SHAPE-ANALYSIS OF OTOLITHS - A TOOL FOR INDIRECT AGING OF EEL, ANGUILLA-ANGUILLA (L)

被引：18

作者：

DOERING, P

LUDWIG, J

机构：

[1] Institut für Tierphysiologie, Freie Universität Berlin Tietzenweg

[2] Berlin

来源：

INTERNATIONALE REVUE DER GESAMTEN HYDROBIOLOGIE | 1990年 / 75卷 / 06期

关键词：

SHAPE ANALYSIS; FOURIER DESCRIPTOR; OTOLITH; EEL; ANGUILLA-ANGUILLA; AGING;

D O I：

10.1002/iroh.19900750607

中图分类号：

Q17 [水生生物学];

学科分类号：

071004 ;

摘要：

Eel otolith shapes can be seperated into distinct groups which can be assigned to certain age groups. The shape is described exactly through Fourier series using the maximum-projection-area. Clusters formed by the magnitudes of Fourier descriptors agreed with age groups of three year intervals by 66 % (kappa = .522, p < .001). Artificial shapes for the resulting clusters were constructed from the mean Fourier descriptors. Further studies with eels of known age are needed to validate shape analysis of otoliths as an objective measure for indirect ageing.

引用

页码：737 / 743

页数：7

共 13 条

[1]

[Anonymous], LEHRBUCH STAT SOZIAL

[2] AGE-DETERMINATION OF EELS, ANGUILLA-ANGUILLA (L) - COMPARISON OF FIELD DATA WITH OTOLITH RING PATTERNS [J].