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Table 1 Descriptive statistics of variables of interest in datasets 1 and 2

From: Parasitic sea louse infestations on wild sea trout: separating the roles of fish farms and temperature

Variable

Acronyma

Dataset 1

Dataset 2

n

Mean ± SD

Range

n

Mean ± SD

Range

Attached lice count

NliceA

424

24.73 ± 50.46

0–770

1051

17.3 ± 38.4

0–770

Log (attached lice count) - standardized

NliceA_std

424

0.01 ± 1.00

-1.44–2.59

1051

0.0 ± 1.0

-1.3–2.98

Mobile (adult) lice count

NliceM

424

11.79 ± 16.8

0–105

1051

15.3 ± 23.2

0–249

Log (mobile lice count) - standardized

NliceM_std

424

0.00 ± 1.00

-1.42–2.06

1051

0.0 ± 1.0

-1.43–2.36

Temperature °C

 

424

9.83 ± 1.99

5.96–13.84

na

na

na

Temperature - standardized

T

424

0.00 ± 1.00

-1.933–2.004

na

na

na

Estimate lice exposure

 

424

4,884,096 ± 6,660,133

10,060–3.77×107

na

na

na

Log (estimate lice exposure) - standardized

IP

424

14.03 ± 2.10

9.22–17.44

na

na

na

Day

 

na

na

na

1051

158.0 ± 19.2

95–214

  1. aAcronym used throughout the manuscript and in all tables
  2. Abbreviations: n number of observations, log log-transformed variable using the natural logarithm, SD standard deviation, na not available, NliceA number of attached stages of lice, NliceM number of adult or mobile stages of lice, T, standardized water temperatures described in the text, IP estimated infestation pressure described in the text