Most of my fishing in the 60’s and 70’s was out of Pt Defiance.
They obviously sold herring, but I don’t recall them selling live sandlance.
Maybe they did and I wasn’t paying attention.
I don’t know if commercial over harvest is an issue at least here in Washington. Is there even commercial fishing for sandlancde here any longer?
I think a bigger issue with them is the armoring of shorelines that cuts off new sand recruitment to eel grass beds.
That said, I see a lot of sandlance every year in the summer and fall while beach fishing for coho and cutts.

On a positive note, in the last five years I’ve seen more anchovies in the south sound and canal then I’ve ever seen.
Huge schools of them stretching over long sections of beach.
SF