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Obsolete - AFSC/RACE/EcoFOCI: 2011 Gulf of Alaska fall juvenile fish Cruise DY11-06/7DY11
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The cruise began when the ship departed Dutch Harbor on October 1, 2011 at 1500 ADT.
Sampling commenced at collection site 1E, which corresponds to Station 1. Station
number reflects the order of site occupation (see Cruise Report Table 1, Figures 1
and 2). All but one of the Semidi grid sites were successfully occupied by 10 October.
Site 2B was not occupied successfully because the midwater trawl was torn by bottom
contact and we chose to forgo sampling there in favor of running to the next station
while the deck crew removed the tangled trawl from the net reel. Unfortunately, removing
the net took about 12 hrs because the net became tangled on the reel. Only 17 of the
32 Kodiak grid sites were successfully occupied (Table 1). This was largely due to
an overly ambitious cruise plan. Overall, samples were successfully collected to address
cruise objectives (no. sites, gear type): time series (n=26 sites, midwater Stauffer
trawl), resource selection models (RSM, n=35 sites, 3-m plumb staff beam trawl), potential
prey (n=9 sites, 60-cm bongo, epibenthic sled, Van Veen grab infauna), and juvenile
fish production (relevant data were collected at all sites). At nine sites, including
Station 39, the sea floor was too rough to sample on bottom so only a midwater sample
was collected. This additional sampling was to supplement collections made for the
GOA-Integrated Ecosystem Research Program (RHeintz, see above Samples Collected) and
for a study of otolith element composition. Sampling concluded after three unsuccessful
attempts to obtain a sediment composition sample at Site 27G (Station 56) at approximately
03:25 on 14 October 2011.
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