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Story Six
Breathing Deeply
A dive team provides insight into oxygen deprivation
By MaryAlice Yakutchik
Silver Glen -- Deep underwater cave explorers such as Jill Heinerth and Tom Morris know what it's like to feel deprived of oxygen: your lungs are full, but don't feel nourished; you feel like a fish out of water. To feel like a fish in the St. Johns on any given day is, sadly enough, to feel oxygen-deprived. Water tests during this journey reveal that recent low dissolved-oxygen events in the river are in the lethal range.
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