Assessment of fish stock supplementation for sustainable production from reservoirs of Tamil Nadu state, India

Open Access

Table 2

The relationship between stocking density, area, fish yield and stocking efficiency of different size group reservoirs.

Category of reservoirs	SD (No. ha⁻¹ yr⁻¹)	Y(kg ha⁻¹ yr⁻¹)	SE	r (SD Vs Y)	r (A Vs Y)	r (A Vs SE)
All reservoirs	19.81–8196.7	0.04–1719.51	0.0002–5.31	0.234	−0.691	0.034
Large	22.62–725.28	3.769–98.188	0.025–0.27	−0.091	0.459	0.001
Medium	19.81–1000	5.261–452.516	0.010–0.891	0.512	−0.371	−0.008
Small	27.86–8196.72	0.040–1719.51	0.010–1.928	0.224	−0.092	−0.038
SC-1	27.86–1585.71	0.192–362.82	0.0003–0.695	0.289	−0.255	−0.261
SC-2	82.8–500.8	0.040–1719.51	0.0002–1.685	0.318	0.006	0.033
SC-3	100–8196.7	0.333–680.49	0.0005–1.928	0.260	0.010	0.024

Stocking density- SD, Stocking efficiency- SE, Yield- Y, Area- A, r- correlation coefficient, SC1- small category I, SC2- small category, II; SC3- small category III.

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