Loading...
Please wait, while we are loading the content...
Similar Documents
Storm-Based Fluvial Inputs: Nutrient, Phytoplankton, and Carbon Dioxide Responses in a Tropical Embayment, Kane'ohe Bay, Hawai'i
| Content Provider | Semantic Scholar |
|---|---|
| Author | Drupp, Patrick Carlo, Eric Heinen De Mackenzie, Fred T. Bienfang, Paul |
| Copyright Year | 2010 |
| Abstract | This work describes use of a buoy system to monitor, autonomously, water quality responses to land-derived nutrient inputs and the physical forcings associated with local storm events. These data represent 2.5 years of near-real time observations at a fixed station, collected concurrently with spatially distributed synoptic sampling over larger sections of Kaneohe Bay. Nutrient loadings from direct rainfall and/or terrestrial runoff produce an immediate increase in the N:P ratio of bay waters up to 48, and drive phytoplankton biomass growth. Rapid uptake of nutrient input subsidies by phytoplankton causes a rapid decline of nitrogen levels, a return to N-limited conditions, and a subsequent decline of phytoplankton biomass over time scales ranging from a few days to several weeks, depending on the conditions and proximity to the sources of runoff. This work exemplifies the utility of combining synoptic sampling and real-time autonomous observations to elucidate the responses of coastal tropical coral reef systems to climatic perturbations over the array of time scales (hours to annual) on which they occur. Many subtropical and tropical systems throughout the Pacific Ocean are similar to Kaneohe Bay and our work provides an important indication of the variability and range of CO2 dynamics that are likely to exist elsewhere. Such variability must be taken into account in any analysis of the direction and magnitude of the air-sea CO2 exchange for the integrated coastal ocean, both proximal and distal. Finally, it cannot be overemphasized that our work illustrates several examples of how high frequency sampling provided by a moored autonomous system can provide details about ecosystem responses to stochastic atmospheric forcing, which are commonly missed by traditional synoptic observational approaches. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://www.soest.hawaii.edu/oceanography/masters/Drupp.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
