Betweenness has been used in a number of marine studies to identify portions of sea that sustain the connectivity of whole marine networks. Herein we highlight the need of methodological exactness in the calculation of betweenness when graph theory is applied to marine connectivity studies based on transfer probabilities. We show the inconsistency in calculating betweeness directly from transfer probabilities and propose a new metric for the node-to-node distance that solves it. Our argumentation is illustrated by both simple theoretical examples and the analysis of a literature data set.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5726639 | PMC |
| http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0189021 | PLOS |
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