FP under the rules of the road you are the give way vessel the vessel with the gillnet has the right of way and you as the giveway must stay well clear of the gear that is deployed or that is being deployed. Its the same under Inland rules and International col. regs.
A vessel engaged in trolling (not trawling) is not under the rules of the road considered to be impeded in its ability to manuver and gets no special consideration for passing