Table 3 Environmental variables, day of opening (DOO, ordinal day of year), day of retreat (DOR, ordinal day of year), seasonal loss of ice period (SLIP, ordinal day of year), maximum chlorophyll a concentration (mg/m3), and summer sea surface temperature (°C) measured within the home range of Arctic char in Labrador, Canada.

From: Changing environmental conditions have altered the feeding ecology of two keystone Arctic marine predators

Year

Day of opening (DOO)

Day of retreat (DOR)

Seasonal loss of ice period (SLIP)

Maximum chlorophyll a concentration (mg/m3)

Summer sea surface temperature (°C)

2006

99

132

33

1.05

6.57

2007

156

177

21

0.57

5.72

2008

148

163

15

2.25

7.08

2009

167

175

8

2.16

5.90

2010

147

177

30

1.45

7.32

2013

156

197

41

0.86

5.83

2014

152

172

20

1.11

7.02

2015

124

157

33

1.19

5.81

2016

164

179

15

1.29

6.10

2017

149

166

17

0.99

6.16

2018

128

184

56

1.36

4.90

2019

148

174

26

0.59

6.10