. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 318 ROBERT E. KNOWLTON AND JAMES M. MOULTON RECORDING AND ANALYSIS OF BERMUDA SNAPPING SHRIMP NOISE Recordings were made at 56 stations surrounding the Bermuda, Challenger, and Argus (Plantagenant) Banks in the Western Atlantic Ocean. During the recordings the hydrophone just cleared the bottom. Sound waves picked up by the hydrophone were recorded on the tape recorder either at 7y2 or 33/4 inches per second. Snapping shrimp noise did not occur at all stations, but when it was present it remained fairly continuous throughout
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 318 ROBERT E. KNOWLTON AND JAMES M. MOULTON RECORDING AND ANALYSIS OF BERMUDA SNAPPING SHRIMP NOISE Recordings were made at 56 stations surrounding the Bermuda, Challenger, and Argus (Plantagenant) Banks in the Western Atlantic Ocean. During the recordings the hydrophone just cleared the bottom. Sound waves picked up by the hydrophone were recorded on the tape recorder either at 7y2 or 33/4 inches per second. Snapping shrimp noise did not occur at all stations, but when it was present it remained fairly continuous throughout the recording. Other noises heard in conjunction with snapping shrimp noise include Holocentrus ascensionis (squirrelfish) volleys, Epinephalns striatus (Nassau grouper) grunts, Panulirus argus (spiny lobster) stridulations, and Gonodactylus oerstedii (mantis shrimp) raptorial sounds. N t \ X35 V '•x ^ ^m \ \ Y97 -- ~~ — •— ^ * ~"~ — — -" **' •"3Ax **• / -" ~~ O2Q'' \ ,--——-'•* v / ^>ORTH ROCK-^7*" \ / ,'' .24 ' / *-23 ' ATLANTIC > / /^ x, *33 \ OCEAN \ ! 22 °4' / / THREE HILL ,' / SHOALS ,*• i ,' / \ 049 .) :/" «47 ST. sGEORGE'S ; / / ' / / / S IRELAND I. /? HARRINGTON ^OUND. SOMERSET I.] GREAT '1^^°.^ y /4 10 FATHOMS 100 FATHOMS • ABUNDANT SHRIMP NOISE (>2O SNAPS/SEC.) O LITTLE SHRIMP NOISE \ s ^ ,' («20 SNAPS/SEC.) _ ^ X NO SHRIMP NOISE 053 ^—' ^.--' /' 5 Ml. ( \ .'' FIGURE 14. Map of Bermuda showing location of the 56 stations and the amount of noise heard at each station. Station 37 (Ariadne Bank), located to northeast, stations 55 and 56 (Challenger and Argus Banks), located to southwest off the Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laborato
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
