Cruise inventory

RRS James Clark Ross JR19970421 (AMT4, JR21)

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS James Clark Ross (74JC)
Cruise identifierJR19970421 (AMT4, JR21)
Cruise period1997-04-21 — 1997-05-27
StatusCompleted
Port of departureStanley, Falkland Islands (Malvinas)
Port of returnGrimsby, United Kingdom
ObjectivesThe Atlantic Meridional Transects (AMTs) were conceived as a means of acquiring a time series of oceanographic, biological, chemical and optical data over large latitudinal ranges (50° N to 50° S) and through a number of contrasting oceanographic provinces. The core scientific objectives are to refine out understanding of the role of the ocean biota in the biogeochemical processes, carbon fluxes and ultimately global climate and to develop remotely-sensed measurements of global primary production.

The AMTs take advantage of the twice yearly passage of the NERC vessel, RRS James Clark Ross, operated by the British Antarctic Survey, during its passage to and from Antarctica each year. Since the only ship costs involved are to cover the additional time required for course deviations and station work, the AMT is a highly cost-effective project for fundamental marine science. AMT-4 is the fourth Atlantic transect in the current series.

Aims:

1. To improve our undestanding of the relationship between physical processes and biological production.
2. Identify, define and quantify latitudinal changes in biogeochemical provinces.
3. Determine phytoplankton characteristics and photosynthetic parameters.
4. Identify nutrient regimes and their role in biogeochemical cycles.
5. Characterise plankton community structure, including the accurate determination of carbon values
6. Relate the partial pressure of CO2 (pCO2) in surface waters with the biological production
7. Acquire data for the calibration of remotely sensed obersvations (primary validation).
8. Secondary validation of remotely sensed products (e.g. chlorophyll concentration).
9. Interpret basin-scale remote sensing observations
10. Develop models that enable the interpretation of satellite imagery in terms of total water column properties.
Chief scientistTony Bale (Plymouth Marine Laboratory)
ProjectAMT
Cruise reportRRS James Clark Ross JR19970421 (AMT4, JR21) cruise report jr_amt4.pdf — access key 'C' (3.65 MB) 
Ocean/sea areas 
GeneralNorth Atlantic Ocean
South Atlantic Ocean
Track chartsRRS James Clark Ross JR19970421 (AMT4, JR21) cruise track — jr_amt4track.pdf (00 MB) 
Measurements 
Physical oceanography 
Water bottle stationsDescription: The stations were sampled for a number of things. Bottle casts were taken for plankton samples. Samples were then taken for pigment analysis. CTD casts were made. Sky and sea photo graphs were taken. Optical stations were carried out. No. of stations not noted.
CTD stationsDescription: The stations were sampled for a number of things. Bottle casts were taken for plankton samples. Samples were then taken for pigment analysis. CTD casts were made. Sky and sea photo graphs were taken. Optical stations were carried out. No. of stations not noted.
Subsurface temperature and salinity measurementsDescription: Underway measurements including salinity, temperature and fluorescence were taken. No. of samples not noted.
Optics (eg underwater light levels)Description: The stations were sampled for a number of things. Bottle casts were taken for plankton samples. Samples were then taken for pigment analysis. CTD casts were made. Sky and sea photo graphs were taken. Optical stations were carried out. No. of stations not noted.
Optics (eg underwater light levels)Description: Optical oceanography samples were taken. No. of samples not noted.
Chemical oceanography 
Carbon dioxideDescription: CO2 samples were collected for analysis. No. of samples not noted.
Biology and fisheries 
Phytoplankton pigs (eg chlorophyll, fluorescence)Description: Underway measurements including salinity, temperature and fluorescence were taken. No. of samples not noted.
PhytoplanktonDescription: Studies of phytoplankton and zooplankton communities are made. No. of sample not noted.
ZooplanktonDescription: Studies of phytoplankton and zooplankton communities are made. No. of sample not noted.
ZooplanktonDescription: The stations were sampled for a number of things. Bottle casts were taken for plankton samples. Samples were then taken for pigment analysis. CTD casts were made. Sky and sea photo graphs were taken. Optical stations were carried out. No. of stations not noted.
