Hyphens: 'big fish processing plant'

Just a quick one today as I've been on a CS3 training course all afternoon.

Here's a phrase from recent raw copy that could have benefited from a hyphen:

big fish processing plant

Is that a big plant that processes fish, or a plant that processes big fish? The former, I would assume...

Hyphens: strong staff

A news story by one of our writers today highlighted the perils of omitting hyphens. It contained this phrase:

The majority of the 200 strong staff

Obviously the company only employs muscular people! I inserted the missing hyphen, giving:

The majority of the 200-strong staff

But then I decided to keep it simple:

Most of the 200 employees