Dataset: Connectivity Matrix

Name: The connectivity matrix derived from the OysterFutures larval transport model simulations
Published: 2020-04-03
Keywords: oceans

Cite This Dataset

Spatial Extent: N:38.807864 E:-75.96064487 S:38.4876211 W:-76.323769

Project:

Coastal SEES Collaborative Research: Oyster fisheries in the Chesapeake Bay: Integrating stakeholder objectives with natural system models to promote sustainable policy (Chesapeake Bay Oyster Fisheries)

Principal Investigator:

Elizabeth North (University of Maryland Center for Environmental Science, UMCES/HPL)

BCO-DMO Data Manager:

Shannon Rauch (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Version:

Version Date:

2020-04-03

Restricted:

Validated:

Yes

Current State:

Final no updates expected

The connectivity matrix derived from the OysterFutures larval transport model simulations

Abstract:

This dataset includes the connectivity matrix derived from the OysterFutures larval transport model simulations.

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Description

This dataset contains estimates of the proportion of larvae that were transported between oyster habitat polygons in the Choptank and Little Choptank River and was derived from larval transport model simulations. This matrix was used to simulate the transport of progeny between the 1,132 habitat polygons in the in the OysterFutures simulation model.

Methods & Sampling

Connectivity matrix estimates were derived using the output of the open-source Lagrangian TRANSport model (LTRANS) which was implemented for oyster larvae in the Chotpank and Little Choptank Rivers in Maryland. Methods for implementation are described in Spires (2015).

The 'Connectivity' worksheet in this spreadsheet contains the connectivity matrix which was created with the comnined output of larval transport model simulations.
The first column contains the polygon ID numbers where particles were released (startpolygons).
The first row contains the polygon ID numbers where particles encountered suitable habitat ("settled") (endpolygons).
The elements of the matrix contain the proportion of particles that were released from each habitat polygon and encountered suitable habitat ("settled").

There are 1132 starting polygons and 1132 ending polygons. It is a SQUARE matrix because the endpolygons that were not also startpolygons were dropped from this table.
The last two columns contain the centriod locations (lat/lon) of the startpolygons.
The last two rows contain the centriod locations (lat/lon) of the endpolygons.

Definitions:
polygon ID numbers - the unique polygon identification number for each habitat polygon used in the larval transport model.
startpolygon - polygon that a particle was released from.
endpolygon - polygon that a particle was "settled on" (encountered) when in the pediveliger stage.

The code of LTRANS is available on the PI's website at https://northweb.hpl.umces.edu/LTRANS.htm and on GitHub at https://github.com/LTRANS/LTRANSv.2b.

Data Files

File

Connectivity matrix for OysterFutures model
filename: ConnectivityMatrix_4OF_final_3May17_4BCO-DMO.xlsx

(Microsoft Excel, 4.10 MB)
MD5:e41031fae2a744ed6023afc7ca774e2e

Created by Enorth using 2017 Chotpank larval transport (LTRANS) model runs

The 'Connectivity' worksheet in this spreadsheet contains the connectivity matrix which was created with the comnined output of larval transport model simulations. 

The first column contains the polygon ID numbers where particles were released (startpolygons).

The first row contains the polygon ID numbers where particles encountered suitable habitat ("settled") (endpolygons). 

The elements of the matrix contain the proportion of particles that were released from each habitat polygon and encountered suitable habitat ("settled").  

There are 1132 starting polygons and 1132 ending polygons. It is a SQUARE matrix because the endpolygons that were not also startpolygons were dropped from this table. 

The last two columns contain the centriod locations (lat/lon) of the startpolygons. 

The last two rows contain the centriod locations (lat/lon) of the endpolygons. 

Definitions

polygon ID numbers - the unique polygon identification number for each habitat polygon used in the larval transport model 

startpolygon - polygon that a particle was released from 

endpolygon - polygon that a particle was "settled on" (encountered) when in the pediveliger stage