Buffered random sampling: a sequential inhibited spatial point process applied to sampling in a trawl survey for northern shrimp Pandalus borealis in West Greenland waters
Abstract A stratified random sample survey has been carried out since 1988 as a component of the assessment of the stock of northern shrimp Pandalus borealis in offshore West Greenland waters. In 1999, the placing of stations independently and randomly was replaced by buffered random sampling, in wh...
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Online Access: | http://dx.doi.org/10.1016/j.icesjms.2003.11.001 http://academic.oup.com/icesjms/article-pdf/61/1/12/29120957/61-1-12.pdf |
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croxfordunivpr:10.1016/j.icesjms.2003.11.001 2024-06-09T07:46:21+00:00 Buffered random sampling: a sequential inhibited spatial point process applied to sampling in a trawl survey for northern shrimp Pandalus borealis in West Greenland waters Kingsley, M.C.S. Kanneworff, P. Carlsson, D.M. 2004 http://dx.doi.org/10.1016/j.icesjms.2003.11.001 http://academic.oup.com/icesjms/article-pdf/61/1/12/29120957/61-1-12.pdf en eng Oxford University Press (OUP) ICES Journal of Marine Science volume 61, issue 1, page 12-24 ISSN 1095-9289 1054-3139 journal-article 2004 croxfordunivpr https://doi.org/10.1016/j.icesjms.2003.11.001 2024-05-10T13:13:52Z Abstract A stratified random sample survey has been carried out since 1988 as a component of the assessment of the stock of northern shrimp Pandalus borealis in offshore West Greenland waters. In 1999, the placing of stations independently and randomly was replaced by buffered random sampling, in which stations were randomly placed but prevented from being closer together than a prescribed limit. Buffered random sampling gave a more even distribution of stations within strata, and nearest-neighbour distances were on average increased by 50%. The statistical effects were difficult to determine, but did not appear to be large, and the estimated standard errors did not change much from previous years. However, the buffered sampling method generated designs in which stations were evenly distributed over the strata, and did away with the need for subjective manual adjustment of the positions of stations which independent random sampling sometimes placed too close to another station. Article in Journal/Newspaper Greenland northern shrimp Pandalus borealis Oxford University Press Greenland ICES Journal of Marine Science 61 1 12 24 |
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Open Polar |
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Oxford University Press |
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croxfordunivpr |
language |
English |
description |
Abstract A stratified random sample survey has been carried out since 1988 as a component of the assessment of the stock of northern shrimp Pandalus borealis in offshore West Greenland waters. In 1999, the placing of stations independently and randomly was replaced by buffered random sampling, in which stations were randomly placed but prevented from being closer together than a prescribed limit. Buffered random sampling gave a more even distribution of stations within strata, and nearest-neighbour distances were on average increased by 50%. The statistical effects were difficult to determine, but did not appear to be large, and the estimated standard errors did not change much from previous years. However, the buffered sampling method generated designs in which stations were evenly distributed over the strata, and did away with the need for subjective manual adjustment of the positions of stations which independent random sampling sometimes placed too close to another station. |
format |
Article in Journal/Newspaper |
author |
Kingsley, M.C.S. Kanneworff, P. Carlsson, D.M. |
spellingShingle |
Kingsley, M.C.S. Kanneworff, P. Carlsson, D.M. Buffered random sampling: a sequential inhibited spatial point process applied to sampling in a trawl survey for northern shrimp Pandalus borealis in West Greenland waters |
author_facet |
Kingsley, M.C.S. Kanneworff, P. Carlsson, D.M. |
author_sort |
Kingsley, M.C.S. |
title |
Buffered random sampling: a sequential inhibited spatial point process applied to sampling in a trawl survey for northern shrimp Pandalus borealis in West Greenland waters |
title_short |
Buffered random sampling: a sequential inhibited spatial point process applied to sampling in a trawl survey for northern shrimp Pandalus borealis in West Greenland waters |
title_full |
Buffered random sampling: a sequential inhibited spatial point process applied to sampling in a trawl survey for northern shrimp Pandalus borealis in West Greenland waters |
title_fullStr |
Buffered random sampling: a sequential inhibited spatial point process applied to sampling in a trawl survey for northern shrimp Pandalus borealis in West Greenland waters |
title_full_unstemmed |
Buffered random sampling: a sequential inhibited spatial point process applied to sampling in a trawl survey for northern shrimp Pandalus borealis in West Greenland waters |
title_sort |
buffered random sampling: a sequential inhibited spatial point process applied to sampling in a trawl survey for northern shrimp pandalus borealis in west greenland waters |
publisher |
Oxford University Press (OUP) |
publishDate |
2004 |
url |
http://dx.doi.org/10.1016/j.icesjms.2003.11.001 http://academic.oup.com/icesjms/article-pdf/61/1/12/29120957/61-1-12.pdf |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland northern shrimp Pandalus borealis |
genre_facet |
Greenland northern shrimp Pandalus borealis |
op_source |
ICES Journal of Marine Science volume 61, issue 1, page 12-24 ISSN 1095-9289 1054-3139 |
op_doi |
https://doi.org/10.1016/j.icesjms.2003.11.001 |
container_title |
ICES Journal of Marine Science |
container_volume |
61 |
container_issue |
1 |
container_start_page |
12 |
op_container_end_page |
24 |
_version_ |
1801376169326542848 |