Accession Number:

ADA009846

Title:

Thecosomata (Gastropoda, Opisthobranchia) of the Caribbean Sea and Adjacent Areas.

Descriptive Note:

Master's thesis,

Corporate Author:

ROSENSTIEL SCHOOL OF MARINE AND ATMOSPHERIC SCIENCE MIAMI FLA

Personal Author(s):

Report Date:

1975-05-01

Pagination or Media Count:

357.0

Abstract:

A total of 27 species and 13 formae from 13 genera were identified and enumerated. One genus and 8 species are new records for the Caribbean including one rare species, Desmopterus gardineri. Temperature-salinity-plankton diagrams were constructed for each species and used to determine water mass preferences and environmental ranges. Horizontal contours were used to delineate areas of high and low thecosome production. The highest productions were located in the south central sections of the Caribbean and were associated with areas of upwelling. The poorest areas for production occurred in waters with low nutrient levels in the central Caribbean running from the southeast to the northwest. Most of the species exhibited diurnal vertical migrations, with the adults showing the strongest migrations. The juveniles of most species displayed weaker migratory patterns than their adult counterparts and generally occupied higher or the same levels in the water column.

Subject Categories:

  • Biology
  • Biological Oceanography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE