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Full-Text Articles in Life Sciences
Ecological And Physiological Controls Of Species Composition In Green Macroalgal Blooms, Kathryn L. Van Alstyne Dr., Timothy A. Nelson, Karalon Haberlin, Amorah V. Nelson, Heather Ribarich, Ruth Hotchkiss, Lee Buckingham, Dejah J. Simunds, Kerri Fredrickson
Ecological And Physiological Controls Of Species Composition In Green Macroalgal Blooms, Kathryn L. Van Alstyne Dr., Timothy A. Nelson, Karalon Haberlin, Amorah V. Nelson, Heather Ribarich, Ruth Hotchkiss, Lee Buckingham, Dejah J. Simunds, Kerri Fredrickson
Shannon Point Marine Center Faculty Publications
Green macroalgal blooms have substantially altered marine community structure and function, specifically by smothering seagrasses and other primary producers that are critical to commercial fisheries and by creating anoxic conditions in enclosed embayments. Bottom-up factors are viewed as the primary drivers of these blooms, but increasing attention has been paid to biotic controls of species composition. In Washington State, USA, blooms are often dominated by Ulva spp. intertidally and Ulvaria obscura subtidally. Factors that could cause this spatial difference were examined, including competition, grazer preferences, salinity, photoacclimation, nutrient requirements, and responses to nutrient enrichment. Ova specimens grew faster than …
The Distribution Of Dmsp In Green Macroalgae From Northern New Zealand, Eastern Australia And Southern Tasmania, Kathryn L. Van Alstyne Dr.
The Distribution Of Dmsp In Green Macroalgae From Northern New Zealand, Eastern Australia And Southern Tasmania, Kathryn L. Van Alstyne Dr.
Shannon Point Marine Center Faculty Publications
The sulphonium compound diinethylsulphoniopropionate (DMSP) is commonly found in temperate green macroalgae. To examine taxonomic and regional and local geographical patterns of DMSP production in Australasian algae, I collected 30 species of green algae from 14 sites in three regions, eastern Australia, Tasmania, Australia, and the North Island of New Zealand. The distribution of DMSP content was similar to that seen from other areas of the world. DMSP was found in high concentrations in Ulva and Codium spp. It tended to be undetectable or in lower concentrations in other members of the orders Bryopsidales and Cladophorales. There was …