Figure 1.

Marine mammal haulout sites where Pacific harbor seal serum samples were collected. Seals were grouped based on genetics into two stocks: the Washington/British Columbia (WA/BC) inland water stock and the Washington/Oregon (WA/OR) outer coast stock. The WA/BC inland stock was sampled at San Juan/Gulf Islands (+), and South Puget Sound (■). The WA/OR outer coast stock was sampled at the Oregon outer coast (▲) and the Washington outer coast (●). The number of positive samples/number of samples tested for each location was San Juan/Gulf Islands (13/55), South Puget Sound (23/60), Oregon outer coast (12/50), and Washington outer coast (25/50).