SIPHONOPHORES AND DEEP SCATTERING LAYER
SIPHONOPHORES AND DEEP SCATTERING LAYER
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DOI：
10.1126/science.140.3568.826
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发表时间：
1963-01-01
期刊：
影响因子：
56.9
通讯作者：
BARHAM, EG
中科院分区：
文献类型：
--
作者：
BARHAM, EG
圣地亚哥海槽的深潜器潜水揭示了管水母与精密深度记录回声测深仪记录的深层散射层之间的密切空间关系。对上升散射层的封闭网中捕获的 Nanomia bijuga 浮选结构内的气泡进行的测量表明，这些气泡非常接近 12 kcy/sec 声音的共振尺寸。由于此类生物能够进行长时间的垂直迁移，并且在地理上分布广泛，因此它们很可能是世界海洋中分层散布带的主要原因。
Bathyscaphe dives in the San Diego Trough have revealed a close spatial relation between siphonophores and the deep scattering layer as recorded by precision depth recording echo-sounders. Measurements of gas bubbles within the flotation structures of Nanomia bijuga captured in a closing net in an ascended scattering layer indicate that these are very close to the resonant size for 12-kcy/sec sound. Because such organisms are capable of making prolonged vertical migrations, and are widespread geographically, they are very probably the major cause of stratified zones of scattering throughout the oceans of the world.