Table 1 Table depicting the kick-sampling results for I. nubecula (i.e. how many specimens found at each site), the eDNA results using ddPCR analysis (i.e. if one natural replicate was positive to I. nubecula DNA), the amount of time spent performing kick-sampling and eDNA sampling, the amount of water filtrated for all natural replicate at each site, the sampling date, pH, dissolved oxygen and GPS coordinate. The site inaccessible for conducting a kick-sampling were marked “ns”.

From: Combining ddPCR and environmental DNA to improve detection capabilities of a critically endangered freshwater invertebrate

Sample ID

I. nubecula

eDNA (ddPCR)

Time (s)

Volume (ml)

Date

pH

O2

Latitude

Longitude

W1

0

No

60

350

31/03/2018

7.48

12.5

52.952759

−3.0232733

W2

3

Yes

60

200

01/04/2018

7.53

11.9

53.024980

−2.8760059

W3

30

No

60

700

09/03/2018

6.69

11.9

53.010679

−2.8998019

W4

16

Yes

120

1000

09/03/2018

6.52

11.8

53.003120

−2.9138314

W5

ns

Yes

45

750

15/03/2018

7.83

11.4

53.095257

−2.8967275

W6

ns

No

60

300

01/04/2018

7.82

12.5

53.011702

−2.8686273

W7

1

Yes

90

750

14/03/2018

7.67

11.6

52.978139

−2.9627502

W8

1

No

90

750

14/03/2018

7.8

10.7

52.964635

−2.9628967

W9

0

No

90

750

11/03/2018

6.75

11.8

52.945402

−3.0194684

W10

0

No

60

300

31/03/2018

7.74

13

52.970460

−3.0879607

W11

0

No

45

500

11/03/2018

6.63

11.6

53.100487

−2.9239146

W12

0

No

90

750

15/03/2018

7.69

10.9

52.967603

−3.0619060