Data held at BODC 
Series/Profiles 
72  Bottle station
Quality control flags
Silicate concentration parameters in the water column
Vertical spatial coordinates
Nitrate concentration parameters in the water column
Reference numbers
Nitrite concentration parameters in the water column
Phosphate concentration parameters in the water column
Quality control flags
Silicate concentration parameters in the water column
Vertical spatial coordinates
Nitrate concentration parameters in the water column
Reference numbers
Nitrite concentration parameters in the water column
Phosphate concentration parameters in the water column

BODC idDate/TimeLocationDoc.
16323201997-04-21 18:20 50° 59' 29" S  57° 17' 17" W  View metadata report for BODC series reference number 1632320
16323321997-04-22 15:03 47° 37' 15" S  55° 56' 31" W  View metadata report for BODC series reference number 1632332
16323441997-04-23 15:10 43° 28' 52" S  54° 24' 9" W  View metadata report for BODC series reference number 1632344
16323561997-04-24 14:50 39° 26' 15" S  52° 58' 10" W  View metadata report for BODC series reference number 1632356
16323681997-04-30 14:37 35° 39' 6" S  49° 49' 4" W  View metadata report for BODC series reference number 1632368
16323811997-05-02 14:06 29° 19' 41" S  42° 38' 59" W  View metadata report for BODC series reference number 1632381
16323931997-05-03 13:40 26° 6' 10" S  39° 11' 13" W  View metadata report for BODC series reference number 1632393
16324001997-05-04 13:53 22° 9' 16" S  36° 37' 47" W  View metadata report for BODC series reference number 1632400
16324121997-05-05 12:41 18° 16' 20" S  34° 45' 52" W  View metadata report for BODC series reference number 1632412
16324241997-05-06 12:55 14° 6' 29" S  32° 51' 17" W  View metadata report for BODC series reference number 1632424
16324361997-05-07 12:45 10° 1' 49" S  30° 56' 48" W  View metadata report for BODC series reference number 1632436
16324481997-05-08 12:52 5° 54' 54" S  29° 7' 16" W  View metadata report for BODC series reference number 1632448
16324611997-05-09 12:42 2° 0' 57" S  27° 20' 19" W  View metadata report for BODC series reference number 1632461
16324731997-05-10 00:17 0° 7' 45" S  26° 28' 11" W  View metadata report for BODC series reference number 1632473
16324851997-05-10 12:51 1° 53' 54" N  25° 37' 41" W  View metadata report for BODC series reference number 1632485
16324971997-05-11 12:42 6° 4' 56" N  23° 38' 4" W  View metadata report for BODC series reference number 1632497
16325041997-05-12 12:47 10° 3' 18" N  21° 55' 56" W  View metadata report for BODC series reference number 1632504
16325161997-05-13 00:23 11° 44' 22" N  21° 5' 28" W  View metadata report for BODC series reference number 1632516
16325281997-05-13 12:49 13° 47' 55" N  21° 0' 29" W  View metadata report for BODC series reference number 1632528
10940221997-05-22 10:45 47° 0' 19" N  20° 0' 17" W  View metadata report for BODC series reference number 1094022
10940341997-05-13 00:23 11° 44' 22" N  21° 5' 28" W  View metadata report for BODC series reference number 1094034
10940461997-04-21 18:20 50° 59' 29" S  57° 17' 17" W  View metadata report for BODC series reference number 1094046
10940581997-04-23 15:10 43° 28' 52" S  54° 24' 9" W  View metadata report for BODC series reference number 1094058
10940711997-04-24 14:50 39° 26' 15" S  52° 58' 10" W  View metadata report for BODC series reference number 1094071
10940831997-04-30 14:37 35° 39' 6" S  49° 49' 4" W  View metadata report for BODC series reference number 1094083
10940951997-05-04 13:53 22° 9' 16" S  36° 37' 47" W  View metadata report for BODC series reference number 1094095
10941021997-05-05 12:41 18° 16' 20" S  34° 45' 52" W  View metadata report for BODC series reference number 1094102
10941141997-05-07 12:45 10° 1' 49" S  30° 56' 48" W  View metadata report for BODC series reference number 1094114
10941261997-05-08 12:52 5° 54' 54" S  29° 7' 16" W  View metadata report for BODC series reference number 1094126
10941381997-05-10 00:17 0° 7' 45" S  26° 28' 11" W  View metadata report for BODC series reference number 1094138
10941511997-05-10 12:51 1° 53' 54" N  25° 37' 41" W  View metadata report for BODC series reference number 1094151
10941631997-05-12 12:47 10° 3' 18" N  21° 55' 56" W  View metadata report for BODC series reference number 1094163
10941751997-05-13 12:49 13° 47' 55" N  21° 0' 29" W  View metadata report for BODC series reference number 1094175
10941871997-05-02 14:06 29° 19' 41" S  42° 38' 59" W  View metadata report for BODC series reference number 1094187
10941991997-05-14 11:39 17° 47' 19" N  21° 13' 14" W  View metadata report for BODC series reference number 1094199
10942061997-05-15 11:49 22° 9' 54" N  21° 33' 47" W  View metadata report for BODC series reference number 1094206
10942181997-05-15 23:23 24° 10' 9" N  21° 42' 33" W  View metadata report for BODC series reference number 1094218
10942311997-05-17 11:40 30° 2' 54" N  21° 45' 25" W  View metadata report for BODC series reference number 1094231
10942431997-05-17 23:14 31° 48' 10" N  21° 33' 37" W  View metadata report for BODC series reference number 1094243
10942551997-05-18 11:05 33° 43' 42" N  21° 17' 53" W  View metadata report for BODC series reference number 1094255
10942671997-05-19 01:11 35° 6' 21" N  20° 57' 37" W  View metadata report for BODC series reference number 1094267
10942791997-05-19 11:06 36° 13' 23" N  20° 50' 55" W  View metadata report for BODC series reference number 1094279
10942801997-05-20 12:12 39° 52' 2" N  20° 0' 27" W  View metadata report for BODC series reference number 1094280
10942921997-05-23 11:16 48° 3' 31" N  13° 58' 57" W  View metadata report for BODC series reference number 1094292
10943111997-05-24 10:14 48° 57' 14" N  8° 46' 22" W  View metadata report for BODC series reference number 1094311
10943231997-05-25 10:10 50° 4' 8" N  3° 28' 1" W  View metadata report for BODC series reference number 1094323
10943351997-04-22 15:03 47° 37' 15" S  55° 56' 31" W  View metadata report for BODC series reference number 1094335
10943471997-05-03 13:40 26° 6' 10" S  39° 11' 13" W  View metadata report for BODC series reference number 1094347
10943591997-05-06 12:55 14° 6' 29" S  32° 51' 17" W  View metadata report for BODC series reference number 1094359
10943601997-05-09 12:42 2° 0' 57" S  27° 20' 19" W  View metadata report for BODC series reference number 1094360
10943721997-05-11 12:42 6° 4' 56" N  23° 38' 4" W  View metadata report for BODC series reference number 1094372
10943841997-05-16 11:46 26° 16' 49" N  21° 53' 3" W  View metadata report for BODC series reference number 1094384
10943961997-05-19 23:11 37° 48' 43" N  20° 10' 6" W  View metadata report for BODC series reference number 1094396
10944031997-05-21 11:44 43° 58' 1" N  19° 58' 18" W  View metadata report for BODC series reference number 1094403
10944151997-05-18 17:24 34° 9' 15" N  21° 13' 45" W  View metadata report for BODC series reference number 1094415
16325411997-05-14 11:39 17° 47' 19" N  21° 13' 14" W  View metadata report for BODC series reference number 1632541
16325531997-05-15 11:49 22° 9' 54" N  21° 33' 47" W  View metadata report for BODC series reference number 1632553
16325651997-05-15 23:23 24° 10' 9" N  21° 42' 33" W  View metadata report for BODC series reference number 1632565
16325771997-05-16 11:46 26° 16' 49" N  21° 53' 3" W  View metadata report for BODC series reference number 1632577
16325891997-05-17 11:40 30° 2' 54" N  21° 45' 25" W  View metadata report for BODC series reference number 1632589
16325901997-05-17 23:14 31° 48' 10" N  21° 33' 37" W  View metadata report for BODC series reference number 1632590
16326081997-05-18 11:05 33° 43' 42" N  21° 17' 53" W  View metadata report for BODC series reference number 1632608
16326211997-05-18 17:24 34° 9' 15" N  21° 13' 45" W  View metadata report for BODC series reference number 1632621
16326331997-05-19 01:11 35° 6' 21" N  20° 57' 37" W  View metadata report for BODC series reference number 1632633
16326451997-05-19 11:06 36° 13' 23" N  20° 50' 55" W  View metadata report for BODC series reference number 1632645
16326571997-05-19 23:11 37° 48' 43" N  20° 10' 6" W  View metadata report for BODC series reference number 1632657
16326691997-05-20 12:12 39° 52' 2" N  20° 0' 27" W  View metadata report for BODC series reference number 1632669
16326701997-05-21 11:44 43° 58' 1" N  19° 58' 18" W  View metadata report for BODC series reference number 1632670
16326821997-05-22 10:45 47° 0' 19" N  20° 0' 17" W  View metadata report for BODC series reference number 1632682
16326941997-05-23 11:16 48° 3' 31" N  13° 58' 57" W  View metadata report for BODC series reference number 1632694
16327011997-05-24 10:14 48° 57' 14" N  8° 46' 22" W  View metadata report for BODC series reference number 1632701
16327131997-05-25 10:10 50° 4' 8" N  3° 28' 1" W  View metadata report for BODC series reference number 1632713
66  CTD/STD cast
Density of the water column
Vertical spatial coordinates
Salinity of the water column
Temperature of the water column
Density of the water column
Vertical spatial coordinates
Salinity of the water column
Temperature of the water column

BODC idDate/TimeLocationDoc.
