Accession Number:

ADA055500

Title:

Biological Characterization of Deep Flow Reversals in the Straits of Florida.

Descriptive Note:

Doctoral thesis,

Corporate Author:

ROSENSTIEL SCHOOL OF MARINE AND ATMOSPHERIC SCIENCE MIAMI FLA

Personal Author(s):

Report Date:

1978-05-01

Pagination or Media Count:

250.0

Abstract:

The occurrence of chaetognath, euthecosome, and euphausiid species in relation to deep flow reversals in the Florida Straits off Miami was examined during four, 3- to 10-day periods in 1972-1974. Simultaneous zooplankton collections and current profiles were made at 6-hr intervals while anchored in 650-800 m at a station 15 miles east of Miami. The sampling depth was 600-750 m and the duration of fishing 1-1 12 hrs. Time-depth contour plots of the u- and v-components of velocity and temperature show variations in the deep current similar to those found by previous investigators. Deep flow reversals of varying intensity occurred at several-day intervals. Twenty species of Chaetognatha, 14 species, 1 subspecies, and 9 formae of Euthecosomata, and 15 species of Euphausiacea were identified in the deep samples. The observed distribution patterns of these species were evaluated in terms of the known horizontal and vertical ranges of each species and compared with the simultaneously collected physical data.

Subject Categories:

  • Biological Oceanography
  • Physical and Dynamic Oceanography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE