New perspectives on fish movement: kernel and GAM smoothers applied to a century of tagging data on coastal Atlantic cod
Tagging–recovery studies have been used successfully on many occasions, and the data analysed in a variety of ways with respect to fish movement. Here we provide a synoptic account of useful statistical techniques for delimiting area utilization and movement patterns of a population of individuals....
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Online Access: | http://hdl.handle.net/11250/108746 https://doi.org/10.3354/meps07721 |
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ftimr:oai:imr.brage.unit.no:11250/108746 2023-05-15T15:26:59+02:00 New perspectives on fish movement: kernel and GAM smoothers applied to a century of tagging data on coastal Atlantic cod Espeland, Sigurd Heiberg Olsen, Esben Moland Knutsen, Halvor Gjøsæter, Jakob Danielssen, Didrik S. Stenseth, Nils Christian 2008-12-09 application/pdf http://hdl.handle.net/11250/108746 https://doi.org/10.3354/meps07721 eng eng Inter-Research urn:issn:0171-8630 urn:issn:1616-1599 http://hdl.handle.net/11250/108746 http://dx.doi.org/10.3354/meps07721 231-241 372 Marine Ecology Progress Series atlantic cod atlantisk torsk population structure populasjonsstruktur VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Resource biology: 921 Journal article Peer reviewed 2008 ftimr https://doi.org/10.3354/meps07721 2021-09-23T20:16:00Z Tagging–recovery studies have been used successfully on many occasions, and the data analysed in a variety of ways with respect to fish movement. Here we provide a synoptic account of useful statistical techniques for delimiting area utilization and movement patterns of a population of individuals. We focus specifically on kernel smoothing for population utilization distribution and generalized additive models for temporal movement patterns. Furthermore, we use these 2 techniques to re-analyse data from tagging studies on coastal Atlantic cod Gadus morhua, shedding new light on one of the underlying mechanisms determining the population structure of the coastal cod along the Norwegian Skagerrak coast. Cod were found to use small areas. On average 25% of a population used areas smaller than 10 km2, while 95% of a population used areas smaller than 160 km2. The movements displayed were fjord-limited and predominantly within the bounds of the population’s home range. By re-analysing existing data on neutral genetic markers, we show that the cross-distance of the area utilized was smaller than the distance over which pair-wise genetic differences appear. Article in Journal/Newspaper atlantic cod Gadus morhua Institute for Marine Research: Brage IMR Gam ENVELOPE(-57.955,-57.955,-61.923,-61.923) Marine Ecology Progress Series 372 231 241 |
institution |
Open Polar |
collection |
Institute for Marine Research: Brage IMR |
op_collection_id |
ftimr |
language |
English |
topic |
atlantic cod atlantisk torsk population structure populasjonsstruktur VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Resource biology: 921 |
spellingShingle |
atlantic cod atlantisk torsk population structure populasjonsstruktur VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Resource biology: 921 Espeland, Sigurd Heiberg Olsen, Esben Moland Knutsen, Halvor Gjøsæter, Jakob Danielssen, Didrik S. Stenseth, Nils Christian New perspectives on fish movement: kernel and GAM smoothers applied to a century of tagging data on coastal Atlantic cod |
topic_facet |
atlantic cod atlantisk torsk population structure populasjonsstruktur VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Resource biology: 921 |
description |
Tagging–recovery studies have been used successfully on many occasions, and the data analysed in a variety of ways with respect to fish movement. Here we provide a synoptic account of useful statistical techniques for delimiting area utilization and movement patterns of a population of individuals. We focus specifically on kernel smoothing for population utilization distribution and generalized additive models for temporal movement patterns. Furthermore, we use these 2 techniques to re-analyse data from tagging studies on coastal Atlantic cod Gadus morhua, shedding new light on one of the underlying mechanisms determining the population structure of the coastal cod along the Norwegian Skagerrak coast. Cod were found to use small areas. On average 25% of a population used areas smaller than 10 km2, while 95% of a population used areas smaller than 160 km2. The movements displayed were fjord-limited and predominantly within the bounds of the population’s home range. By re-analysing existing data on neutral genetic markers, we show that the cross-distance of the area utilized was smaller than the distance over which pair-wise genetic differences appear. |
format |
Article in Journal/Newspaper |
author |
Espeland, Sigurd Heiberg Olsen, Esben Moland Knutsen, Halvor Gjøsæter, Jakob Danielssen, Didrik S. Stenseth, Nils Christian |
author_facet |
Espeland, Sigurd Heiberg Olsen, Esben Moland Knutsen, Halvor Gjøsæter, Jakob Danielssen, Didrik S. Stenseth, Nils Christian |
author_sort |
Espeland, Sigurd Heiberg |
title |
New perspectives on fish movement: kernel and GAM smoothers applied to a century of tagging data on coastal Atlantic cod |
title_short |
New perspectives on fish movement: kernel and GAM smoothers applied to a century of tagging data on coastal Atlantic cod |
title_full |
New perspectives on fish movement: kernel and GAM smoothers applied to a century of tagging data on coastal Atlantic cod |
title_fullStr |
New perspectives on fish movement: kernel and GAM smoothers applied to a century of tagging data on coastal Atlantic cod |
title_full_unstemmed |
New perspectives on fish movement: kernel and GAM smoothers applied to a century of tagging data on coastal Atlantic cod |
title_sort |
new perspectives on fish movement: kernel and gam smoothers applied to a century of tagging data on coastal atlantic cod |
publisher |
Inter-Research |
publishDate |
2008 |
url |
http://hdl.handle.net/11250/108746 https://doi.org/10.3354/meps07721 |
long_lat |
ENVELOPE(-57.955,-57.955,-61.923,-61.923) |
geographic |
Gam |
geographic_facet |
Gam |
genre |
atlantic cod Gadus morhua |
genre_facet |
atlantic cod Gadus morhua |
op_source |
231-241 372 Marine Ecology Progress Series |
op_relation |
urn:issn:0171-8630 urn:issn:1616-1599 http://hdl.handle.net/11250/108746 http://dx.doi.org/10.3354/meps07721 |
op_doi |
https://doi.org/10.3354/meps07721 |
container_title |
Marine Ecology Progress Series |
container_volume |
372 |
container_start_page |
231 |
op_container_end_page |
241 |
_version_ |
1766357445216567296 |