they go to the botton of the sea and lay eggs on a rock
Examples of catadromous fish include eels such as American eels and European eels. These fish are born in saltwater, migrate to freshwater to mature and spawn, and then return to the sea to complete their life cycle.
Well, for most of their life they actually live in freshwaters and lakes, then, once they have matured they move to the sea to go spawn.
Salmon migrate from the ocean to freshwater rivers and streams to spawn, returning to their exact place of birth in a remarkable feat known as anadromy. Eels migrate from freshwater rivers to the ocean to spawn, a process known as catadromy. Both species navigate these challenging journeys to ensure successful reproduction.
American eels (Anguilla rostrata) are found in a wide variety of habitats from Greenland to the east coast of South America. Eels, often the top predator and largest contributor to fish biomass in inland freshwaters systems throughout eastern North America Unlike salmon and other anadromous fish, eels are catadromous, maturing in freshwater and returning to the ocean to spawn.
The types of eels are salt water eels, freshwater eels, the swamp eels, rubber eels and the electric eels. It is an elongated fish that lives in the shallow waters.
Generally, moray eels are globally widespread and inhabit niches along reefs and other relatively shallow ocean bottoms.Related Information:Eels can be found in the top three ocean zones: epipelagic, mesopelagic and bathypelagicSome eels, born in salt water, live in fresh water for most of their lives, but return to the ocean to spawn.
We do not know as eels do not leave good fossils. Also your English is a bit wrong your question should be worded "How many extinct eels were there". This is because if they are extinct they would have lived in the past not the present.
Adult eels are called eels, babies are elvers
in eels
electric eels have an electric current that shocks thing Moray eels dont
eels eat fish
Eels have electricity.