Joseph P. Smith

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Technical Memoranda are used for documentation and timely communication of preliminary results, interim reports, or special-purpose information. Although the memoranda are not subject to complete formal review, they are expected to reflect sound professional work. ii NOTICE The National Marine Fisheries Service (NMFS) does not approve, recommend or endorse(More)
Moderate elevated vertical methane (CH 4) flux is associated with sediment accretion and raised fluid expulsion at the Hikurangi subduction margin, located along the northeast coast of New Zealand. This focused CH 4 flux contributes to the cycling of inorganic and organic carbon in solid phase sediment and pore water. Along a 7 km offshore transect across(More)
  • B K Carlisle, J D Baker, +24 authors Shannon Weigle
  • 2004
A publication of the Massachusetts Office of Coastal Zone Management (CZM). This project has been financed (in part) by the U.S. Environmental Protection Agency (EPA) under a 104(b)(3) grant, award CD991010; and (in part) by the National Oceanic and Atmospheric Administration (NOAA), awards NA07OZ0119 and NA17OZ1125. The views expressed herein are those of(More)
Araucaria bidwillii has cryptogeal germination, with seedlings not starting photosynthesis for several months after imbibition. Our results indicate that this complex process is metabolically relatively efficient. Araucaria bidwillii (bunya pine, Araucariaceae), an Australian rainforest conifer, produces heavy (15–20 g fresh mass) recalcitrant seeds that(More)
Lipid A is a fundamental Gram-negative outer membrane component and the essential element of lipopolysaccharide (endotoxin), a potent immunostimulatory molecule. This work describes the metabolic adaptation of the lipid A acyl structure by Psychrobacter cryohalolentis at various temperatures in its facultative psychrophilic growth range, as characterized by(More)
In June 2007 sediment cores were collected in Alaminos Canyon, Gulf of Mexico across a series of seismic data profiles indicating rapid transitions between the presence of methane hydrates and vertical gas flux. Vertical profiles of dissolved sulfate, chloride, calcium, magnesium, and dissolved inorganic carbon (DIC) concentrations in porewaters, headspace(More)
Coastal methane hydrate deposits are globally abundant. There is a need to understand the deep sediment sourced methane energy contribution to shallow sediment carbon relative to terrestrial sources and phytoplankton. Shallow sediment and porewater samples were collected from Atwater Valley, Texas-Louisiana Shelf, Gulf of Mexico near a seafloor mound(More)
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