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Filtering by: Subject Water--Dissolved oxygen Degree Field Oceanography

Dynamics of organic matter production and degradation during coastal diatom blooms

Creator:

Wetz, Michael S.

Abstract:

Experiments were designed to answer key questions about diatom-derived organic matter cycling (i.e., production and degradation) in coastal systems. Dissolved organic matter (DOM) production was examined in axenic batch cultures of five diatom species. Dissolved organic carbon (DOC) release rates varied between species, but were significantly higher for all species...

Resource Type:

Dissertation

Full Text:

. Finally, because of its lability, the POC will contribute to shelf bottom water oxygen utilization as it
Influence of upwelling-season coastal currents on near-bottom dissolved oxygen concentrations over a submarine bank

Creator:

Adams, Katherine A.

Abstract:

Wind-driven coastal upwelling brings subsurface water onto the central-Oregon shelf after the spring transition each year. This cold and salty source water is oxygen-poor, yet above the hypoxic threshold, dissolved oxygen < 1.4 ml l⁻¹. Once on the shelf, dissolved oxygen (DO) concentrations of upwelled near-bottom waters are modified by...

Resource Type:

Dissertation

Full Text:

water column where microbial respiration consumes dissolved oxygen (DO). Near-bottom DO concentrations