This particular specimen was black with small white spots and had a bluish tinted belly. The Hawaiian grouper has a body which has a standard length that is 2.3 to 2.7 times its depth.
It has an angular properly which has 3-4 enlarged serrations at its angle, with the lowest pointing downwards. The upper margin of the gill cover is convex.
The dorsal fin contains 11 spines and 14-15 soft rays while the anal fin has 3 spines and 9 soft rays. The membranes between the dorsal fin spines are deeply notched.
The adults are dark brown in overall color and are marked with 8 vertical series of faint white spots which are obscured by many extra pale spots and blotches which vary in size. The fins of adults are largely plain and have a similar color to the body apart from a few pale spots along the base part of the dorsal fin.
The Hawaiian grouper is a reversal species which is found on coral and rocky reefs at depths between 20 and 380 meters (66 and 1,247 ft). The spawning season runs from February to June, peaking in March.
The Hawaiian grouper is valued for having clear white flesh which has a delicate flavor. It is regarded as a member of the “Deep 7” group of fish species which live in deep water, near the bottom, and are a valuable resource for fisheries in Hawaii, these species accounting for 50% of the total commercial catch in the State.
Groupers of the world (family Serranidae, subfamily Epinephrine). An annotated and illustrated catalog of the grouper, rock cod, hind, coral grouper and lyre tail species known to date (PDF).
Groupers have large mouths, heavy bodies (they can grow to an enormous size), protruding lower jaw and are usually solitary bottom-dwellers. They are also called sea basses and can be found in shallow waters as well as depths of many hundreds of feet.
This sucks water into their mouths as well as their food, which can be anything from stingrays, lobsters, small fish and even sea turtles. The Giant Grouper has such a large mouth and body that a human could fit into it.
This fish is an attack predator with a number of hunting techniques: lying to wait in coral, swimming in mid water, following other predators like eels and octopus and catching their prey if originally missed, and hiding within schools of fish and darting out at unsuspecting prey. Habitat: C. Argus can be found on shallow exposed reefs in warm tropical waters.
It is a protogynous hermaphrodite, meaning it begins life as a female and changes to a male as it matures. It is treatable in humans, but the concern is that ciguatoxin can move up the food chain via bio amplification and spread to other species.
Chef Chris Sherrill: “In case you don’t know, they love their SPAM in Hawaii, and so we are going to do a really cool potato dish with that, but what the keynote is, is this beautiful grouper, right here from the Gulf of Mexico. We are going to crust right in some Hawaiian macadamia nuts.
All we did was grind macadamia nuts with a little pinko bread crumbs. This macadamia oil has got a high cooking temperature, and we are going to sauté this grouper right in that. So you don’t want a lot of burns on that.
We only did this for about 10 to 15 seconds on each side, and we are going to finish this in the oven. So we are going to throw this in a very hot oven and finish it out and in the meantime, we are going to finish up the rest of our other dish.
And over there they use a lot of Maui sweet onions, but we are going to use what we call the green onion whites here. And we’ve cooked off some Yukon Gold potatoes, which we are going to add to that SPAM. We are going to run a line of that sauce down this neat wooden board here and since we’ve got a little of an Asian flare here, we are going to add a little housing in some different spots to this just to give it some extra Hawaiian feel.
So we’ve got Macadamia nut crusted fresh Gulf grouper with a little Poke sauce, wilted squash and zucchini, grilled Romaine and SPAM potatoes for our inspiration from Hawaii.” Remember, for private anglers, Saturday and Sunday you can fish for snapper.
A 16-year-old girl who went deep-sea fishing recently for only her second time, reeled up an estimated 583-pound Goliath grouper, which dwarfs the women’s world record for the species. “I was, like, in shock pretty much,” Reagan Werner told the Trinities Pioneer Press on Saturday.
Werner, who is from Farmington, Minn., was fishing May 31 near Marco Island off Florida with her brother, mother, and stepfather. “These things have amazing power,” Paul Hartman, Werner’s stepfather, told the Pioneer Press.
According to the International Game Fish Assn., the heaviest Goliath grouper caught by a woman weighed 366 pounds. Thanks to the longstanding harvesting ban, the population is growing and larger fish are again being encountered by scuba divers and catch-and-release anglers.
Groupers are able to change skin colors to blend into their natural habitat, and the hap`UPU`u is no exception. Most hap`UPU`u seen in the market are black, but fish captured in certain locations may be brownish or reddish.
Hawaii Sea Bass, also known as hapuupuu is an excellent source of healthy, extra lean protein. Hawaii Sea Bass also provides about 250 mg of omega-3’s (DHA and EPA) per 4 ounce serving of fresh fish.
This fish was imported to Hawaii in the 1950s from French Polynesia and since then has spread to almost all the Hawaiian coral reefs. Where it occurs naturally in Tahiti it sells for up to $8 a pound and is a prize dish in the local restaurants.
Even though this 20-inch long fish is now very common in Hawaiian waters and easy to catch it is not often eaten by the local community. Then the ROI just gulps it down with its large mouth and series of hundreds of small bristle like teeth.
I often eat invasive reef fish because that helps the entire coral reef ecosystem but I simply eat a small dime size piece of the fish after I catch it. If it contains ciguatera you would have some kind of mild stomach reaction within three to five hours according to the finding from the UH study.
Catching the ROI for food is a good sustainable food source that helps our coral reefs and maybe we can lower the populations to help our native fish species, but each person who chooses to eat them really needs to be cautious and not eat a large portion of the fish right way until you know it is safe. The ROI are extremely beautiful fish to look at, and they may or may not have white bands on their blue and brown smooth skin.
You can see the ROI in action in my video The Worlds Guide to Hawaiian Reef Fish up on my underwater educational web page at www.underwater2web.com and also follow my marine life identification series on my Instagram at terry.Villa. Grouper is noted for its clear white flesh and is delicate taste.