Preliminary report from the sea-going workshop in Norway June 1993 on intercomparison and evaluation of methods for sampling and determination of zooplankton distribution and biomass
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http://hdl.handle.net/11250/105196Utgivelsesdato
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This report is not to be cited without prior reference to the authorsSammendrag
A sea-going workshop was arranged from 2 to 13 June 1993 in Storfjorden at
Møre on the west coast of Norway. The workshop was a two-ship operation
involving the Norwegian R/V "Johan Hjort" and the German R/V "A.V.
Humboldt". The principal objective was to intercom pare, characterize and
evaluate the performance of gear and techniques for quantitative description of
zooplankton distribution, biomass and production. During the last two days of
the cruise, a seminar series of lectures was presented which highlighted various
aspects of the sampling and samplers. A total number of 38 scientists and
technicians from Canada, France, Germany, Iceland, Norway, Spain, United
Kingdom and USA took part in the workshop and/ or the seminar. A wide
range of sampling gears and instruments were deployed. These included
BIONESS, MOCNESS (1 and 10 m2), LHPR, CPR, Gulf Ill, Optical Plankton
Counter, and various other plankton nets and trawls. Sample treatment usually
involved splitting the samples in two halves for determination of sizefractioned
dry weight biomass and species enumeration, respectively. The dry
weight biomass samples were worked up during the workshop and will form
the principal material for the gear intercomparison. Acoustical registrations
were made with Simrad EK500 eccho sounders operated at 4 frequencies (18, 38,
120, and 200 kHz). This report gives a brief description of the work carried out
during the workshop and a few preliminary results. A full report describing the
results from the workshop will be prepared and reviewed by the Study Group of
Zooplankton Production.