Clark Ross who visited this area in 1841 To the west of the sea lies Ross Island and Victoria Land to the east Roosevelt Island and Edward VII Peninsula in Marie Byrd Land while the southernmost part is covered by the Ross Ice Shelf and is about 200 miles 320 km from the South Pole Its boundaries and area have been defined by the New Zealand National Institute of Water and Atmospheric Research as having an area of 637 000 square kilometres 246 000 sq mi 1 Ross SeaSea ice in the Ross SeaRoss SeaSeas of Antarctica with the Ross Sea in the bottom leftLocationAntarcticaCoordinates75 S 175 W 75 S 175 W 75 175 Coordinates 75 S 175 W 75 S 175 W 75 175TypeSeaEtymologyJames RossPrimary outflowsSouthern OceanThe circulation of the Ross Sea is dominated by a wind driven ocean gyre and the flow is strongly influenced by three submarine ridges that run from southwest to northeast citation needed The circumpolar deep water current is a relatively warm salty and nutrient rich water mass that flows onto the continental shelf at certain locations 2 3 The Ross Sea is covered with ice for most of the year citation needed The nutrient laden water supports an abundance of plankton and this encourages a rich marine fauna At least ten mammal species six bird species and 95 fish species are found here as well as many invertebrates and the sea remains relatively unaffected by human activities New Zealand has claimed that the sea comes under its jurisdiction as part of the Ross Dependency Marine biologists consider the sea to have a high level of biological diversity and it is the site of much scientific research It is also the focus of some environmentalist groups who have campaigned to have the area proclaimed as a world marine reserve In 2016 an international agreement established the region as a marine park 4 Contents 1 Description 2 Geology 2 1 The continental shelf 2 2 Stratigraphy 2 3 Geologic drilling 2 4 Basement 3 Oceanography 3 1 Circulation 4 Ecological importance and conservation 4 1 Biodiversity 4 2 Toothfish fishery 4 3 Marine Protected Area 5 See also 6 References 7 External linksDescription EditThe Ross Sea was discovered by the Ross expedition in 1841 In the west of the Ross Sea is Ross Island with the Mt Erebus volcano in the east is Roosevelt Island The southern part is covered by the Ross Ice Shelf 5 Roald Amundsen started his South Pole expedition in 1911 from the Bay of Whales which was located at the shelf In the western parts of the Ross Sea McMurdo Sound is a port that is usually free of ice during the summer The southernmost part of the Ross Sea is Gould Coast which is approximately 200 miles 320 km from the geographic South Pole Geology EditThe continental shelf Edit Bathymetric map of the Ross Sea AntarcticaThe Ross Sea and Ross Ice Shelf overlies a deep continental shelf Although the average depth of the world s continental shelves at the shelf break joining the continental slope is about 130 meters 6 7 the Ross shelf average depth is about 500 meters 8 It is shallower in the western Ross Sea east longitudes than the east west longitudes 8 This over deepened condition is due to cycles of erosion and deposition of sediments from expanding and contracting ice sheets overriding the shelf during Oligocene and later time 9 and is also found on other locations around Antarctica 10 Erosion was more focused on the inner parts of the shelf while deposition of sediment dominated the outer shelf making the inner shelf deeper than the outer 9 11 Ross Sea Antarctica sea floor geology showing major basins and drill sitesSeismic studies in the latter half of the twentieth century defined the major features of the geology of the Ross Sea 12 The deepest or basement rocks are faulted into four major north trending graben systems which are basins for sedimentary fill These basins include the Northern and Victoria Land Basin in the west the Central Trough and the Eastern Basin which has approximately the same width as the other three The Coulman High separates the Victoria Land Basin and Central Trough and the Central High separates the Central Trough and Eastern Basin The majority of the faulting and accompanying graben formation along with crustal extension occurred