Skipjack shad put into place in the northernmost reaches of its distribution. While the skipjack shad has been attributed to the subgenus "Potomolobius" of the genus "Alosa" along with other North American shad species, it has been found to be phylogenetically the most basal of the "Alosa" species, which are also found in Europe and Western Asia. Skipjack shad The skipjack shad ("Alosa chrysochloris") is a North American, migratory, fresh- and brackish water fish species in the herring family Clupeidae. The name skipjack shad comes from the fact that it is commonly seen leaping out of the water while feeding. Other common
Coastal fish but ascend rivers to spawn; eels are catadromous, living in rivers and streams, but returning to the sea to breed. Besides the species that migrate through estuaries, there are many other fish that use them as "nursery grounds" for spawning or as places young fish can feed and grow before moving elsewhere. For example, herring and plaice are two commercially important species that use the Thames Estuary for this purpose. Mangrove swamps are associated brackish water habitats. Many, though not all, mangrove swamps fringe estuaries and lagoons where the salinity changes with each tide. Among the most specialised residents of