Abstract
Abstract Artificial structures positioned off Panama City, Florida, during July 1969 proved effective in attracting commercial quantities of round scad, Spanish sardines, and scaled sardines. The structures' position in the water column and their design were important in attracting fish. Midwater structures which resembled a small pup tent were effective in attracting up to 25 metric tons of fish and consistently attracted frown 1/2 to 5 metric tons daily. SCUBA divers made visual estimates of the number of each species present at the structures. We discuss the behavior of the fish and present a possible explanation of why fish are associated with submerged structures.
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