L'espècie es creia extingida des-de 1970 a causa de l'eutrofització del llac de Constança. Al 2016 durant el 'Project Lac' que va investigar les profunditats del llac es varen trobar alguns individus vius.[4]
↑Richardson J. 1836. The Fish. A Fauna Boreali-Americana; or the zoology of the northern parts of British America: containing descriptions of the objects of natural history collected on the late northern land expeditions, under the command of Sir John Franklin, R.N. Fauna Boreali-Americana Part 3. i-xv + 1-327.
↑Schillinger, A., 1901. Der Tiefseeaibling. Allgem. Fischerei Zeitg.: 149-151.
Beamish, F.W.H., 1980. Swimming performance and oxygen consumption of the charrs. p. 739-748. A E.K. Balon (ed.) Perspectives in vertebrae science: charrs, salmonid fishes of the genus Salvelinus. Chapter 24. W. Junk, Dordrecht, Països Baixos.
Freyhof, J. i M. Kottelat, 2005. Salvelinus evasus sp. n., a charr from deep waters of Lake Ammersee, southern Germany (Teleostei: Salmonidae), with comments on two extinct species. Rev. Suisse Zool. 112(1): 253-269.
Phillips, R.B. i P.E. Ihssen, 1985. Chromosome banding in salmonid fish: Nucleolar organizer regions in Salmo and Salvelinus. Canad. J. Genet. Cytol.. 27():433-440.
Phillips, R.B., K.A. Pleyte i P.E. Ihssen, 1989. Patterns of chromosomal nucleolar organizer region (NOR) variation in fishes of the genus Salvelinus. Copeia 1989:47-53.