Bring 1/2-inch water to a simmer in a large nonstick skillet.
Zest a lemon and reserve. Cut lemon and season the fish the some lemon juice and salt and add to the simmering water.
Cover pan and cook fish 8 minutes.
Remove and flake fish into a bowl.
Discard water and wipe out pan, returning it to heat over medium flame and add 1/4 cup vegetable oil. To the fish, add reserved lemon zest, seafood seasoning, celery, onion, thyme, parsley, salt, and pepper to fish. Add egg and 1 cup of the bread crumbs. Form 8 fish patties and toss in remaining bread crumbs to set the patties.
Add 1/4 cup vegetable oil to the cleaned out pan and heat over medium flame.
Cook patties in the oil for 4 to 5 minutes on each side until golden and reserve under foil or in warm oven.