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![Fertilized salmon eggs are being placed on immersion incubator todetermine the best conditions for survival fish7953.jpg Fertilized salmon eggs are being placed on immersion incubator todetermine the best conditions for survival](/sites/default/files/styles/max_1300x1300/https/s3.amazonaws.com/s3-east-testmedia-noaa.woc.noaa.gov/dam/Photos/legacy/pl23_fish7953.jpg?itok=W2gVBDiB)
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Fertilized salmon eggs are being placed on immersion incubator todetermine the best conditions for survival. Through such research, bettermethods have been developed to cultivate the fish artificially through thecritical egg hatching and larval stages, and survival is improved. (Image credit: NOAA Central Library Historical Fisheries Collection; P. 456 of Our Changing Fisheries 1970 Centenary NMFS centenary volume)