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Ekau, Werner; Geist, Simon; Bröhl, Stefanie (2015): Ichthyoplankton density and zooplankton biomass in the Benguela upwelling system during MSM19/1b in October 2011 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.843483

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Abstract:
Ichthyoplankton density (fish eggs and larvae) and bulk zooplankton biomass in October 2011 were determined for 22 stations in the northern Benguela upwelling system, based on oblique Multinet hauls during the FS Maria S. Merian MSM19/1b cruise. A HYDROBIOS Multinet, type Midi (0.25 m**2 mouth area) was equipped with five nets of 500 µm-mesh size, temperature and oxygen probes, and an inner and outer flow meter to monitor the net's trajectory (for volume filtered calculations) as well as net clogging. The Multinet was handled over the side, towed horizontally at 2 knots. Winch speed when fearing was 0.5 or 0.3 m/s, heaving velocity 0.2 - 0.3 m/s. The Multinet was towed obliquely at 22 stations sampling the upper 200 m of the water column, which were divided into five different depth strata after inspection of temperature and oxygen concentration depth profiles. Ichthyoplankton densities and zooplankton biomass were calculated for each depth stratum (=single net) from total abundance and the volume of water filtered [individuals per m**3 and g wet weight per m**3, respectively]. In addition, densities and biomass were integrated over the area for each station [individuals per m**2], as sum of calculations for each net: Sum ([individuals per m**3]*Delta (depth bot[m]-depth top [m]).
Funding:
Bundesministerium für Bildung und Forschung, Bonn (BMBF), grant/award no. 03F0650: Geochemistry and ecology of the Namibian upwelling system
Coverage:
Median Latitude: -21.972558 * Median Longitude: 13.046013 * South-bound Latitude: -23.025330 * West-bound Longitude: 11.166000 * North-bound Latitude: -21.009000 * East-bound Longitude: 14.333500
Date/Time Start: 2011-10-02T15:23:00 * Date/Time End: 2011-10-10T07:27:00
Minimum DEPTH, water: 5.0 m * Maximum DEPTH, water: 185.0 m
Event(s):
MSM19/1b_1019b (1)  * Latitude: -22.674160 * Longitude: 13.909160 * Date/Time: 2011-10-02T15:23:00 * Elevation: -130.0 m * Campaign: MSM19/1b * Basis: Maria S. Merian * Method/Device: Multiple opening/closing net, 500 µm meshsize (MSN500)
MSM19/1b_1021c (3)  * Latitude: -22.358830 * Longitude: 13.774160 * Date/Time: 2011-10-03T00:23:00 * Elevation: -128.0 m * Campaign: MSM19/1b * Basis: Maria S. Merian * Method/Device: Multiple opening/closing net, 500 µm meshsize (MSN500)
MSM19/1b_1023b (4)  * Latitude: -22.007500 * Longitude: 13.626660 * Date/Time: 2011-10-03T11:55:00 * Elevation: -119.0 m * Campaign: MSM19/1b * Basis: Maria S. Merian * Method/Device: Multiple opening/closing net, 500 µm meshsize (MSN500)
Comment:
Geocode DEPTH, water is the mid depth of net range. Empty cell describes a missing sample.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
Event labelEvent
Optional event labelEvent 2
Date/Time of eventDate/Time
Latitude of eventLatitude
Longitude of eventLongitude
Elevation of eventElevationm
Method/Device of eventMethod/Device
NumberNoGeist, Simonof net
Depth, top/minDepth topmGeist, Simonnet opening
10 Depth, bottom/maxDepth botmGeist, Simonnet closed
11 DEPTH, waterDepth watermGeocode
12 VolumeVolm3Geist, SimonCalculatedof net
13 Zooplankton, biomass, wet massZoopl biom wmmg/m3Geist, SimonCalculatedoriginal unit is in [g/100 m**3]
14 Zooplankton, biomass, wet massZoopl biom wmg/m2Geist, SimonCalculatedper station
15 Fish eggsFish eggs#Geist, SimonCalculatedper net
16 Fish eggsFish eggs#/m3Geist, SimonCalculatedoriginal unit is in [#/100 m**3]
17 Fish eggsFish eggs#/m2Geist, SimonCalculatedoriginal unit is in [#/10 m**2]
18 Fish larvaeFish larv#Geist, SimonCalculatedper net
19 Fish larvaeFish larv#/m3Geist, SimonCalculatedoriginal unit is in [#/100 m**3]
20 Fish larvaeFish larv#/m2Geist, SimonCalculatedoriginal unit is in [#/10 m**2]
Size:
1011 data points

