| dc.contributor.author | Foote, Kenneth G. | |
| dc.contributor.author | Rivoirard, Jacques | |
| dc.date.accessioned | 2012-08-31T15:03:11Z | |
| dc.date.available | 2012-08-31T15:03:11Z | |
| dc.date.issued | 1992 | |
| dc.identifier.citation | This report is not to be cited without prior reference to the authors | no_NO |
| dc.identifier.uri | http://hdl.handle.net/11250/105044 | |
| dc.description.abstract | An essentially pure aggregation of 0-group herring in Altafjord in
northern Norway was acoustically surveyed on each of the first three days
of December 1991. Measurements were made at 38 kHz during each survey
and at 120 kHz during part of the second survey and all of the third
survey. The data are expressed in terms of the area backscattering
coefficient, applicable to the entire water column and averaged over
intervals of 0.1 nautical mile. The spatial structure of the aggregation
is characterized by the variogram. By means of geostatistics, estimates
of abundance over the survey area are supplemented by estimates of variance. | no_NO |
| dc.language.iso | eng | no_NO |
| dc.publisher | ICES | no_NO |
| dc.relation.ispartofseries | ICES CM Documents;1992/D:10 | |
| dc.subject | acoustics | no_NO |
| dc.subject | akustikk | no_NO |
| dc.subject | stock assessment | no_NO |
| dc.subject | bestandsberegning | no_NO |
| dc.title | Geostatistical analysis of acoustic survey data on 0-group herring in a fjord | no_NO |
| dc.type | Working paper | no_NO |
| dc.subject.nsi | VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Catch: 925 | no_NO |
| dc.subject.nsi | VDP::Mathematics and natural science: 400::Geosciences: 450::Oceanography: 452 | no_NO |
| dc.source.pagenumber | 14 s. | no_NO |
