Hello and thank you for your report! Unfortunately a positive ID couldn't be made with this photo alone as it's hard to make out the details of the organism. However, it's likely this could be a native sponge, https://www.inaturalist.org/taxa/117714-Ophlitaspongia-pennata, which can be bright orange or red like this specimen, and has been reported from Cape Perpetua.

One thing to look for with ID of colonial tunicates is the pattern of siphons, it makes the surface look somewhat bubbly, and the surface of the colony is covered by a jelly-like substance. Here is a good pdf with photos and descriptions: http://www.nonnativespecies.org/downloadDocument.cfm?id=351

Thanks again for your report and for keeping your eyes open for invasive species!

-Lindsey

Lindsey Wise
Feb. 7, 2018, 3:09 a.m.

Here is another resource from Oregon Sea Grant that covers a variety of invasive tunicates: http://seagrant.oregonstate.edu/sgpubs/invasive-tunicates-pacific-northwest

There are links to a PDF guide and booklet at the bottom of the page.

-Lindsey

Lindsey Wise
Feb. 7, 2018, 3:13 a.m.