The entrance to the gulf is through a -wide channel between Aktio (ancient
Actium) on the south and
Preveza on the north; a
recent road tunnel connects the two. The gulf is quite shallow, and its northern shore is broken by numerous
marshes, large parts of which form an
estuary system. The
Louros and
Arachthos (or Arta) rivers drain into it; for this reason it is warmer and less salty than the Ionian, and a current flows from the gulf into the sea. It is rich in
grey mullet,
sole, and
eel, and is also very famous for the
local variety of large shrimp (gabari, in Greek γάμπαρη). It is home to
Melibe viridis, a species of sea slug, a nudibranch, a marine gastropod mollusk in the family Tethydidae. Sea turtles and dolphins regularly make an appearance, while it contains lagoons very important for birds, attracting among others pelicans and flamingoes. ==History==