Project deliverable Open Access

ATLAS Deliverable 1.6: Biologically realistic Lagrangian dispersal and connectivity

Fox, Alan; Gary, Stefan; Biastoch, Arne; Roberts, J Murray


JSON-LD (schema.org) Export

{
  "description": "<p>Larval behaviours are predicted to impact their long-term spreading, with<br>\nwider spreading being everywhere associated with more time spent higher in<br>\nthe water column.<br>\nThe strength of this enhanced dispersal varies regionally (from strong to very<br>\nstrong).<br>\nDispersal pathways are predicted to be affected by larval behaviour in ways<br>\nwhich could influence the distribution of species.<br>\nFor deep-sea populations, the uncertainty in modelled dispersal and connectivity<br>\nassociated with vertical larval positioning in the water column is potentially<br>\nan order of magnitude larger than that associated with pelagic larval duration<br>\nor model hydrodynamics.<br>\nThe knowledge gaps in larval behaviour which contribute most to the uncertainty<br>\nconcern settling &ndash; the age at which larvae start to sink, and the sinking<br>\nrate.<br>\nIn the absence of detailed knowledge of larval development, time-series observations<br>\nof larval position in the water column could be used to constrain<br>\nmodels, hugely reducing uncertainty in predictions.<br>\nUnder the most dispersive behaviour modelled, populations throughout the<br>\nNorth Atlantic would be connected. Seamount populations may be crucial<br>\nstepping stones in this wider connectivity.<br>\nIn the more dispersive scenarios two large-scale closed connectivity loops were<br>\nidentified, one anticlockwise around the North Atlantic basin with west-east<br>\nreturn via the Azores, the second smaller loop following the sub-polar gyre.<br>\nEven for the least dispersive behaviour modelled, populations along the continental<br>\nslope may be connected anticlockwise around the North Atlantic, depending on the detailed habitat distribution.<br>\nThese conclusions are based on a large, systematic Lagrangian modelling experiment,<br>\ntracking about 10 million virtual particles over 50 years in contrasting<br>\ndynamical regimes around the North Atlantic Ocean.</p>", 
  "license": "https://creativecommons.org/licenses/by/4.0/legalcode", 
  "creator": [
    {
      "affiliation": "University of Edinburgh", 
      "@id": "https://orcid.org/0000-0002-9047-1986", 
      "@type": "Person", 
      "name": "Fox, Alan"
    }, 
    {
      "affiliation": "Scottish Association of Marine Science", 
      "@type": "Person", 
      "name": "Gary, Stefan"
    }, 
    {
      "affiliation": "GEOMAR", 
      "@type": "Person", 
      "name": "Biastoch, Arne"
    }, 
    {
      "affiliation": "University of Edinburgh", 
      "@type": "Person", 
      "name": "Roberts, J Murray"
    }
  ], 
  "url": "https://zenodo.org/record/3548735", 
  "datePublished": "2019-11-20", 
  "@context": "https://schema.org/", 
  "identifier": "https://doi.org/10.5281/zenodo.3548735", 
  "@id": "https://doi.org/10.5281/zenodo.3548735", 
  "@type": "CreativeWork", 
  "name": "ATLAS Deliverable 1.6: Biologically realistic Lagrangian dispersal and connectivity"
}
88
44
views
downloads
All versions This version
Views 8888
Downloads 4444
Data volume 228.4 MB228.4 MB
Unique views 8383
Unique downloads 4242

Share

Cite as