The principal component analysis of the indicators calculated in this study also showed that both anchovy and sardine presented strong correlation but opposite patterns between biomass and certain principal components in which the loading of overlapping (GIC values) was highly significant (negative and positive, respectively).
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Interannual Changes in Biomass Affect the Spatial Aggregations of Anchovy and Sardine as Evidenced by Geostatistical and Spatial Indicators.
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