during the rifting away of the Zealandia microcontinent from Antarctica in Gondwana during Cretaceous time 13 Paleogene and Neogene age and faulting and extension is restricted to the Victoria Land Basin and Northern Basin 14 15 Stratigraphy Edit Basement grabens are filled with rift sediments of uncertain character and age 12 A widespread unconformity has cut into the basement and sedimentary fill of the large basins 12 16 Above this major unconformity named RSU 6 17 are a series of glacial marine sedimentary units deposited during multiple advances and retreats of the Antarctic Ice Sheet across the sea floor of the Ross Sea during the Oligocene and later 9 Geologic drilling Edit Drill holes have recovered cores of rock from the western edges of the sea The most ambitious recent efforts are the Cape Roberts Project CRP and the ANDRILL project 18 19 20 Deep Sea Drilling Project DSDP Leg 28 completed several holes 270 273 farther from land in the central and western portions of the sea 21 These resulted in defining a stratigraphy for most of the older glacial sequences which comprise Oligocene and younger sediments The Ross Sea wide major unconformity RSU 6 has been proposed to mark a global climate event and the first appearance of the Antarctic Ice Sheet in the Oligocene 22 23 24 During 2018 Expedition 374 of the International Ocean Discovery Program IODP the latest successor to the DSDP drilled additional holes U1521 1525 in the central Ross Sea for determining Neogene and Quaternary ice sheet history 25 Basement Edit The nature of the basement rocks and the fill within the grabens are known in few locations Basement rocks have been sampled at DSDP Leg 28 drill site 270 where metamorphic rocks of unknown age were recovered 21 and in the eastern Ross Sea where a bottom dredge was collected 26 In both these locations the metamorphic rocks are mylonites deformed in the Cretaceous suggesting extreme stretching of the Ross Embayment during that time 27 26 Marie Byrd Land Rocks exposed in western Marie Byrd Land on the Edward VII Peninsula and within the Ford Ranges are candidates for basement in the eastern Ross Sea 28 The oldest rocks are Permian sediments of the Swanson Formation which is slightly metamorphosed The Ford granodiorite of Devonian age intrudes these sediments Cretaceous Byrd Coast granite in turn intrudes the older rocks The Byrd Coast and older formations have been cut by basalt dikes Scattered through the Ford Ranges and Fosdick Mountains are late Cenozoic volcanic rocks that are not found to the west on Edward VII Peninsula Metamorphic rocks migmatites are found in the Fosdick Mountains and Alexandra Mountains 29 30 These were metamorphosed and deformed in the Cretaceous 31 32 The Ross Supergroup system and Beacon Supergroup Ross System rocks exposed in Victoria Land and in the Transantarctic Mountains on the western side of the Ross Sea 33 34 are possible basement rock below the sedimentary cover of the sea floor The rocks are of upper Precambrian to lower Paleozoic in age deformed in many places during the Ross Orogeny in the Cambrian 34 These miogeosyncline metasedimentary rocks are partly composed of calcium carbonate often including limestone Groups within the Ross System include the Robertson Bay Group Priestley Group Skelton Group Beardmore Group Byrd Group Queen Maud Group and Koettlitz Group The Robertson Bay Group compares closely with other Ross System members The Priestley Group rocks are similar to those of the Robertson Bay Group and include dark slates argillites siltstones fine sandstones and limestones They can be found near the Priestley and Campbell glaciers For thirty miles along the lower Skelton Glacier are the calcareous greywackes and argillites of the Skelton Group The region between the lower Beardmore Glacier and the lower Shackelton Glacier sits the Beardmore Group North of the Nimrod Glacier are four block faulted ranges that make up the Byrd Group The contents of the Queen Maud Group area are mainly post tectonic granite Beacon Sandstone of Devonian Triassic age 35 and the Ferarr volcanic rocks of Jurassic age are separated from the Ross Supergroup by the Kukri Peneplain Beacon rocks are reported to have been