Table 2.

Summary of dataset by the variables of site/farm characteristics, environmental aspects and disease history, and by zone.

Variables category	Variables	Variables type	Variables narration	LSZ1 (Khulna)	ISZ2 (Bagerhat)	HSZ3 (Satkhira)
				Average/Frequency
Site/farm characteristics	Prior land use	NV⁎	Rich or other crops farming: 3	120	23	56
			Wetland or others: 1	30	3	1
	Dominant soil type	NV	Sandy soil: 3	38	3	18
			Loamy soil: 2	93	16	33
			Clay soil: 1	19	7	6
	Average canal depth	CV⁎⁎	Continuous variable	4.52	4.73	3.32
	Average farm depth	CV	Continuous variable	2.7	3.03	1.96
	Culture practice	NV	Extensive: 2	131	24	57
			Semi-intensive: 1	19	2	0
Environmental variable	Temperature	CV	Continuous variable	30.2	27.1	29.3
	pH	CV	Continuous variable	7.8	7.6	7.4
	Salinity	CV	Continuous variable	7.4	10.2	15.9
Disease history	Previous prevalence of WSD	CV	Continuous variable	65.1	57.9	45.4
	Virus detected (current culture)	BV⁎⁎⁎	No: 0	71	5	13
			Yes: 1	79	21	44

¹LSZ: Low Saline Zone.

²ISZ: Intermediate Saline Zone.

³HSZ: High Saline Zone.

^⁎NV: Nominal Variable.

^⁎⁎CV: Continuous Variable.

^⁎⁎⁎BV: Binary Variable.