Spatiotemporal modeling of bycatch data: methods and a practical guide through a case study in a canadian arctic fishery
Excess bycatch of marine species during commercial fishing trips is a challenging problem in7fishery management worldwide. The aims of this paper are twofold: to introduce methods and8provide a practical guide for spatio-temporal modelling of bycatch data, as well as to apply9these methods and prese...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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ftunivgeneve:oai:unige.ch:unige:152640 2023-05-15T14:57:13+02:00 Spatiotemporal modeling of bycatch data: methods and a practical guide through a case study in a canadian arctic fishery Yan, Yuan Cantoni, Eva Field, Chris Treble, Margaret A Mills Flemming, Joanna 2022 https://archive-ouverte.unige.ch/unige:152640 eng eng info:eu-repo/semantics/altIdentifier/doi/10.1139/cjfas-2020-0267 unige:152640 https://archive-ouverte.unige.ch/unige:152640 info:eu-repo/semantics/closedAccess ISSN: 1205-7533 Canadian Journal of Fisheries and Aquatic Sciences, Vol. 79, No 1 (2022) pp. 148-158 info:eu-repo/classification/ddc/310 Bycatch Gaussian random field Geostatistics Semi-continuous data Two-part20model TMB Text info:eu-repo/semantics/article Article scientifique info:eu-repo/semantics/submittedVersion 2022 ftunivgeneve https://doi.org/10.1139/cjfas-2020-0267 2022-04-17T23:35:16Z Excess bycatch of marine species during commercial fishing trips is a challenging problem in7fishery management worldwide. The aims of this paper are twofold: to introduce methods and8provide a practical guide for spatio-temporal modelling of bycatch data, as well as to apply9these methods and present a thorough examination of Greenland shark bycatch weight in a10Canadian Arctic fishery. We introduce the spatially explicit two-part model and offer a step by11step guide for applying the model to any form of bycatch data, from data cleaning, exploratory12data analysis, variable and model selection, model checking, to results interpretation. We address13various problems encountered in decision making and suggest that researchers proceed cautiously14and always keep in mind the aims of the analysis when fitting a spatio-temporal model. Results15identified spatio-temporal hotspots and indicated month and gear type were key drivers of high16bycatch. The importance of onboard observers in providing robust bycatch data was also evident.17These findings will help to inform conservation strategies and management decisions, such as18limiting access to spatial hotspots, seasonal closures and gear restrictions. Article in Journal/Newspaper Arctic Greenland Université de Genève: Archive ouverte UNIGE Arctic Greenland Canadian Journal of Fisheries and Aquatic Sciences |
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Open Polar |
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Université de Genève: Archive ouverte UNIGE |
op_collection_id |
ftunivgeneve |
language |
English |
topic |
info:eu-repo/classification/ddc/310 Bycatch Gaussian random field Geostatistics Semi-continuous data Two-part20model TMB |
spellingShingle |
info:eu-repo/classification/ddc/310 Bycatch Gaussian random field Geostatistics Semi-continuous data Two-part20model TMB Yan, Yuan Cantoni, Eva Field, Chris Treble, Margaret A Mills Flemming, Joanna Spatiotemporal modeling of bycatch data: methods and a practical guide through a case study in a canadian arctic fishery |
topic_facet |
info:eu-repo/classification/ddc/310 Bycatch Gaussian random field Geostatistics Semi-continuous data Two-part20model TMB |
description |
Excess bycatch of marine species during commercial fishing trips is a challenging problem in7fishery management worldwide. The aims of this paper are twofold: to introduce methods and8provide a practical guide for spatio-temporal modelling of bycatch data, as well as to apply9these methods and present a thorough examination of Greenland shark bycatch weight in a10Canadian Arctic fishery. We introduce the spatially explicit two-part model and offer a step by11step guide for applying the model to any form of bycatch data, from data cleaning, exploratory12data analysis, variable and model selection, model checking, to results interpretation. We address13various problems encountered in decision making and suggest that researchers proceed cautiously14and always keep in mind the aims of the analysis when fitting a spatio-temporal model. Results15identified spatio-temporal hotspots and indicated month and gear type were key drivers of high16bycatch. The importance of onboard observers in providing robust bycatch data was also evident.17These findings will help to inform conservation strategies and management decisions, such as18limiting access to spatial hotspots, seasonal closures and gear restrictions. |
format |
Article in Journal/Newspaper |
author |
Yan, Yuan Cantoni, Eva Field, Chris Treble, Margaret A Mills Flemming, Joanna |
author_facet |
Yan, Yuan Cantoni, Eva Field, Chris Treble, Margaret A Mills Flemming, Joanna |
author_sort |
Yan, Yuan |
title |
Spatiotemporal modeling of bycatch data: methods and a practical guide through a case study in a canadian arctic fishery |
title_short |
Spatiotemporal modeling of bycatch data: methods and a practical guide through a case study in a canadian arctic fishery |
title_full |
Spatiotemporal modeling of bycatch data: methods and a practical guide through a case study in a canadian arctic fishery |
title_fullStr |
Spatiotemporal modeling of bycatch data: methods and a practical guide through a case study in a canadian arctic fishery |
title_full_unstemmed |
Spatiotemporal modeling of bycatch data: methods and a practical guide through a case study in a canadian arctic fishery |
title_sort |
spatiotemporal modeling of bycatch data: methods and a practical guide through a case study in a canadian arctic fishery |
publishDate |
2022 |
url |
https://archive-ouverte.unige.ch/unige:152640 |
geographic |
Arctic Greenland |
geographic_facet |
Arctic Greenland |
genre |
Arctic Greenland |
genre_facet |
Arctic Greenland |
op_source |
ISSN: 1205-7533 Canadian Journal of Fisheries and Aquatic Sciences, Vol. 79, No 1 (2022) pp. 148-158 |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1139/cjfas-2020-0267 unige:152640 https://archive-ouverte.unige.ch/unige:152640 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1139/cjfas-2020-0267 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
_version_ |
1766329301879226368 |