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Table 3

Regression parameters describing the effects of reservoir area and stocking density on fish yield and stocking efficiency based on Gamma generalized linear models.

Relationships Intercept RateRatio R−squared p−value
AS<-lm (Area∼Stocking) 6.8657 0.9999 0.0099 0
AY<-lm (Area∼Yield) 4.6242 0.9999 0.0015 0.0835
SY<-lm(Stocking∼Yield) 3.6385 1.0009 0.0166 0
AE<-lm (Area∼Efficiency) −1.9287 1.0004 −0.0934 0.0015
L<-lm(StockingL∼YieldL) 3.9739 0.9995 0.001 0.4901
M<-lm (StockingM∼YieldM) 3.8524 1 0 0.9704
S<-lm(StockingS∼YieldS) 3.6473 1.0009 0.0144 0
SC1<-lm(StockingSC1∼YieldSC1) 4.0318 1.0006 0.0064 0
SC2<-lm(StockingSC2∼YieldSC2) 2.8062 1.0028 0.0087 0.0335
SC3<-lm(StockingSC3∼YieldSC3) 1.7112 1.0069 0.0151 0.5248

The relationship of overall Tamil Nadu reservoirs AS- area and stocking; AY- area and yield; SY- stocking and yield; AE- area and efficiency, L- large reservoirs; M- medium reservoirs; S- small reservoirs; SC1- small category I; SC2- small category II; SC3- small category III.

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