10728501997-05-11 12:32 6° 4' 56" N  23° 38' 4" W  View metadata report for BODC series reference number 1072850
10728621997-05-12 12:05 10° 3' 23" N  21° 55' 34" W  View metadata report for BODC series reference number 1072862
10728741997-05-12 12:37 10° 3' 19" N  21° 55' 56" W  View metadata report for BODC series reference number 1072874
10728861997-05-16 11:36 26° 16' 49" N  21° 53' 3" W  View metadata report for BODC series reference number 1072886
10728981997-05-13 11:55 13° 47' 58" N  21° 0' 8" W  View metadata report for BODC series reference number 1072898
10729051997-05-13 12:38 13° 47' 55" N  21° 0' 29" W  View metadata report for BODC series reference number 1072905
10729171997-05-14 10:56 17° 47' 8" N  21° 13' 4" W  View metadata report for BODC series reference number 1072917
10729291997-05-14 11:27 17° 47' 19" N  21° 13' 14" W  View metadata report for BODC series reference number 1072929
10729301997-05-15 10:55 22° 10' 6" N  21° 33' 28" W  View metadata report for BODC series reference number 1072930
10729421997-05-15 11:40 22° 9' 53" N  21° 33' 47" W  View metadata report for BODC series reference number 1072942
10729541997-05-15 22:58 24° 10' 9" N  21° 42' 33" W  View metadata report for BODC series reference number 1072954
10729661997-05-16 11:02 26° 16' 41" N  21° 52' 47" W  View metadata report for BODC series reference number 1072966
10729781997-05-16 22:59 27° 57' 28" N  21° 58' 4" W  View metadata report for BODC series reference number 1072978
10729911997-05-17 10:54 30° 2' 44" N  21° 45' 39" W  View metadata report for BODC series reference number 1072991
10730051997-05-17 11:31 30° 2' 54" N  21° 45' 25" W  View metadata report for BODC series reference number 1073005
10730171997-05-17 22:33 31° 48' 10" N  21° 33' 37" W  View metadata report for BODC series reference number 1073017
10730291997-05-18 10:55 33° 43' 42" N  21° 17' 53" W  View metadata report for BODC series reference number 1073029
10730301997-05-18 11:42 33° 43' 27" N  21° 17' 19" W  View metadata report for BODC series reference number 1073030
10730421997-05-18 16:58 34° 9' 15" N  21° 13' 45" W  View metadata report for BODC series reference number 1073042
10730541997-05-18 20:55 34° 36' 38" N  21° 6' 0" W  View metadata report for BODC series reference number 1073054
10730661997-05-19 00:49 35° 6' 20" N  20° 57' 37" W  View metadata report for BODC series reference number 1073066
10730781997-05-19 04:36 35° 35' 51" N  20° 47' 44" W  View metadata report for BODC series reference number 1073078
10730911997-05-19 10:54 36° 13' 23" N  20° 50' 55" W  View metadata report for BODC series reference number 1073091
10731091997-05-19 11:39 36° 13' 4" N  20° 51' 17" W  View metadata report for BODC series reference number 1073109
10731101997-05-19 22:31 37° 48' 43" N  20° 10' 6" W  View metadata report for BODC series reference number 1073110
10731221997-05-20 10:57 39° 51' 54" N  20° 0' 9" W  View metadata report for BODC series reference number 1073122
10731341997-05-20 11:32 39° 52' 2" N  20° 0' 27" W  View metadata report for BODC series reference number 1073134
10731461997-05-21 11:06 43° 58' 1" N  19° 58' 18" W  View metadata report for BODC series reference number 1073146
10731581997-05-22 10:04 47° 0' 19" N  20° 0' 17" W  View metadata report for BODC series reference number 1073158
10731711997-05-23 11:01 48° 3' 31" N  13° 58' 56" W  View metadata report for BODC series reference number 1073171
10731831997-05-23 12:06 48° 3' 24" N  13° 58' 22" W  View metadata report for BODC series reference number 1073183
10731951997-05-24 10:02 48° 57' 15" N  8° 46' 22" W  View metadata report for BODC series reference number 1073195
10732021997-05-25 10:03 50° 4' 8" N  3° 28' 1" W  View metadata report for BODC series reference number 1073202
10724931997-05-12 23:58 11° 44' 22" N  21° 5' 28" W  View metadata report for BODC series reference number 1072493
10725001997-04-21 17:23 50° 59' 19" S  57° 17' 31" W  View metadata report for BODC series reference number 1072500
