The Atlantic Salmon
Atlantic Salmon, Salmo salar. Once a highly valued commercial fish, the Maine Atlantic Salmon was declared an endangered species in 2009. Salmon are raised in aquaculture, but many problems, ranging from disease to ecological issues like impact on feed fish and fish pen effluent, are creating difficulties for farm raised salmon.
This image is from G. Brown Goode's The Fisheries and Fishery Industries of the United States, 1884-1887, Section I, Plate 186. The book can be found on line at: