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The fire eel (Mastacembelus erythrotaenia) is a relatively large species of spiny eel. This omnivorous freshwater fish is native to Southeast Asia but is also found in the aquarium trade. [ 1 ] [ 3 ] Although it has declined locally (especially in parts of Cambodia and Thailand) due to overfishing , it remains common overall.
Mastacembelus is a genus of many species of spiny eel fish from the family Mastacembelidae.They are native to Africa (c. 45 species) and Asia (c. 15 species). [4] Most are found in rivers and associated systems (even in rapids [5]), but there are also species in other freshwater habitats and a particularly rich radiation is found in the Lake Tanganyika basin with 15 species (14 endemic).
Spiny eels generally inhabit soft-bottomed habitats in fresh and occasionally brackish water. Some species burrow in the substrate during the day or for certain months and have been found buried in soil in drying periods. [4] These fish have an eel-like body. The largest species can reach a maximum length of 1 m (3.3 ft). [3]
The term "eel" is also used for some other eel-shaped fish, such as electric eels (genus Electrophorus), swamp eels (order Synbranchiformes), and deep-sea spiny eels (family Notacanthidae). However, these other clades , with the exception of deep-sea spiny eels, whose order Notacanthiformes is the sister clade to true eels, evolved their eel ...
The most commonly found Spiny eels in the Aquarium trade are the Macrognathus and Mastacembelus from Sri Lanka, China, Southeast Asia and India. These include such eels as the Peacock and Striped Peacock, the Tire Track and or White spotted eel, the Zig Zag, Fire, Siamese, and Zebra eels.
The zig-zag eel (Mastacembelus armatus Scopoli, 1777 [3]), also known as the Baim, [4] tire-track, tire-track spiny-eel, freshwater spiny eel, or marbled spiny eel, [2] is a species of freshwater ray-finned fish in the family Mastacembelidae.
[23] [24] As open ocean voyagers, eels need the carrying capacity of the swimbladder (which makes up 3–6% of the eel's body weight) to cross the ocean on stored energy alone. Because the eels are catadromous (living in fresh water but spawning in the sea), dams and other river obstructions can block their ability to reach inland feeding grounds.
Family Muraenidae Rafinesque, 1815 (moray eels) Subfamily Uropterygiinae Fowler, 1925 (tailfin moray eels) Subfamily Muraeninae Rafinesque, 1815 (morays) Infraorder Congrales. Family Colocongridae Smith, 1976 (shorttail eels) Family Derichthyidae Gill, 1884 (longneck eels or narrowneck eels) Family Ophichthidae Günther, 1870 (snake eels and ...