Data

Download dataset as tab-delimited text — use the following character encoding:


Event

Event 2

Date/Time

Latitude

Longitude

Elevation [m]

Method/Device

No

Depth top [m]
10 
Depth bot [m]
11 
Depth water [m]
12 
Vol [m3]
13 
Zoopl biom wm [mg/m3]
14 
Zoopl biom wm [g/m2]
15 
Fish eggs [#]
16 
Fish eggs [#/m3]
17 
Fish eggs [#/m2]
18 
Fish larv [#]
19 
Fish larv [#/m3]
20 
Fish larv [#/m2]
MSM19/1b_1019b 12011-10-02T15:23-22.674213.9092-130Multiple opening/closing net, 500 µm meshsize180120100.094192.7659600.00000100.10638
MSM19/1b_1019b12011-10-02T15:23-22.674213.9092-130Multiple opening/closing net, 500 µm meshsize2508065.087388.6206900.0000010.01149
MSM19/1b_1019b12011-10-02T15:23-22.674213.9092-130Multiple opening/closing net, 500 µm meshsize3205035.087364.3678200.00000120.13793
MSM19/1b_1019b12011-10-02T15:23-22.674213.9092-130Multiple opening/closing net, 500 µm meshsize4102015.034288.8235300.0000090.26471
MSM19/1b_1019b12011-10-02T15:23-22.674213.9092-130Multiple opening/closing net, 500 µm meshsize50105.010230.0000035.4900.000000.0000060.6000017.38514
MSM19/1b_1021c 32011-10-03T00:23-22.358813.7742-128Multiple opening/closing net, 500 µm meshsize190120105.05529.4545500.0000000.00000
MSM19/1b_1021c32011-10-03T00:23-22.358813.7742-128Multiple opening/closing net, 500 µm meshsize2609075.032405.9375000.0000060.18750
MSM19/1b_1021c32011-10-03T00:23-22.358813.7742-128Multiple opening/closing net, 500 µm meshsize3406050.029358.6206900.00000150.51724
MSM19/1b_1021c32011-10-03T00:23-22.358813.7742-128Multiple opening/closing net, 500 µm meshsize4204030.035296.5714300.0000010.02857
MSM19/1b_1021c32011-10-03T00:23-22.358813.7742-128Multiple opening/closing net, 500 µm meshsize502010.033220.6060630.5800.000000.0000000.0000016.54126
MSM19/1b_1023b 42011-10-03T11:55-22.007513.6267-119Multiple opening/closing net, 500 µm meshsize190115102.539
MSM19/1b_1023b42011-10-03T11:55-22.007513.6267-119Multiple opening/closing net, 500 µm meshsize2609075.035628.2857100.0000010.02857
MSM19/1b_1023b42011-10-03T11:55-22.007513.6267-119Multiple opening/closing net, 500 µm meshsize3406050.022217.7272700.0000010.04545
MSM19/1b_1023b42011-10-03T11:55-22.007513.6267-119Multiple opening/closing net, 500 µm meshsize4204030.019852.6315800.0000000.00000
MSM19/1b_1023b42011-10-03T11:55-22.007513.6267-119Multiple opening/closing net, 500 µm meshsize502010.020352.5000047.3100.000000.0000000.000001.76623
MSM19/1b_1023c 52011-10-03T12:21-22.021813.6295-118Multiple opening/closing net, 500 µm meshsize190110100.013443.0769200.0000010.07692
MSM19/1b_1023c52011-10-03T12:21-22.021813.6295-118Multiple opening/closing net, 500 µm meshsize2609075.034271.4705900.00000140.41176
MSM19/1b_1023c52011-10-03T12:21-22.021813.6295-118Multiple opening/closing net, 500 µm meshsize3406050.021245.7142900.00000130.61905
MSM19/1b_1023c52011-10-03T12:21-22.021813.6295-118Multiple opening/closing net, 500 µm meshsize4204030.0201360.0000000.0000010.05000
