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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).
These fish have an eel-like body. The largest species can reach a maximum length of 1 m (3.3 ft). [3] Very characteristic of this group is the long nose appendage with two tubulated nostrils. [3] Mastacembelids have a series of well-separated dorsal spines on their back, hence the name of their family, spiny eels. [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 ...
[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.
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This eel has remained fairly popular as an aquarium fish for years, owing to its unique appearance and behaviors. Additionally, like other species of eels throughout the world, the zig-zag eel serves as a viable protein and food source for humans, aquatic reptiles, birds and other, larger fishes throughout much of its range.
Muraenoidei is a suborder of mainly marine ray-finned fishes belonging to the order Anguilliformes, the eels. The eels in this suborder are distributed in the tropical and temperate seas around the world.