some nice conger caught every year mainly from the deep water marks around craster, a 20lb plus fish was caught at cresswell in a blyth match a few seasons back. most of the fish seem to be taken when fishing for other species.
very few if any are taken by the boats, but this is due to most boats on this coast fishing on the drift. if they anchored up over wrecks in slack water then im sure they would turn up fishing hard on the bottom.
like alot if species, ie dogfish,mullet,rays. im sure if you can target them then im sure yourly be pleasantly suprised.
check out the pictures on the alan charlton pages and good luck.