Accession Number : ADA119547

Title :   Particle Sampling and Analysis in Dabob Bay, Washington.

Descriptive Note : Technical rept.,

Corporate Author : NAVAL UNDERWATER SYSTEMS CENTER NEW LONDON CT NEW LONDON LAB

Personal Author(s) : Brown, Charles L

PDF Url : ADA119547

Report Date : 13 Sep 1982

Pagination or Media Count : 23

Abstract : The concentration of particles in the water column was correlated with turbulence in the boundary layer of experimental underwater vehicle B-1 in Dabob Bay, Washington, in 1979. With the advent of field testing of experimental vehicle LDV-2 in the same location, a more comprehensive particle sampling program was implemented in 1980. From samplings taken from August through December 1980, the average total number of particles in the size range 50 - 2000 micrometers was 14,063/cu m. During the same time period, fecal pellets in the size range 100 - 1000 micrometers averaged 7399/cu m, or 53 percent of the total particles observed. For all sampling dates, particle sizes of 3.6 to about 50 micrometers, as determined by a Coulter Counter, were the most abundant, averaging 3181 x 10 to the 6th power/cu m, or five orders of magnitude greater than the larger particles taken by the net. For the 74 micrometers mesh net samples, 72 percent of the particles fell within the size range of 100 - 500 micrometers. Thirteen percent of the particles were in the size range of 50 - 100 micrometers. Fourteen percent of the particles were in the size range of 500 - 1000 micrometers, whereas less than 1 percent were in the range above 1000 micrometers. (Author)

Descriptors :   *PARTICLES, WASHINGTON(STATE), PUGET SOUND, BAYS, PLANKTON, FECES, SAMPLING, PARTICLE SIZE, PARTICLE SPECTRA

Subject Categories : Biological Oceanography

Distribution Statement : APPROVED FOR PUBLIC RELEASE