Keywords: Ascophyllum nodosum; Ascophyllum nodosum, biomass, wet mass; Biomass, wet mass; Comment; Date/Time of event; Event label; Fucus vesiculosus; Fucus vesiculosus, biomass, wet mass; Fves_bent_1; Fves_bent_10; Fves_bent_11; Fves_bent_12; Fves_bent_13; Fves_bent_2; Fves_bent_3; Fves_bent_4; Fves_bent_5; Fves_bent_6; Fves_bent_7; Fves_bent_8; Fves_bent_9; Fves_float_1; Fves_float_10; Fves_float_11; Fves_float_12; Fves_float_13; Fves_float_14; Fves_float_15; Fves_float_2; Fves_float_3; Fves_float_4; Fves_float_5; Fves_float_6; Fves_float_7; Fves_float_8; Fves_float_9; Gracilaria vermiculophylla; Gracilaria vermiculophylla, biomass, wet mass; Himanthalia elongata; Himanthalia elongata, biomass, wet mass; Latitude of event; Longitude of event; Salicornia europaea, biomass, wet mass; Salicornia maritima; Sample ID; Sargassum muticum; Sargassum muticum, biomass, wet mass; Smut_bent_1; Smut_bent_10; Smut_bent_11; Smut_bent_12; Smut_bent_13; Smut_bent_2; Smut_bent_3; Smut_bent_4; Smut_bent_5; Smut_bent_6; Smut_bent_7; Smut_bent_8; Smut_bent_9; Smut_float_1; Smut_float_10; Smut_float_11; Smut_float_12; Smut_float_2; Smut_float_3; Smut_float_4; Smut_float_5; Smut_float_6; Smut_float_7; Smut_float_8; Smut_float_9; Status; Suaeda maritima; Suaeda maritima, biomass, wet mass; Sylt, Rømø bight, North Sea; Zostera marina; Zostera marina, biomass, wet mass; Zostera noltii; Zostera noltii, biomass, wet mass