Alosa braschnikowi Alosa braschnikowi Alosa braschnikowi, the Caspian marine shad or Brazhnikov's shad, is one of the clupeid fish species endemic to the Caspian Sea. This is a relatively large shad, typically 30 cm and up to 50 cm length. It also has a more "herring-like" body shape than other Caspian shad species, being a slender and elongate fish. It has well developed teeth in both jaws. "Alosa braschnikowi" feeds on small fishes but also on crustaceans and occasionally other invertebrates. It performs migrations within the Caspian Sea, but does not enter rivers. Several subspecies have been described, with different breeding habits
Cisco (fish) Cisco (fish) The ciscoes (or "ciscos") are salmonid fish of the genus "Coregonus" that differ from other members of the genus in having upper and lower jaws of approximately equal length and high gill raker counts. These species have been the focus of much study recently, as researchers have sought to determine the relationships among species that appear to have evolved very recently. The term "cisco" is also specifically used of the North American species "Coregonus artedi", also known as lake herring. In previous taxonomic classifications, the ciscoes have been identified as a subgenus "Leucichthys" of the genus "Coregonus". Based