CRUISE REPORT

CRUISE REPORTCruise Number: RB-01-03, Leg 2FOCI Number: 1RB01Ship:NOAA Ship Ron BrownArea of Operations:Gulf of AlaskaItinerary:Date depart / port: May 13, 2001 / Seward, AKDate arrive / port: May 23, 2001 / Kodiak, AKParticipating organizations:NOAA - Alaska Fisheries Science Center (AFSC)NOAA - Pacific Marine Environmental Laboratory (PMEL)Chief Scientist:Nancy Kachel(206) 526-6780nkachel@pmel.noaa.govPersonnel:Jay ClarkNancy KachelCarol LaddBern MegreyCalvin MordySusan PicquelleSigrid SaloMargaret SullivanDestry WionF / PMELM / AFSCF / PMELF / PMELM / AFSCM / PMELF / AFSCF / PMELF / PMELM / AFSCCruise Objectives:The cruise objectives were to:(a)Detect movements of nutrient-rich slope water onto the Gulf of Alaska shelf andrelate them to temporal and spatial variations in biological distributions andprocesses;(b)Support the process studies taking place concurrently on R/V Alpha Helix forGLOBEC/GOA;1

(c)Assess the role of Amatouli Trough in replenishing nutrients to the Gulf of Alaskashelf.These objectives were met by occupying series of stations at which CTD, CalVET and bongonet hauls were taken, by sampling for nutrient and chlorophyll concentrations, and bydeploying satellite-tracked drifters. The underway flow-through measurements includedfluorescence and nitrate concentration.Summary of Cruise:(See Table 1.)Narrative:The ship departed Seward, Alaska, on 13 May 2001 at 1600 ADT (14 May 2001 0000GMT) and arrived at the first CTD/CalVET/Bong station approximately 7 h later. ConductivityTemperature-Depth (CTD) casts were made with a Sea-Bird 911-Plus instrument with dualtemperature and conductivity sensors, a WetLabs fluorometer and a Photosynthetically ActiveRadiation (PAR) sensor. Water samples for nutrient and chlorophyll analyses were taken frombottles on each cast. At sites deeper than 500 m, the fluorometer and PAR sensors wereremoved. We removed the latter sensors permanently due to technical problems after station 41.Bongo net hauls were made at most stations. CalVET net hauls were taken on the long lines ofstations from the coast to the slope, but not on the Amatouli Trough grid.A series of 4 lines of stations was occupied in support of the GLOBEC/GOA program(Fig. 1). Stations along the GLOBEC/GAK will also be used for calibrating instruments mooredat seven sites along that line. Sampling proceeded to stations 58-90 in order to investigate therole of Amatouli Trough as a pathway for nutrient replenishment of the adjacent shelf (Fig. 2).No CalVET samples were taken on this grid. On May 20, after station 77, operations werehalted for 12 h due to strong winds and rough seas. This break came after the first 3(easternmost) lines on the Amatouli grid had been completed. Stations 91 to 98 repeated stationsalong the central portion of the GAK line. These will be used in conjunction with the first set ofstations on this cruise, and another set taken by the R/V Alpha Helix earlier in the month toaccess temporal variability of the ecosystem on a shorter timescale than previously sampled bythe GLOBEC/GOA program.2

A series of 13 satellite-tracked drifters, drogued at 40 m, were deployed to measure themovement of currents in the area. First, two were released on the Gore Point line at sites ofPMEL moorings, and then seven were deployed (usually near mooring sites) on the GAK line.One was deployed at the end of the Fairfield/FOCI line at FF10. This was to help detect themotion of a nearby eddy. One more was deployed at GAK71 (a mooring site) and the last at thenorthwestern edge of the Amatouli Trough grid.The cruise ended at Kodiak Island on May 23 at approximately 0900 ADT. A summaryof operations and samples collected follows:Summary of Operations:Operation20-cm bongo (20Bon)60-cm bongo (60Bon)CalCOFI vertical egg tow net (CalVET)Seabird SeaCAT CTD (CAT)CTD without bottle samples (CTD)CTD with bottle samples (CTDB)Deployment of satellite buoy (SatBuoy)Tows828157811913Samples CollectedTows NumberSeaBird SeaCat CTD (CAT)81Extracted chlorophyll (Chlor)86469SeaBird CTD (CTD)98Deployment of buoy or mooring (Deploy)1313Stimulated fluorescence collected during CTD casts (Fluor)41Larval pollock collected for otolith analysis (L-Oto)2155Nutrients for Calvin Mordy (NutsCM)94933Any other sample type (must explain in haul comments) (Other)5656Photosynthetically Active Radiation data collected during CTD casts 41(PAR)Quantitative tow preserved in formalin (QTowF)218218Rough count of pollock juveniles (RCountJ)31Rough count of pollock larvae (RCountL)6754Summary of Cruise – Days Lost to Weather:0.5Days Lost to Equipment Failure:None3

