DOI: 10.14466/CefasDataHub.88

Connectivity matrices for seven benthic species


These are connectivity matrices calculated from the results of Lagrangian models (GITM forced with GETM) for the period 2001-2010 and for seven benthic species: Alcyonium digitatum, Echinus esculentus, Lophelia pertusa, Metridium senile var. dianthus, Porifera, Mythilus edulis and Crepidula fornicata. The paper describing the calculation of these matrices and the analysis can be found in: The data were produced by analysing the results of the Lagrangian model GITM. The connectivity was calculated between the sectors described in Each connectivity matrix has a first row and a first column with numbers that represent the polygons from where the particles are released and the polygons to where they arrive. They are exactly the same. The numbers are the polygon number in a 15 x 15km grid, written as a list of polygons which is included in a file called grid15x15kmdef.txt. This provides the geografical location of the polygons. For each species we provide: 

  • Two connectivity matrices per year: one of them has "percen" in the name and the other hasen't. The matrix that does not have the percen in the name represents the number of connections between the 2 cells. They were calculated in a way that, as long as the particle starts to settle, we register as possible settling sites all the structures in its trace (it is not the final settling structure). The matrix that has the percen in the name is a kind of percentage connectivity matrix with respect to all the times settling is possible. 
  • A connectivity matrix that combines the information for all the years (2001-2010)


Van Der Molen, Johan / Garcia, Luz / Tidbury, Hannah / Hyder, Kieran


Modelling / Model / Offshore Oil & Gas / Benthos / Lagrangian currents and transport rates in the winter column

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(2019). Connectivity matrices for seven benthic species. Cefas, UK. V1. doi: