Snub-nosed spiny eel | |
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Scientific classification ![]() | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Actinopterygii |
Order: | Notacanthiformes |
Family: | Notacanthidae |
Genus: | Notacanthus |
Species: | N. chemnitzii |
Binomial name | |
Notacanthus chemnitzii Bloch, 1788 | |
This article relies largely or entirely on a single source .(February 2023) |
The snub-nosed spiny eel (Notacanthus chemnitzii) is a member of the family Notacanthidae, the deep-sea spiny eels, which are not true eels (Anguilliformes). The snub-nosed spiny eel exists in waters all over the world, except in the tropics, [1] ranging in color from light tan to bluish grey in small ones to dark brown in large ones. [1] Its primary food is sea anemones. [1] The eel usually lives in deep waters, mostly more than 200 m below the surface. [1] Female snub-nosed spiny eels reach maturity around 18 years old, and are larger than 55 cm in length at maturity. Males reach maturity around 14 years and are larger than 66 cm in length. [2]
The snub-nosed spiny eel has 19-37 premaxillary teeth on each side. [3] They have multiple rows of palatine and dentary teeth. [3] Snub-nosed spiny eels have eyes that are approximately half the length of their snout. [3] Their dorsal fins have 8-12 spines, and their anal fins have 20-21 spines. [3]
The snub-nosed spiny eel can be found at a depth of 125 to 3285 m below the surface. [2]
The snub-nosed spiny eel is found in the subarctic Atlantic, around Iceland, Greenland, Norway, and Eastern Canada. [3] The most northern record of the snub-nosed spiny eel was in the northeast Atlantic off Bjørnsund, Norway. [3] The snub-nosed spiny eel has been found in waters of Russia near the Kuril Islands, the Sea of Okhotsk and the Barents Sea. [2] It is a rare species in many regions. Spawning fishes can be found in the northwestern Atlantic from October until March. [2]
The Notacanthiformes are an order of deep-sea ray-finned fishes, consisting of the families Halosauridae and Notacanthidae.
The dusky smooth-hound, also called the smooth dogfish or the dog shark, is a species of houndshark in the family Triakidae. This shark is an olive grey or brown in color, and may have shades of yellow or grayish white. Females live to 16 years and males have a lifespan of 10 years. M. canis was the first shark recognised to have viral infections.
The Atlantic mackerel, also known as Boston mackerel, Norwegian mackerel, Scottish mackerel or just mackerel, is a species of mackerel found in the temperate waters of the Mediterranean Sea, the Black Sea, and the northern Atlantic Ocean, where it is extremely common and occurs in huge shoals in the epipelagic zone down to about 200 m (660 ft). It spends the warmer months close to shore and near the ocean surface, appearing along the coast in spring and departing with the arrival of colder weather in the fall and winter months. During the fall and winter, it migrates out into deeper and more southern water, seeking warmer temperatures.
The porbeagle or porbeagle shark is a species of mackerel shark in the family Lamnidae, distributed widely in the cold and temperate marine waters of the North Atlantic and Southern Hemisphere. In the North Pacific, its ecological equivalent is the closely related salmon shark (L. ditropis). It typically reaches 2.5 m (8.2 ft) in length and a weight of 135 kg (298 lb); North Atlantic sharks grow larger than Southern Hemisphere sharks and differ in coloration and aspects of life history. Gray above and white below, the porbeagle has a very stout midsection that tapers towards the long, pointed snout and the narrow base of the tail. It has large pectoral and first dorsal fins, tiny pelvic, second dorsal, and anal fins, and a crescent-shaped caudal fin. The most distinctive features of this species are its three-cusped teeth, the white blotch at the aft base of its first dorsal fin, and the two pairs of lateral keels on its tail.
The spiny dogfish, spurdog, mud shark, or piked dogfish is one of the best known species of the Squalidae (dogfish) family of sharks, which is part of the Squaliformes order.
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The snubnosed eel, Simenchelys parasitica, also known as the pug-nosed eel, slime eel, or snub-nose parasitic eel, is a species of deep-sea eel and the only member of its genus. Some authors classify it as the sole member of the subfamily Simenchelyinae of the family Synaphobranchidae, or cutthroat eels, while others place it in its own monotypic family, the Simenchelyidae. It is found in the Atlantic and Pacific Oceans, typically at a depth of 500–1,800 m (1,600–5,900 ft) near the bottom. Although typically a scavenger, it is better known for using its powerful jaws and teeth to burrow into larger fishes as a parasite. This species is harmless to humans and of no interest to fisheries. The generic name Simenchelys translates literally as "pug-nosed eel".
The spiny-back eel, Notacanthus sexspinis, is a deep-sea spiny eel of the genus Notacanthus, found in all the Southern Hemisphere oceans at depths between 500 and 1,000 m. The length of this fish is up to 60 cm (24 in).
The brown lanternshark or bristled lanternshark is a little-known species of deep-sea dogfish shark in the family Etmopteridae. It is found off Japan and New Zealand, and possibly also South Africa and Australia, typically deeper than 300 m (980 ft). This species can be distinguished from other lanternsharks by its coloration, which is a uniform dark gray or brown without the ventral surface being much darker and clearly delineated from the rest of the body. The brown lanternshark feeds on small bony fishes, cephalopods, and crustaceans. Reproduction is ovoviviparous, with females giving birth to 9–18 young. An unusually high proportion of individuals in Suruga Bay are hermaphrodites, with both male and female characteristics.
The European conger is a species of conger of the family Congridae. It is the heaviest eel in the world and native to the northeast Atlantic, including the Mediterranean Sea.
The tub gurnard, also known as the sapphirine gurnard, tube-fish, tubfish or yellow gurnard, is a species of marine ray-finned fish belonging to the family Triglidae, the gurnards and sea robins. It is found in the eastern Atlantic Ocean. It is exploited by commercial fisheries as a food fish.
The whitefin trevally, also known as the horse trevally, is a species of deep water offshore fish in the jack family Carangidae. The species inhabits the tropical to temperate waters of the Indo-Pacific and central Pacific, ranging from South Africa in the west to Hawaii in the east. The whitefin trevally is a moderate-sized fish, growing to 37 cm, and is distinguished by a number of morphological traits, including fin size, gill raker count, and colour. It inhabits the continental shelf and slope at depths to 200 m over sand and mud substrates, where it preys on fish, crustaceans, and cephalopods. Studies in Japan indicate a length at sexual maturity of 17.4 cm on average, with spawning occurring between May and October, with each individual spawning multiple times. Whitefin trevallies are of high importance to fisheries in Japan, where they are taken by trawlers, although the catch numbers have halved since the 1980s. It is of minor importance elsewhere throughout its range, but is considered a good table fish.
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The green jobfish, also known as the gray jobfish, gray snapper, or slender snapper, and in Hawaiian as uku, is a species of marine ray-finned fish, a snapper belonging to the family Lutjanidae. It is found in the Indo-Pacific region. This species inhabits various reef environments at depths from near the surface to 120 metres (390 ft). It is a very important species for local commercial fisheries and is popular as a game fish, though it has been reported to cause ciguatera poisoning. It can also be found in the aquarium trade. This species is the only known member of its genus.
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Notacanthus is a genus of spiny eels in the family Notacanthidae.
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