Danube bleak gravel bottoms. The females arrive later and deposit about twenty thousand eggs which stick to stones and gravel. These hatch after two or three days and the larvae stay among the gravel for another ten days before moving to backwaters and shallows where they feed on zooplankton, insect larvae and algae. The juvenile fish migrate down stream in the autumn or the spring of the following year. They may become mature in four to five years. Danube bleak The Danube bleak or Caspian shemaya ("Alburnus chalcoides") is a species of freshwater fish in the family Cyprinidae. It is found in
David B. Bleak hands, killing him. Bleak was then confronted by a second soldier, whom he reportedly grabbed by the neck, fatally crushing his windpipe. A third Chinese soldier then approached, and in the ensuing scuffle, Bleak used his combat knife to kill him. Bleak then returned to the patrol and attempted to treat more wounded members, but soon thereafter a Chinese hand grenade bounced off the helmet of the soldier standing next to him and landed nearby. Bleak tackled the soldier and covered him with his larger frame to protect him from the grenade, but neither was injured in the ensuing blast.