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The freshwater eel is one of the few fishes to spawn in the ocean and spend its adulthood in lakes, rivers, and estuaries.
Mola (Sunfish) ...
Other Names Freshwater Eel Description Anguilla and rostrata are both Latin, meaning "eel" and "beaked," respectively. The latter is probably a reference to the fish's snout.
The common freshwater eel, Anguilla rostrata, of the family Anguillidae, is found in the Atlantic coastal regions of Europe, in the Mediterranean area, and in North America E of the Rockies. Several other freshwater species are native to Asia.
Anguillidae, Freshwater Eels
Amblyopsidae, Cavefishes
Ictaluridae, Catfish
Percopsidae, Trout-Perches
Salmonidae, Trouts
Clupeidae, Herrings
Esocidae, Pikes
Aphredoderidae, Pirate Perches ...
Family: Anguillidae, Freshwater Eels view all from this family
Description To 4'11" (1.5 m). Elongate, snakelike, circular in cross section anteriorly, compressed posteriorly.
An eel sandwich: Freshwater eels (unagi) and marine eels (Conger eel, anago) are commonly used in Japanese cuisine. Eels are used in Cantonese and Shanghai cuisine too.
ANGUILLIFORMES
Includes freshwater eels, spaghetti eels, false morays, morays, arrowtooth eels, cutthroat eels, pugnose eels, snake eels, worm eels, conger eels, pike conger eels, longneck eels, snipe eels, sawtooth eels, duckbill eels
MORAYS ...
Skrzynski, W. (1974) Review of Biological Knowledge on New Zealand Freshwater Eels (Anguilla spp.). (Fisheries Technical Report No. 109). Wellington, New Zealand: Ministry of Agriculture and Fisheries.
The American eel is a member of the order of bony fishes called Anguilliformes and is also called Atlantic eel common eel, silver eel, yellow-bellied eel, freshwater eel, bronze eel, water snake and whip.
Distribution ...
migration, they can be anadromous (migrate up rivers to spawn), with a pattern of freshwater-ocean-freshwater (typical of salmon and lampreys), or catadromous (migrate from freshwater to the sea to spawn), which is characteristic of freshwater eels .
After reaching sexual maturity, the freshwater eels migrate out the the Sargasso Sea area of the Atlantic to spawn.
Some species such as salmon make a migration from saltwater upstream to freshwater where they spawn. Other species such as freshwater eels migrate from freshwater to salt water to spawn.
References: ...
 See also: Eel, Shark, Worm, Great White Shark, Big cat
  
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