Huchen attain a maximum weight of over 100 pounds although most are much smaller. The Huchen get quite large and I believe the largest of the no seagoing salmoniods.
Huchen are fast growing and become sexually mature in 4-6 years. Huchen spawn in April, sometimes as late as May. Before the spawn the Huchen migrate a short was up river. The females make a pit into the gravel, in which the male fertilizes the eggs.
Range: Rivers of the Danube basin. They have now been introduced into other European river basins when their numbers declined due to ecological changes in the Danube.