Not logged in
PANGAEA.
Data Publisher for Earth & Environmental Science

Huse, Geir (2014): Spatially explicit estimates of length and biomass of Clupea harengus (Norwegian spring spawning herring) from acoustic and trawl surveys in the North-East Atlantic in May 2011 [dataset]. Institute of Marine Research, Bergen, PANGAEA, https://doi.org/10.1594/PANGAEA.827197, In supplement to: Huse, Geir; MacKenzie, Brian R; Trenkel, Verena M; Doray, Mathieu; Nøttestad, Leif; Óskarsson, Guomundur J (2015): Spatially explicit estimates of stock sizes, structure and biomass of herring and blue whiting, and catch data of bluefin tuna. Earth System Science Data, 7(1), 35-46, https://doi.org/10.5194/essd-7-35-2015

Always quote citation above when using data! You can download the citation in several formats below.

RIS CitationBibTeX Citation

Abstract:
Acoustic estimates of herring and blue whiting abundance were obtained during the surveys using the Simrad ER60 scientific echosounder. The allocation of NASC-values to herring, blue whiting and other acoustic targets were based on the composition of the trawl catches and the appearance of echo recordings. To estimate the abundance, the allocated NASC -values were averaged for ICES-squares (0.5° latitude by 1° longitude). For each statistical square, the unit area density of fish (rA) in number per square nautical mile (N*nm-2) was calculated using standard equations (Foote et al., 1987; Toresen et al., 1998). To estimate the total abundance of fish, the unit area abundance for each statistical square was multiplied by the number of square nautical miles in each statistical square and then summed for all the statistical squares within defined subareas and over the total area. Biomass estimation was calculated by multiplying abundance in numbers by the average weight of the fish in each statistical square then summing all squares within defined subareas and over the total area. The Norwegian BEAM soft-ware (Totland and Godø 2001) was used to make estimates of total biomass.
Further details:
Foote, KG; Knudsen, H P; Vestnes, G; MacLennan, David N; Simmonds, E J (1987): Calibration of acoustic instruments for fish density estimation: a practical guide. Ices Cooperative Research Report-Rapport des Recherches Collectives, 144, 69, https://doi.org/10.1121/1.396131
Toresen, R; Grøsaeter, H; de Barros, P (1998): The acoustic method as used in the abundance estimation of capelin (Mallotus villosus) and herring (Clupea harengus) in the Barents Sea. Fisheries Research, 34, 27-38, https://doi.org/10.1016/S0165-7836(97)00077-5
Totland, A; Godø, O (2001): BEAM – an interactive GIS application for acoustic abundance estimation. In T. Nishida, P.R. Kailola and C.E. Hollingworth (Eds): Proceedings of the First Symposium on geographic Information System (GIS) in Fisheries Science. Fishery GIS Research Group. Saitama, Japan
Funding:
Seventh Framework Programme (FP7), grant/award no. 264933: Basin Scale Analysis, Synthesis and Integration
Coverage:
Median Latitude: 67.346154 * Median Longitude: 5.884615 * South-bound Latitude: 62.500000 * West-bound Longitude: -13.000000 * North-bound Latitude: 73.500000 * East-bound Longitude: 37.000000
Date/Time Start: 2011-05-15T00:00:00 * Date/Time End: 2011-05-15T00:00:00
Event(s):
CHG-2011  * Comment: gridded data from North Atlantic surveys taken place in May 2011
Comment:
The research leading to these results received (partial/full) funding from the European Commission FP7 EURO-BASIN (European Basin-Scale Anal ysis, Synthesis, and Integration; Grant Agreement 264 933).
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
Event labelEvent
LATITUDELatitudeGeocode
LONGITUDELongitudeGeocode
DATE/TIMEDate/TimeGeocode
CodeCodeHuse, Geirunique identifier of the grid
AreaAreakm2Huse, Geirof the grid
Clupea harengus abundance as Nautical Area Scattering CoefficientC. harengus NASCm2/nmi2Huse, Geirafter MacLennan et al. (2002)
Clupea harengus, biomassC. harengus biomkg/km2Huse, GeirCalculated from nautical area scattering coefficient
Size:
416 data points

