کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4498054 1318963 2009 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Lévy processes and stochastic von Bertalanffy models of growth, with application to fish population analysis
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم کشاورزی و بیولوژیک (عمومی)
پیش نمایش صفحه اول مقاله
Lévy processes and stochastic von Bertalanffy models of growth, with application to fish population analysis
چکیده انگلیسی

The study of animal growth is a longstanding crucial topic of theoretical biology. In this paper we introduce a new class of stochastic growth models that enjoy two crucial properties: the growth path of an individual is monotonically increasing and the mean length at time tt follows the classic von Bertalanffy model. Besides the theoretical development, the models are also tested against a large set of length-at-age data collected on Atlantic herring (Clupea harengus): the mean lengths and variances of the cohorts were directly estimated by least squares. The results show that the use of subordinators can lead to models enjoying interesting properties, in particular able to catch some specific features often observed in fish growth data. The use of subordinators seems to allow for an increased fidelity in the description of fish growth, whilst still conforming to the general parameters of the traditional von Bertalanffy equation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Theoretical Biology - Volume 258, Issue 4, 21 June 2009, Pages 521–529
نویسندگان
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