recovered in the drill cores of the Cape Roberts Project at the western edge of the Ross Sea 36 37 38 39 Oceanography EditCirculation Edit Bloom in the Ross Sea January 2011 The Ross Sea circulation dominated by polynya processes is in general very slow moving Circumpolar Deep Water CDW is a relatively warm salty and nutrient rich water mass that flows onto the continental shelf at certain locations in the Ross Sea Through heat flux this water mass moderates the ice cover The near surface water also provides a warm environment for some animals and nutrients to excite primary production CDW transport onto the shelf is known to be persistent and periodic and is thought to occur at specific locations influenced by bottom topography The circulation of the Ross Sea is dominated by a wind driven gyre The flow is strongly influenced by three submarine ridges that run from southwest to northeast Flow over the shelf below the surface layer consists of two anticyclonic gyres connected by a central cyclonic flow The flow is considerable in spring and winter due to influencing tides The Ross Sea is covered with ice for much of the year and ice concentrations and in the south central region little melting occurs Ice concentrations in the Ross Sea are influenced by winds with ice remaining in the western region throughout the austral spring and generally melting in January due to local heating This leads to extremely strong stratification and shallow mixed layers in the western Ross Sea 40 Observation and data access in the region is coordinated by the Ross Sea Working Group of the Southern Ocean Observing System Ecological importance and conservation EditThe Ross Sea is one of the last stretches of seas on Earth that remains relatively unaffected by human activities 41 Consequently the Ross Sea has become a focus of numerous environmentalist groups who have campaigned to make the area a world marine reserve citing the rare opportunity to protect the Ross Sea from a growing number of threats and destruction The Ross Sea is regarded by marine biologists as having a very high biological diversity and as such has a long history of human exploration and scientific research with some datasets going back over 150 years 42 43 Biodiversity Edit The Ross Sea is home to at least 10 mammal species half a dozen species of birds 95 species of fish and over 1 000 invertebrate species Some species of birds that nest in and near the Ross Sea include the Adelie penguin emperor penguin Antarctic petrel snow petrel and south polar skua Marine mammals in the Ross Sea include the Antarctic minke whale killer whale Weddell seal crabeater seal and leopard seal Antarctic toothfish Antarctic silverfish Antarctic krill and crystal krill also swim in the cold Antarctic water of the Ross Sea 44 The flora and fauna are considered similar to other southern Antarctic marine regions Particularly in Summer the nutrient rich sea water supports an abundant planktonic life in turn providing food for larger species such as fish seals whales and sea and shore birds Albatrosses rely on wind to travel and cannot get airborne in a calm The westerlies do not extend as far south as the ice edge and therefore albatrosses do not travel often to the ice pack An albatross would be trapped on an ice floe for many days if it landed in the calm 45 The coastal parts of the sea contain a number of rookeries of Adelie and Emperor penguins which have been observed at a number of places around the Ross Sea both towards the coast and outwards in open sea 5 A 10 metre 32 8 feet long colossal squid weighing 495 kilograms 1 091 lb was captured in the Ross Sea on February 22 2007 46 47 48 49 50 Toothfish fishery Edit In 2010 the Ross Sea Antarctic toothfish fishery was independently certified by the Marine Stewardship Council 51 and has been rated as a Good Alternative by the Monterey Bay Aquarium Seafood Watch program citation needed However a 2008 document submitted to the Commission for the Conservation of Antarctic Marine Living Resources CCAMLR reported significant declines in toothfish populations of McMurdo Sound coinciding with the development of the industrial toothfishing industry since 1996 and other reports have noted a coincident decrease in the number of orcas The report recommended a full moratorium on fishing over the Ross shelf 52 In October 2012 Philippa Ross James Ross great great great granddaughter voiced her opposition to fishing in the area 53 In the southern winter of 2017 New Zealand scientists discovered the breeding ground of the Antarctic toothfish in the northern Ross Sea seamounts for the first time 54 underscoring how little is known about the species Marine Protected Area Edit On 28 October 2016 at its annual meeting in Hobart a Ross Sea marine park was declared by the CCAMLR under an agreement signed by 24 countries and the European Union It protected over 1 5 million square kilometers of sea and was the world s largest protected area at the time However a sunset provision of 35 years was part of negotiations which means it does not meet the International Union for Conservation of Nature definition of a marine protected area which requires it to be permanent 4 Beginning in 2005 the Commission for the Conservation of Antarctic Marine Living Resources CCAMLR commissioned scientific analysis and planning for Marine Protected Areas MPA in the Antarctic In 2010 the CCAMLR endorsed their Scientific Committee s proposal to develop Antarctic MPAs for conservation purposes The US State Department submitted a proposal for a Ross Sea MPA at the September 2012 meeting of the CCAMLR 55 At this stage a sustained campaign by various international and national NGOs commenced to accelerate the process 56 In July 2013 the CCAMLR held a meeting in Bremerhaven in Germany to decide whether to turn the Ross Sea into an MPA The deal failed due to Russia voting against it citing uncertainty about whether the commission had the authority to establish a marine protected area 57 In October 2014 the MPA proposal was again defeated at the CCAMLR by votes against from China and Russia 58 At the October 2015 meeting a revised MPA proposal from the US and New Zealand was expanded with the assistance of China who however shifted the MPA s priorities from conservation by allowing commercial fishing The proposal was again blocked by Russia 59 See also Edit Oceans portalBeaufort Island Glomar Challenger Basin Hallett Ridge Iceberg B 15 Mawson Bank McMurdo Station Pennell Bank Ross Canyon Ross Dependency Ross Gyre Ross Ice ShelfReferences Edit About the Ross Sea NIWA 27 July 2012 Archived from the original on 24 February 2018 Retrieved 23 February 2018 Jacobs Stanley S Amos Anthony F Bruchhausen Peter M 1 December 1970 Ross sea oceanography and antarctic bottom water formation Deep Sea Research and Oceanographic Abstracts 17 6 935 962 Bibcode 1970DSRA 17 935J doi 10 1016 0011 7471 70 90046 X ISSN 0011 7471 Dinniman Michael S Klinck John M Smith Walker O 1 November 2003 Cross shelf exchange in a model of the Ross Sea circulation and biogeochemistry Deep Sea Research Part II Topical Studies in Oceanography The US JGOFS Synthesis and Modeling Project Phase II 50 22 3103 3120 Bibcode 2003DSRII 50 3103D doi 10 1016 j dsr2 2003 07 011 ISSN 0967 0645 a b Slezak Michael 26 October 2016 World s largest marine park created in Ross Sea in Antarctica in landmark deal The Guardian Archived from the original on 28 October 2016 Retrieved 28 October 2016 a b Ross Sea sea Pacific Ocean Britannica Online Encyclopedia Britannica com Archived from the original on 11 March 2012 Retrieved 13 August 2012 Gross M Grant 1977 Oceanography A view of the Earth 6 ed New Jersey Prentice Hall p 28 Shepard F P 1963 Submarine Geology 2 ed New York Harper amp Row p 264 a b Hayes D E Davey F J 1975 A Geophysical Study of the Ross Sea Antarctica PDF Initial Reports of the Deep Sea Drilling Project 28 Initial Reports of the Deep Sea Drilling Project Vol 28 doi 10 2973 dsdp proc 28 134 1975 Archived PDF from the original on 15 July 2017 a b c Bartek L R Vail P R Anderson J B Emmet P A Wu S 10 April 1991 Effect of Cenozoic ice sheet fluctuations in Antarctica on the stratigraphic signature of the Neogene Journal of Geophysical Research Solid Earth 96 B4 6753 6778 Bibcode 1991JGR 96 6753B doi 10 1029 90jb02528 ISSN 2156 2202 Barker P F Barrett P J Camerlenghi A Cooper A K Davey F J Domack E W Escutia C Kristoffersen Y and O Brien P E 1998 Ice sheet history from Antarctic continental margin sediments the ANTOSTRAT approach Terra Antarctica 5 4 737 760 a href Template Cite journal html title Template Cite journal cite journal a CS1 maint multiple names authors list link Ten Brink Uri S Schneider Christopher Johnson Aaron H 1995 Morphology and stratal geometry of the Antarctic continental shelf insights from models In Cooper Alan K Barker Peter F Brancolini Giuliano eds Geology and Seismic Stratigraphy of the Antarctic Margin American Geophysical Union pp 1 24 doi 10 1029 ar068p0001 hdl 1912 1602 ISBN 9781118669013 a b c The Antarctic continental margin geology and geophysics of the western Ross Sea Cooper Alan K Davey Frederick J Circum Pacific Council for Energy and Mineral Resources Houston Texas Circum Pacific Council for Energy and Mineral Resources 1987 ISBN 978 0933687059 OCLC 15366732 a href Template Cite book html title Template Cite book cite book a CS1 maint others link Lawver L A and L M Gahagan 1994 Constraints on timing of extension in the Ross Sea region Terra Antartica1 545 552 Davey F J Cande S C Stock J M 27 October 2006 Extension in the western Ross Sea region links between Adare Basin and Victoria Land Basin PDF Geophysical Research Letters 33 20 Bibcode 2006GeoRL 3320315D doi 10 1029 2006gl027383 ISSN 0094 8276 Granot Roi Dyment Jerome 9 August 2018 Late Cenozoic unification of East and West Antarctica Nature Communications 9 1 3189 Bibcode 2018NatCo 9 3189G doi 10 1038 s41467 018 05270 w ISSN 2041 1723 PMC 6085322 PMID 30093679 Geology and seismic stratigraphy of the Antarctic margin 2 Barker Peter F Cooper Alan K Washington D C American Geophysical Union 1997 ISBN 9781118668139 OCLC 772504633 a href Template Cite book html title Template Cite book cite book a CS1 maint others link Hinz K and M Block 1984 Results of geophysical investigations in the Weddell Sea and in the Ross Sea Antarctica In Proceedings of the Eleventh World Petroleum Congress London 1983 edited by World Petroleum Council 279 291 Chichester West Sussex John Wiley and Sons Ltd Barrett P J Treves S B 1981 Sedimentology and petrology of core from DVDP 15 western McMurdo Sound Dry Valley Drilling Project American Geophysical Union pp 281 314 doi 10 1029 ar033p0281 ISBN 978 0875901770 Davey F J Barrett P J Cita M B van der Meer J J M Tessensohn F Thomson M R A Webb P N Woolfe K J 2001 Drilling for Antarctic Cenozoic climate and tectonic history at Cape Roberts Southwestern Ross Sea Eos Transactions American Geophysical Union 82 48 585 Bibcode 2001EOSTr 82Q 585D doi 10 1029 01eo00339 ISSN 0096 3941 Paulsen Timothy S Pompilio Massimo Niessen Frank Panter Kurt Jarrard Richard D 2012 Introduction The ANDRILL McMurdo Ice Shelf MIS and Southern McMurdo Sound SMS Drilling Projects Geosphere 8 3 546 547 Bibcode 2012Geosp 8 546P doi 10 1130 ges00813 1 ISSN 1553 040X a b Hayes D E Frakes L A 1975 General Synthesis Deep Sea Drilling Project Leg 28 PDF Initial Reports of the Deep Sea Drilling Project 28 Initial Reports of the Deep Sea Drilling Project vol 28 U S Government Printing Office doi 10 2973 dsdp proc 28 136 1975 retrieved 28 August 2018 Anderson John B Bartek Louis R 1992 Cenozoic glacial history of the Ross Sea revealed by intermediate resolution seismic reflection data combined with drill site information The Antarctic Paleoenvironment A Perspective on Global Change Part One American Geophysical Union pp 231 263 doi 10 1029 ar056p0231 ISBN 978 0875908236 Brancolini Giuliano Cooper Alan K Coren Franco 16 March 2013 Seismic Facies and Glacial History in the Western Ross Sea Antarctica Geology and Seismic Stratigraphy of the Antarctic Margin American Geophysical Union pp 209 233 doi 10 1029 ar068p0209 ISBN 9781118669013 Decesari Robert C Christopher C Sorlien Bruce P Luyendyk Douglas S Wilson Louis Bartek John Diebold and Sarah E Hopkins 24 July 2007 USGS Open File Report 2007 1047 Short Research Paper 052 Regional Seismic Stratigraphic Correlations of the Ross Sea Implications for the Tectonic History of the West Antarctic Rift System 2007 1047sir052 doi 10 3133 of2007 1047 srp052 ISSN 0196 1497 a href Template Cite journal html title Template Cite journal cite journal a CS1 maint multiple