CRUISE REPORT
Cruise Number: OM02-01
FOCI Number: 1OM02
Ship:
Oshoro
Maru
Area of Operations:
Itinerary:
Date depart / port: July 28, 2002 /
Date arrive / port: August 11, 2002 /
Participating organizations:
NOAA
- Alaska Fisheries Science Center (AFSC)
Chief Scientist:
William
Rugen M / AFSC
(206)
526-4339
bill.rugen@
noaa.gov
Personnel:
Jay
Clark M / AFSC
Jennifer
Lanksbury F / NMFS
Destry
Wion M / NMFS
Cruise Objectives:
The objective of this cruise was to continue the
long-term acquisition of biological and physical data relating to the summer
abundance of walleye pollock (Theragra chalcogramma) larvae and juveniles in
the eastern Bering sea shelf region.
This is a continuing cooperative research effort between FOCI and the
scientists at Hokkaido University in Hakodate, Japan.
Summary of Operations:
Operation Tows
20cm
bongo (20Bon) 7
60cm
bongo (60Bon) 7
CalCOFI
vertical egg tow net (CalVET) 6
Methot
net on Japanese trawl frame (MBT) 28
Samples Collected |
Tows |
Number |
Microzooplankton samples preserved in formalin (MZ) |
6 |
6 |
Pollock removed and frozen by Dr. T. Nishiyama. (NishFish) |
9 |
222 |
Quantitative tow preserved in formalin (QTowF) |
40 |
47 |
Rough count of pollock juveniles (RCountJ) |
26 |
721 |
Summary of Cruise:
Narrative:
We were able to complete all of our station
objectives during the course of this cruise.
Pollock abundance appeared to be lower than in many past years, though
pollock were collected at almost all stations.
The gear used, a Methot inner and outer net attached to a Japanese rigid
frame, worked as expected with few exceptions.
Much other physical and biological data were collected by the Japanese
scientists on board using CTDs, water bottles, bongos, Norpac, Secchi discs and
other gears.
Days
Lost to Weather:
None
Days
Lost to Equipment Failure:
None
Recommendations:
None
Acknowledgments:
The scientific party would like to acknowledge
the hard work and support of the officers and crew of the Oshoro Maru. The captain, crew and scientists were once
again very accommodating and helpful.
Without their continuous support fulfilling our objectives would have
been quite difficult. We were once again
very pleased with our results and thank those aboard the Oshoro Maru and look forward to sailing on her again.
Attachments:
Figure 2: Pollock Abundance Map