Trawler catch is a scenery object located on the end of the pier near the Fishing trawler in Port Khazard. Searching the catch will result in the player getting a bubble of a Net over their head as well as the following rewards depending on the player's fishing level and how well their trawler trip went.
You can only get fish that correspond to your fishing level. You will get full XP for any fish you catch on the trawler. You get your XP not upon completion of the trip but as you take in your haul from the net. If your inventory is full, your items will be dropped on the ground.
Note: It is possible to catch any fish up to 3 levels higher than your fishing level by taking a sip of fishing potion before checking the nets.
Junk can be caught at any level. All of these items are considered useless items
Many of these items can only otherwise be found in strange barrels or digging at the Digsite