For the fish, you want to use a flakey white fish like rock fish or sea bass. I'm using Loup de Mer which is the French name for Branzino. Start by inserting the tip of your knife into the vent by the pelvic fin. Move your knife up the belly of the fish towards the head, then use your hands to remove the entrails. Run your knife along the spine of the fish to break the air blatter, then rub your finger down the spine under running water to remove all the blood. To prevent scales from flying everywhere, I like to use a Japanese technique known as sukibiki. Using a sharp knife, cut in between the skin and the scales cutting towards the head. Once I have done this to the whole fish, I like to run my knife over the fish to make sure that I removed all the scales.
To filet, cut in between the gill plate and the body at an angle on both sides, then pull the head back to remove. To get the most meat off the fish, use the heel of the knife oCut the rib bones, and with the back of the knife resting on the spine of the fish. Flip the filet over and remove the rib cage and belly, then use fish tweezers to remove the pin bones. Following the same angle as the head, cut the filets in half on a bias, then trim the filets so that they all have clean cuts. Use the heel of the knife to split the head in half, then push on the eyes to remove both the eyes and the brain of the fish, then give them a rinse in cold water which will stock a cleaner fish flavor. Store the filets, trim and bones off to the side.
To clean the clams, purge them in cold salt water for 30 minutes to remove all the sand. This isn't necessary for the mussels, but right before you cook the mussels, i like to remove the beard. Right before you cook them, check any open ones by holding them shut for 5 seconds. They will open to breathe, if they never close, they are dead and should be tossed. Measure out 4 oz water, 1 oz white wine, 2 strips of lemon peel, 3 sprigs of thyme, 1 bay leaf and 1 garlic clove smashed. Heat a wide pan with a lid over high heat. Once it starts to smoke, add the clams and mussels followed by the cooking liquid. Cover the pan quickly to steam them. As soon as they open, individually remove them from the pan and continue cooking until they are all open. Use a spoon to remove from the shell. For the clams, be sure to remove the abductor muscle, frill then cut the bottom and squeeze out the food from the stomach. For the mussels, make sure the abductor muscle is removed and siphon with any remaining beard. Save the clams, mussels and cooking liquid off to the side.
For the shrimp, run your finger along the feet from the tail towards the head. Remove the shell right above the tail which will cause the rest of the shell to come right off. Break the shell then pull on the tail to remove. Using scissors, cut the tail which will allow you to easily pull out the vein with tweezers. Insert a skewer into the shrimp for an elegant presentation.
Remove the abductor muscle from the side of the scallop. Scallops have a small side and a large side that slopes down. One thing we always did at The Modern is place the scallops large side up with the slops all facing the same way.