Author: Fatio, 1885
FBname: Lake Sempach whitefish
Comments: Lacustrine. Feeds on benthic (spring) and pelagic prey (summer); mainly crustaceans, insect larvae and molluscs. Spawns along gravel to stone shores, in very shallow water. Survival of Lake Hallwil population depends on stocking as eutrophication makes the lake unsuitable for reproduction since 1960 (Ref. 59043).  Reaches up to at least 38 cm SL (Ref. 59043).