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Environmental Factors Correlated With Culturable Enterococci Concentrations In Tropical Recreational Waters: A Case Study In Escambron Beach, San Juan, Puerto Rico, A. E. Laureano-Rosario, E. M. Symonds, Digna Rueda-Roa, Daniel B. Otis, Frank E. Muller-Karger
Environmental Factors Correlated With Culturable Enterococci Concentrations In Tropical Recreational Waters: A Case Study In Escambron Beach, San Juan, Puerto Rico, A. E. Laureano-Rosario, E. M. Symonds, Digna Rueda-Roa, Daniel B. Otis, Frank E. Muller-Karger
Marine Science Faculty Publications
Enterococci concentration variability at Escambron Beach, San Juan, Puerto Rico, was examined in the context of environmental conditions observed during 2005–2015. Satellite-derived sea surface temperature (SST), turbidity, direct normal irradiance, and dew point were combined with local precipitation, winds, and mean sea level (MSL) observations in a stepwise multiple regression analyses (Akaike Information Criteria model selection). Precipitation, MSL, irradiance, SST, and turbidity explained 20% of the variation in observed enterococci concentrations based upon these analyses. Changes in these parameters preceded increases in enterococci concentrations by 24 h up to 11 days, particularly during positive anomalies of turbidity, SST, and 480–960 …
Floating Algae Blooms In The East China Sea, Lin Qi, Chuanmin Hu, Mengqiu Wang, Shaoling Shang, Cara Wilson
Floating Algae Blooms In The East China Sea, Lin Qi, Chuanmin Hu, Mengqiu Wang, Shaoling Shang, Cara Wilson
Marine Science Faculty Publications
A floating algae bloom in the East China Sea was observed in Moderate Resolution Imaging Spectroradiometer (MODIS) imagery in May 2017. Using satellite imagery from MODIS, Visible Infrared Imaging Radiometer Suite, Geostationary Ocean Color Imager, and Ocean Land Imager, and combined with numerical particle tracing experiments and laboratory experiments, we examined the history of this bloom as well as similar blooms in previous years and attempted to trace the bloom source and identify the algae type. Results suggest that one bloom origin is offshore Zhejiang coast where algae slicks have appeared in satellite imagery almost every February–March since 2012. Following …
Remote Estimation Of Biomass Of Ulva Prolifera Macroalgae In The Yellow Sea, Lianbo Hu, Chuanmin Hu, He Ming-Xia
Remote Estimation Of Biomass Of Ulva Prolifera Macroalgae In The Yellow Sea, Lianbo Hu, Chuanmin Hu, He Ming-Xia
Marine Science Faculty Publications
Since 2008, macroalgal blooms of Ulva prolifera (also called green tides) occurred every summer in the Yellow Sea (YS), causing environmental and economic problems. A number of studies have used satellite observations to estimate the severity of the blooms through estimating the bloom size and duration. However, a critical bloom parameter, namely biomass, has never been objectively determined due to lack of measurements. In this study, laboratory experiments were conducted to measure U. prolifera biomass (wet weight) per unit area and the corresponding spectral reflectance, through which a robust relationship has been established to link biomass per area to …