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 2004
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 reco...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.827190 2024-09-15T18:24:45+00:00 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 2004 Huse, Geir MEDIAN LATITUDE: 67.981928 * MEDIAN LONGITUDE: 3.891566 * SOUTH-BOUND LATITUDE: 62.500000 * WEST-BOUND LONGITUDE: -9.000000 * NORTH-BOUND LATITUDE: 72.500000 * EAST-BOUND LONGITUDE: 17.000000 * DATE/TIME START: 2004-05-15T00:00:00 * DATE/TIME END: 2004-05-15T00:00:00 2014 text/tab-separated-values, 332 data points https://doi.pangaea.de/10.1594/PANGAEA.827190 https://doi.org/10.1594/PANGAEA.827190 en eng PANGAEA https://doi.org/10.1594/PANGAEA.831204 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 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 https://doi.pangaea.de/10.1594/PANGAEA.827190 https://doi.org/10.1594/PANGAEA.827190 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Institute of Marine Research, Bergen after MacLennan et al. (2002) Area Basin Scale Analysis Synthesis and Integration Calculated from nautical area scattering coefficient CHG-2004 Clupea harengus biomass Clupea harengus abundance as Nautical Area Scattering Coefficient Code DATE/TIME EURO-BASIN Event label LATITUDE LONGITUDE dataset 2014 ftpangaea https://doi.org/10.1594/PANGAEA.82719010.1594/PANGAEA.83120410.5194/essd-7-35-201510.1121/1.39613110.1016/S0165-7836(97)00077-5 2024-07-24T02:31:39Z 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. Dataset North East Atlantic PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-9.000000,17.000000,72.500000,62.500000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
after MacLennan et al. (2002) Area Basin Scale Analysis Synthesis and Integration Calculated from nautical area scattering coefficient CHG-2004 Clupea harengus biomass Clupea harengus abundance as Nautical Area Scattering Coefficient Code DATE/TIME EURO-BASIN Event label LATITUDE LONGITUDE |
spellingShingle |
after MacLennan et al. (2002) Area Basin Scale Analysis Synthesis and Integration Calculated from nautical area scattering coefficient CHG-2004 Clupea harengus biomass Clupea harengus abundance as Nautical Area Scattering Coefficient Code DATE/TIME EURO-BASIN Event label LATITUDE LONGITUDE Huse, Geir 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 2004 |
topic_facet |
after MacLennan et al. (2002) Area Basin Scale Analysis Synthesis and Integration Calculated from nautical area scattering coefficient CHG-2004 Clupea harengus biomass Clupea harengus abundance as Nautical Area Scattering Coefficient Code DATE/TIME EURO-BASIN Event label LATITUDE LONGITUDE |
description |
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. |
format |
Dataset |
author |
Huse, Geir |
author_facet |
Huse, Geir |
author_sort |
Huse, Geir |
title |
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 2004 |
title_short |
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 2004 |
title_full |
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 2004 |
title_fullStr |
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 2004 |
title_full_unstemmed |
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 2004 |
title_sort |
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 2004 |
publisher |
PANGAEA |
publishDate |
2014 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.827190 https://doi.org/10.1594/PANGAEA.827190 |
op_coverage |
MEDIAN LATITUDE: 67.981928 * MEDIAN LONGITUDE: 3.891566 * SOUTH-BOUND LATITUDE: 62.500000 * WEST-BOUND LONGITUDE: -9.000000 * NORTH-BOUND LATITUDE: 72.500000 * EAST-BOUND LONGITUDE: 17.000000 * DATE/TIME START: 2004-05-15T00:00:00 * DATE/TIME END: 2004-05-15T00:00:00 |
long_lat |
ENVELOPE(-9.000000,17.000000,72.500000,62.500000) |
genre |
North East Atlantic |
genre_facet |
North East Atlantic |
op_source |
Institute of Marine Research, Bergen |
op_relation |
https://doi.org/10.1594/PANGAEA.831204 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 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 https://doi.pangaea.de/10.1594/PANGAEA.827190 https://doi.org/10.1594/PANGAEA.827190 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.82719010.1594/PANGAEA.83120410.5194/essd-7-35-201510.1121/1.39613110.1016/S0165-7836(97)00077-5 |
_version_ |
1810465178976780288 |