Paddle pumps to aerate eel pond under heated greenhouse. Temperature
is kept above 86 degrees Fahrenheit or 30 degrees Celsius.
Image ID: fish5094, NOAA's Fisheries Collection
Location: Japan, Daiwa Eel Farm, Lake Hamana, Shizuoka Pref.
Photo Date: 2002
Photographer: Dr. Charles Helsley, University of Hawaii
Category: Fisheries/Aquaculture/Systems/UJNR 31st Meeting/
• High Resolution Photo Available