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.
The '''[[Hobbs Coast]]''' is the portion of the coast of [[Westarctica]] extending from [[Cape Burks]] to a point on the coast opposite eastern [[Dean Island]], at 74°42′S 127°05′W, or between the [[Ruppert Coast]] in the west and the [[Bakutis Coast]] in the east. It stretches from 136°50′W to 127°35′.


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.
The coast was discovered by the US [[Antarctica|Antarctic]] Service (1939–41) mapped by the United States Geological Survey from ground surveys and U.S. Navy air photos, 1959–65. The Hobbs Coast was named for Professor William H. Hobbs of the University of Michigan, a glaciologist specializing in polar geography and history.  


<p><small>Photographer: Ambiederman </small></p>
<p><small>Photographer: Michael Studinger</small></p>
[[:Category:Images|'''(More Featured Images)''']]
[[:Category:Images|'''(More Featured Images)''']]
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Revision as of 21:34, 23 May 2020

Hobbs Coast Mountains-NANA.jpg

The Hobbs Coast is the portion of the coast of Westarctica extending from Cape Burks to a point on the coast opposite eastern Dean Island, at 74°42′S 127°05′W, or between the Ruppert Coast in the west and the Bakutis Coast in the east. It stretches from 136°50′W to 127°35′.

The coast was discovered by the US Antarctic Service (1939–41) mapped by the United States Geological Survey from ground surveys and U.S. Navy air photos, 1959–65. The Hobbs Coast was named for Professor William H. Hobbs of the University of Michigan, a glaciologist specializing in polar geography and history.

Photographer: Michael Studinger

(More Featured Images)

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