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Estimating Foetal Growth Rate from Cross‐Sectional Samples of Field Data with Application to Pilot‐Whales
Author(s) -
Rothery P.,
Hiby A. R.,
Martin L.,
Garside S.
Publication year - 1995
Publication title -
journal of the royal statistical society: series c (applied statistics)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.205
H-Index - 72
eISSN - 1467-9876
pISSN - 0035-9254
DOI - 10.2307/2986342
Subject(s) - cross sectional study , field (mathematics) , environmental science , statistics , fishery , biology , mathematics , pure mathematics
SUMMARY A method is developed for estimating foetal growth rate from cross‐sectional samples of field data, using a model for the distribution of foetal lengths at various times of the year to allow for a seasonal pattern in conception rates. The method is applied to data from catches of pilot‐whales off the Faroes taken over a 3‐year period. This indirect approach provides an estimate of gestation length which is shorter than previously suggested.