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Title: Spatial heterogeneity of demersal fish in East China Sea
Authors: Su, F
Zhou, C
Shi, W 
Du, Y
Keywords: Fishery resources
Marine geographic information system
Spatial autocorrelation
Spatial heterogeneity
Issue Date: 2004
Publisher: 中國學術期刊(光盤版)電子雜誌社
Source: 應用生態學報 (Chinese journal of applied ecology), 2004, v. 15, no. 4, p. 683-686 How to cite?
Journal: 應用生態學報 (Chinese journal of applied ecology) 
Abstract: Quantitative analysis for the spatial distribution of fish is one of the important methods in fishery or fish ecology research. In this paper, the indexes Geary c and Moran I for the density distribution of demersal fish were calculated, and the semivariograms were drawn.The values of Geary c and Moran I were 0.38 and 0.52, respectively, and the C o/C o + C was 59.9%, which meant that the distribution had a medium spatial autocorrelation with anisotropy, and the heterogeneity caused by random was a little higher than that caused by spatial autocorrelative process. The annual fluctuation of density was caused by the spatial autocorrelation and the random, because the density was significantly positively correlated with the values of C, C o and C+ C o. respectively.
ISSN: 1001-9332
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