Recommendations:NoneAcknowledgments:The scientific party would like to acknowledge the hard work and support of the officers andcrew of the NOAA Ship Ron Brown.Attachments:Table 1. Cruise SummaryFigure 1. Station Map, 4 main linesFigure 2. Station Map, Amatouli Trough4

122Alternate Depth Lat LatLon LonStation ID (m) (deg) (min) H (deg) (min) HCTD001172596.00 N 150 59.38WCAL001173596.00 N 150 59.38WDateTime Sta. Haul FOCI(GMT)(GMT) No. No. Grid ID14-May-017:3611GP114-May-018:0712GP1Table 1. Cruise Summary for FOCI Cruise 1RB01 (RB-01-03, Leg 2)Table 1-1SamplesCollectedHaulComments"Chlor, CTD, Fluor, Nut""Other, QTowF"SpE - Record both flowmeters. Combineboth codends into one jar. Forgotflowmeter counts & time. Dummied 99 minutes forflowmeter and 3 min for tow time. Tow time notrecorded. Getting oriented.20BonQTowF60Bon"L-Oto, QTowF, RCoun"CATCATCTDB"Chlor, CTD, Fluor, Nut"CalVET DiscardSpE- Combine codends in one jar. Codend "cameoff, redid tow."CalVET "Other, QTowF"SpE- Combine nets in one jar.20BonQTowF60Bon"L-Oto, QTowF, RCoun"CATCATSatBuoy DeploySAT DRIFTER #13137 DEPLOYEDCTDB"Chlor, CTD, Fluor, Nut"CalVET "Other, QTowF"SpE-Combine net one and two.20BonQTowF60Bon"L-Oto, QTowF, RCoun"CATCATCTDB"Chlor, CTD, Fluor, Nut"CalVET "Other, QTowF"SpE-Combine nets 1 and 2.20BonQTowF60Bon"L-Oto, QTowF, RCoun"CATCATSatBuoy DeploySAT DRIFTER # 13138 DEPLOYEDCTDB"Chlor, CTD, Fluor, Nut"CalVET "Other, QTowF"NETS 1 AND TWO COMBINED IN ONE20BonQTowF60Bon"L-Oto, QTowF, RCoun"CATCATCTDB"Chlor, CTD, Fluor, Nut"CalVET "Other, QTowF"NETS 1 AND 2 COMBINED IN ONE JAR20BonQTowF60Bon"L-Oto, QTowF, RCoun"CATCATCTDB"Chlor, CTD, Fluor, Nut"CalVET "Other, QTowF"NETS 1AND 2 COMBINED IN ONE JAR20BonQTowF60Bon"L-Oto, "CATCATCTDB"Chlor, C"Chlorophyl taken from wrong Nisken bottles. Nonefor 0 depth. Rest are OK. BAMCalVET "Other, "NETS 1 AND 2 COMBINED IN ONE JAR20BonQTowFHIT BOTTOM60Bon"L-Oto, "HIT BOTTOMCATCATHIT BOTTOMGearCTDBCalVET

