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Selected Popular presS

(VIDEO) Antifreeze Proteins Keep Antarctic Fish Alive and Icy

The New York Times - ScienceTake and Video, Sept. 2014

...What is surprising is that the proteins latch on to ice crystals in the body of the fish and prevent them from growing also prevent the ice from melting. Paul A. Cziko and other researchers in the United States and New Zealand reported in Proceedings of the National Academy of Sciences on Monday...

The Tough as Hell Antarctic Fish with Antifreeze for Blood

Wired Magazine - Absurd Creature of the Week, Feb. 2015 PDF

...Studying these critters is evolutionary biologist Paul Cziko of the University of Oregon, who happily drills through Antarctic sea ice and jumps into the water. Cziko is tougher that you. So much tougher than you. "It's not that brave," he says, "in part because the water is amazingly clear." So, at least there's that... 

Antarctic Icefish Survive in Sub-Zero Waters Thanks to 'Anti-Melt' Proteins

Financial Times (UK), Oct. 2014 PDF

More surprisingly, the ice crystals can be superheated , remaining solid above the temperature at which  they would normally melt...

Antifreeze Proteins in Antarctic Fish Prevent Both Freezing and Melting

National Science Foundation, Sept. 2014. PDF

"This long-standing and continuously refined work on the antifreeze properties of Antarctic fish exemplifies one of the best and defining features of good science," said Charles Amsler, organisms and ecosystems program director in Polar Programs. 

(AUDIO) Frostschutzmittel im Fisch (Antifreeze in Fish)

Deutschlandfunk (German National Public Radio), Sept. 2014PDF MP3

"...Das ist in der Evolution häufig so: Jede gute Anpassung hat auch ihren Preis. Man löst ein Problme und schafft gleichzeitig ein neues, für das man eine Lösung braucht. Es ist immer ein Kompromiss." ("...Every good adaptation has its price, when you solve one problem you create another for which you need a solution. [Evolution] is always a compromise.")

Growing Cold: Scientists Study Adaptations of Antarctic Fish to Freezing Waters

The Antarctic Sun, July 2013PDF

The aquarium tanks in McMurdo Station’s  research laboratory, the Albert P. Crary Science and Engineering Center , contained a species of Antarctic fish during the 2012-13 austral summer that has been a rare sight in recent years — Dissostichus mawsoni...

Graduate Student Spotlight - Paul Cziko, Antarctic Research

U. of OR Biology Department annual newsletter, Oct. 2008. PDF

"...The pace of research here at Palmer Station (Antarctica) has been steady and strong over the past six weeks, and my hours in the lab drag on long after the 4 o'clock sunsets..."

Exploration of Frigid Water Yields One Cool Discovery

The News-Gazette, Jan. 2007. PDF

The day they added a new entry to the list of fish species on the planet, Paul Cziko and Kevin Hoefling were on a routine dive for the University of Illinois lab of animal biology professors Art DeVries and Chris Cheng...

McMurdo Fish May Prove to be New Species

The Antarctic Sun, Jan. 2006PDF

You can count the variety of visible animals at McMurdo Station on one hand, so the idea that a new species would wander up to station might initially seem absurd...

Protection Against Freezing

The New York Times, June 2006. PDF

...a new study of Antarctic fish reveals a different origin for their antifreeze proteins. None of them are synthesized in the liver. Most originate in the pancreas and protect the digestive fluids...

Cold, Hard Fact: Fish Antifreeze Produced in Pancreas 

Live Science, June 2006. PDF

...In a new study, published in the June 19 online edition of the Proceedings of the National Academy of Sciences, scientists have revealed the source of the fishes' key to survival...

Tough Skin Helps Baby Antarctic Fish

Chicago Sun Times, Feb. 2006. PDF

...At the McMurdo Sound research station by the Southern Ocean, a five-hour flight from New Zealand, undergrad Paul Cziko raised hundreds of hatchlings from three notothenioid species...

Thin Skin, Slow-Growing Gills Protect Larval Stage of Antarctic Fish

UIUC News, Feb. 2006. PDF

Very thin but hardy, unblemished skin and slow developing gills appear to be keys to survival for newly hatched Antarctic notothenioids, a group of fish whose adults thrive in icy waters because of antifreeze proteins (AFPs) in their blood...

Mystery Fish Discovered Near McMurdo Station

The Antarctic Sun, Dec. 2004. PDF

Paul Cziko and Kevin Hoefling were diving in about 15m of water, at the intake jetty at McMurdo Station last month when they spotted an unusual fish perched on a rock...