The jetties coming out into the river, and a host of ships in the Middle Ages, little wooden ships ferrying produce across from the Continent and back. (Source)
The structure of the whole sentence is quite confusing to me: how can I understand it?
I looked it up here. I would have picked the fourth meaning,
if you produce an object, you bring it out or present it, so that people can see or consider it
When challenged, he produced a gun.
But produce is not transitive in my example.