MSM19/1b_1023c52011-10-03T12:21-22.021813.6295-118Multiple opening/closing net, 500 µm meshsize502010.019558.4210560.2900.000000.0000010.0526328.32499
MSM19/1b_1025b 62011-10-04T04:57-21.673013.4865-124Multiple opening/closing net, 500 µm meshsize190110100.031317.4193500.0000040.12903
MSM19/1b_1025b62011-10-04T04:57-21.673013.4865-124Multiple opening/closing net, 500 µm meshsize2609075.051939.0196100.00000140.27451
MSM19/1b_1025b62011-10-04T04:57-21.673013.4865-124Multiple opening/closing net, 500 µm meshsize3406050.037665.4054100.00000140.37838
MSM19/1b_1025b62011-10-04T04:57-21.673013.4865-124Multiple opening/closing net, 500 µm meshsize4204030.029348.6206900.0000010.03448
MSM19/1b_1025b62011-10-04T04:57-21.673013.4865-124Multiple opening/closing net, 500 µm meshsize502010.036181.6666758.4300.000000.0000010.0277819.62872
MSM19/1b_1027b 82011-10-04T12:49-21.338313.3428-118Multiple opening/closing net, 500 µm meshsize19010597.527152.59259110.4074180.29630
MSM19/1b_1027b82011-10-04T12:49-21.338313.3428-118Multiple opening/closing net, 500 µm meshsize2609075.043257.9069800.00000290.67442
MSM19/1b_1027b82011-10-04T12:49-21.338313.3428-118Multiple opening/closing net, 500 µm meshsize3406050.040181.0000020.05000621.55000
MSM19/1b_1027b82011-10-04T12:49-21.338313.3428-118Multiple opening/closing net, 500 µm meshsize4204030.030102.33333682.26667160.53333
MSM19/1b_1027b82011-10-04T12:49-21.338313.3428-118Multiple opening/closing net, 500 µm meshsize502010.036435.8333324.41240.6666765.77778300.8333383.01034
MSM19/1b_1029c 112011-10-05T05:26-21.019313.2023-124Multiple opening/closing net, 500 µm meshsize190110100.038109.473681714.5000000.00000
MSM19/1b_1029c112011-10-05T05:26-21.019313.2023-124Multiple opening/closing net, 500 µm meshsize2609075.06297.4193590314.5645210.01613
MSM19/1b_1029c112011-10-05T05:26-21.019313.2023-124Multiple opening/closing net, 500 µm meshsize3406050.043137.209301553.6046530.06977
MSM19/1b_1029c112011-10-05T05:26-21.019313.2023-124Multiple opening/closing net, 500 µm meshsize4204030.030179.666671163.8666700.00000
MSM19/1b_1029c112011-10-05T05:26-21.019313.2023-124Multiple opening/closing net, 500 µm meshsize502010.04662.1739112.69911.97826715.9270600.000001.87922
MSM19/1b_1030c 122011-10-05T10:25-21.010712.8340-296Multiple opening/closing net, 500 µm meshsize1140200170.010699.0566080.0754700.00000
MSM19/1b_1030c122011-10-05T10:25-21.010712.8340-296Multiple opening/closing net, 500 µm meshsize290140115.0105126.57143670.6381010.00952
MSM19/1b_1030c122011-10-05T10:25-21.010712.8340-296Multiple opening/closing net, 500 µm meshsize3609075.057145.4386090.1578910.01754
MSM19/1b_1030c122011-10-05T10:25-21.010712.8340-296Multiple opening/closing net, 500 µm meshsize4306045.04867.29167470.9791750.10417
MSM19/1b_1030c122011-10-05T10:25-21.010712.8340-296Multiple opening/closing net, 500 µm meshsize503015.050203.0000024.7400.0000070.5449160.120007.72751
MSM19/1b_1031e 142011-10-05T16:26-21.033312.4213-520Multiple opening/closing net, 500 µm meshsize1140200170.08841.4772700.0000030.03409
