Discrimination of cod otolith shapes by two different Fourier methods

In this thesis we have applied Fisher’s discrimination method to cod samples to discriminate between cod originating from the coastal cod stock and cod originating from the arctic cod stock. The discrimination is based on Fourier coefficients extracted from cod otolith contours. We have optimized an...

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Bibliographic Details
Main Author: Henriksen, Are Murberg
Format: Master Thesis
Language:English
Published: UiT Norges arktiske universitet 2013
Subjects:
VDP::Mathematics and natural science: 400::Mathematics: 410::Statistics: 412
Otolith shape analysis
Fourier analysis
Cod stock
Fisher's discrimination
Elliptic Fourier methods
Discrete Fourier Transform
Concavisation
STA-3921
Arctic
Arctic cod
Online Access:https://hdl.handle.net/10037/5977
Description
Summary:In this thesis we have applied Fisher’s discrimination method to cod samples to discriminate between cod originating from the coastal cod stock and cod originating from the arctic cod stock. The discrimination is based on Fourier coefficients extracted from cod otolith contours. We have optimized and compared two different Fourier methods of extracting these coefficients. These methods are evaluated and compared in terms of discrimination results and robustness.

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