ATLAS Deliverable 1.6: Biologically realistic Lagrangian dispersal and connectivity
Larval behaviours are predicted to impact their long-term spreading, with wider spreading being everywhere associated with more time spent higher in the water column. The strength of this enhanced dispersal varies regionally (from strong to very strong). Dispersal pathways are predicted to be affect...
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ftdatacite:10.5281/zenodo.3548734 2023-05-15T17:28:25+02:00 ATLAS Deliverable 1.6: Biologically realistic Lagrangian dispersal and connectivity Fox, Alan Gary, Stefan Biastoch, Arne Roberts, J Murray 2019 https://dx.doi.org/10.5281/zenodo.3548734 https://zenodo.org/record/3548734 unknown Zenodo https://zenodo.org/communities/atlas https://dx.doi.org/10.5281/zenodo.3548344 https://dx.doi.org/10.5281/zenodo.3548735 https://zenodo.org/communities/atlas Open Access Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 info:eu-repo/semantics/openAccess CC-BY Text Project deliverable article-journal ScholarlyArticle 2019 ftdatacite https://doi.org/10.5281/zenodo.3548734 https://doi.org/10.5281/zenodo.3548344 https://doi.org/10.5281/zenodo.3548735 2021-11-05T12:55:41Z Larval behaviours are predicted to impact their long-term spreading, with wider spreading being everywhere associated with more time spent higher in the water column. The strength of this enhanced dispersal varies regionally (from strong to very strong). Dispersal pathways are predicted to be affected by larval behaviour in ways which could influence the distribution of species. For deep-sea populations, the uncertainty in modelled dispersal and connectivity associated with vertical larval positioning in the water column is potentially an order of magnitude larger than that associated with pelagic larval duration or model hydrodynamics. The knowledge gaps in larval behaviour which contribute most to the uncertainty concern settling – the age at which larvae start to sink, and the sinking rate. In the absence of detailed knowledge of larval development, time-series observations of larval position in the water column could be used to constrain models, hugely reducing uncertainty in predictions. Under the most dispersive behaviour modelled, populations throughout the North Atlantic would be connected. Seamount populations may be crucial stepping stones in this wider connectivity. In the more dispersive scenarios two large-scale closed connectivity loops were identified, one anticlockwise around the North Atlantic basin with west-east return via the Azores, the second smaller loop following the sub-polar gyre. Even for the least dispersive behaviour modelled, populations along the continental slope may be connected anticlockwise around the North Atlantic, depending on the detailed habitat distribution. These conclusions are based on a large, systematic Lagrangian modelling experiment, tracking about 10 million virtual particles over 50 years in contrasting dynamical regimes around the North Atlantic Ocean. : 10.5281/zenodo.3548344 Text North Atlantic Stepping Stones DataCite Metadata Store (German National Library of Science and Technology) Stepping Stones ENVELOPE(-63.992,-63.992,-64.786,-64.786) |
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DataCite Metadata Store (German National Library of Science and Technology) |
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description |
Larval behaviours are predicted to impact their long-term spreading, with wider spreading being everywhere associated with more time spent higher in the water column. The strength of this enhanced dispersal varies regionally (from strong to very strong). Dispersal pathways are predicted to be affected by larval behaviour in ways which could influence the distribution of species. For deep-sea populations, the uncertainty in modelled dispersal and connectivity associated with vertical larval positioning in the water column is potentially an order of magnitude larger than that associated with pelagic larval duration or model hydrodynamics. The knowledge gaps in larval behaviour which contribute most to the uncertainty concern settling – the age at which larvae start to sink, and the sinking rate. In the absence of detailed knowledge of larval development, time-series observations of larval position in the water column could be used to constrain models, hugely reducing uncertainty in predictions. Under the most dispersive behaviour modelled, populations throughout the North Atlantic would be connected. Seamount populations may be crucial stepping stones in this wider connectivity. In the more dispersive scenarios two large-scale closed connectivity loops were identified, one anticlockwise around the North Atlantic basin with west-east return via the Azores, the second smaller loop following the sub-polar gyre. Even for the least dispersive behaviour modelled, populations along the continental slope may be connected anticlockwise around the North Atlantic, depending on the detailed habitat distribution. These conclusions are based on a large, systematic Lagrangian modelling experiment, tracking about 10 million virtual particles over 50 years in contrasting dynamical regimes around the North Atlantic Ocean. : 10.5281/zenodo.3548344 |
format |
Text |
author |
Fox, Alan Gary, Stefan Biastoch, Arne Roberts, J Murray |
spellingShingle |
Fox, Alan Gary, Stefan Biastoch, Arne Roberts, J Murray ATLAS Deliverable 1.6: Biologically realistic Lagrangian dispersal and connectivity |
author_facet |
Fox, Alan Gary, Stefan Biastoch, Arne Roberts, J Murray |
author_sort |
Fox, Alan |
title |
ATLAS Deliverable 1.6: Biologically realistic Lagrangian dispersal and connectivity |
title_short |
ATLAS Deliverable 1.6: Biologically realistic Lagrangian dispersal and connectivity |
title_full |
ATLAS Deliverable 1.6: Biologically realistic Lagrangian dispersal and connectivity |
title_fullStr |
ATLAS Deliverable 1.6: Biologically realistic Lagrangian dispersal and connectivity |
title_full_unstemmed |
ATLAS Deliverable 1.6: Biologically realistic Lagrangian dispersal and connectivity |
title_sort |
atlas deliverable 1.6: biologically realistic lagrangian dispersal and connectivity |
publisher |
Zenodo |
publishDate |
2019 |
url |
https://dx.doi.org/10.5281/zenodo.3548734 https://zenodo.org/record/3548734 |
long_lat |
ENVELOPE(-63.992,-63.992,-64.786,-64.786) |
geographic |
Stepping Stones |
geographic_facet |
Stepping Stones |
genre |
North Atlantic Stepping Stones |
genre_facet |
North Atlantic Stepping Stones |
op_relation |
https://zenodo.org/communities/atlas https://dx.doi.org/10.5281/zenodo.3548344 https://dx.doi.org/10.5281/zenodo.3548735 https://zenodo.org/communities/atlas |
op_rights |
Open Access Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5281/zenodo.3548734 https://doi.org/10.5281/zenodo.3548344 https://doi.org/10.5281/zenodo.3548735 |
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1766121072951820288 |