Sharks are declining globally, yet the movements and habitats of most species are unknown.
Barbara Block
These animals are teaching us.. About basic aspects of our own physiology.
animals teaching
I like to check on the position of the sharks with my coffee every morning.
morning coffee sharks
Sharks are some of the least understood predators on the planet... We can go to the moon and plan a trip to Mars, but we're barely starting a mission in the Pacific Ocean.
mars plan moon starting ocean planet sharks mission
unknown sharks
Sharks are declining<br/> globally, yet the movements and habitats of most species are unknown
We<br/> combined radio uplinking SPOTs that give us accurate positions and<br/> data-logging PATs that store information for the duration of the<br/> programmed mission,.. By using two types of tags, we're<br/> able to accumulate a larger dataset on the sharks' habitat and<br/> preferences with a greater accuracy than we've been able to do before.
information radio give mission accuracy greater
Sharks have home ranges that are at the scale of ocean basins.
home ocean sharks
The shark heart slows down in the cold, just as our own heart would. But what sets it apart is where our heart would simply stop, the salmon shark keeps on ticking.
heart stop cold shark
Sometimes<br/> in winter the surface waters, which are less salty, were so cold that<br/> the sharks spent more time in warmer, saltier waters below,.. When I glimpsed the sharks' radio positions from these frigid<br/> seas, I often wondered what it would be like to overwinter in the wilds<br/> of an Alaska fjord chasing herring in constant darkness.
time darkness winter radio cold chasing sharks
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