On the use of Lloyd's index of patchiness

被引：39

作者：

Bez, N ^{[1
]}

机构：

[1] Ctr Geostat, F-77305 Fontainebleau, France

来源：

FISHERIES OCEANOGRAPHY | 2000年 / 9卷 / 04期

关键词：

aggregation; counts; crowding; densities; zeroes;

D O I：

10.1046/j.1365-2419.2000.00148.x

中图分类号：

S9 [水产、渔业];

学科分类号：

0908 ;

摘要：

Lloyd's index of patchiness, and to a lesser extent, of mean crowding, are often applied to (fish or ichthyoplankton) densities, although they were designed for use with counts of individuals. The consequences of this erroneous application are described with examples. Alternative statistics are presented for application to densities. Like the mean crowding, these statistics are robust against zeroes and cannot be considered as spatial statistics.

引用

页码：372 / 376

页数：5

共 8 条

[1]

BEZ N, 1997, GEOSTATISTICS WOLLON, V2, P1316

[2]

BEZ N, 2000, IN PRESS FISH RES

[3]

de Nie H.W., 1980, Journal of Plankton Research, V2, P317, DOI 10.1093/plankt/2.4.317

[4]

HEWITT R, 1981, Rapports et Proces-Verbaux des Reunions Conseil International pour l'Exploration de la Mer, V178, P229