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Growth in harbour seals ( Phoca vitulina ) on the Norwegian coast
Author(s) -
Markussen N. H.,
Bjørge A.,
ØRitsland N. A.
Publication year - 1989
Publication title -
journal of zoology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.915
H-Index - 96
eISSN - 1469-7998
pISSN - 0952-8369
DOI - 10.1111/j.1469-7998.1989.tb02591.x
Subject(s) - phoca , biology , gompertz function , body weight , zoology , statistics , mathematics , endocrinology
The weight gain in lactating harbour seal pups and sex‐specific growth curves are described. The relationship between body length, body weight and age were derived by regression analysis based on length and age data from 365 seals, and weight values from 136 seals. The asymptotic values of the curves describing body length were 148.0 cm and 147.2 cm in females and 153.9 cm and 155.5 cm in males using Gompertz and von Bertalanffy, respectively. The corresponding body weight values were 72.8 kg and 76.7 kg in females and 90.7 kg and 88.4 kg in males.