Accession Number:

AD0723867

Title:

Biological Results of Sampling in the Deep Scattering Layers of the Western Mediterranean in Autumn.

Descriptive Note:

Technical rept.,

Corporate Author:

SACLANT ASW RESEARCH CENTRE LA SPEZIA (ITALY)

Report Date:

1971-04-01

Pagination or Media Count:

66.0

Abstract:

Investigations in the Mediterranean sea have revealed some consistent features of the deep scattering layers DSL. A 12 kHz Edo Echo Sounder and a Precision Fathometer Recorder PFR were used for elucidating changes in the density of the scattering and the distribution of the layers in time and space. Samples of the scatterers have been collected by towing a midwater closing-net sampler horizontally at speeds between 2.5 and 3.5 knots. During these observations Siphonophores, Euphausiids, and fish Myctophids and Sternoptychids were found to be the most predominant species encountered. Author

Subject Categories:

  • Undersea and Antisubmarine Warfare
  • Acoustics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE