10-19 April 1999
Operating Area:
Eastern Bering Sea shelfParticipating Organizations:
NOAA - Alaska Fisheries Science Center (AFSC)Personnel:
NOAA - Pacific Marine Environmental Laboratory (PMEL)
Chief Scientist: Deborah M. BloodAFSCParticipating Scientists:
Christine Baier AFSCCruise Objectives:
Lisa Britt AFSC
Rachael Cartwright AFSC
Jay Clark AFSC
William Rugen AFSC
The purpose of this cruise was to conduct a survey to locate the area(s) of pollock spawning and high pollock egg concentrations over the southeast shelf of the Bering Sea. Within areas of high egg concentrations, depth-stratified samples were taken to investigate vertical distribution and specific gravity of pollock eggs. In the Bering Sea, pollock eggs occur throughout the water column, but mostly in the upper 40 m. This is different from the pollock eggs in Shelikof Strait, Alaska, that are generally found at about 200 m. Samples collected during the cruise will be compared to similar previous research on Shelikof Strait pollock eggs in order to find out why the eggs are found at such different depths. In addition, a drifter was deployed in a area of high pollock egg concentration to track the path over which many of the eggs would be carried.Summary of Operations (see Table 1)In areas where spawning pollock were found, adults were collected by trawling, and live eggs were stripped, fertilized, and transported back to Seattle, WA and Newport, OR. Larvae reared from these eggs will be used for research on the swimming activity, feeding and respiration, and behavior of pollock larvae, and for research on the genetics of the pollock population on the eastern Bering Sea shelf.
Biological and physical oceanographic samples were collected at 4 stations at and around Mooring 2 and Mooring F99-BS-2A in order to continue long-term monitoring.
Onboard egg production experiments for the copepod Calanus marshallae were conducted to determine reproductive rates over the shelf at different temperatures. Calanus marshallae are an important prey item for larval and juvenile pollock.
This cruise was conducted for FOCI (Fisheries Oceanography Coordinated Investigations), a research effort by NOAA scientists to understand the physical and biological processes that determine recruitment variability of commercially valuable finfish and shellfish stocks in Alaskan waters. At present, FOCI consists of a Shelikof Strait walleye pollock project (western Gulf of Alaska), and a NOAA Coastal Ocean Program (COP) project: Southeast Bering Sea Carrying Capacity. The COP project is a collaborative effort by NOAA and academic scientists to understand the affects of abiotic and biotic variability on the SE Bering Sea ecosystem.
Physical oceanographic measurements were made on conductivity-temperature-depth (CTD) casts. Water samples were collected with bottles attached to the CTD profiler rosette. Zooplankton, larval fish, and fish eggs were collected using bongo, ring net, CalVET, Tucker, and MOCNESS (Multiple Opening Closing Net and Environmental Sampling System) gear. An Aleutian wing trawl was used to collect adult pollock.Summary of CruiseWater samples were collected from 4 stations at and around Moorings 2 and F99-BS-2A. Nutrient (27) and filtered chlorophyll (30) samples from these collections were frozen for later analysis. Fluorescence, ChlAM (chlorophyll light absorbance meter), and PAR (photosynthetically active radiation) data were recorded during all CTD casts (6).
Ichthyo- and zooplankton samples were collected from tows using 60 cm bongo nets (42) and 20 cm bongo nets (22). These samples were preserved for later analysis. Live fish eggs were collected from the plankton using the Tucker trawl.(6). All of these tows were made using the Seacat CTD. Additional tows were made with the CalVET (California Vertical Egg Tow) for preserved micro-zooplankton samples (3), and a ring net to collect live copepods (10). The MOCNESS was used to collect depth-stratified ichthyoplankton samples (6), specifically pollock eggs.
An Aleutian wing trawl (1) was used to collect adult pollock. Eggs and sperm from ripe adults were stripped and the fertilized eggs were incubated onboard for the last 18 hours of the cruise prior to being transported to Seattle, WA and Newport, OR.
Two satellite-tracked buoys were deployed during this cruise.
Scientific personnel boarded the ship in Kodiak. After a 50-hr steam to the Bering Sea, a satellite tracked buoy was deployed at station 1 (Fig.1) over the 100m isobath. The bongo survey began at station 2. After station 11, the ship left the grid in order to conduct sampling around Moorings 2 and F99-BS-2A. Although the CTD bottle firing mechanism malfunctioned on the first mooring station, the problem was corrected and water collections were successful for the other three stations. The bongo survey recommenced at station16 and continued through station 36. Two ring tows for copepods were made during this first part of the cruise.Specifics of OperationsAt this point further sampling on the grid was halted because very few pollock eggs were seen in the samples. We decided to return to station 7 where a high concentration of eggs had been observed. After a 7-hr steam, we reached station 37 and conducted the MOCNESS and Tucker tows there and at station 38. In addition, a satellite-tracked buoy was deployed at station 37 to follow the movement of the eggs.
After completing these tows, we decided to add an additional three stations because we were ahead of schedule. In addition, we chose to re-occupy stations 8 and 11-14 to repeat the bongo tows; during the initial occupations of those stations, the 333-micron codend on one side of the 60 cm net was mislabeled and was really 505 microns. When we re-occupied station 12, we repeated the CTD cast and collected the water samples that we had not collected earlier because of a malfunction.
Still ahead of schedule, we steamed south to re-occupy station 39. Earlier, we had found a high concentration of pollock eggs at this location and wanted to collect samples with the MOCNESS and live eggs from the plankton.
After this operation, the ship steamed around the area where a strong acoustical signal for pollock had been noted. After locating a promising area, the midwater trawl was deployed (station 47) and a large number of pollock was brought on board. Ripe adults were stripped and about 50,000 fertilized eggs were incubated onboard for the last 18 hours of the cruise. The ship returned to Dutch Harbor on the morning of April 19.
See Table 2, the Discrete Sample Data Base (DSDB) MF99-04 Cruise SummaryAcknowledgments
The scientific party thank the officers and crew of the NOAA ship Miller Freeman for their efforts in making this a very successful cruise. Their experience and efficiency were responsible for keeping operations on or ahead of schedule. Special thanks go to Commanding Officer Gary Petrae, Lieutenant Michael Hopkins (Field Operations Officer), and Chief Survey Technician William Floering, and Electronics Technician Scott Furnish.Tables and Figure
Table 1. Gear and sample
summary for MF99-04.
Gears | Samples | ||||
Number | casts/hauls | # collected | |||
Bongos, 20 cm (20Bon) | 22 | Adult pollock eggs spawned (Strip) | 1 | ||
Bongos, 60 cm (60Bon) | 42 | Adult pollock genetics (A-Genet) | 1 | 102 | |
CalVET tows (CalVET) | 3 | Chlorophylls (Chlor) | 5 | 30 | |
ChlAM casts (ChlAM) | 6 | Live organisms for at sea experiments (Live) | 16 | ||
CTD casts (CTD or CTDB) | 6 | Microzooplankton (MZ) | 3 | 3 | |
Fluorescence traces (Fluor) | 6 | Nutrients (Nut) | 5 | 27 | |
Live tow (zooplankton) (Ring.8) | 10 | ||||
MOCNESS (1 m2) tows (MOC1) | 6 | ||||
Photosynthetically Active Radiation (PAR) | 6 | ||||
Satellite tracked drifter deployments (SatBuoy) | 2 | ||||
Seacat CTD casts (CAT) | 49 | ||||
Tucker trawl, 1 m2 (TUCK1) | 6 |
Table 2. MF99-04 cruise
summary.
Date
(GMT) |
Time
(GMT) |
Station | Haul | FOCI Grid No. | Alternate Station No. | Depth (m) | Latitude N | Longitude W | Gear | Samples Collected | Haul Comments | ||
14-Apr | 1:26 | 1 | 1 | 100 | 54° | 39.97' | 165° | 16.51' | SatBuoy | Deploy | id# 20395 | ||
14-Apr | 4:19 | 2 | 1 | BA7 | 129 | 54° | 55.21' | 165° | 25.88' | 60Bon | QTowF,RCountE | ||
14-Apr | 4:19 | 2 | 1 | BA7 | 129 | 54° | 55.21' | 165° | 25.88' | CAT | CAT | ||
14-Apr | 5:57 | 3 | 1 | AX7 | 113 | 55° | 02.77' | 165° | 05.53' | 60Bon | QTowF,RCountE | ||
14-Apr | 5:57 | 3 | 1 | AX7 | 113 | 55° | 02.77' | 165° | 05.53' | CAT | CAT | ||
14-Apr | 7:33 | 4 | 1 | AU7 | 103 | 55° | 09.92' | 164° | 42.65' | 60Bon | QTowF,RCountE | ||
14-Apr | 7:33 | 4 | 1 | AU7 | 103 | 55° | 09.92' | 164° | 42.65' | CAT | CAT | ||
14-Apr | 9:07 | 5 | 1 | AR7 | 98 | 55° | 17.28' | 164° | 19.38' | 60Bon | QTowF,RCountE | SEACAT salinity sensor frozen | |
14-Apr | 9:07 | 5 | 1 | AR7 | 98 | 55° | 17.28' | 164° | 19.38' | CAT | CAT | SEACAT salinity sensor frozen | |
14-Apr | 10:44 | 6 | 1 | AO7 | 92 | 55° | 24.66' | 163° | 56.57' | 60Bon | QTowF,RCountE | ||
14-Apr | 10:44 | 6 | 1 | AO7 | 92 | 55° | 24.66' | 163° | 56.57' | CAT | CAT | ||
14-Apr | 12:13 | 7 | 1 | AL7 | 75 | 55° | 31.49' | 163° | 32.93' | 60Bon | QTowF,RCountE | ||
14-Apr | 12:13 | 7 | 1 | AL7 | 75 | 55° | 31.49' | 163° | 32.93' | CAT | CAT | ||
14-Apr | 13:42 | 8 | 1 | AL10 | 97 | 55° | 44.65' | 163° | 45.53' | 20Bon | QTowF | ||
14-Apr | 13:42 | 8 | 1 | AL10 | 97 | 55° | 44.65' | 163° | 45.53' | 60Bon | QTowF,RCountE | codend labeled 333 was actually 505; caught on sta 14 | |
14-Apr | 13:42 | 8 | 1 | AL10 | 97 | 55° | 44.65' | 163° | 45.53' | CAT | CAT | ||
14-Apr | 14:10 | 8 | 2 | AL10 | 97 | 55° | 44.91' | 163° | 45.66' | Ring.8 | Live | copepod egg production experiment | |
14-Apr | 14:24 | 8 | 3 | AL10 | 98 | 55° | 44.55' | 163° | 45.61' | Ring.8 | Live | copepod egg production experiment | |
14-Apr | 15:58 | 9 | 1 | AL13 | 95 | 55° | 57.74' | 163° | 58.39' | 60Bon | QTowF,RCountE | ||
14-Apr | 15:58 | 9 | 1 | AL13 | 95 | 55° | 57.74' | 163° | 58.39' | CAT | CAT | ||
14-Apr | 17:28 | 10 | 1 | AL16 | 92 | 56° | 10.85' | 164° | 11.23' | 60Bon | QTowF,RCountE | ||
14-Apr | 17:28 | 10 | 1 | AL16 | 92 | 56° | 10.85' | 164° | 11.23' | CAT | CAT | ||
14-Apr | 19:28 | 11 | 1 | AI19 | 83 | 56° | 31.28' | 164° | 00.99' | 20Bon | QTowF | Time estimated from wire out. | |
14-Apr | 19:28 | 11 | 1 | AI19 | 83 | 56° | 31.28' | 164° | 00.99' | 60Bon | QTowF,RCountE | Time estimated from wire out. Codend labeled 333 was actually 505; caught on sta 14 | |
14-Apr | 19:28 | 11 | 1 | AI19 | 83 | 56° | 31.28' | 164° | 00.99' | CAT | CAT | ||
14-Apr | 20:50 | 12 | 1 | 75 | 56° | 44.10' | 163° | 53.11' | 20Bon | QTowF | 10nm SE of old mooring 2. | ||
14-Apr | 20:50 | 12 | 1 | 75 | 56° | 44.10' | 163° | 53.11' | 60Bon | QTowF | 10nm SE of old mooring 2. Codend labeled 333 was actually 505; caught on sta 14 | ||
14-Apr | 20:50 | 12 | 1 | 75 | 56° | 44.10' | 163° | 53.11' | CAT | CAT | 10nm SE of old mooring 2. | ||
14-Apr | 22:01 | 12 | 2 | CTD001 | 75 | 56° | 43.70' | 163° | 53.64' | CTD | CHLAM,CTD,
Fluor,PAR |
10nm SE of old mooring- meant to collect bottle samples but rosette/deck unit failed on 2 tries | |
14-Apr | 23:07 | 13 | 1 | 73 | 56° | 52.58' | 164° | 03.42' | 20Bon | QTowF | old mooring 2. Flowmeters freezing | ||
14-Apr | 23:07 | 13 | 1 | 73 | 56° | 52.58' | 164° | 03.42' | 60Bon | QTowF | old mooring 2. Codend labeled 333 was actually 505; caught on station 14. Flowmeters freezing | ||
14-Apr | 23:07 | 13 | 1 | 73 | 56° | 52.58' | 164° | 03.42' | CAT | CAT | old mooring 2. | ||
14-Apr | 23:24 | 13 | 2 | 73 | 56° | 52.66' | 164° | 03.90' | CalVet | MZ | old mooring 2 -low revs? | ||
14-Apr | 23:32 | 13 | 3 | 73 | 56° | 52.70' | 164° | 03.98' | CalVet | MZ | old mooring 2 -low revs? | ||
14-Apr | 23:39 | 13 | 4 | 73 | 56° | 52.73' | 164° | 04.12' | CalVet | MZ | old mooring 2 -low revs? | ||
15-Apr | 2:27 | 13 | 5 | CTD002 | 74 | 56° | 56.52' | 164° | 03.23' | CTDB | CHLAM,Chlor,
CTD,Fluor,Nut, PAR |
old mooring 2 | |
15-Apr | 3:36 | 14 | 1 | 71 | 57° | 01.00' | 164° | 12.90' | 20Bon | QTowF | 10nm N of F99-BS-2A | ||
15-Apr | 3:36 | 14 | 1 | 71 | 57° | 01.00' | 164° | 12.90' | 60Bon | QTowF | 10nm N of F99-BS-2A - low flow meter revs on 60bon net 1. Codend labeled 333 was actually 505; changed out for next tow | ||
15-Apr | 3:36 | 14 | 1 | 71 | 57° | 01.00' | 164° | 12.90' | CAT | CAT | 10nm N of F99-BS-2A - low flow meter revs on 60bon net 1. Codend labeled 333 was actually 505; changed out for next tow | ||
15-Apr | 3:58 | 14 | 2 | CTD003 | 71 | 57° | 01.25' | 164° | 12.56' | CTDB | CHLAM,Chlor,
CTD,Fluor,Nut, PAR |
10nm N of F99-BS-2A | |
15-Apr | 5:41 | 15 | 1 | CTD004 | 76 | 56° | 46.78' | 164° | 14.59' | CTDB | CHLAM,Chlor,
CTD,Fluor,Nut, PAR |
F99-BS-2A | |
15-Apr | 6:14 | 15 | 2 | CTD005 | 76 | 56° | 46.70' | 164° | 14.64' | CTDB | CHLAM,Chlor,
CTD,Fluor,Nut, PAR |
F99-BS-2A | |
15-Apr | 8:29 | 16 | 1 | AL19 | 86 | 56° | 24.25' | 164° | 24.22' | 20Bon | QTowF | ||
15-Apr | 8:29 | 16 | 1 | AL19 | 86 | 56° | 24.25' | 164° | 24.22' | 60Bon | QTowF,RCountE | low flow revs on 60bon net 1. Flowmeter changed out for next tow | |
15-Apr | 8:29 | 16 | 1 | AL19 | 86 | 56° | 24.25' | 164° | 24.22' | CAT | CAT | ||
15-Apr | 8:55 | 16 | 2 | AL19 | 85 | 56° | 24.09' | 164° | 23.81' | Ring.8 | Live | copepod egg production experiment | |
15-Apr | 9:08 | 16 | 3 | AL19 | 85 | 56° | 24.41' | 164° | 23.75' | Ring.8 | Live | copepod egg production experiment | |
15-Apr | 10:40 | 17 | 1 | AO19 | 92 | 56° | 17.53' | 164° | 47.17' | 20Bon | QTowF | ||
15-Apr | 10:40 | 17 | 1 | AO19 | 92 | 56° | 17.53' | 164° | 47.17' | 60Bon | QTowF,RCountE | ||
15-Apr | 10:40 | 17 | 1 | AO19 | 92 | 56° | 17.53' | 164° | 47.17' | CAT | CAT | ||
15-Apr | 12:26 | 18 | 1 | AO16 | 95 | 56° | 03.81' | 164° | 34.35' | 60Bon | QTowF,RCountE | ||
15-Apr | 12:26 | 18 | 1 | AO16 | 95 | 56° | 03.81' | 164° | 34.35' | CAT | CAT | ||
15-Apr | 14:02 | 19 | 1 | AO13 | 97 | 55° | 50.83' | 164° | 21.55' | 60Bon | QTowF,RCountE | ||
15-Apr | 14:02 | 19 | 1 | AO13 | 97 | 55° | 50.83' | 164° | 21.55' | CAT | CAT | ||
15-Apr | 15:51 | 20 | 1 | A010 | 98 | 55° | 37.41' | 164° | 09.60' | 20Bon | QTowF | ||
15-Apr | 15:51 | 20 | 1 | A010 | 98 | 55° | 37.41' | 164° | 09.60' | 60Bon | QTowF,RCountE | ||
15-Apr | 15:51 | 20 | 1 | A010 | 98 | 55° | 37.41' | 164° | 09.60' | CAT | CAT | ||
15-Apr | 17:25 | 21 | 1 | AR10 | 104 | 55° | 30.43' | 164° | 31.93' | 20Bon | QTowF | ||
15-Apr | 17:25 | 21 | 1 | AR10 | 104 | 55° | 30.43' | 164° | 31.93' | 60Bon | QTowF,RCountE | ||
15-Apr | 17:25 | 21 | 1 | AR10 | 104 | 55° | 30.43' | 164° | 31.93' | CAT | CAT | ||
15-Apr | 19:28 | 22 | 1 | AR13 | 98 | 55° | 43.58' | 164° | 44.85' | 60Bon | QTowF,RCountE | ||
15-Apr | 19:28 | 22 | 1 | AR13 | 98 | 55° | 43.58' | 164° | 44.85' | CAT | CAT | ||
15-Apr | 21:07 | 23 | 1 | AR16 | 98 | 55° | 56.87' | 164° | 58.00' | 60Bon | QTowF,RCountE | ||
15-Apr | 21:07 | 23 | 1 | AR16 | 98 | 55° | 56.87' | 164° | 58.00' | CAT | CAT | ||
15-Apr | 22:41 | 24 | 1 | AR19 | 95 | 56° | 09.70' | 165° | 10.03' | 20Bon | QTowF | ||
15-Apr | 22:41 | 24 | 1 | AR19 | 95 | 56° | 09.70' | 165° | 10.03' | 60Bon | QTowF,RCountE | ||
15-Apr | 22:41 | 24 | 1 | AR19 | 95 | 56° | 09.70' | 165° | 10.03' | CAT | CAT | ||
16-Apr | 0:20 | 25 | 1 | AU19 | 100 | 56° | 02.72' | 165° | 33.22' | 20Bon | QTowF | ||
16-Apr | 0:20 | 25 | 1 | AU19 | 100 | 56° | 02.72' | 165° | 33.22' | 60Bon | QTowF,RCountE | ||
16-Apr | 0:20 | 25 | 1 | AU19 | 100 | 56° | 02.72' | 165° | 33.22' | CAT | CAT | ||
16-Apr | 2:03 | 26 | 1 | AU16 | 107 | 55° | 49.60' | 165° | 20.44' | 60Bon | QTowF,RCountE | ||
16-Apr | 2:03 | 26 | 1 | AU16 | 107 | 55° | 49.60' | 165° | 20.44' | CAT | CAT | ||
16-Apr | 3:44 | 27 | 1 | AU13 | 113 | 55° | 36.45' | 165° | 07.74' | 60Bon | QTowF,RCountE | ||
16-Apr | 3:44 | 27 | 1 | AU13 | 113 | 55° | 36.45' | 165° | 07.74' | CAT | CAT | ||
16-Apr | 5:16 | 28 | 1 | AU10 | 110 | 55° | 23.19' | 164° | 55.24' | 20Bon | QTowF | ||
16-Apr | 5:16 | 28 | 1 | AU10 | 110 | 55° | 23.19' | 164° | 55.24' | 60Bon | QTowF,RCountE | ||
16-Apr | 5:16 | 28 | 1 | AU10 | 110 | 55° | 23.19' | 164° | 55.24' | CAT | CAT | ||
16-Apr | 6:54 | 29 | 1 | AX10 | 117 | 55° | 15.93' | 165° | 18.17' | 20Bon | QTowF | ||
16-Apr | 6:54 | 29 | 1 | AX10 | 117 | 55° | 15.93' | 165° | 18.17' | 60Bon | QTowF,RCountE | ||
16-Apr | 6:54 | 29 | 1 | AX10 | 117 | 55° | 15.93' | 165° | 18.17' | CAT | CAT | ||
16-Apr | 8:28 | 30 | 1 | AX13 | 118 | 55° | 29.03' | 165° | 31.31' | 60Bon | QTowF,RCountE | ||
16-Apr | 8:28 | 30 | 1 | AX13 | 118 | 55° | 29.03' | 165° | 31.31' | CAT | CAT | ||
16-Apr | 9:59 | 31 | 1 | AX16 | 119 | 55° | 42.19' | 165° | 44.06' | 60Bon | QTowF,RCountE | ||
16-Apr | 9:59 | 31 | 1 | AX16 | 119 | 55° | 42.19' | 165° | 44.06' | CAT | CAT | ||
16-Apr | 11:30 | 32 | 1 | AX19 | 120 | 55° | 55.53' | 165° | 56.17' | 20Bon | QTowF | ||
16-Apr | 11:30 | 32 | 1 | AX19 | 120 | 55° | 55.53' | 165° | 56.17' | 60Bon | QTowF,RCountE | ||
16-Apr | 11:30 | 32 | 1 | AX19 | 120 | 55° | 55.53' | 165° | 56.17' | CAT | CAT | ||
16-Apr | 13:07 | 33 | 1 | BA19 | 130 | 55° | 48.43' | 166° | 19.02' | 20Bon | QTowF | ||
16-Apr | 13:07 | 33 | 1 | BA19 | 130 | 55° | 48.43' | 166° | 19.02' | 60Bon | QTowF,RCountE | ||
16-Apr | 13:07 | 33 | 1 | BA19 | 130 | 55° | 48.43' | 166° | 19.02' | CAT | CAT | ||
16-Apr | 13:36 | 33 | 2 | BA19 | 131 | 55° | 48.13' | 166° | 18.80' | Ring.8 | Live | copepod egg production experiment | |
16-Apr | 14:03 | 33 | 3 | BA19 | 131 | 55° | 48.65' | 166° | 19.04' | Ring.8 | Live | copepod egg production experiment | |
16-Apr | 15:56 | 34 | 1 | BA16 | 126 | 55° | 35.24' | 166° | 06.35' | 60Bon | QTowF,RCountE | ||
16-Apr | 15:56 | 34 | 1 | BA16 | 126 | 55° | 35.24' | 166° | 06.35' | CAT | CAT | ||
16-Apr | 17:29 | 35 | 1 | BA13 | 124 | 55° | 21.95' | 165° | 53.07' | 60Bon | QTowF,RCountE | ||
16-Apr | 17:29 | 35 | 1 | BA13 | 124 | 55° | 21.95' | 165° | 53.07' | CAT | CAT | ||
16-Apr | 19:00 | 36 | 1 | BA10 | 125 | 55° | 08.83' | 165° | 41.24' | 20Bon | QTowF | 20bon hung outside during transist and must of spun. Initial revs must have been wrong | |
16-Apr | 19:00 | 36 | 1 | BA10 | 125 | 55° | 08.83' | 165° | 41.24' | 60Bon | QTowF,RCountE | ||
16-Apr | 19:00 | 36 | 1 | BA10 | 125 | 55° | 08.83' | 165° | 41.24' | CAT | CAT | ||
16-Apr | 19:29 | 36 | 3 | BA10 | 126 | 55° | 08.83' | 165° | 41.21' | Ring.8 | Live | copepod egg production experiment | |
16-Apr | 19:45 | 36 | 2 | BA10 | 125 | 55° | 08.69' | 165° | 41.29' | Ring.8 | Live | copepod egg production experiment | |
