is it commonly affected by any poisonous substance?
They accumulate high levels of ciguatoxins and hence are not recommended for human consumption
Moray eel
Moray eels, particularly the giant moray ("Gymnothorax javanicus") and yellow-edged moray ("G. flavimarginatus"), are known to accumulate high levels of ciguatoxins, unlike other reef fish. Ciguatera poisoning is characterised by neurological, gastrointestinal, and cardiovascular problems. In morays, the toxins are most concentrated in the liver. In an especially remarkable instance, 57 people in the Northern Mariana Islands were poisoned after eating just the head and half of a cooked "G. flavimarginatus". Thus, morays are not recommended for human consumption.
what is taapaca? Holocene volcanic complex what is the origin of its name? The term "tara paka" is Aymara for "two-headed eagle" or "winter (prey) bird" where is it found? Northern Chile's Arica y Parinacota Region was the above-mentioned country ever colonized? Yes. By Spain does it have any disputes regarding borders? Yes. With Peru and Argentina what are the major flora in this country? Several species of cacti, the hardy espinos, the Chilean pine, the southern beeches and the copihue historically, the monarchy of the colonizing country above belonged to which  religion? Catholic what are the islands close to this country? Canary Islands are there any popular parks on these islands? Yes. Teide National Park describe the weather of this place briefly? Subtropical and desertic are there any plants here that date back to prehistoric times? UNANSWERABLE what are the sea creatures found there? Many species of shark, ray, moray eel what does the third species feed on? Smaller fish, octopuses, squid, cuttlefish and crustaceans
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Moray eel [SEP] Ciguatera poisoning
Moray eels, particularly the giant moray ("Gymnothorax javanicus") and yellow-edged moray ("G. flavimarginatus"), are known to accumulate high levels of ciguatoxins, unlike other reef fish. Ciguatera poisoning is characterised by neurological, gastrointestinal, and cardiovascular problems. In morays, the toxins are most concentrated in the liver. In an especially remarkable instance, 57 people in the Northern Mariana Islands were poisoned after eating just the head and half of a cooked "G. flavimarginatus". Thus, morays are not recommended for human consumption.