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Latest Nathan Putman Stories

2014-06-04 15:19:56

Oregon State University Exposure to iron pipes and steel rebar, such as the materials found in most hatcheries, affects the navigation ability of young steelhead trout by altering the important magnetic "map sense" they need for migration, according to new research from Oregon State University. The exposure to iron and steel distorts the magnetic field around the fish, affecting their ability to navigate, said Nathan Putman, who led the study while working as a postdoctoral researcher...

Pacific Salmon Rely On The Earth's Magnetic Field To Navigate
2014-02-07 10:24:41

[ Watch the Video: Salmon Can Sense Earth's Magnetic Field ] Brett Smith for redOrbit.com - Your Universe Online Salmon have an uncanny ability to return to the river of their birth to spawn as adults and a new study in the journal Current Biology has found that these fish are born with an innate ability to sense Earth's magnetic field – essentially a biological compass to guide them on their journey back. To reach their conclusion, the study team executed a series of trials at the...

Salmon Use Magnetic Maps To Navigate Home
2013-02-08 10:14:44

April Flowers for redOrbit.com - Your Universe Online A new analysis of over 56 years of data has revealed that sockeye salmon use a magnetic map to return to their spawning grounds after years at sea. The findings of this study were published online in the journal Current Biology. "To find their way back home across thousands of kilometers of ocean, salmon imprint on the magnetic field that exists where they first enter the sea as juveniles," said Nathan Putman of Oregon State...

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2011-02-25 09:18:02

From the very first moments of life, hatchling loggerhead sea turtles have an arduous task. They must embark on a transoceanic migration, swimming from the Florida coast eastward to the North Atlantic and then gradually migrating over the course of several years before returning again to North American shores. Now, researchers reporting online on February 24 in Current Biology, a Cell Press publication, have figured out how the young turtles find their way. "One of the great mysteries of...


Word of the Day
grass-comber
  • A landsman who is making his first voyage at sea; a novice who enters naval service from rural life.
According to the OED, a grass-comber is also 'a sailor's term for one who has been a farm-labourer.'