The Crosshatch Triggerfish, also known as the Blue Cheekline Triggerfish, has a very interesting pattern to its coloration. It is hard to give a general discription of Triggerfish, as they vary much in behaviour, not just between species, but also from specimen to specimen. This species will nip at corals and eat reef invertebrates (even sea urchins). The humuhumunukunukuāpua‘a, or reef triggerfish (Rhinecanthus rectangulus), is one of the most widely recognized of Hawaiian fishes. The humuhumunukunukuapua'a isn't the only triggerfish in the sea. While you are snorkeling, you will see them moving alone or in small groups around the reef. It makes a very interesting crunching sound. In May of 2006 Governor Linda Lingle signed a bill that permanently established the humuhumunukunukuāpua‘a as the State Fish of Hawai‘i. When threatened, a triggerfish dives into a hole or crevice in the reef, then wedges itself into the shelter by erecting the large dorsal spine on its head. Black Triggerfish are one of the least aggressive of the triggerfish but they are, nevertheless, a poor choice for reef tanks. I used to think that I’d never be able to pronounce humuhumunukunukuapua’a, but it’s actually quite easy after you sound it out a time or two. It swims close to the bottom, searching for potential food items.  They are the state fish of Hawaii. The Hawaii Volcanoes National Park used to be a part of Hawaii National Park, which was established all the way back in 1916. Kuwamura, T. 1997. I just looked at John P. Hoover's popular Hawaii's Fishes : A Guide for Snorkelers, Divers, and Aquarists at the book store, and on p. 137 it lists "Picasso triggerfish" as an alternate name for the "Reef triggerfish", and the Lagoon triggerfish is the aculeatus. The broom-like tail provides thrust for a quick dash into the protection of the reef. 22. Ethology 103: 1015-1023. Fun Facts: - The reef triggerfish was originally designated the official fish of Hawaii in 1985. The latter 4 species, as well as Odonus niger have the distinction of being generally safe in reef settings, with the caveat that small shrimp should be added before the Triggerfish, and the Triggers themselves should generally be added last, and be the smallest fish in the tank. One interesting fact, this wedge tailed trigger fish is called humuhumu for short, in Hawaii, which means “triggerfish with a snout like a pig”. Ecology: The blackbelly triggerfish is frequently found in lagoons and shallow waters of reef flats among macroalgae, rubble and coral among seagrasses (Lieske and Myers 1994; Bean et al. Size: 8 to 10 in. On April 17, 2006, bill HB1982 was presented to the Governor of Hawaiʻi, which permanently reinstated the reef triggerfish (humuhumunukunukuāpuaʻa) as the state fish of Hawaii. Here is a reef triggerfish swimming casually through the sea. The colors include blue, yellow, white, black, and gray. It is a little known fact but the Hawaiian triggerfish is not on the endangered species list, unlike the Hawaiian monk seal and the nene goose. Myers, R. F. 1999. Image: REEF or PICASSO TRIGGERFISH – Rhinecanthus rectangulus. (20 to 25 cm) Depth: 3-30 ft. (1-10 m) Distribution: Indo-Pacific, Hawaii, Red Sea. The reef trigger shares its long Hawaiian name with a close, but less common relative, the lagoon triggerfish (Rhinecanthus aculeatus). The Blue Triggerfish, also called the Niger Triggerfish can grow to just under 20," requiring a 180 gallon tank. Bridled Triggerfish. Triggerfishes. Gilded Triggerfish (Male) Gilded Triggerfish (Female) Black Durgon. It feeds on algae and reef invertebrates, including small crustaceans, worms, brittlestars, sea urchins, and snails. The State Fish’s official term of office lasted five years, and there was no re-election campaign.
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