=LDR 22 4500 =001 1495 =082 04$a2009 DWY =100 1\$aDwyer, James =245 10$aThe effect of temperature on nitrate reductase activity in the marine macroalgae Ylva lactuca, Enteromorpha intestinalis, Fucus vesiculosus and Porphyra umbilicalis, and a comparison of physiological responses =260 \\$aDublin :$bUniversity of Dublin, Trinity College,$c2009 =650 \0$aTheses =852 \\$bFreeman Library$h2009 DWY