Black triggerfish

Melichthys niger

The black triggerfish or black durgon , called ''Humuhumu'ele'ele'' in Hawaiian, is a blimp-shaped triggerfish with bright white lines running along its dorsal and anal fins. From a distance, it appears to be completely black. However, upon closer inspection with good lighting, one can see that it is actually mottled dark-blue/green coloration often with orange toward the front of the head. Black durgons are capable of changing color based on their surroundings.
Blackfin Triggerfish - Melichthys niger Black triggerfish,Blackfin Triggerfish,Cocos Island,Costa Rica,Fish,Geotagged,Melichthys niger,Spring,Triggerfish

Habitat

This species is found in open waters, shallows, and exposed reefs, 5–35 metres Seems to prefer inland/shores in the Ascension island region where they are strangely prolific.
Black Durgon Sep15, 2017. Seen in the dive site Sharon's Serenity in Bonaire. These triggerfishes are quite shy and they were mostly at the limit of the coral drop off and rather deep, 25m o more. interestingly in the link below is mentioned that they may feed on feces and vomits of cetaceans (..remarkable..). http://www.fishbase.org/summary/Melichthys-niger.html Black triggerfish,Caribbean Netherlands,Geotagged,Melichthys niger,Summer

Food

Omnivorous. Feeds upon small fish and squid. Shrimp, zooplankton, algae, and other marine plant life.

A study conducted in the Fernando de Noronha Archipelago of the southwest Atlantic Ocean, revealed the feces and vomit of Spinner dolphins formed part of the diet of twelve species of reef fish from seven different families. The most prolific consumer was the black durgon, which could even discern the postures dolphins assumed prior to voiding and positioned themselves for effective feeding. All these offal eating fish species are recorded plankton eaters and it is considered that this type of feeding may represent a change in its usual diet, i.e. drifting plankton.

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