Richard Mack

WSU ecologist encouraging nat’l war on invading species

PULLMAN — Didemnum sea squirts don’t look scary. But the yellow blobs that are showing up on rocks and lobster traps in Puget Sound and the Hood Canal have biologists plenty worried.Native to Europe, the colonial creatures lack natural predators in North America. Unnoticed and unopposed, they can spread unchecked, eventually smothering shellfish beds and […]