Record Details
Stoichiometry of C, N, P, and Si fluxes in a temperate-climate embayment
ScholarsArchive at Oregon State University
| Field | Value |
|---|---|
| Title | Stoichiometry of C, N, P, and Si fluxes in a temperate-climate embayment |
| Names |
Smith, S. V.
(creator) Wiebe, W. J. (creator) Hollibaugh, J. T. (creator) Dollar, S. J. (creator) Hager, S. W. (creator) Cole, B. E. (creator) Tribble, G. W. (creator) Wheeler, Patricia A. (creator) |
| Date Issued | 1987 (iso8601) |
| Abstract | Dissolved C, N, P, and Si budgets for Tomales Bay, California, have been used to solve simultaneous stoichiometric equations which describe a plausible material balance for net organic matter reactions in the bay. Dissolved Si and P were both exported hydrographically. Dissolved C and fixed N were imported hydrographically. If we assume that C, N, P, and Si were supplied to the bay as organic detritus and remineralized at a rate required to balance dissolved Si and P exports, we can calculate reasonable rates of denitrification and CO2 gas evasion across the air-water interface. The system is thus interpreted to have been net heterotrophic at the time of our investigation. Fluxes attributed to individual components in the system (benthic respiration, water-column material turnover, biochemical transformations between fixed and gaseous N) were of sufficient magnitude to account for the system-wide net fluxes, although too noisy to allow piecewise derivation of net system fluxes. Denitrification and limitation of primary production by dissolved fixed N in aquatic ecosystems may be symptoms of other system-scale constraints on net C metabolism, rather than themselves being system-level controls of net C metabolism. |
| Genre | Article |
| Identifier | Journal of Marine Research, 45, 427-460, 1987. |
