Improving Sample Collection and Time Series Analyses of Environmental Data in He‘eia Fishpond, O‘ahu, Hawai‘i, from 2007-2011
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2011
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Abstract
Since 2007, the He’eia Observatory Project, conducted under the supervision
of Kathleen Ruttenberg, Margaret McManus, and initiated by Charles Young, has
attempted to quantify the spatial and temporal variability of the chemical and physical
properties of He’eia Fishpond. This was accomplished by monthly characterization of
the surface and deep water column throughout the interior and exterior of the pond, as
well as through the continuous deployment of in-situ temperature and water level
sensors. As the project evolved, monthly sampling methods, routines, protocols, and
in-situ instrument deployment schemes have changed, at times causing interruptions
in data collection. This thesis project evaluated the suitability of previous deployment
strategies and found that they were not optimal. The efforts made to evaluate and
improve this strategy are documented in this undergraduate thesis.
In addition to improving the collection of data at He’eia Fishpond, archived
temperature data (2007 – 2010) were combined with data from 2010 – 2011 to create
temperature time-series plots of He’eia Fishpond. Coupled with spatial contour maps
and environmental time series plots, the seasonal temperature changes within He’eia
in the past four years were examined, with special attention given to the effects of the
El Niño/Southern Oscillation phenomenon.
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he'eia fishpond, estuarine ecosystem, physical oceanography, biochemistry
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145 pages
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