On a recent swim, I saw this shoal of fish, mostly comprising of Whitebar Surgeonfishes, heading off on its morning business.
The morning commute
Tag Archives: Surgeonfish
Spotted Eagle Ray on the move
I don’t see Spotted Eagle Rays as often as I used to, but that’s true of many creatures that live in the ocean around here. This one went skimming by a small school of Yellow Tangs and out into deeper water. Happily, it looked in excellent condition with a beautiful array of white spots on its wings.
Yellow Tangs
Yellow Tangs are about the most easily identified reef fish. They’re easily spotted from shore, puttering about in the shallows in large schools. In the water, their bright yellow color stands out even in murky water.
These fish are almost entirely yellow except for the white scalpel at the base of the tail. One or the other of these sharp spines can be flicked out and can inflict a serious cut on the unwary. When they spar with each other, they go round in circles trying to keep the exposed scalpel of the other fish away from them while trying to maneuver their own into a dangerous position.
Yellow tangs are a prime target of the aquarium fish industry. They don’t breed in captivity so every yellow tang in an aquarium is one taken from the wild. While these fish can been found around the Pacific, Hawaii is where they are most numerous and where most of these yellow tangs are taken. There have been a few bans on the trade in some places, affording some respite from the steady decline in numbers. Alas, our elected representatives have yet to exhibit enough backbone to impose a ban that is permanent and significant enough to allow fish stocks to truly rebound.
Undulated Moray Eel
I saw this Undulated Moray Eel out in the open recently and, rather than dart for shelter, it remained where it was opening and closing its jaws. While this looks threatening, it’s typical of most eels, the purpose being to push water over its gills, the equivalent of breathing. However, that’s not to say it’s a good idea to dive down and interact with the eel.
My fish book describes the Undulated Moray Eel as “one of the nastiest.” Its narrow jaws hold three rows of teeth, one running down the middle of its mouth. It’s usual prey includes small fish, but this eel was accompanied by a changing group of fish, and neither seemed too bothered about the other.
In Hawaii, this eel is often called the chainlink eel, for obvious reasons.
Yellow fish in blue water
Yellow Tangs nibble on coral heads on the steep slope down to deep water at Two Step, a popular snorkeling spot in South Kona.
Convict Tangs and a Surge Wrasse
I was photographing this school of Convict Tangs when I saw this initial phase Surge Wrasse swimming in the opposite direction. This is not a fish I see too often and it’s one which my fish book describes as ‘one of the most difficult Hawaiian fish to photograph.’ I think this is because of its scarcity and it’s tendency to spend a lot of its time close to shore in shallow, surging water.
Whitebar Surgeonfish
Schools of Whitebar Surgeonfishes are fairly common where I snorkel most. They cruise around rocky areas, feeding on algae. Often they can be seen with other reef fish such as Convict Tangs or Whitespotted Surgeonfish, seen in the background of the lower photo.
Convict Tangs
The aptly named Convict Tangs are distinguished by six vertical black bars against a yellow-green background. One of these bars crosses the eyes, a feature common in many fish, which is thought to help confuse possible predators.
Convict Tangs are usually seen in large schools, again a tactic to deter predators.
Graham's Island 