Stream Pesticide and Nutrient Loads from Baseflow, Surface Runoff and Sediment Contributions on Tutuila Island, American Samoa

HENRIETTA DULAI
The goal of the project was to determine the contribution of baseflow, surface runoff, and sediments to pollutant fluxes in Faga’alu watershed in Tutuila, American Samoa. The work utilized a watershed model (SWAT) and a groundwater model (MODFLOW) in combination with pesticide, nutrient, and sediment measurements.

Biomonitoring of the Marine Communities Near the City’s Ocean Sewage Outfalls off O’ahu, Hawai’i

SPONSOR:City and County of Honolulu PROJECT PERIOD:2013 ABSTRACT:A survey of the capitellids from the Hawaiian Islands has yielded 16 species in seven genera, most represent new records and two species are newly described, Notodasus dasybranchoides sp. nov. and Scyphoproctus edmondsoni sp. nov. The species Capitella…

Estimating Evapotranspiration Over Native Wet Montane Cloud Forests in Hawaii and Evaluating the Impact of Climate Change on it

SPONSOR: National Institute for Water Resources, Water Resources Research Institute Program PROJECT PERIOD: 03/01/2014-02/29/2015 ABSTRACT: Sensible and latent heat fluxes are the key variables in energy and water vapor exchange between the land surface and the atmosphere. Latent heat flux…

Temporal and spatial effects of sewage outfalls on the ecosystem health of coastal waters offshore of Honolulu

SPONSOR:National Institute for Water Resources, Water Resources Research Institute Program PROJECT PERIOD:03/01/2014-02/29/2016 ABSTRACT: The Sand Island Wastewater Treatment Plant and the Honouliuli Wastewater Treatment Plant are primary treatment systems that treat effluents to be discharged a few kilometers offshore of…

Building a polychaete species database for water management purposes in American Samoa

SPONSOR: National Institute for Water Resources, Water Resources Research Institute Program PROJECT PERIOD: 03/01/2014-02/28/2015 ABSTRACT: The biodiversity of marine invertebrates from the American Samoa has been poorly characterized. Most of the efforts are concentrated on studying the coral reefs, which…

Evaluation of Portable Multi-use Automated Concentration System (PMACS) for the analysis of indicator bacteria and microbial source tracking markers in Hawaii

SPONSOR: National Institute for Water Resources, Water Resources Research Institute Program PROJECT PERIOD: 03/01/2014-02/29/2016 ABSTRACT: Problem and Research Objectives Problem I: Distribution of microorganisms in beach water and sand is patchy. It is well established that distribution of microbes in…

Managing for Multiple Ecosystem Services with Changing Land Use in West Maui

SPONSOR: National Institute for Water Resources, Water Resources Research Institute Program PROJECT PERIOD: 03/01/2014-02/28/2015 ABSTRACT: Coastal water quality is an integral part of the Hawaiian landscape and economy, affecting both coral ecosystem health and visitor satisfaction. Hawaii’s coastal water supports…

Identifying future hotspots for algal blooms: A multi-dimensional analysis evaluating impacts of potential land-based sources of pollution on the health of American Samoa’s coasts

SPONSOR:National Institute for Water Resources, Water Resources Research Institute Program PROJECT PERIOD:3/1/2015 – 2/28/2016 ABSTRACT:Land-based sources of pollution (LBSP) drive coastal algal blooms, growth of opportunistic seaweeds that can persist for years and in many parts of the world. In…

Rainwater Harvesting in American Samoa: Current Practices and Health Risks

SPONSOR:National Institute for Water Resources, Water Resources Research Institute Program PROJECT PERIOD:3/1/2015 – 2/28/2016 ABSTRACT:Island ecosystems have low buffering capacity, hence are highly vulnerable to change. Shifts in rainfall and temperature driven by climate change can compromise available water supply…

Influence of Anthropogenic and Climatic Forcing on Water Quality Within a Tropical Coastal Ecosystem

SPONSOR:National Institute for Water Resources, Water Resources Research Institute Program PROJECT PERIOD:3/1/2015 – 2/28/2017 ABSTRACT:The overarching goal of this work is to understand how microbial community structure and function in tropical coastal estuaries drive geochemical processes in response to climate…

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