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Deep-SeaResearch1,Vol.41,No. 1, pp. 23-50,1994 Copyright 1994ElsevierScienceLtd
 

Summary: Pergamon
Deep-SeaResearch1,Vol.41,No. 1, pp. 23-50,1994
Copyrightę 1994ElsevierScienceLtd
PrintedinGreatBritain.Allrightsreserved
0967--0637/94$6.00+0.00
The influence of a Gulf Stream meander on the distribution of
zooplankton biomass in the Slope Water, the Gulf Stream, and
the Sargasso Sea, described using a shipboard acoustic Doppler
current profiler
CARIN J. ASHJIAN,* SHARON L. SMITH,*~ CHARLES N. FLAGG,* ARTHUR J.
MARIANO,~"WILLIAM J. BEHRENS* and PETER V. Z. LANE*~
(Received 21 December 1992;in revisedform 5 April 1993;accepted 5 April 1993)
Abstract--Patterns in zooplankton biomass distribution in a Gulf Stream meander were docu-
mented using a ship-mounted acoustic Doppler current profiler(ADCP) in fall 1988as part of the
BIOSYNOP program. The dominant signal in biomass was the regional variation between water
masses, with greatest biomass recorded in the Slope Water, intermediate biomass at the Slope
Water-GulfStream front, and lowest biomass in the Gulf Strearn/Sargasso Sea. Biomass was more
variable in the Slope Water than in the Sargasso Sea. Diel variation, a consequence of dielvertical
migration, was also observed. Comprehensive maps of the surveyed region documented meander
associatedenhancement ofzooplankton biomass. Elevated biomasswas documented in the region

  

Source: Ashjian, Carin - Biology Department, Woods Hole Oceanographic Institution

 

Collections: Environmental Sciences and Ecology; Geosciences