Pontic shad Pontic shad The Pontic shad ("Alosa immaculata", previously "Alosa pontica"), also referred to as the Black Sea shad or Kerch shad, is a species of clupeid fish in the genus "Alosa", native to the Black Sea and Sea of Azov basins. "Alosa immaculata" lives in the Black Sea and Sea of Azov, and adults migrate up rivers to spawn. It may also be found in the Marmara Sea in Turkey. It currently migrates up and spawns in six rivers: the Danube, Dnieper, Dniester, Southern Bug, Don and Kuban Rivers. Previously the migrations reached far upstream, up to 1,600 in Danube
Boesemania Boesemania Boesemania is a genus of freshwater fish in the family Sciaenidae. This genus contains the single species Boesemania microlepis. Also known as the boeseman croaker and smallscale croaker, this fish lives in southeast Asian rivers. This is a relatively large species. It can reach in length and in weight. "Boesemania microlepis" lives in Cambodia, Laos, Indonesia (Borneo and Sumatra), Malaysia, Vietnam and Thailand. It is found in several rivers such as the Mekong, Chao Phraya River, Mae Klong, Nan River, Tha Chin River, and Bang Pakong River. This species appears to be sedentary. It prefers large, flowing rivers. During