Figure 5.

Mean (±1 SE) relative water content of Laminaria digitata (left) and Laminaria ochroleuca (right) from St Mawes Bay, UK in response to four consecutive 1 hr emersion exposures at (a + b) 24°C, (c + d) 28°C and (e + f) 32°C (n = 5). Initial open symbol represents F _v/F _m prior to any experimental treatment. Closed symbols are taken immediately after treatments. Initial open symbol represents F _v/F _m prior to any experimental treatment. Subsequent open symbols are taken 24 hrs after treatments to track daily recovery. + represents significant difference from control. * represents significant difference between species. Different letters represent significant differences from means within each species and treatment