MSM19/1b_1031e142011-10-05T16:26-21.033312.4213-520Multiple opening/closing net, 500 µm meshsize2100140120.08332.1686700.0000000.00000
MSM19/1b_1031e142011-10-05T16:26-21.033312.4213-520Multiple opening/closing net, 500 µm meshsize37010085.07160.4225400.0000000.00000
MSM19/1b_1031e142011-10-05T16:26-21.033312.4213-520Multiple opening/closing net, 500 µm meshsize4407055.05486.4814800.0000000.00000
MSM19/1b_1031e142011-10-05T16:26-21.033312.4213-520Multiple opening/closing net, 500 µm meshsize504020.0724229.86111177.3810.013890.5555610.013892.60101
MSM19/1b_1032a 152011-10-05T21:38-21.009011.8332-1211Multiple opening/closing net, 500 µm meshsize1140200170.066175.7575810.0151510.01515
MSM19/1b_1032a152011-10-05T21:38-21.009011.8332-1211Multiple opening/closing net, 500 µm meshsize2100140120.066251.6666740.0606160.09091
MSM19/1b_1032a152011-10-05T21:38-21.009011.8332-1211Multiple opening/closing net, 500 µm meshsize37010085.062267.7419400.0000070.11290
MSM19/1b_1032a152011-10-05T21:38-21.009011.8332-1211Multiple opening/closing net, 500 µm meshsize4407055.0451103.1111160.1333340.08889
MSM19/1b_1032a152011-10-05T21:38-21.009011.8332-1211Multiple opening/closing net, 500 µm meshsize504020.0571176.66667108.80100.1754414.3508800.0000010.59922
MSM19/1b_1033a 172011-10-06T05:27-21.011511.1660-2428Multiple opening/closing net, 500 µm meshsize1140200170.052112.5000000.0000000.00000
MSM19/1b_1033a172011-10-06T05:27-21.011511.1660-2428Multiple opening/closing net, 500 µm meshsize2100140120.011177.7477520.0180270.06306
MSM19/1b_1033a172011-10-06T05:27-21.011511.1660-2428Multiple opening/closing net, 500 µm meshsize37010085.06859.8529400.0000000.00000
MSM19/1b_1033a172011-10-06T05:27-21.011511.1660-2428Multiple opening/closing net, 500 µm meshsize4407055.052228.2692330.0576950.09615
MSM19/1b_1033a172011-10-06T05:27-21.011511.1660-2428Multiple opening/closing net, 500 µm meshsize504020.061233.4426227.8410.016393.1072360.098369.34156
MSM19/1b_1034a 192011-10-06T13:06-21.157711.8338-1311Multiple opening/closing net, 500 µm meshsize1140200170.0121137.5206610.0082650.04132
MSM19/1b_1034a192011-10-06T13:06-21.157711.8338-1311Multiple opening/closing net, 500 µm meshsize2100140120.0309152.7184510.0032400.00000
MSM19/1b_1034a192011-10-06T13:06-21.157711.8338-1311Multiple opening/closing net, 500 µm meshsize37010085.0114149.2982510.0087720.01754
MSM19/1b_1034a192011-10-06T13:06-21.157711.8338-1311Multiple opening/closing net, 500 µm meshsize4407055.075318.80000110.1466710.01333
MSM19/1b_1034a192011-10-06T13:06-21.157711.8338-1311Multiple opening/closing net, 500 µm meshsize504020.0963743.95833178.16260.2708316.12181170.1770810.48899
MSM19/1b_1035c 212011-10-07T06:15-21.321212.5195-501Multiple opening/closing net, 500 µm meshsize1140200170.0124108.8709700.0000020.01613
MSM19/1b_1035c212011-10-07T06:15-21.321212.5195-501Multiple opening/closing net, 500 µm meshsize2100140120.0144105.9027820.0138900.00000
MSM19/1b_1035c212011-10-07T06:15-21.321212.5195-501Multiple opening/closing net, 500 µm meshsize37010085.075155.6000020.0266700.00000
