"anchor by" is correct and usable in written English.
It is used to mean "anchor at" or "anchor near". For example: "We anchored by the beach to have a picnic."
Signal peptide containing proteins that were predicted to have a GPI anchor by FragAnchor were further classified as GPI-anchored proteins.
David acted as an anchor by holding onto the harness.
In 1997, Lunden, who had been with the show for seventeen years, was replaced as anchor by Lisa McRee.
Most modern branchiopods anchor by the pedicle to pebbles, to the undersides of stones, or to other hard objects.
In another prank he humiliates the rival who beat him out for the job of news anchor by making him babble tongue-twisting nonsense over the air.
David Roberts, head of colleague engagement, Anchor: "By showing a clear career path into entry-level management roles, recognising the importance of good management.
Mr. Smith was named co-anchor with Frank Reynolds; later, Mr. Reynolds was succeeded as co-anchor by Harry Reasoner.
"A cheeky attitude anchored by deep purpose".
It anchors by the harbour seals.
"Rundown," WRNN's evening newscast is anchored by Mr. Smith.
But UConn, anchored by center Hasheem Thabeet, was not Memphis.
