Ascending rivers from the sea, at certain seasons, for breeding, as the salmon, shad, etc., Tending upwards; -- said of terns in which the lowest secondary segments are on the upper side of the branch of the central stem.
Anadromous: Relating to fish, such as salmon or shad, that migrate up rivers from the sea to breed in fresh water.Catadramous: Migratory pattern in which juvenile fish spawn in the open ocean but mature in freshwater.
Live in salt and freshwater
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.
If the fish does this for fun rather than to breed it is classed as an "amphidromous" species. If the fish lives mainly in the ocean and travels into fresh water to breed then it is "anadromous". Salmon come into this category.
anadromous fishes - live in ocean reproduce in freshwater or catadromous fishes - live in freshwater but reproduce in saltwater amphidromus fishes - move between fresh and saltwater for non-reproductive reasons
It is.
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.
It is a fish that is preggers
North American eel and the European eel
Yah, i think so. I learned that at school. HAHAhAHAH
hormones.
It lives in the sea but breeds in fresh water