Data from: Sea surface temperature dictates movement and habitat connectivity of Atlantic cod in a coastal fjord system
Whilst movements of organisms have been studied across a myriad of environments, information is often lacking regarding spatio-seasonal patterning in complex temperate coastal systems. Highly mobile fish form an integral part of marine food webs providing linkages within habitats, between patches of...
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ftdryad:oai:v1.datadryad.org:10255/dryad.221071 2023-05-15T15:26:58+02:00 Data from: Sea surface temperature dictates movement and habitat connectivity of Atlantic cod in a coastal fjord system Staveley, Thomas Jacoby, David Perry, Diana van der Meijs, Felix Lagenfelt, Ingvar Cremle, Mikael Gullstrom, Martin Sweden 2019-08-30T15:48:55Z http://hdl.handle.net/10255/dryad.221071 https://doi.org/10.5061/dryad.m73k28k unknown doi:10.5061/dryad.m73k28k/1 doi:10.5061/dryad.m73k28k/2 doi:10.5061/dryad.m73k28k/3 doi:10.1002/ece3.5453 doi:10.5061/dryad.m73k28k Staveley T, Jacoby D, Perry D, van der Meijs F, Lagenfelt I, Cremle M, Gullstrom M (2019) Sea surface temperature dictates movement and habitat connectivity of Atlantic cod in a coastal fjord system. Ecology and Evolution. http://hdl.handle.net/10255/dryad.221071 Article 2019 ftdryad https://doi.org/10.5061/dryad.m73k28k https://doi.org/10.5061/dryad.m73k28k/1 https://doi.org/10.5061/dryad.m73k28k/2 https://doi.org/10.5061/dryad.m73k28k/3 https://doi.org/10.1002/ece3.5453 2020-01-01T16:31:03Z Whilst movements of organisms have been studied across a myriad of environments, information is often lacking regarding spatio-seasonal patterning in complex temperate coastal systems. Highly mobile fish form an integral part of marine food webs providing linkages within habitats, between patches of habitats and at different life stages. We investigated how movement, activity and connectivity patterns of Atlantic cod (Gadus morhua) are influenced by dynamic environmental conditions. Movement patterns of 39 juvenile and subadult Atlantic cod were assessed in two coastal sites in the Swedish Skagerrak for 5 months. We used passive acoustic telemetry and network analysis to assess seasonal and spatial movement patterns of cod and their relationships to different environmental factors, using statistical correlations, analysis of recurrent spatial motifs and generalised linear mixed models. Temperature, in combination with physical barriers, precludes significant connectivity (complex motifs) within the system. Sea surface temperature had a strong influence on connectivity (node strength, degree and motif frequency), where changes from warmer summer waters to colder winter waters significantly reduced movement activity of fish. As the seasons changed, movement of fish gradually decreased from large-scale (km) linkages in the summer to more localised movement patterns in the winter (limited to 100s m). Certain localised areas, however, were identified as important for connectivity throughout the whole study period, likely due to these multiple-habitat areas fulfilling functions required for foraging and shelter. This study provides new knowledge regarding inshore movement dynamics of juvenile and subadult Atlantic cod that use complex, coastal fjord systems. The findings show that connectivity, seasonal patterns in particular, should be carefully considered when selecting conservation areas to promote marine stewardship. Article in Journal/Newspaper atlantic cod Gadus morhua Dryad Digital Repository (Duke University) |
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Dryad Digital Repository (Duke University) |
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Whilst movements of organisms have been studied across a myriad of environments, information is often lacking regarding spatio-seasonal patterning in complex temperate coastal systems. Highly mobile fish form an integral part of marine food webs providing linkages within habitats, between patches of habitats and at different life stages. We investigated how movement, activity and connectivity patterns of Atlantic cod (Gadus morhua) are influenced by dynamic environmental conditions. Movement patterns of 39 juvenile and subadult Atlantic cod were assessed in two coastal sites in the Swedish Skagerrak for 5 months. We used passive acoustic telemetry and network analysis to assess seasonal and spatial movement patterns of cod and their relationships to different environmental factors, using statistical correlations, analysis of recurrent spatial motifs and generalised linear mixed models. Temperature, in combination with physical barriers, precludes significant connectivity (complex motifs) within the system. Sea surface temperature had a strong influence on connectivity (node strength, degree and motif frequency), where changes from warmer summer waters to colder winter waters significantly reduced movement activity of fish. As the seasons changed, movement of fish gradually decreased from large-scale (km) linkages in the summer to more localised movement patterns in the winter (limited to 100s m). Certain localised areas, however, were identified as important for connectivity throughout the whole study period, likely due to these multiple-habitat areas fulfilling functions required for foraging and shelter. This study provides new knowledge regarding inshore movement dynamics of juvenile and subadult Atlantic cod that use complex, coastal fjord systems. The findings show that connectivity, seasonal patterns in particular, should be carefully considered when selecting conservation areas to promote marine stewardship. |
format |
Article in Journal/Newspaper |
author |
Staveley, Thomas Jacoby, David Perry, Diana van der Meijs, Felix Lagenfelt, Ingvar Cremle, Mikael Gullstrom, Martin |
spellingShingle |
Staveley, Thomas Jacoby, David Perry, Diana van der Meijs, Felix Lagenfelt, Ingvar Cremle, Mikael Gullstrom, Martin Data from: Sea surface temperature dictates movement and habitat connectivity of Atlantic cod in a coastal fjord system |
author_facet |
Staveley, Thomas Jacoby, David Perry, Diana van der Meijs, Felix Lagenfelt, Ingvar Cremle, Mikael Gullstrom, Martin |
author_sort |
Staveley, Thomas |
title |
Data from: Sea surface temperature dictates movement and habitat connectivity of Atlantic cod in a coastal fjord system |
title_short |
Data from: Sea surface temperature dictates movement and habitat connectivity of Atlantic cod in a coastal fjord system |
title_full |
Data from: Sea surface temperature dictates movement and habitat connectivity of Atlantic cod in a coastal fjord system |
title_fullStr |
Data from: Sea surface temperature dictates movement and habitat connectivity of Atlantic cod in a coastal fjord system |
title_full_unstemmed |
Data from: Sea surface temperature dictates movement and habitat connectivity of Atlantic cod in a coastal fjord system |
title_sort |
data from: sea surface temperature dictates movement and habitat connectivity of atlantic cod in a coastal fjord system |
publishDate |
2019 |
url |
http://hdl.handle.net/10255/dryad.221071 https://doi.org/10.5061/dryad.m73k28k |
op_coverage |
Sweden |
genre |
atlantic cod Gadus morhua |
genre_facet |
atlantic cod Gadus morhua |
op_relation |
doi:10.5061/dryad.m73k28k/1 doi:10.5061/dryad.m73k28k/2 doi:10.5061/dryad.m73k28k/3 doi:10.1002/ece3.5453 doi:10.5061/dryad.m73k28k Staveley T, Jacoby D, Perry D, van der Meijs F, Lagenfelt I, Cremle M, Gullstrom M (2019) Sea surface temperature dictates movement and habitat connectivity of Atlantic cod in a coastal fjord system. Ecology and Evolution. http://hdl.handle.net/10255/dryad.221071 |
op_doi |
https://doi.org/10.5061/dryad.m73k28k https://doi.org/10.5061/dryad.m73k28k/1 https://doi.org/10.5061/dryad.m73k28k/2 https://doi.org/10.5061/dryad.m73k28k/3 https://doi.org/10.1002/ece3.5453 |
_version_ |
1766357432896847872 |