CERATOSCOPELUS MADERENSIS - PECULIAR SOUND-SCATTERING LAYER IDENTIFIED WITH THIS MYCTOPHID FISH

被引：49

作者：

BACKUS, RH

CRADDOCK, JE

HAEDRICH, RL

SHORES, DL

TEAL, JM

WING, AS

MEAD, GW

CLARKE, WD

机构：

[1] Woods Hole Oceanographic Institution, Woods Hole, MA

[2] Museum of Comparative Zoology, Harvard University, Cambridge, MA

[3] Ocean Research Laboratory, Westinghouse Electric Corporation, San Diego, CA

来源：

SCIENCE | 1968年 / 160卷 / 3831期

关键词：

D O I：

10.1126/science.160.3831.991

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

A sound-scattering layer, composed of discrete hyperbolic echo-sequences and apparently restricted to the Slope Water region of the western North Atlantic, has been identified from the Deep Submergence Research Vehicle Alvin with schools of the myctophid fish Ceratoscopelus maderensis. By diving into the layer and using Alvin's echo-ranging sonar, we approached and visually identified the sound scatterers. The number of echo sequences observed with the surface echo-sounder (1/23.76 × 105 cubic meters of water) checked roughly with the number of sonar targets observed from the submarine (1/7.45 × 105 cubic meters). The fish schools appeared to be 5 to 10 meters thick, 10 to 100 meters in diameter, and on centers 100 to 200 meters apart. Density within schools was estimated at 10 to 15 fish per cubic meter.

引用

页码：991 / &