names authors list link Robert M McKay Laura De Santis Denise K Kulhanek and the Expedition Scientists 374 24 May 2018 International Ocean Discovery Program Expedition 374 Preliminary Report International Ocean Discovery Program Preliminary Report International Ocean Discovery Program doi 10 14379 iodp pr 374 2018 a href Template Cite book html title Template Cite book cite book a CS1 maint multiple names authors list link a b Siddoway Christine Smith Baldwin Suzanne L Fitzgerald Paul G Fanning C Mark Luyendyk Bruce P 2004 Ross Sea mylonites and the timing of intracontinental extension within the West Antarctic rift system Geology 32 1 57 Bibcode 2004Geo 32 57S doi 10 1130 g20005 1 ISSN 0091 7613 Fitzgerald P G and S L Baldwin 1997 Detachment Fault Model for the Evolution of the Ross Embayment In The Antarctic Region Geological Evolution and Processes edited by C A Ricci 555 564 Siena Terra Antarctica Pub Luyendyk Bruce P Wilson Douglas S Siddoway Christine S 2003 Eastern margin of the Ross Sea Rift in western Marie Byrd Land Antarctica Crustal structure and tectonic development Geochemistry Geophysics Geosystems 4 10 1090 Bibcode 2003GGG 4 1090L doi 10 1029 2002gc000462 ISSN 1525 2027 S2CID 2310914 Luyendyk B P S M Richard C H Smith and D L Kimbrough 1992 Geological and geophysical investigations in the northern Ford Ranges Marie Byrd Land West Antarctica In Recent Progress in Antarctic Earth Science Proceedings of the 6th Symposium on Antarctic Earth Science Saitama Japan 1991 edited by Y Yoshida K Kaminuma and K Shiraishi 279 288 Tokyo Terra Pub Richard S M Smith C H Kimbrough D L Fitzgerald P G Luyendyk B P McWilliams M O 1994 Cooling history of the northern Ford Ranges Marie Byrd Land West Antarctica Tectonics 13 4 837 857 Bibcode 1994Tecto 13 837R doi 10 1029 93tc03322 ISSN 0278 7407 Siddoway C S Richard C M Fanning and B P Luyendyk 2004 Origin and emplacement mechanisms for a middle Cretaceous gneiss dome Fosdick Mountains West Antarctica Chapter 16 In Gneiss domes in orogeny edited by D L Whitney C T Teyssier and C Siddoway 267 294 Geological Society of America Special Paper 380 Korhonen F J Brown M Grove M Siddoway C S Baxter E F Inglis J D 17 October 2011 Separating metamorphic events in the Fosdick migmatite granite complex West Antarctica Journal of Metamorphic Geology 30 2 165 192 doi 10 1111 j 1525 1314 2011 00961 x ISSN 0263 4929 S2CID 1977832 Faure Gunter Mensing Teresa M 2011 The Transantarctic Mountains doi 10 1007 978 90 481 9390 5 ISBN 978 1 4020 8406 5 a b Stump Edmund 1995 The Ross orogen of the Transantarctic Mountains Cambridge England Cambridge University Press ISBN 978 0521433143 OCLC 30671271 Barrett P J 1981 History of the Ross Sea region during the deposition of the Beacon Supergroup 400 180 million years ago Journal of the Royal Society of New Zealand 11 4 447 458 doi 10 1080 03036758 1981 10423334 ISSN 0303 6758 Barrett P J C R A Fielding and S Wise eds 1998 Initial Report on CRP 1 Cape Roberts Project Antarctica Vol 5 Terra Antartica Siena Terra Antartica Barrett P J F J Davey W U Ehrmann M J Hambrey R Jarrard J J M van der Meer J Raine A P Roberts F Talarico and D K Watkins eds 2001 Studies from the Cape Roberts Project Ross Sea Antarctica Scientific Results of CRP 2 2A Parts I and II Vol 7 Terra Antartica Barrett P J M Massimo Sarti and S Wise eds 2000 Studies from the Cape Roberts Project Ross Sea Antarctica Initial report on CRP 3 Vol 7 Terra Antartica Siena Terra Antarctica Pub Barrett P J 2007 Cenozoic climate and sea level history from glacimarine strata off the Victoria Land coast Cape Roberts Project Antarctica In Glacial Sedimentary Processes and Products edited by M J Hambrey P Christoffersen N F Glasser and B Hubbart 259 287 Blackwell International Association of Sedimentologists Archived copy PDF Archived from the original PDF on 24 December 2013 Retrieved 23 December 2013 a href Template Cite web html title Template Cite web cite web a CS1 maint archived copy as title link Ballard Grant Jongsomjit Dennis Veloz Samuel D Ainley David G 1 November 2012 Coexistence of mesopredators in an intact polar ocean ecosystem The basis for defining a Ross Sea marine protected area Biological Conservation 156 72 82 doi 10 1016 j biocon 2011 11 017 1 dead link Archived 25 September 2010 at the Wayback Machine Antarctic and Southern Ocean Coalition The Ross Sea PDF The Ross Sea Antarctic and Southern Ocean Coalition ASOC Archived PDF from the original on 11 May 2012 Retrieved 26 April 2016 Ross Sea Species www lastocean org Archived from the original on 17 December 2013 Sub Antarctic and Polar bird life 23 April 2015 Archived from the original on 23 April 2015 a href Template Cite web html title Template Cite web cite web a CS1 maint bot original URL status unknown link World s largest squid landed in NZ Beehive Govt of NZ 22 February 2007 Archived from the original on 23 May 2010 Retrieved 11 June 2013 NZ fishermen land colossal squid BBC News 22 February 2007 Archived from the original on 17 September 2013 Retrieved 11 June 2013 Colossal squid s headache for science BBC News 15 March 2007 Archived from the original on 27 September 2013 Retrieved 11 June 2013 Size matters on squid row photos video The New Zealand Herald 1 May 2008 Retrieved 11 June 2013 Colossal squid s big eye revealed BBC News 30 April 2008 Archived from the original on 19 September 2013 Retrieved 11 June 2013 Marine Stewardship Council Ross Sea toothfish longline Marine Stewardship Council www msc org Archived from the original on 13 May 2016 Retrieved 26 April 2016 DeVries Arthur L Ainley David G Ballard Grant Decline of the Antarctic toothfish and its predators in McMurdo Sound and the southern Ross Sea and recommendations for restoration PDF CCAMLR Archived PDF from the original on 24 January 2016 Retrieved 26 April 2016 Ross descendant wants sea protected 3 News NZ 29 October 2012 Archived from the original on 22 February 2013 Peeping in on the Mile Deep Club Hakai Magazine Archived from the original on 17 August 2017 Retrieved 16 August 2017 Delegation of the United States A Proposal for the Ross Sea Region Marine Protected Area PDF Proposed Marine Protected Area in Antarctica s Ross Sea U S Department of State Retrieved 26 April 2016 Antarctic Oceans Alliance www antarcticocean org Archived from the original on 17 August 2017 Retrieved 16 August 2017 New Scientist No 2926 20 July Fight to preserve last pristine ecosystem fails Mathiesen Karl 31 October 2014 Russia accused of blocking creation of vast Antarctic marine reserves The Guardian Archived from the original on 13 May 2016 Retrieved 26 April 2016 The Pew Charitable Trusts Pew Nations Miss Historic Opportunity to Protect Antarctic Waters www prnewswire com Press release Archived from the original on 9 May 2016 Retrieved 26 April 2016 External links Edit Media related to Ross Sea at Wikimedia Commons World Database on Protected Areas Ross Sea Region Marine Protected Area Archived 7 August 2020 at the Wayback Machine Commission for the Conservation of Antarctic Marine Living Resources New Zealand and United States Delegation 2015 A proposal for the establishment of a Ross Sea Region Marine Protected Area Archived 22 April 2020 at the Wayback Machine J Glausiusz 2007 Raw Data Beacon Bird of Climate Change Discover Magazine Gunn B nd Geology The Ross Sea Dependency including Victoria Land Ross Sea Antarctica Including the Ross Sea Dependency the Sub Antarctic Islands and sea up to New Zealand from the Pole K Hansen 2007 Paleoclimate Penguin poop adds to climate picture Geotimes International Polar Foundation 2007 Interview with Dr Steven Emslie The Adelie Penguins Diet Shift SciencePoles website C Michael Hogan 2011 Ross Sea Eds P Saundry amp C J Cleveland Encyclopedia of Earth National Council for Science and the Environment Washington DC Locarnini R A 1995 the Ross Sea Quarterdeck vol 1 no 3 Department of Oceanography Texas A amp M University College Station Texas Nth Korean boats caught fishing in conservation area Radio New Zealand Retrieved 7 April 2011 http www antarcticocean org International campaign to establish Marine Protected Areas in the Southern Ocean 2 The Last Ocean documentary film on the Ross Sea and the international debate over its fate Portal Geography Retrieved from https en wikipedia org w index php title Ross Sea amp oldid 1145124055, wikipedia, wiki, book, books, library,

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