Pearl grouper, also known as grouper, is a benthic fish, and its adult fish mainly inhabits coral reefs and near-shore rocky reefs, and some of them inhabit in the sea where the substrate is sandy, muddy or silty, and its juvenile fish prefers seagrass beds, mangroves and other habitats.

Grouper inhabit in the shallow waters of 100m, and some species inhabit in the water layer of 100~200m. Most of the grouper are solitary fishes, and they usually do not form groups except for clusters during the breeding season;

but there are also some species that live in small groups of one male and several females, such as the cross-banded nine-spined seabass and the green-starred nine-spined seabass. Grouper can often colonize specific reef areas for extended periods of time, and characteristics such as this sedentary habit and long life history make grouper vulnerable to overfishing.

Extended information:

Grouper are widely distributed in the tropical and subtropical waters of the Atlantic Ocean, Indian Ocean and Pacific Ocean. There are 11 genera and 65 species of grouper distributed along the coast of China, including the genera Light Palate Bass, Shimomi, Humpback Bass, Grouper, Nine-spined Bass, Side-toothed Bass, Gill Spined Bass and Poor Bass.

Mainly distributed in the East China Sea, Taiwan Strait and the South China Sea, of which the common species are slant banded grouper, leopard gill spiny perch, humpback perch, green grouper and so on. Taiwan Strait, especially the Penghu Island waters;

Not only is there the heating effect of the Kuroshio tributary, and there are many shoals, canyons, islands, reefs, coral reefs are rich in resources, which is very suitable for grouper habitat, and its grouper species are more abundant than the East China Sea and the South China Sea