THE MIGRATION BEHAVIOR, FINE-STRUCTURE, AND BIOLUMINESCENT ACTIVITY OF KRILL SOUND-SCATTERING LAYERS

被引:34
作者
GREENE, CH
WIDDER, EA
YOUNGBLUTH, MJ
TAMSE, A
JOHNSON, GE
机构
[1] HARBOR BRANCH OCEANOG INST INC,FT PIERCE,FL 34946
[2] BOSTON UNIV,MARINE PROGRAM,MARINE BIOL LAB,WOODS HOLE,MA 02543
[3] BIOSON INC,SEATTLE,WA 98103
关键词
D O I
10.4319/lo.1992.37.3.0650
中图分类号
Q [生物科学];
学科分类号
07 ; 0710 ; 09 ;
摘要
High-resolution SONAR and video techniques were used to quantify the migration behavior, fine structure, and bioluminescent activity of krill sound-scattering layers (SSLs) in the Gulf of Maine. These SSLs were found to exhibit highly synchronous vertical migration behavior, considerable fine-scale patchiness, and relatively high levels of stimulable bioluminescent activity. Our findings emphasize the highly variable and dynamic nature of krill distributions, a knowledge of which is essential to understanding their trophic role in marine ecosystems.
引用
收藏
页码:650 / 658
页数:9
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