Benthic varieties include the marine jewfish, croakers, grunters, snappers, groupers, ribbonfish and pomfrets. Its rich biodiversity reserves also include sea cucumbers, molluscs, crustaceans, herrings, groupers, and snappers. Surveys have recorded conger eels, sharks, groupers and hake. Other piscivorous fish such as groupers and snappers also eat "H. plumieri". This is found amongst coral reef fishes such as groupers, parrotfishes and wrasses. Unlike groupers or snappers, grunts have a strong fixed lower jawbone. Larger fish like groupers, seabasses or croakers inhabit along the coasts. The activity allows grey reef sharks to snatch a few distracted groupers. Many groupers are important food fish, and some of them are now farmed. Pseudorhabdosynochus americanus is a diplectanid monogenean parasitic on the gills of groupers. Species such as groupers and rabbitfishes travel long distances to congregate for days or weeks. The groupers ("hapuu") are most often steamed. Gilroy's influence in Rome helped to end official Church support for the Groupers. Most are better known as groupers, and belong to the family Serranidae. His followers, known as Groupers, continued to control a number of important unions.