MSM19/1b_1035c212011-10-07T06:15-21.321212.5195-501Multiple opening/closing net, 500 µm meshsize4407055.061304.0983600.0000010.01639
MSM19/1b_1035c212011-10-07T06:15-21.321212.5195-501Multiple opening/closing net, 500 µm meshsize504020.0726206.80556272.8300.000001.35556330.4583319.79288
MSM19/1b_1036c 222011-10-07T11:04-21.674512.6055-547Multiple opening/closing net, 500 µm meshsize1140200170.096149.3750000.0000000.00000
MSM19/1b_1036c222011-10-07T11:04-21.674512.6055-547Multiple opening/closing net, 500 µm meshsize2100140120.069330.0000010.0144910.01449
MSM19/1b_1036c222011-10-07T11:04-21.674512.6055-547Multiple opening/closing net, 500 µm meshsize37010085.0491662.6530600.0000060.12245
MSM19/1b_1036c222011-10-07T11:04-21.674512.6055-547Multiple opening/closing net, 500 µm meshsize4307050.0543627.4074130.05556520.96296
MSM19/1b_1036c222011-10-07T11:04-21.674512.6055-547Multiple opening/closing net, 500 µm meshsize503015.0258662.00000477.0030.120006.40193190.7600065.57170
MSM19/1b_1037c 232011-10-07T15:51-22.010712.7040-436Multiple opening/closing net, 500 µm meshsize1140200170.012874.5312510.0078110.00781
MSM19/1b_1037c232011-10-07T15:51-22.010712.7040-436Multiple opening/closing net, 500 µm meshsize2100140120.09845.9183720.0204100.00000
MSM19/1b_1037c232011-10-07T15:51-22.010712.7040-436Multiple opening/closing net, 500 µm meshsize37010085.067198.6567210.0149300.00000
MSM19/1b_1037c232011-10-07T15:51-22.010712.7040-436Multiple opening/closing net, 500 µm meshsize4207045.010362.0388310.0097140.03883
MSM19/1b_1037c232011-10-07T15:51-22.010712.7040-436Multiple opening/closing net, 500 µm meshsize502010.0433004.6511675.4602.2182710.023262.87561
MSM19/1b_1038c 252011-10-07T20:33-22.341012.8035-412Multiple opening/closing net, 500 µm meshsize1170200185.041130.2439020.0487800.00000
MSM19/1b_1038c252011-10-07T20:33-22.341012.8035-412Multiple opening/closing net, 500 µm meshsize2110170140.0139128.2014450.0359700.00000
MSM19/1b_1038c252011-10-07T20:33-22.341012.8035-412Multiple opening/closing net, 500 µm meshsize35011080.0133430.4511360.0451100.00000
MSM19/1b_1038c252011-10-07T20:33-22.341012.8035-412Multiple opening/closing net, 500 µm meshsize4205035.053864.71698000.00000
MSM19/1b_1038c252011-10-07T20:33-22.341012.8035-412Multiple opening/closing net, 500 µm meshsize502010.0291400.6896691.3806.3284500.000000.00000
MSM19/1b_1039d 262011-10-08T00:49-22.676312.9032-353Multiple opening/closing net, 500 µm meshsize1140200170.0151211.3907340.0264910.00662
MSM19/1b_1039d262011-10-08T00:49-22.676312.9032-353Multiple opening/closing net, 500 µm meshsize270140105.0233378.96996290.12446480.20601
MSM19/1b_1039d262011-10-08T00:49-22.676312.9032-353Multiple opening/closing net, 500 µm meshsize3407055.095583.78947390.41053440.46316
MSM19/1b_1039d262011-10-08T00:49-22.676312.9032-353Multiple opening/closing net, 500 µm meshsize4204030.0481169.3750060.12500380.79167
MSM19/1b_1039d262011-10-08T00:49-22.676312.9032-353Multiple opening/closing net, 500 µm meshsize502010.0546320.37037206.5210.0185225.4880100.0000044.54602
MSM19/1b_1043d 292011-10-09T14:05-23.008512.9988-505Multiple opening/closing net, 500 µm meshsize1140200170.012195.2066170.0578500.00000
MSM19/1b_1043d292011-10-09T14:05-23.008512.9988-505Multiple opening/closing net, 500 µm meshsize2100140120.010298.4313780.0784300.00000
MSM19/1b_1043d292011-10-09T14:05-23.008512.9988-505Multiple opening/closing net, 500 µm meshsize34510072.513151.45038000.00000
MSM19/1b_1043d292011-10-09T14:05-23.008512.9988-505Multiple opening/closing net, 500 µm meshsize4204532.545844.2222210.0222250.11111
MSM19/1b_1043d292011-10-09T14:05-23.008512.9988-505Multiple opening/closing net, 500 µm meshsize502010.0371254.5945958.6840.108119.3260500.000002.77778
MSM19/1b_1044c 302011-10-09T19:50-23.012013.3508-342Multiple opening/closing net, 500 µm meshsize1140200170.0114136.2280760.0526300.00000
MSM19/1b_1044c302011-10-09T19:50-23.012013.3508-342Multiple opening/closing net, 500 µm meshsize280140110.0156203.97436150.09615150.09615
MSM19/1b_1044c302011-10-09T19:50-23.012013.3508-342Multiple opening/closing net, 500 µm meshsize3508065.077176.753252643.4285780.10390
MSM19/1b_1044c302011-10-09T19:50-23.012013.3508-342Multiple opening/closing net, 500 µm meshsize4205035.061262.459023205.2459050.08197
MSM19/1b_1044c302011-10-09T19:50-23.012013.3508-342Multiple opening/closing net, 500 µm meshsize502010.026546.5384644.52130.50000279.1613240.1538514.42205
MSM19/1b_1045b 312011-10-10T00:06-23.008313.6850-149Multiple opening/closing net, 500 µm meshsize280130105.0116227.586216185.3275970.06034
MSM19/1b_1045b312011-10-10T00:06-23.008313.6850-149Multiple opening/closing net, 500 µm meshsize3508065.073297.671233344.57534700.95890
MSM19/1b_1045b312011-10-10T00:06-23.008313.6850-149Multiple opening/closing net, 500 µm meshsize4205035.062604.8387100.00000500.80645
MSM19/1b_1045b312011-10-10T00:06-23.008313.6850-149Multiple opening/closing net, 500 µm meshsize502010.046809.1304354.64130.28261409.2917630.0652257.28226
MSM19/1b_1046a 322011-10-10T04:26-23.025314.0490-135Multiple opening/closing net, 500 µm meshsize280125102.570440.85714650.9285730.04286
MSM19/1b_1046a322011-10-10T04:26-23.025314.0490-135Multiple opening/closing net, 500 µm meshsize3308055.0102385.49020120.11765450.44118
MSM19/1b_1046a322011-10-10T04:26-23.025314.0490-135Multiple opening/closing net, 500 µm meshsize4153022.5401405.0000020.05000822.05000
MSM19/1b_1046a322011-10-10T04:26-23.025314.0490-135Multiple opening/closing net, 500 µm meshsize50157.559405.7627166.2700.0000048.4180740.0678055.75434
MSM19/1b_1047a 332011-10-10T07:27-23.003314.3335-64Multiple opening/closing net, 500 µm meshsize3305844.061177.0491800.0000050.08197
MSM19/1b_1047a332011-10-10T07:27-23.003314.3335-64Multiple opening/closing net, 500 µm meshsize4153022.544206.5909110.02273761.72727
MSM19/1b_1047a332011-10-10T07:27-23.003314.3335-64Multiple opening/closing net, 500 µm meshsize50157.548204.3750011.122294.7708371.90341170.3541733.51667