Rock greenling | |
---|---|
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Actinopterygii |
Order: | Scorpaeniformes |
Family: | Hexagrammidae |
Genus: | Hexagrammos |
Species: | H. lagocephalus |
Binomial name | |
Hexagrammos lagocephalus (Pallas, 1810) | |
Synonyms [2] | |
The rock greenling (Hexagrammos lagocephalus) is a species of marine ray-finned fish belonging to the family Hexagrammidae, the greenlings. [3] [4] It is sometimes known as fringed greenling and erroneously as the red rock trout. [5]
The rock greenling was first formally described in 1810 as Labrax lagocephalus by the German naturalist Peter Simon Pallas with its type locality given as the Kuril Islands. [6] The specific name, lagocephalus, means "harehead", an name not explained by Pallas but may refer to the rounded, rabbit like snout. [7]
The fish is maroon, with blue spot that fades to bright red. [3] The color pattern helps it blend in with its natural environment. It grows to up to 24 in (60 cm) long. [4] Most adult have blue mouths, [8] while the young have bright red eyes. [5] The flesh is also blue in color, but turns into white after cooked. [9]
The species is usually solitary, but not aggressive, which has led to easy husbandry in public aquaria. It is sometimes cryptic, however, and often elusive to divers and spear fishermen, as they prefer living among the rock in the heavy surge. [5]
Hexagrammos lagocephalus is a generalized feeder, eating everything from invertebrates such as crabs and isopods to fish eggs and algae. When young, the fish eat zooplankton.
The rock greenling's natural distribution is along the Pacific Coast the Kuril Islands [6] and the Bering Sea to the coast of southern California. Its habitat of choice is rocky shoreline. [4] Sometimes, though, they can be found in tidepools and sandy areas. [5]
Though not commonly commercially fished like the related lingcod, they are a popular gamefish. Most live among areas impossible to fish by commercial boats. [5] They are commonly caught by sport fishers off exposed rocky shores. [8]
Maylandia lombardoi, is a 13 centimetres (5.1 in) long freshwater fish from the family Cichlidae. This species is popular in the aquarium hobby where it is sold under a variety of common names including: lombardoi mbuna, kenyi mbuna or kennyi mbuna or kenyi cichlid. This species is sometimes seen in the genus Metriaclima owing to a dispute in which a minority of cichlid researchers do not consider Maylandia valid (see Maylandia for discussion. The specific name honours the exotic fish dealer John Lombardo.
The clearfin lionfish, also called the tailbar lionfish, radiata lionfish, fireworks fish or radial firefish, is a carnivorous, ray-finned fish with venomous spines belonging to the family Scorpaenidae, the scorpionfishes and lionfishes. This species lives in the Indian and western Pacific Oceans. This is the only lionfish species which has spines without any markings. It can also be recognized by the pair of horizontal white stripes on its caudal peduncle.
The painted greenling is a species of marine ray-finned fish belonging to the family Zaniolepididae, which includes this species and the combfishes. It is endemic to the northeast Pacific Ocean. It is the only species in the genus Oxylebius.
The mangrove red snapper, also known as mangrove jack, grey snapper, creek red bream, Stuart evader, dog bream, purple sea perch, red bream, red perch, red reef bream, river roman, or rock barramundi, is a species of marine ray-finned fish, a snapper belonging to the family Lutjanidae. It has a wide Indo-Pacific range and has recently been recorded in the eastern Mediterranean Sea.
The blue mbuna is a species of cichlid found in Lake Malawi where it inhabits areas with rocky substrates. This species can reach a length of 30 centimetres (12 in) SL. This species is important to local commercial fisheries as well as being found in the aquarium trade. Some of its mottled forms are sometimes known as marmalade cat.
Zaniolepis, the combfishes, is a genus of marine ray-finned fish, it is one of two genera in the family Zaniolepididae. These fishes are native to the eastern Pacific Ocean. Z. frenata that was a source of food to the Native American inhabitants of San Nicolas Island off the coast of southern California, United States during the Middle Holocene.
The Korean sandlance is a species of marine ray-finned fish belonging to the family Hypoptychidae. The Korean sandlance is the only species in this monotypic family and genus and is found in the northwestern Pacific Ocean.
Centropyge ferrugata, the rusty angelfish, is a species of marine ray-finned fish, a marine angelfish belonging to the family Pomacanthidae. The rusty angelfish comes from the Western Pacific Ocean and sometimes makes its way into the aquarium trade.
Cantherhines dumerilii is a species of fish in the family Monacanthidae, the filefishes. Its common names include whitespotted filefish, barred filefish, orange-fin file, and yelloweye leatherjacket. It is distributed in the Indian and Pacific Oceans where it is found on coral reefs.
Sladenia shaefersi is a species of fish in the family Lophiidae. It also commonly goes by the name of Shaefer's anglerfish. It was first discovered in the Caribbean Sea off the coast of Colombia and was described in 1976. It grows to 28 cm (11 in) standard length.
The kelp greenling is a species of marine ray-finned fish belonging to the family Hexagrammidae, the greenlings. It occurs in the eastern Pacific Ocean
Clinocottus acuticeps, the sharpnose sculpin, is a species of marine ray-finned fish belonging to the family Cottidae, the typical sculpins. This sculpin is found in the eastern Pacific Ocean.
Hexagrammos is a genus of marine ray-finned fishes belonging to the family Hexagrammidae, the greenlings. These fishes are found in the north Pacific Ocean.
Pleurogrammus is a genus of ray-finned fishes belonging to the family Hexagrammidae, the greenlings, known as atka mackerels. These fishes are found in the northwestern Pacific Ocean.
The blue-and-gold snapper is a species of marine ray-finned fish, a snapper belonging to the family Lutjanidae. It is native to the eastern Pacific Ocean where it is important to local subsistence fisheries.
Aphareus furca, the small toothed jobfish, blue smalltooth jobfish, fork-tailed snapper or snapper jobbyfish is a species of marine ray-finned fish, a snapper belonging to the family Lutjanidae. It is found in the Indo-Pacific region.
Pristipomoides multidens, the goldbanded jobfish or goldbanded snapper, is a species of ray-finned fish, a snapper belonging to the family Lutjanidae. It is found in the Indian and Pacific Oceans.
The Clarion angelfish is a species of marine ray-finned fish, a marine angelfish belonging to the family Pomacanthidae. It is found in the eastern Pacific Ocean, almost exclusively near islands off the Pacific coast of Mexico.
Microspathodon bairdii, the bumphead damselfish, is a species of ray-finned fish from the family Pomacentridae. It is found in the eastern Pacific Ocean.
The stippled gunnel is a species of marine ray-finned fish belonging to the family Pholidae, the gunnels. It is the only species in the monospecific genus Rhodymenichthys. It is found in the northern North Pacific Ocean.