Effects of Underwater Explosions on Fish Without Swimbladders
NAVAL SURFACE WARFARE CENTER SILVER SPRING MD
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Techniques were developed to study the effects of underwater explosions on fish without swimbladders. Detailed injury data were obtained from hogchokers Trinectes maculatus at distances from 30 to 80 inches from a 10- pound pentolite charge. The range for 50 percent probability of immediate kill was 30 inches, which is about a factor of 100 less than for swimbladder fish of comparable size. The data demonstrate that these fish without swimbladders have an unusually high resistance to explosion effects. The degree to which these results carry over to other species without swimbladders is not known. Underwater explosions.