Hawaii's isolation in the Pacific has created unique marine ecosystems with many endemic species. While fish populations overlap between islands, each island group has its characteristic catches and local favorites.
Known for deep-sea fishing, the Big Island offers Uhu (parrotfish), Aholehole (Hawaiian mullet), Moi (threadfin), Papio (longnose emperor), Akule (bigeye scad), Oio (bonefish), plus pelagic species like Mahimahi (dolphinfish), Ono (wahoo), Ahi (yellowfin tuna), Marlin, Spearfish, and Swordfish.
Maui's waters feature Aku (skipjack tuna), Kawakawa (mackerel scad), Ulua (giant trevally), Ta'ape (barracuda), Kahala (amberjack), Onaga (ruby snapper), Ehu (striped surgeonfish), and the iconic Humuhumunukunukuapua'a (rectangle triggerfish)—Hawaii's state fish. Reef species include Kala (spotted goatfish), Manini (convict tang), Kole (blue damselfish), Laulau (yellowstripe goatfish), and A'u (spiny lobster).
Molokai offers Mahi (dolphin fish), various goatfish (Kumu, Kala, Moana), Malolo (squirrelfish), Hapu'upu'u (grouper), Keauhou (yellow-edged lyretail), Pualu (halfmoon butterflyfish), Kihikihi (brown surgeonfish), Palu (bluespine unicornfish), Ulua, 'Omilu (black triggerfish), Kala 'Eha (flagtail unicornfish), and Puhi Puhi (spotted moray eel).
Oahu shares many species with Maui, while Kauai adds Moano (white goatfish), Weke 'Ula (red-tailed moi), Maiko (blueline snapper), and Hapu'u (whitetip reef shark) to the mix.
Many Hawaiian fish names reflect the islands' Polynesian heritage, and sustainable fishing practices remain important for preserving these resources.