The Nature Conservancy - Follow that Fin! Using Sonar to Monitor Eels
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2 years ago
Look closely at the top right-hand side of your screen and you'll see a blue, snake-like figure moving around. That's an American eel in the Neversink River! Conservancy scientists in New York are using a new high-tech monitoring tool called Dual Frequency Identification Sonar (DIDSON), to census the migration of American eels. The resulting video will help them obtain baseline and long-term population data for these elusive travelers and develop a comprehensive conservation plan. In past years, eel populations have experienced a severe decline and are now estimated to be at 1 percent of their historic numbers.Look closely at the top right-hand side of your screen and you'll see a blue, snake-like figure moving around. That's an American eel in th...all »Look closely at the top right-hand side of your screen and you'll see a blue, snake-like figure moving around. That's an American eel in the Neversink River! Conservancy scientists in New York are using a new high-tech monitoring tool called Dual Frequency Identification Sonar (DIDSON), to census the migration of American eels. The resulting video will help them obtain baseline and long-term population data for these elusive travelers and develop a comprehensive conservation plan. In past years, eel populations have experienced a severe decline and are now estimated to be at 1 percent of their historic numbers.«
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