Los Angeles eats seafood on two tracks: Japanese precision (sushi, sashimi, izakaya) and California coast plates (yellowtail, halibut, oysters, ceviche). This guide is what to order — not a padded list of every steakhouse with salmon.
Two menus, two clocks
A sushi counter and a California grill do not share a clock. Nigiri wants the fish that landed this morning and a chef who will say when the belly is tired. A grill wants a named local fish, a simple sauce, and a kitchen that is not hiding last week's halibut under mango salsa.
Yellowtail. On a sushi menu this is usually hamachi, often farmed. On a California menu "local yellowtail" or "amberjack" is a different fish, firmer, better grilled or crudo. Ask which one is on the plate before you order a second piece.
Halibut. The worthwhile season runs late spring into early autumn. If the menu only says "market fish," ask the species. A room that cannot name it is selling a generic white fillet.
Oysters. West Coast cups (Kumamoto, Kusshi, and their neighbours) are small and briny. Order them by the name of the farm, not as a "chef's dozen" with no origin. Six from one farm tells you more than a mixed tower.
Ceviche. Citrus should smell sharp, not sweet. If the fish has already gone opaque and chalky in the fridge, send it back. The marinade is not a cover for yesterday's trim.
Book the format you actually want. A loud izakaya is the wrong room for a quiet omakase, and an ocean-view steakhouse is the wrong room for a halibut special. Start from the Los Angeles directory, filter by neighbourhood, and read hours before you cross town at 9pm.