Fig 2. Sighting Frequency of D. imbricata, P. brevispinus, P. helianthoides, S. droebachiensis and M. franciscanus in 5 basins of the Salish Sea and the Outer Coast 2006–15.
Grey line marks the epidemic onset.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.