10725121997-04-21 18:08 50° 59' 29" S  57° 17' 17" W  View metadata report for BODC series reference number 1072512
10725241997-04-22 14:12 47° 37' 9" S  55° 56' 40" W  View metadata report for BODC series reference number 1072524
10725361997-04-22 14:49 47° 37' 15" S  55° 56' 31" W  View metadata report for BODC series reference number 1072536
10725481997-04-23 14:02 43° 28' 52" S  54° 24' 3" W  View metadata report for BODC series reference number 1072548
10725611997-04-23 14:57 43° 28' 52" S  54° 24' 9" W  View metadata report for BODC series reference number 1072561
10725731997-04-24 14:02 39° 25' 32" S  52° 58' 31" W  View metadata report for BODC series reference number 1072573
10725851997-04-24 14:36 39° 26' 15" S  52° 58' 10" W  View metadata report for BODC series reference number 1072585
10725971997-04-30 13:43 35° 39' 23" S  49° 48' 34" W  View metadata report for BODC series reference number 1072597
10726041997-04-30 14:27 35° 39' 6" S  49° 49' 4" W  View metadata report for BODC series reference number 1072604
10726161997-05-01 13:16 32° 36' 37" S  46° 11' 59" W  View metadata report for BODC series reference number 1072616
10726281997-05-01 13:50 32° 36' 28" S  46° 11' 40" W  View metadata report for BODC series reference number 1072628
10726411997-05-02 13:11 29° 19' 36" S  42° 39' 0" W  View metadata report for BODC series reference number 1072641
10726531997-05-02 13:56 29° 19' 40" S  42° 38' 59" W  View metadata report for BODC series reference number 1072653
10726651997-05-03 12:58 26° 6' 13" S  39° 11' 6" W  View metadata report for BODC series reference number 1072665
10726771997-05-03 13:30 26° 6' 10" S  39° 11' 13" W  View metadata report for BODC series reference number 1072677
10726891997-05-04 12:59 22° 9' 26" S  36° 37' 30" W  View metadata report for BODC series reference number 1072689
10726901997-05-04 13:43 22° 9' 16" S  36° 37' 47" W  View metadata report for BODC series reference number 1072690
10727081997-05-05 11:56 18° 16' 22" S  34° 45' 25" W  View metadata report for BODC series reference number 1072708
10727211997-05-05 12:31 18° 16' 20" S  34° 45' 52" W  View metadata report for BODC series reference number 1072721
10727331997-05-06 11:57 14° 6' 45" S  32° 50' 37" W  View metadata report for BODC series reference number 1072733
10727451997-05-06 12:43 14° 6' 29" S  32° 51' 17" W  View metadata report for BODC series reference number 1072745
10727571997-05-07 11:58 10° 1' 43" S  30° 56' 37" W  View metadata report for BODC series reference number 1072757
10727691997-05-07 12:33 10° 1' 49" S  30° 56' 48" W  View metadata report for BODC series reference number 1072769
10727701997-05-08 11:59 5° 54' 52" S  29° 6' 12" W  View metadata report for BODC series reference number 1072770
10727821997-05-08 12:41 5° 54' 54" S  29° 7' 16" W  View metadata report for BODC series reference number 1072782
10727941997-05-09 11:56 2° 1' 16" S  27° 19' 56" W  View metadata report for BODC series reference number 1072794
10728011997-05-09 12:32 2° 0' 56" S  27° 20' 19" W  View metadata report for BODC series reference number 1072801
10728131997-05-10 00:14 0° 7' 45" S  26° 28' 11" W  View metadata report for BODC series reference number 1072813
10728251997-05-10 11:57 1° 53' 28" N  25° 37' 11" W  View metadata report for BODC series reference number 1072825
10728371997-05-10 12:42 1° 53' 54" N  25° 37' 41" W  View metadata report for BODC series reference number 1072837
10728491997-05-11 11:58 6° 4' 55" N  23° 38' 13" W  View metadata report for BODC series reference number 1072849
2  Meteorological data logger
Air pressure
Solar Radiation
Wind strength and direction
Horizontal spatial co-ordinates
Date and time
Air temperature
Visible waveband radiance and irradiance measurements in the atmosphere
Air pressure
Solar Radiation
Wind strength and direction
Horizontal spatial co-ordinates
Date and time
Air temperature
Visible waveband radiance and irradiance measurements in the atmosphere

BODC idDate/TimeLocationDoc.
