Deep Scattering Layer Migration and Composition: Observations from a Diving Saucer

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Science  18 Mar 1966:
Vol. 151, Issue 3716, pp. 1399-1403
DOI: 10.1126/science.151.3716.1399


The distribution of a myctophid fish and physonect siphonophores observed during dives in the Soucoupe off Baja California closely correlates with scattering layers recorded simultaneously with a 12-kcy/sec echo sounder. These organisms were observed while they were migrating vertically, and at their night and daytime levels. They are capable of rapid, extensive changes in depth.