944f210d___Changes_in_Fish_Species
[Decade] 1910 [Market Stimulation] NA [Fishing Technology] -steam tugboats were replaced by cheaper diesel powered tugs -introduction of steel hulled fishing boats [Changes in Fish Species] 
-Lake Herring catch peaked in 1918 -Lake Whitefish catch experiences serious decline -Sauger catch peaked in 1915
Changes in Fish Species