NNNNNNNNNNNNNNNNNNNNNN3.68 N3.72 2 N31.02 N6.246.226.226.226.236.296.2431.0731.0631.026.28 N16.24 N16.24 9W39.66W39.66W39.66W34.33W149 23.33W149 9149149149149149149149 48.84W149 48.84W150150150150150151151149149149150 35.22W150 40.88W150 40.88W150 40.39W150 40.88W23:41316.09 N16.24 92323:3123:4114-May-0114-May-0199Alternate Depth Lat LatLon LonStation ID (m) (deg) (min) H (deg) (min) HCTD0096758 16.01 N 150 39.47WDateTime Sta. Haul FOCI(GMT)(GMT) No. No. Grid ID14-May-01 DBCOMBINED NETS 1 AND 2 IN ONE JAR"20BON NET 1 TANGLED IN FRAME, USED NET2"20BON NET 1 TANGLED IN FRAME, USED NET2"20BON NET 1 TANGLED IN FRAME, USED NET2Spilled small amount of 30m chlorophylCOMBINED NETS 1 AND 2 IN ONE JARHaulCommentsCholorphyl taken from wrong Nisken bottles.Depths OK. BAMNETS ONE AND TWO COMBINED IN ONE JAR"WIRE OUT NOT RECORDED, ESTIMATED AT80. Jay Clark"WIRE OUT NOT RECORDED, ESTIMATED AT80. Jay Clark"WIRE OUT NOT RECORDED, ESTIMATED AT80. Jay ClarkNo chlorophyl. Samples taken from wrong Niskenbottles. BAMNETS 1 AND 2 COMBINED IN ONE JARTable 1-2"Chlor, C""Other, "QTowF"L-Oto, "CAT"Chlor, C""Other, QTowF"NETS 1 AND 2 COMBINED IN ONE JQTowF"L-Oto, QTowF, RCoun"CAT"Chlor, CTD, Fluor, Nut" Chlorophyll taken from wrong Niskin bottle. Depthsare correct as listed - Bern M."Other, QTowF"SpE-Combined nets 1 and 2 in same jar.QTowFQTowFCAT"Chlor, CTD, Fluor, Nut" Chlorophyl taken from the wrong Nisken bottles.Depths listed are correct - Bern"Other, QTowF"SpE- Combined nets 1 and 2 in same jar.QTowFFlowmeters spinning in air - very fast."L-Oto, QTowF, RCoun" Flowmeters spinning in air - very fast.CAT"CTD, Fluor, NutsCM, P" No Chlorophyl samples. Water taken from thewrong Nisken bottles - Bern M."Other, QTowF"QTowFFlowmeters spinning fast in wind.CAT"L-Oto, ""Other, "QTowF"L-Oto, "CAT"CTD, F""CTD, F""CTD, F""Chlor, C""Other, "QTowF"CTD, F"CATQTowF"Other, "QTowFSamplesCollected"Chlor, C"

2SR153SR153SR153SR151 GAK14A1 FATE-11 -May-012020202021Alternate Depth Lat LatLon LonStation ID (m) (deg) (min) H (deg) (min) HBON016210593.72 N 149 23.33WBON016210593.72 N 149 23.33WCTD02023258 58.08 N 149 17.9WDateTime Sta. Haul FOCI(GMT)(GMT) No. No. Grid ID16-May-010:49 193SR616-May-010:49 193SR616-May-012:15 lVET20Bon60BonCATCTDBGear60BonCATCTDBTable 1-3SamplesCollectedHaulCommentsQTowFFlowmeters spinning fast in wind.CAT"CTD, Fluor, NutsCM, P" No chlorophyl. Samples taken from wrong Niskinbottles - Bern M."Other, QTowF"SpE - Combine nets 1 and 2.QTowF"L-Oto, QTowF, RCoun"CAT"CTD, Fluor, NutsCM, P" No chlorophyl. Samples taken from wrong Niskinbottles - Bern M."Other, QTowF"SpE - Combine nets 1 and 2.QTowF"L-Oto, QTowF, RCoun"CAT"Chlor, CTD, Fluor, Nut""Other, QTowF"SpE-Combine nets 1 and 2.QTowFQTowFCAT"Chlor, CTD, Fluor, Nut""Other, QTowF"SpE -Combine nets 1 and 2.QTowFQTowFCAT"Chlor, CTD, Fluor, Nut""Other, QTowF"SpE - Combine nets 1 and 2.QTowFQTowFCAT"Chlor, CTD, Fluor, Nut""Other, QTowF"SpE -Combine nets 1 and 2.QTowFQTowFCAT"Chlor, CTD, NutsCM" Fluor and Par taken off CTD."Other, QTowF"SpE - Combine nets 1 and 2.QTowFQTowFCAT"Chlor, CTD, NutsCM""Other, QTowF"SpE - Combine nets 1 and 2.QTowFQTowFCAT"Chlor, CTD, NutsCM""Other, QTowF"Combined nets 1 and 2.QTowFQTowFCAT"CTD, NutsCM""Chlor, CTD, NutsCM""Chlor, CTD, NutsCM"

