It is possible to have that. Hecate Strait is one example where in the vertical adaptive management zone—that is the area between the top of the reefs and the surface of the water—some midwater trawling is allowed, or long-lining, safe in the knowledge it is not going to reach a depth that is going to affect the sponge reefs, but the activity can still take place.
On April 4th, 2017. See this statement in context.