pl23_fish7948.jpg
Image
Download ( 6.81 MB )Permalink
https://www.noaa.gov/media/digital-library-photo/pl23fish7948jpgDescription
Density and color enhancement of photograph of fish school and contrail byPhilco Ford for BCF. To enhance readability of original photograph, whichconceals many details, each subtle tone is assigned a color. This and otheradvanced techniques makes it possible to identify fish schools, changes in plant life in water, water depths, and polluted areas. See images fish7971 and 7972.
Credit
NOAA Central Library Historical Fisheries Collection; P. 442 of Our Changing Fisheries 1970 Centenary NMFS centenary volume
Display Date
1969 circa
Collection
Historic Fisheries