3536AlternateStation BON027BON027CTD033CAL028DateTime Sta. Haul FOCI(GMT)(GMT) No. No. Grid ID17-May-017:32 312 GAK1217-May-017:48 313 GAK1217-May-017:48 313 GAK1217-May-017:48 313 GAK1217-May-018:18 314 GAK1217-May-019:54 321 GAK1117-May-01 10:37 322 GAK1117-May-01 10:55 323 GAK1117-May-01 10:55 323 GAK1117-May-01 10:55 323 GAK1117-May-01 13:08 331 GAK1017-May-01 13:51 332 W29.24W29.24W29.24W33.53WDepth Lat LatLon Lon(m) (deg) (min) H (deg) (min) H216258 14.65 N 147 56.01W220458 14.78 N 147 55.52W220458 14.78 N 147 55.52W220458 14.78 N 147 55.52W225858 15.09 N 147 54.8W143558 23.31 N 148 4.23W143558 23.31 N 148 4.23W144458 23.38 N 148 3.59W144458 23.38 N 148 3.59W144458 23.38 N 148 3.59W147658 32.45 N 148 12.62W147558 32.45 N 148 TSatBuoyCTDBCalVET20Bon60BonCATCTDBCalVETbottles @0 and 15m did not fire. Only 2 bottles at15mCombine nets 1 and 2Combine Nets 1 and 2RE-DO OF HAUL 1DRIFTER # 13141"CTD CAST IS OK, BUT BOTTLES DID N"TRIPCOMBINED NET ONE AND TWO"NET 1 SAMPLE SPILLED ON DECK, ON"USEDNET 2NETS 1 AND 2 COMBINEDDRIFTER# 13142HaulCommentsNETS 1 AND 2 COMBINEDTable 1-4"Other, QTowF"QTowF"QTowF, RCountL"CATDeploy# 13156"CTD, Fluor, NutsCM, P""Other, QTowF"Combine nets 1 and 2QTowF"QTowF, RCountL"CAT"CTD, Fluor, PAR"bottles fired @ unknown depths"Other, QTowF"Combine nets 1 and 2QTowF"QTowF, RCountL"CAT"Chlor, CTD, Fluor, PA" Bottles still wont work. Surface cholorphyll takenfrom ship flow thru system"Chlor, CTD, Fluor, Nut""Other, QTowF"Combine nets 1 and 2QTowF"QTowF, RCountL"CATQTowF"QTowF, RCountJ"CATDeploy"CTD, Fluor, PAR""Other, QTowF"QTowF"QTowF, RCountL"CAT"Chlor, CTD, Fluor, Nut""Chlor, CTD, Fluor, Nut""Other, QTowF"QTowF"L-Oto, QTowF, RCoun"CAT"Chlor, CTD, Fluor, Nut"SamplesCollected"Other, QTowF"QTowF"QTowF, RCountL"CATDeploy"Chlor, CTD, Fluor, Nut""Other, QTowF""Other, QTowF""QTowF, RCountL"CAT"Chlor, CTD, NutsCM"QTowF

2:5222:5223:050:12Alternate Depth Lat LatLon LonStation ID (m) (deg) (min) H (deg) (min) HSAT00617059 11.38 N 148 50.26WCTD04217259 15.78 N 148 54.45WCAL03517259 15.78 N 148 54.46WBON03516859 15.67 N 148 53.71WBON03516859 15.67 N 148 53.71WBON03516859 15.67 N 148 53.71WCTD04322459 24.51 N 149 2.84WCAL036

166 58 52.8 N 150 53.98W CTDB "Chlor, CTD, Fluor, Nut" 14-May-01 13:41 4 2 CAL004 166 58 52.8 N 150 54W CalVET "Other, QTowF" SpE-Combine nets 1 and 2. 14-May-01 13:59 4 3 BON004 166 58 53.23 N 150 53.4W 20Bon QTowF 14-May-01 13:59 4 3 BON004 166 58 53.23 N 150 53.4W 60Bon 14-May-01 13:59 4 3 BON004 166 58 53.23 N 150 53.4W CAT CAT 14-May-01 14 .