title: [Growth in length of the bearded seal (Erignathus barbatus, Erxleben 1777) following Benjaminsen (1973) data].
abstract: Length data for almost 200 bearded seals around Svalbard and in the Barents Sea gained in 1968 and 1970 by Benjaminsen are taken as a basis for mathematical considerations. Age has been deduced from annual bandings of teeth in the upper jaw and in the claws. In the original treatment a curve for length growth has been drawn by eye despite severe scattering of the basic data. The mathematical methods now available allow approximations by growth functions and lead to a surprising agreement for 5 functions of quite different structure. Tables and graphs are added for the development of length growth and increase respectively.
mesh_terms: D000367:Age Factors; D000818:Animals; D001699:Biometry; D010872:Caniformia / Q000254:growth & development*; D046048:Seals, Earless / Q000254:growth & development*
vernacular_title: Zum Längenwachstum der Bartrobbe (Erignathus barbatus, Erxleben 1777) nach Daten von Benjaminsen (1973).