12228551997-04-21 12:07  — 1997-05-27 00:05 51° 41' 31" S  57° 49' 15" W — 53° 24' 18" N  0° 45' 35" E  View metadata report for BODC series reference number 1222855
12228801997-09-14 04:00  — 1997-10-17 13:13 53° 32' 54" N  0° 11' 52" E — 51° 41' 30" S  57° 49' 22" W  View metadata report for BODC series reference number 1222880
2  Multiple instrument types
Chlorophyll pigment concentrations in water bodies
Raw fluorometer output
Salinity of the water column
Horizontal spatial co-ordinates
Temperature of the water column
Date and time
Chlorophyll pigment concentrations in water bodies
Raw fluorometer output
Salinity of the water column
Horizontal spatial co-ordinates
Temperature of the water column
Date and time

BODC idDate/TimeLocationDoc.
12228671997-04-21 12:07  — 1997-05-27 00:05 51° 41' 31" S  57° 49' 15" W — 53° 24' 18" N  0° 45' 35" E  View metadata report for BODC series reference number 1222867
12228921997-09-14 04:00  — 1997-10-17 13:13 53° 32' 54" N  0° 11' 52" E — 51° 41' 30" S  57° 49' 22" W  View metadata report for BODC series reference number 1222892
2  Single-beam echosounder
Platform or instrument orientation
Horizontal platform movement
Bathymetry and Elevation
Horizontal spatial co-ordinates
Date and time
Platform or instrument orientation
Horizontal platform movement
Bathymetry and Elevation
Horizontal spatial co-ordinates
Date and time

BODC idDate/TimeLocationDoc.
12228431997-04-21 12:07  — 1997-05-27 00:05 51° 41' 31" S  57° 49' 15" W — 53° 24' 18" N  0° 45' 35" E  View metadata report for BODC series reference number 1222843
12228791997-09-14 04:00  — 1997-10-17 13:13 53° 32' 54" N  0° 11' 52" E — 51° 41' 30" S  57° 49' 22" W  View metadata report for BODC series reference number 1222879
Discrete samples 
66  CTD frame plus rosette samplerPhytoplankton taxonomic biomass in water bodies
Particulate total and organic carbon concentrations in the water column
Particulate total and organic nitrogen concentrations in the water column
Density of the water column
Bacteria non taxonomy-related biomass expressed as carbon per unit volume of the water column
Bacteria generic abundance in water bodies
Primary production in the water column
Chlorophyll pigment concentrations in water bodies
Phytoplankton taxonomic abundance in water bodies
Metadata parameters
Silicate concentration parameters in the water column
Salinity of the water column
Plankton abundance per unit volume of the water column
Carotenoid and flavenoid pigment concentrations in water bodies
Nitrate concentration parameters in the water column
Temperature of the water column
Phaeopigment concentrations in the water column
Reference numbers
Plankton biomass expressed as carbon per unit volume of the water column
Nitrite concentration parameters in the water column
Phosphate concentration parameters in the water column
140  Expendable BathythermographTemperature of the water column
306  Sample taken from ship's non-toxic supplyChlorophyll pigment concentrations in water bodies
Carotenoid and flavenoid pigment concentrations in water bodies