Difference between revisions of "Template:POTD protected"

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The '''[[crocodile icefish]]''' or '''white-blooded fish''' (''Channichthyidae'') comprise a family of notothenioid fish found in the [[Southern Ocean]] around [[Antarctica]] and southern South America, where water temperatures remain relatively stable (generally ranging from -1.8 to +2.0 °C). Sixteen species of crocodile icefish are currently recognized. All icefish are believed to be piscivorous but can also feed on [[krill]]. Icefish are ambush predators; thus, they can survive long periods between feeding and often consume fish up to 50% of their own body length. Maximum body lengths of 25–50 cm have been recorded in these species.
'''[[Dorrel Rock]]''' is a rock outcrop 11 nautical miles (20 km) southwest of the summit of [[Mount Murphy]], protruding through the ice near the head of [[Pope Glacier]], on the [[Walgreen Coast]] in [[Westarctica]]. It was mapped by the United States Geological Survey from surveys and [[U.S. Navy]] air photos, 1959–66, and was named by the Advisory Committee on [[Antarctic]] Names after Leo E. Dorrel, U.S. Navy, a hospital corpsman with the [[Byrd Station]] winter party, 1966. On 2 November 2018, Westarctica's [[Honorary Consular Corps|Honorary Consul]] to Spain, [[Baron of Dorrel|Dr. Joachim Michael Adlfinger]], was granted the [[Peerage of Westarctica|Peerage title]] of Baron of Dorrel in recognition of his successful opening of Westarctica's consulate office in southern Spain.


To compensate for the loss of hemoglobin, they have larger blood vessels (including capillaries), greater blood volumes (four times that of other fish), bigger hearts, and greater cardiac outputs (fivefold greater) compared to other fish. Their hearts lack coronary arteries, and the ventricle muscles are very spongy, enabling them to absorb oxygen directly from the blood they pump.


<p><small>Photographer: Ambiederman </small></p>
 
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<p><small>Photo Credit: British Antarctic Survey</small></p>
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Latest revision as of 16:23, 29 April 2026

Dorrel Rock - Mt. Murphy.jpg

Dorrel Rock is a rock outcrop 11 nautical miles (20 km) southwest of the summit of Mount Murphy, protruding through the ice near the head of Pope Glacier, on the Walgreen Coast in Westarctica. It was mapped by the United States Geological Survey from surveys and U.S. Navy air photos, 1959–66, and was named by the Advisory Committee on Antarctic Names after Leo E. Dorrel, U.S. Navy, a hospital corpsman with the Byrd Station winter party, 1966. On 2 November 2018, Westarctica's Honorary Consul to Spain, Dr. Joachim Michael Adlfinger, was granted the Peerage title of Baron of Dorrel in recognition of his successful opening of Westarctica's consulate office in southern Spain.


Photo Credit: British Antarctic Survey

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