Assessing photoinduced toxicity of polycyclic aromatic hydrocarbons in an urbanized estuary (Page 1)

Assessing photoinduced toxicity of polycyclic aromatic hydrocarbons in an urbanized estuary

Vo M, Porter DE, Chandler GT, Kelsey RH, Walker SP, and Jones BE ·
2004

Increases in contaminants associated with urban sprawl are a particular concern in the rapidly developing coastal areas of the southeastern United States. Polycyclic aromatic hydrocarbons (PAHs) are contaminants associated with vehicle emissions and runofff from impervious surfaces. Increased vehicular traffic and more impervious surfaces lead to an increased loading of PAHs into coastal estuarine systems.


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Dynamic parameterization to simulate DIN export due to gypsy moth defoliation

Wang P, Linker LC, and Eshleman KN ·
2003

A module of dynamic parameterization is added into the HSPF watershed software for simulation of dissolved inorganic nitrogen (DIN) export from forest associated with gypsy moth defoliation. It simulates a changing ecosystem following the breakout of defoliation, such as increasing mineralization and nitrification rates and soil temperature, and decreasing interception of precipitation, plant nitrogen uptake rate and evapotranspiration.


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Photosynthetic responses of the coral Montipora digitata to cold temperature stress (Page 1)

Photosynthetic responses of the coral Montipora digitata to cold temperature stress

Saxby TA, Dennison WC, and Hoegh-Guldberg O ·
2003

Coral bleaching events have become more frequent and widespread, largely due to elevated sea surface temperatures. Global climate change could lead to increased variability of sea surface temperatures, through influences on climate systems, e.g. El Nino Southern Oscillation (ENSO). Field observations in 1999, following a strong ENSO, revealed that corals bleached in winter after unusually cold weather.


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Using multiple antibiotic resistance and land use characteristics to determine sources of fecal coliform bacterial pollutiion (Page 1)

Using multiple antibiotic resistance and land use characteristics to determine sources of fecal coliform bacterial pollutiion

Kelsey RH, Scott GI, Porter DE, Thompson B, and Webster L ·
2003

Multiple Antibiotic Resistance ( MAR) analysis and regression modeling techniques were used to identify surface water areas impacted by fecal pollution from human sources, and to determine the effects of land use on fecal pollution in Murrells Inlet, a small, urbanized, high-salinity estuary located between Myrtle Beach and Georgetown, South Carolina. MAR analysis was performed to identify areas in the estuary that are impacted by human-source fecal pollution.


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Spatial distribution of benthic microalgae on coral reefs determined by remote sensing (Page 1)

Spatial distribution of benthic microalgae on coral reefs determined by remote sensing

Roelfsema CM, Phinn SR, and Dennison WC ·
2002

Understanding the ecological role of benthic microalgae, a highly productive component of coral reef ecosystems, requires information on their spatial distribution. The spatial extent of benthic microalgae on Heron Reef (southern Great Barrier Reef, Australia) was mapped using data from the Landsat 5 Thematic Mapper sensor. integrated with field measurements of sediment chlorophyll concentration and reflectance. Field-measured sediment chlorophyll concentrations.


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Development of Indicators for Assessing and Monitoring Nutrient Influences in Coastal Waters (Page 1)

Development of Indicators for Assessing and Monitoring Nutrient Influences in Coastal Waters

Costanzo SD ·
2002

With increasing human pressures on coastal ecosystems, there is a need to develop better approaches to assess and monitor anthropogenic influences in these systems. The aims of this thesis were to a) develop indicators that describe and predict nutrient input effects, b) synthesise and interpret these indicators in assessment programs, and c) provide cost-effective methods for use in regular monitoring programs.


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Latitudinal comparisons of equatorial Pacific zooplankton

Roman MR, Dam HG, Le Borgne R, and Zhang X ·
2002

Zooplankton biomass and rates of ingestion, egestion and production in the equatorial Pacific Ocean along 140degreesW and 180degrees exhibit maximum values in the High-Nutrient Low-Chlorophyll (HNLC) zone associated with equatorial upwelling (5degreesS-5degreesN) as compared to the more oligotrophic regions to the north and south.


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