Table 8 Survival and tolerance temperature range for four kelp species found in Brittany (from Belsher and Boyen 1983; Lüning 1984; tom Dieck (Bartsch) 1993; Birkett et al. 1998; Müller et al. 2008)

Laminaria digitata

−1.5

20–24

20 °C/19 °C

Upper : 17 °C/18 °C

Laminaria hyperborea

−1.5

22–23

20 °C/15 °C

21 °C/below 18 °C

Laminaria ochroleuca

1

25

22–23 °C/^a

^a/21 °C

Saccorhiza polyschides

1–>1

23–24

24 °C/^a

25 °C/below 17 °C

Halidrys siliquosa

25

^a

^a

Sargassum muticum

−9

30

^a

^a