17-Apr | 2:41 | 37 | 1 | AL7 | 75 | 55° | 31.63' | 163° | 32.96' | 60Bon | Discard | checking for pollock eggs | |
17-Apr | 2:41 | 37 | 1 | AL7 | 75 | 55° | 31.63' | 163° | 32.96' | CAT | CAT | checking for pollock eggs | |
17-Apr | 3:53 | 37 | 2 | AL7 | MOC001 | 75 | 55° | 31.67' | 163° | 32.48' | MOC1 | QTowF | Depths corrected for offset (7m) |
17-Apr | 4:49 | 37 | 3 | AL7 | MOC002 | 75 | 55° | 31.69' | 163° | 32.37' | MOC1 | QTowF | Depths corrected for offset (7m) |
17-Apr | 5:34 | 37 | 4 | AL7 | 75 | 55° | 31.63' | 163° | 32.54' | CAT | CAT | ||
17-Apr | 5:34 | 37 | 4 | AL7 | 75 | 55° | 31.63' | 163° | 32.54' | Tuck1 | Live | no flowmeter; for collection of live pollock eggs at bottom 20m- codends taped | |
17-Apr | 6:41 | 37 | 5 | AL7 | 75 | 55° | 31.57' | 163° | 32.38' | CAT | CAT | ||
17-Apr | 6:41 | 37 | 5 | AL7 | 75 | 55° | 31.57' | 163° | 32.38' | Tuck1 | Live | no flowmeter - for collection of live pollock eggs in top 19m - codends taped | |
17-Apr | 6:54 | 37 | 6 | AL7 | 75 | 55° | 31.47' | 163° | 32.96' | SatBuoy | Deploy | id #20397 | |
17-Apr | 9:07 | 38 | 1 | AL10 | MOC003 | 96 | 55° | 43.73' | 163° | 45.16' | MOC1 | QTowF | Depths not corrected for offset (7m) |
17-Apr | 10:13 | 38 | 2 | AL10 | 96 | 55° | 44.69' | 163° | 45.52' | MOC1 | QTowF | Depths not corrected for offset (7m) | |
17-Apr | 11:50 | 38 | 3 | AL10 | 96 | 55° | 44.73' | 163° | 45.42' | CAT | CAT | ||
17-Apr | 11:50 | 38 | 3 | AL10 | 96 | 55° | 44.73' | 163° | 45.42' | Tuck1 | Live | No flowmeter - for collection of live pollock eggs from bottom 20 m - codends taped | |
17-Apr | 12:55 | 38 | 4 | AL10 | 96 | 55° | 44.74' | 163° | 45.30' | CAT | CAT | ||
17-Apr | 12:55 | 38 | 4 | AL10 | 96 | 55° | 44.74' | 163° | 45.30' | Tuck1 | Live | No flow meter - collection of live pollock eggs from top 20 m - codends taped | |
17-Apr | 13:44 | 38 | 5 | AL10 | 96 | 55° | 44.68' | 163° | 45.44' | 20Bon | QTowF | ||
17-Apr | 13:44 | 38 | 5 | AL10 | 96 | 55° | 44.68' | 163° | 45.44' | 60Bon | QTowF | ||
17-Apr | 13:44 | 38 | 5 | AL10 | 96 | 55° | 44.68' | 163° | 45.44' | CAT | CAT | ||
17-Apr | 15:17 | 39 | 1 | AI10 | 93 | 55° | 51.81' | 163° | 22.47' | 20Bon | QTowF | ||
17-Apr | 15:17 | 39 | 1 | AI10 | 93 | 55° | 51.81' | 163° | 22.47' | 60Bon | QTowF | ||
17-Apr | 15:17 | 39 | 1 | AI10 | 93 | 55° | 51.81' | 163° | 22.47' | CAT | CAT | ||
17-Apr | 16:47 | 40 | 1 | AI13 | 94 | 56° | 05.19' | 163° | 35.13' | 60Bon | QTowF | ||
17-Apr | 16:47 | 40 | 1 | AI13 | 94 | 56° | 05.19' | 163° | 35.13' | CAT | CAT | ||
17-Apr | 18:13 | 41 | 1 | AI16 | 89 | 56° | 18.23' | 163° | 48.10' | 60Bon | QTowF | low revs due to jellyfish tentacles in the flowmeter rotor. | |
17-Apr | 18:13 | 41 | 1 | AI16 | 89 | 56° | 18.23' | 163° | 48.10' | CAT | CAT | ||
17-Apr | 19:41 | 42 | 1 | AI19 | 82 | 56° | 31.46' | 164° | 00.96' | 20Bon | QTowF | ||
17-Apr | 19:41 | 42 | 1 | AI19 | 82 | 56° | 31.46' | 164° | 00.96' | 60Bon | QTowF | ||
17-Apr | 19:41 | 42 | 1 | AI19 | 82 | 56° | 31.46' | 164° | 00.96' | CAT | CAT | ||
17-Apr | 20:58 | 43 | 1 | 76 | 56° | 43.65' | 163° | 52.44' | 20Bon | QTowF | 10nm SE of old mooring 2 | ||
17-Apr | 20:58 | 43 | 1 | 76 | 56° | 43.65' | 163° | 52.44' | 60Bon | QTowF | 10nm SE of old mooring 2 | ||
17-Apr | 20:58 | 43 | 1 | 76 | 56° | 43.65' | 163° | 52.44' | CAT | CAT | 10nm SE of old mooring 2 | ||
17-Apr | 21:53 | 43 | 2 | CTD006 | 76 | 56° | 43.76' | 163° | 52.94' | CTDB | CHLAM,Chlor,
CTD,Fluor,Nut, PAR |
10nm SE of old mooring 2 | |
17-Apr | 23:02 | 44 | 1 | 73 | 56° | 52.46' | 164° | 03.24' | 20Bon | QTowF | old mooring 2 | ||
17-Apr | 23:02 | 44 | 1 | 73 | 56° | 52.46' | 164° | 03.24' | 60Bon | QTowF | old mooring 2 | ||
17-Apr | 23:02 | 44 | 1 | 73 | 56° | 52.46' | 164° | 03.24' | CAT | CAT | old mooring 2 | ||
17-Apr | 23:17 | 44 | 2 | 73 | 56° | 52.43' | 164° | 03.19' | Ring.8 | Live | old mooring 2; copepod egg production experiment; diatom bloom | ||
17-Apr | 23:29 | 44 | 3 | 73 | 56° | 52.47' | 164° | 03.43' | Ring.8 | Live | old mooring 2; copepod egg production experiment | ||
18-Apr | 0:34 | 45 | 1 | 70 | 57° | 01.05' | 164° | 12.84' | 20Bon | QTowF | 10nm N of mooring F99-BS-2A | ||
18-Apr | 0:34 | 45 | 1 | 70 | 57° | 01.05' | 164° | 12.84' | 60Bon | QTowF | 10nm N of mooring F99-BS-2A | ||
18-Apr | 0:34 | 45 | 1 | 70 | 57° | 01.05' | 164° | 12.84' | CAT | CAT | 10nm N of mooring F99-BS-2A | ||
18-Apr | 7:02 | 46 | 1 | AI10 | 94 | 55° | 52.02' | 163° | 22.42' | CAT | CAT | ||
18-Apr | 7:02 | 46 | 1 | AI10 | 94 | 55° | 52.02' | 163° | 22.42' | Tuck1 | Live | no flowmeter. collection of live eggs from top 20m. | |
18-Apr | 7:39 | 46 | 2 | AI10 | MOC005 | 93 | 55° | 51.63' | 163° | 22.05' | MOC1 | QTowF | Depths corrected for offset (7m) |
18-Apr | 8:28 | 46 | 3 | AI10 | MOC006 | 94 | 55° | 52.52' | 163° | 23.11' | MOC1 | QTowF | Depths corrected for offset (7m) |
18-Apr | 9:13 | 46 | 4 | AI10 | 94 | 55° | 51.74' | 163° | 22.06' | CAT | CAT | ||
18-Apr | 9:13 | 46 | 4 | AI10 | 94 | 55° | 51.74' | 163° | 22.06' | Tuck1 | Live | no flowmeter reading. For collection of live eggs from bottom 20 m. | |
18-Apr | 17:50 | 47 | 1 | 99 | 55° | 26.93' | 164° | 06.98' | Aleutian | A-Genet,Strip | to spawn pollock eggs |
Figure1. MF99-04 station locations.