Macroalgal blooms of Hypnea musciformis and Ulva fasciata in coastal waters of Maui only occur in areas of substantial anthropogenic nutrient input, sources of which include wastewater effluent via injection wells, leaking cesspools and agricultural fertilizers. Algal dN signatures were used to map anthropogenic nitrogen through coastal surveys (island-wide and fine-scale) and algal deployments...

Two polysaccharide fractions isolated from Hypnea musciformis after room temperature- and hot water extraction, soluble after KCl precipitation of the more abundant carrageenans, were subfractionated by ion-exchange chromatography eluting with increasing concentrations of NaCl. The lowest NaCl concentration (0.2M) eluted agarans. The dl-hybrids (or mixtures) eluted at intermediate concentration...

A total of ten seaweeds and four seagrasses were used in the present investigation to study the effect of crude methanol extracts on anti-biofilm activity using a microtiter-plate and anti-larval settlement assay using cyprids of barnacle Balanus amphitrite. Of these fourteen species tested, seagrass Halophila ovalis showed noticeable anti-biofilm activity against Listeria monocytogenes, Vibrio...