Tetrad Islands

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Tetrad Islands
Waters Orléans Street
archipelago Palmer Archipelago
Geographical location 63 ° 55 ′  S , 60 ° 44 ′  W Coordinates: 63 ° 55 ′  S , 60 ° 44 ′  W
Tetrad Islands (Antarctic Peninsula)
Tetrad Islands
Number of islands 4th
Residents uninhabited

The Tetrad Islands are an archipelago consisting of four small islands in the Palmer Archipelago off the west coast of the Antarctic Peninsula . The islands are located southeast of Trinity Island's Borge Point .

exploration

The islands were first mapped by the Norwegian whaler Hans Borge (1873-1946), captain of the whaling ship Polynesia . Borge was whaling in this area from 1913-14 and made maps of the area. After the exploration of the area by the 6th Chilean Antarctic Expedition (1951–1952), one of the islands was named Islote Gastón , presumably named after Gastón Kulczewski Silva, who was in charge of the Arturo Prat station at the time . The northernmost and largest island was named Islote Leucotón after the Leucotón , a patrol ship of the expedition. The two smaller islands are the Islote Beltrán south of the Islote Leucotón and the so far unofficially named Islote Entrada at the southern end of the group. The islands were recorded on Argentine maps from 1952.

After the Falkland Islands and Dependencies Aerial Survey Expedition anfertigte 1,956 aerial photos of the islands, the archipelago was given in 1960 by the UK Antarctic Place-Names Committee (UK-APC) the name Tetrad Islands (from English tetrad - nibble Tetrad) as they made consists of four islands. The Argentine name is Islotes Tetraedro.

tourism

The islands were u. a. In the season 2004–2005 headed for the cruise ship M / S Andrea of Elegant Cruises and Tours.

It is possible to enter the islands, but sometimes stony slopes have to be climbed.

fauna

Large numbers of seals can be found on the islands in late summer . According to a handbook from the Foreign and Commonwealth Office region , around 180 pairs of chinstrap penguins ( Pygoscelis antarctica ) and several hundred pairs of the Antarctic cormorant ( Phalacrocorax atriceps bransfieldensis ) breed here .

Individual evidence

  1. ↑ a b Tetrad Islands ( English ) In: Geographic Names Information System . United States Geological Survey . Retrieved May 18, 2013.
  2. ↑ a b c Name details: Tetrad Islands (Gazetteer of the British Antarctic Territory). Australian Antarctic Data Center , accessed May 18, 2013 .
  3. ^ Robert K. Headland: Chronological List of Antarctic Expeditions and Related Historical Events . Cambridge University Press, 1989, ISBN 0-521-30903-4 , pp. 257 (English, limited preview in Google Book search).
  4. ↑ a b Name details: Tetrad Islands (United States Gazetteer). Australian Antarctic Data Center , accessed May 18, 2013 .
  5. ↑ United States Antarctic Activities - Modifications of Activities planned for 2004-2005 . National Science Foundation , Arlington 2005, pp. 92 (English, PDF; 600 KB [accessed on May 18, 2013]).
  6. ^ A b Ron Naveen, Heather Lynch: Antarctic Peninsula Compendium . 3. Edition. Oceanites, Inc., Chevy Chase 2011 ( PDF; 37.5 MB [accessed May 18, 2013]).
  7. ^ Colin Harris: Wildlife Awareness Manual: Antarctic Peninsula, South Shetland Islands, South Orkney Islands . 1st edition. Foreign and Commonwealth Office , 2006, ISBN 978-0-9552205-0-0 , pp. 80 (English, PDF; 12 MB [accessed on May 18, 2013]).