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Sulfur Isotope Variability Of Oceanic Dmsp Generation And Its Contributions To Marine Biogenic Sulfur Emissions, Kathryn L. Van Alstyne Dr., Harry Oduro, James Farquhar
Sulfur Isotope Variability Of Oceanic Dmsp Generation And Its Contributions To Marine Biogenic Sulfur Emissions, Kathryn L. Van Alstyne Dr., Harry Oduro, James Farquhar
Shannon Point Marine Center Faculty Publications
Oceanic dimethylsulfoniopropionate (DMSP) is the precursor to dimethylsulfide (DMS), which plays a role in climate regulation through transformation to methanesulfonic acid (MSA) and nonseasalt sulfate (NSS-SO4 2−) aerosols. Here, we report measurements of the abundance and sulfur isotope compositions of DMSP from one phytoplankton species (Prorocentrum minimum) and five intertidal macroalgal species (Ulva lactuca, Ulva linza, Ulvaria obscura, Ulva prolifera, and Polysiphonia hendryi) in marine waters. We show that the sulfur isotope compositions (δ34S) of DMSP are depleted in 34S relative to the source seawater sulfate by ~1–3‰ and are …
Larval Dispersal: Vent Life In The Water Column, Diane K. Adams, Shawn M. Arellano, Breea Govenar
Larval Dispersal: Vent Life In The Water Column, Diane K. Adams, Shawn M. Arellano, Breea Govenar
Shannon Point Marine Center Faculty Publications
Visually striking faunal communities of high abundance and biomass cluster around hydrothermal vents, but these animals don’t spend all of their lives on the seafloor. Instead, they spend a portion of their lives as tiny larvae in the overlying water column. Dispersal of larvae among vent sites is critical for population maintenance, colonization of new vents, and recolonization of disturbed vents. Historically, studying larvae has been challenging, especially in the deep sea. Advances in the last decade in larval culturing technologies and more integrated, interdisciplinary time-series observations are providing new insights into how hydrothermal vent animals use the water column …
Rebuilding A Vent Community: Lessons From The Epr Integrated Study Site, Breea Govenar, Shawn Arellano, Diane K. Adams
Rebuilding A Vent Community: Lessons From The Epr Integrated Study Site, Breea Govenar, Shawn Arellano, Diane K. Adams
Shannon Point Marine Center Faculty Publications
The discovery of a seafloor eruption at the East Pacific Rise (EPR ) in 1991 presented an opportunity to examine the colonization and assembly of macrofaunal communities at newly formed diffuse-flow vents as well as to document the changes in community composition (Shank et al., 1998) in the context of temperature variation (Scheirer et al., 2006) and fluid chemistry (Von Damm and Lilley, 2004). The eruption site became a focus of the Ridge 2000 EPR Integrated Study Site (ISS) established to facilitate studies of the interaction of biological, geochemical, and/or physical processes associated with seafloor spreading. A second seafloor eruption …