Data

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


Event

Latitude

Longitude

Date/Time

Code

Area [km2]

C. harengus NASC [m2/nmi2]

C. harengus biom [kg/km2]
CHG-2011 62.51.02011-0562000000102001141763.00005073.7566
CHG-201162.53.02011-05620002001020011417187.000015048.6575
CHG-201162.5-1.02011-05620002001020111417126.000010110.1514
CHG-201162.55.02011-056200040010200570815.00001205.1543
CHG-201162.5-3.02011-0562000400102011141760.00005106.6395
CHG-201162.5-5.02011-0562000600102015137146.000012417.8596
CHG-201162.5-7.02011-056200080010201342522.00001869.5661
CHG-201162.5-9.02011-05620010001020168501.000084.8690
CHG-201163.51.02011-0563000000102001103269.00005549.2283
CHG-201163.53.02011-0563000200102001103227.00002173.1217
CHG-201163.5-1.02011-05630002001020111032157.000012619.6535
CHG-201163.55.02011-0563000400102001103213.00001046.3192
CHG-201163.5-3.02011-05630004001020111032185.000015728.2324
CHG-201163.5-5.02011-05630006001020111032263.000022353.0285
CHG-201163.5-7.02011-05630008001020111032209.000017754.3448
CHG-201163.5-9.02011-0563001000102011103255.00004670.9406
CHG-201163.5-11.02011-056300120010201110323.0000254.4584
CHG-201163.5-13.02011-0563001400102011103218.00001514.9854
CHG-201164.51.02011-05640000001020010644152.000012216.2172
CHG-201164.53.02011-0564000200102001064451.00004036.6395
CHG-201164.5-1.02011-05640002001020110644139.000011149.5545
CHG-201164.55.02011-0564000400102001064442.00003324.2895
CHG-201164.5-3.02011-05640004001020110644124.000010512.2452
CHG-201164.57.02011-0564000600102001064414.00001085.6989
CHG-201164.5-5.02011-0564000600102011064485.00007220.8358
CHG-201164.5-7.02011-05640008001020110644261.000022203.0664
CHG-201164.5-9.02011-05640010001020110644321.000027278.6838
CHG-201164.5-11.02011-0564001200102011064480.00006795.2679
CHG-201164.5-13.02011-0564001400102013193252.000021209.7903
CHG-201165.51.02011-05650000001020010253337.000026473.6197
CHG-201165.53.02011-05650002001020010253119.00009408.6779
CHG-201165.5-1.02011-0565000200102011025329.00002312.0559
CHG-201165.55.02011-0565000400102001025311.0000838.8818
CHG-201165.5-3.02011-0565000400102011025348.00004071.3017
CHG-201165.57.02011-0565000600102001025315.00001081.2376
CHG-201165.5-5.02011-0565000600102011025343.00003656.0338
CHG-201165.5-7.02011-0565000800102011025349.00004168.1858
CHG-201165.5-9.02011-0565001000102011025336.00003060.9755
CHG-201165.5-11.02011-0565001200102011025359.00005014.3361
CHG-201165.5-13.02011-05650014001020115387.0000596.5434
CHG-201166.51.02011-0566000000102009859413.000032663.9575
CHG-201166.53.02011-0566000200102009859430.000034131.1328
CHG-201166.5-1.02011-0566000200102019859133.000010537.3442
CHG-201166.55.02011-0566000400102009859128.000010075.3320
CHG-201166.5-3.02011-056600040010201985995.00008044.5195
CHG-201166.57.02011-056600060010200985918.00001282.4665
CHG-201166.5-5.02011-0566000600102019859153.000012998.8381
CHG-201166.59.02011-056600080010200985916.00001136.6715
CHG-201166.5-7.02011-05660008001020198598.0000680.7775
CHG-201166.5-13.02011-0566001400102013451321.000027355.7571
