Table 2.

Parameters used for fitting of the curves to the experimental data showing the variation of the ratio of nuclear volume (V _n) to cellular volume (V _c) in CS tissue layout (ζ) of Mystus tengara with increasing ZnS nanoparticle concentration (σ) for a fixed exposure time (t = 60 days) keeping nanoparticle size (d) as a parameter and the correlation coefficients between ζ and σ for a fixed d.

Nanoparticle size (d) (nm)	Γ (L/μg)γ	γ	Reduced χ 2	R 2	Pearson correlation coefficient (r)
3	0.192	0.263	1.260 × 10−4	0.990	0.943
7	0.138	0.261	1.676 × 10−4	0.987	0.966
12	0.136	0.250	5.086 × 10−5	0.995	0.976
20	0.117	0.232	2.884 × 10−4	0.968	0.977