| Hoplostethus | |
|---|---|
 | |
| Mediterranean slimehead (H. mediterraneus) | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Trachichthyiformes |
| Family: | Trachichthyidae |
| Genus: | Hoplostethus G. Cuvier, 1829 |
| Species | |
30, see text | |
There are 30 species in this genus: [1]
The Beryciformes are a poorly-understood order of carnivorous ray-finned fishes consisting of 7 families, 30 genera, and 161 species. They feed on small fish and invertebrates. Beyond this, little is known about the biology of most member species because of their nocturnal habits and deepwater habitats. All beryciform species are marine and most live in tropical to temperate, deepwater environments. Most live on the continental shelf and continental slope, with some species being found as deep as 2,000 m (6,600 ft). Some species move closer to the surface at night, while others live entirely in shallow water and are nocturnal, hiding in rock crevices and caves during the day. Several species are mesopelagic and bathypelagic. Beryciformes' bodies are deep and mildly compressed, typically with large eyes that help them see in darker waters. Colors range from red to yellow and brown to black, and sizes range from 8–61 cm (3.1–24.0 in). Member genera include the alfonsinos, squirrelfishes, flashlight fishes, fangtooth fishes, spinyfins, pineconefishes, redfishes, roughies, and slimeheads. A number of member species are caught commercially, including the alfonsino, the splendid alfonsino, and the orange roughy, the latter being much more economically important. Some species have bioluminescent bacteria contained in pockets of skin or in light organs near the eyes, including the anomalopids and monocentrids.
The orange roughy, also known as the red roughy, slimehead and deep sea perch, is a relatively large deep-sea fish belonging to the slimehead family (Trachichthyidae). The UK Marine Conservation Society has categorized orange roughy as "vulnerable to exploitation". It is found in 3 to 9 °C, deep waters of the Western Pacific Ocean, eastern Atlantic Ocean, Indo-Pacific, and in the eastern Pacific off Chile. The orange roughy is notable for its extraordinary lifespan, attaining over 200 years. It is important to commercial deep-trawl fisheries. The fish is a bright, brick-red color, fading to a yellowish-orange after death.
Slimeheads, also known as roughies and redfish, are mostly small, exceptionally long-lived, deep-sea beryciform fish constituting the family Trachichthyidae. Found in temperate to tropical waters of the Atlantic, Indian, and Pacific Oceans, the family comprises about 50 species in eight genera. Slimeheads are named for the network of muciferous canals riddling their heads.
The silver roughy or Mediterranean slimehead is a small deep-sea fish species belonging to the slimehead family (Trachichthyidae). It is found widely at depths of 100 to 1,175 m (328–3,855 ft) in the Atlantic, ranging from Iceland and Georges Bank in the north to South Africa and Brazil in the south, including the Mediterranean and Gulf of Mexico. It is also found in the Western Indian Ocean, including the Red Sea.
Bodianus or the hogfishes is a genus of fish in the family Labridae found in the Atlantic, Indian and Pacific Ocean. These species have many parasites.
The slender roughy is a fish of the family Trachichthyidae. Until 2004 when two new species were described, the slender roughy was believed to be the only species in the genus Optivus. The slender roughy is found in the southwestern Pacific Ocean around New Zealand at depths between 10 and 100 m. Its length is up to 102 mm (4.0 in) standard length or 120 mm (4.7 in) overall total length.
Optivus is a fish genus from the family Trachichthyidae found from near the surface to depths of 320 m (1,050 ft) in the southwest Pacific Ocean off Australia and New Zealand.
Lepidotrigla is a genus of marine ray-finned fishes belonging to the family Triglidae, the gurnards and sea robins. These gurnards are found in the Eastern Atlantic, Indian and Western Pacific Oceans.
Hime is a genus of flagfins native to the eastern Indian Ocean and the western Pacific Ocean.
Chlorophthalmus is a genus of greeneyes
Poromitra is a genus of ridgeheads. The 22 known species of Poromitra have been divided into five species groups according to variation in preopercle anatomy.
Aulotrachichthys is a genus of slimeheads. Most species in this genus are known as luminous roughies.
Hoplostethus rubellopterus, is a small deep-sea fish species belonging to the slimehead family (Trachichthyidae).
Hoplostethus fedorovi is a small deep-sea fish species belonging to the slimehead family (Trachichthyidae).
The giant sawbelly is a medium-sized deep-sea fish species belonging to the slimehead family (Trachichthyidae). It is found along the western and southern coasts of Australia and near New Zealand. It lives on the continental slope between depths of 237 and 311 metres. It can reach sizes of up to 52.5 centimetres (20.7 in) SL.
The Western Pacific roughy is a species of slimehead found in the Northwest Pacific along Japan's southern coast in Sagami Bay, Suruga Bay, and the Sea of Japan. It can reach up to 12.6 cm (5.0 in) SL and its depth range is 336–605 m (1,102–1,985 ft).
The Red Sea roughy is a slimehead of the order Beryciformes. It is found in the Western Indian Ocean and the Red Sea at depths of up to 520 m (1,710 ft). It can reach sizes of up to 12.2 cm (4.8 in) SL. The species is known from only five specimens.
The New Zealand giant sawbelly is a slimehead of the order Beryciformes. It is native to the South Pacific, more specifically the sub-tropical and temperate latitudes of the Tasman and South Fiji basins. It is also found along Australia's southeastern coast, the Bay of Plenty, and southern Kermadec Ridge at the north end of New Zealand's North Island. It can reach sizes of up to 51.5 cm (20.3 in) SL. Its natural habitats are "continental slopes, seamounts, and submarine rises" between 250–400 m (820–1,310 ft), though it has been found as shallow as 140 metres (460 ft) and as deep as 760 m (2,490 ft). The first H. melanopeza caught were thought to be individuals of the H. gigas species, and it was not distinguished as a separate species until much later. One key difference between the two is that although both are red, H. melanopeza has black fin margins.
The metallic roughy is a slimehead of the order Beryciformes. It is native to the Western Central Pacific along the eastern seaboard of Negros Island in the Philippines and other locations in the Sulu Sea. It has a deep-water range of 55–550 m (180–1,804 ft). It is known from only 25 collected specimens, but members of this genus are known to frequently be "locally abundant," occurring in dense schools over seamounts.
The Metavay sawbelly is a slimehead of the order Beryciformes. It is native to the Indian Ocean along the northern section of the Mentawai ridge and western Australia. It can be found at depths between 800–875 m (2,625–2,871 ft) on the continental slope and can reach sizes of up to 20.3 cm (8.0 in) SL.
| Authority control databases: National |
|---|
 | This Beryciformes -related article is a stub. You can help Wikipedia by expanding it. |
