Colors indicate the probability of invasion by ballast water exchange
of cargo ships. Lines show the shortest path
on water between two ports.
The method for link calculation and visualization was kindly provided by Dr. M. Gastner.
Colors indicate the probability of invasion by ballast water exchange
of cargo ships. Lines show the shortest path
on water between two ports.
The method for link calculation and visualization was kindly provided by Dr. M. Gastner.