CHG-201167.51.02011-0567000000102009462524.000041269.0361
CHG-201167.53.02011-0567000200102009462173.000013641.6424
CHG-201167.5-1.02011-0567000200102019462227.000018070.6872
CHG-201167.55.02011-0567000400102009462524.000040253.5702
CHG-201167.5-3.02011-0567000400102019462153.000012315.9260
CHG-201167.57.02011-056700060010200946277.00005657.0035
CHG-201167.5-5.02011-056700060010201946217.00001374.8340
CHG-201167.59.02011-056700080010200946210.0000715.7309
CHG-201167.511.02011-05670010001020066235.0000357.8655
CHG-201168.51.02011-0568000000102009062339.000026791.0862
CHG-201168.53.02011-0568000200102009062237.000018675.1514
CHG-201168.5-1.02011-0568000200102019062321.000025691.1677
CHG-201168.55.02011-0568000400102009062130.000010245.2737
CHG-201168.5-3.02011-0568000400102019062130.000010478.1771
CHG-201168.57.02011-056800060010200906260.00004722.7694
CHG-201168.59.02011-0568000800102009062145.000010879.7175
CHG-201168.511.02011-056800100010200860974.00005552.4083
CHG-201168.513.02011-056800120010200271885.00006377.7635
CHG-201169.51.02011-056900000010200865999.00007916.6278
CHG-201169.53.02011-056900020010200865918.00001432.0763
CHG-201169.5-1.02011-05690002001020186592.0000160.4077
CHG-201169.55.02011-0569000400102008659182.000014435.2941
CHG-201169.5-3.02011-056900040010201865913.00001042.0297
CHG-201169.57.02011-0569000600102008659338.000026745.3815
CHG-201169.59.02011-056900080010200865951.00004028.8031
CHG-201169.511.02011-05690010001020086593.0000230.2737
CHG-201169.517.02011-056900160010200173251.00003626.5929
CHG-201170.51.02011-05700000001020082531.000080.1747
CHG-201170.53.02011-05700002001020082531.000079.7816
CHG-201170.55.02011-05700004001020082535.0000397.7548
CHG-201170.57.02011-057000060010200825315.00001193.2644
CHG-201170.59.02011-057000080010200825327.00002139.9621
CHG-201170.511.02011-057000100010200825320.00001579.3361
CHG-201170.515.02011-05700014001020082532.0000150.1951
CHG-201170.517.02011-05700016001020082531.000071.1095
CHG-201170.531.02011-05700030001020033015.0000153.7857
CHG-201170.533.02011-057000320010200825398.00003186.9977
CHG-201170.535.02011-05700034001020082537.0000221.4298
CHG-201170.537.02011-05700036001020082532.000060.5183
CHG-201171.515.02011-057100140010200784552.00004107.7985
CHG-201171.521.02011-05710020001020078452.000066.6482
CHG-201171.523.02011-057100220010200706193.00002999.5545
CHG-201171.525.02011-057100240010200627617.0000550.6872
CHG-201171.527.02011-057100260010200549216.0000527.8130
CHG-201171.529.02011-057100280010200706117.0000527.0006
CHG-201171.531.02011-057100300010200784522.0000667.6383
CHG-201171.533.02011-0571003200102007845100.00003174.4496
CHG-201171.535.02011-057100340010200784513.0000403.2411
CHG-201171.537.02011-05710036001020054922.000060.5183
CHG-201172.527.02011-057200260010200111535.00001138.9691
CHG-201172.531.02011-05720030001020011152.000063.7070
CHG-201172.533.02011-05720032001020014872.000061.4269
CHG-201172.535.02011-05720034001020037172.000061.4269
CHG-201173.511.02011-057300100010200702230.00002386.5259