Dispersal of the introduced red king crab (Paralithodes camtschaticus) in Norwegian waters: a tag-recapture study
Abstract The aim of this study was to explore the effect of sex, size, region, and density on dispersal rate of the introduced red king crab (Paralithodes camtschaticus) in Norwegian waters. We examined the effect of these factors using logistic regression analysis. Tag-recapture data corrected for...
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Oxford University Press (OUP)
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Online Access: | http://dx.doi.org/10.1093/icesjms/fst241 http://academic.oup.com/icesjms/article-pdf/71/7/1966/29151919/fst241.pdf |
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croxfordunivpr:10.1093/icesjms/fst241 2024-09-15T18:29:09+00:00 Dispersal of the introduced red king crab (Paralithodes camtschaticus) in Norwegian waters: a tag-recapture study Windsland, Kristin Hvingel, Carsten Nilssen, Einar M. Sundet, Jan H. 2014 http://dx.doi.org/10.1093/icesjms/fst241 http://academic.oup.com/icesjms/article-pdf/71/7/1966/29151919/fst241.pdf en eng Oxford University Press (OUP) ICES Journal of Marine Science volume 71, issue 7, page 1966-1976 ISSN 1095-9289 1054-3139 journal-article 2014 croxfordunivpr https://doi.org/10.1093/icesjms/fst241 2024-08-05T04:31:17Z Abstract The aim of this study was to explore the effect of sex, size, region, and density on dispersal rate of the introduced red king crab (Paralithodes camtschaticus) in Norwegian waters. We examined the effect of these factors using logistic regression analysis. Tag-recapture data corrected for fishing effort enabled us to estimate dispersal rates from four main regions along the Norwegian coast: Varangerfjorden, Tanafjorden, Laksefjorden, and Porsangerfjorden. The probability of dispersal was independent of sex and size, but both the logistic regression and the evaluation of corrected tag-recapture data revealed differences in dispersal between region and with increasing duration. The recapture data indicated a relationship between population density and dispersal within research regions but not between population density and dispersal between research regions. Our main conclusion is that there are large individual differences in dispersal ability and the range expansion of red king crab is a result of (i) the presence of long-distance dispersers and (ii) time-dependent slow migration by short distance dispersers. We also conclude that there appears less dispersal in Norwegian waters than in native waters, which might be caused by differences in geographical complexity. Article in Journal/Newspaper Paralithodes camtschaticus Porsangerfjorden Red king crab Varangerfjord* Varangerfjorden Oxford University Press ICES Journal of Marine Science 71 7 1966 1976 |
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Open Polar |
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Oxford University Press |
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croxfordunivpr |
language |
English |
description |
Abstract The aim of this study was to explore the effect of sex, size, region, and density on dispersal rate of the introduced red king crab (Paralithodes camtschaticus) in Norwegian waters. We examined the effect of these factors using logistic regression analysis. Tag-recapture data corrected for fishing effort enabled us to estimate dispersal rates from four main regions along the Norwegian coast: Varangerfjorden, Tanafjorden, Laksefjorden, and Porsangerfjorden. The probability of dispersal was independent of sex and size, but both the logistic regression and the evaluation of corrected tag-recapture data revealed differences in dispersal between region and with increasing duration. The recapture data indicated a relationship between population density and dispersal within research regions but not between population density and dispersal between research regions. Our main conclusion is that there are large individual differences in dispersal ability and the range expansion of red king crab is a result of (i) the presence of long-distance dispersers and (ii) time-dependent slow migration by short distance dispersers. We also conclude that there appears less dispersal in Norwegian waters than in native waters, which might be caused by differences in geographical complexity. |
format |
Article in Journal/Newspaper |
author |
Windsland, Kristin Hvingel, Carsten Nilssen, Einar M. Sundet, Jan H. |
spellingShingle |
Windsland, Kristin Hvingel, Carsten Nilssen, Einar M. Sundet, Jan H. Dispersal of the introduced red king crab (Paralithodes camtschaticus) in Norwegian waters: a tag-recapture study |
author_facet |
Windsland, Kristin Hvingel, Carsten Nilssen, Einar M. Sundet, Jan H. |
author_sort |
Windsland, Kristin |
title |
Dispersal of the introduced red king crab (Paralithodes camtschaticus) in Norwegian waters: a tag-recapture study |
title_short |
Dispersal of the introduced red king crab (Paralithodes camtschaticus) in Norwegian waters: a tag-recapture study |
title_full |
Dispersal of the introduced red king crab (Paralithodes camtschaticus) in Norwegian waters: a tag-recapture study |
title_fullStr |
Dispersal of the introduced red king crab (Paralithodes camtschaticus) in Norwegian waters: a tag-recapture study |
title_full_unstemmed |
Dispersal of the introduced red king crab (Paralithodes camtschaticus) in Norwegian waters: a tag-recapture study |
title_sort |
dispersal of the introduced red king crab (paralithodes camtschaticus) in norwegian waters: a tag-recapture study |
publisher |
Oxford University Press (OUP) |
publishDate |
2014 |
url |
http://dx.doi.org/10.1093/icesjms/fst241 http://academic.oup.com/icesjms/article-pdf/71/7/1966/29151919/fst241.pdf |
genre |
Paralithodes camtschaticus Porsangerfjorden Red king crab Varangerfjord* Varangerfjorden |
genre_facet |
Paralithodes camtschaticus Porsangerfjorden Red king crab Varangerfjord* Varangerfjorden |
op_source |
ICES Journal of Marine Science volume 71, issue 7, page 1966-1976 ISSN 1095-9289 1054-3139 |
op_doi |
https://doi.org/10.1093/icesjms/fst241 |
container_title |
ICES Journal of Marine Science |
container_volume |
71 |
container_issue |
7 |
container_start_page |
1966 |
op_container_end_page |
1976 |
_version_ |
1810470561684389888 |