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Articles 1 - 5 of 5
Full-Text Articles in Marine Biology
A Data Repository For Minimal Effects Of Oyster Aquaculture On Water Quality: Examples From Southern Chesapeake Bay, Jessica Turner, Grace M. Massey, M. Lisa Kellogg, Carl Friedrichs
A Data Repository For Minimal Effects Of Oyster Aquaculture On Water Quality: Examples From Southern Chesapeake Bay, Jessica Turner, Grace M. Massey, M. Lisa Kellogg, Carl Friedrichs
Data
The objective of this study was to quantify the effects of oyster aquaculture on water quality, sediment quality, and hydrodynamics at select sites in southern Chesapeake Bay. To this end, information was gathered over the course of approximately one year from February 2017 to October 2017 at four operating commercial farms. Farms were sampled during spring, summer, and fall seasons during times of oyster filtration activity when temperatures were greater than 10oC. Aquaculture sites differed in environmental setting, in terms of their exposure to waves and resulting sediment characteristics. Sites had mesohaline salinities (ranging from 15-22 psu) and …
Ecological Response Of Phytoplankton To The Oil Spills In The Oceans, Danling Tang, Jing Sun, Li Zhou, Sufen Wang, Ramesh P. Singh, Gang Pan
Ecological Response Of Phytoplankton To The Oil Spills In The Oceans, Danling Tang, Jing Sun, Li Zhou, Sufen Wang, Ramesh P. Singh, Gang Pan
Mathematics, Physics, and Computer Science Faculty Articles and Research
Oil spills in oceans have substantial influence on marine ecosystems. This study investigates 21 oil spills in the world. Analyzing Chlorophyll-a (Chl-a) from Moderate Resolution Imaging Spectroradiomerer (MODIS) data after Penglai oil spills on 4 June 2011, found a bloom with peak value of Chl-a (13.66 mg m−3) spread over an area of 800 km2 during 18–25 June 2011, and a pronounced increase in the monthly Chl-a concentration (6.40 mg m−3) on June 2012 in the Bohai Sea. Out of the 21 oil spills, 14 blooms were observed, while 11 …
Ctd Data Collected Onboard R/V Weatherbird Ii Cruise Wb-0717 In The Gulf Of Mexico From 2017-07-19 To 2017-07-30, Patrick Schwing
Ctd Data Collected Onboard R/V Weatherbird Ii Cruise Wb-0717 In The Gulf Of Mexico From 2017-07-19 To 2017-07-30, Patrick Schwing
C-IMAGE data
This dataset includes CTD and environmental data for nine stations collected onboard R/V Weatherbird II cruise WB-0717 in the Gulf of Mexico from 2017-07-19 to 2017-07-30. The dataset includes 16 profiles/casts of temperature, salinity, conductivity, chlorophyll-a and colored dissolved organic matter fluorescence, turbidity, oxygen saturation, sound velocity, altimetry and Photosynthetically Available Radiation (PAR). R/V Weatherbird II cruise WB-0717 was led by chief scientist Dr. Steve Murawski. The cruise objectives were to evaluate the extent of fish disease and to characterize the distribution and fate of oiled sediment at sites on the continental shelf and slope of the northern Gulf of …
Synergistic Use Of Remote Sensing And Modeling To Assess An Anomalously High Chlorophyll-A Event During Summer 2015 In The South Central Red Sea, Wenzhao Li, Hesham El-Askary, K. P. Manikandan, Mohamed A. Qurban, Michael J. Garay, Olga V. Kalishnikova
Synergistic Use Of Remote Sensing And Modeling To Assess An Anomalously High Chlorophyll-A Event During Summer 2015 In The South Central Red Sea, Wenzhao Li, Hesham El-Askary, K. P. Manikandan, Mohamed A. Qurban, Michael J. Garay, Olga V. Kalishnikova
Mathematics, Physics, and Computer Science Faculty Articles and Research
An anomalously high chlorophyll-a (Chl-a) event (>2 mg/m3) during June 2015 in the South Central Red Sea (17.5° to 22°N, 37° to 42°E) was observed using Moderate Resolution Imaging Spectroradiometer (MODIS) data from the Terra and Aqua satellite platforms. This differs from the low Chl-a values (<0.5 mg/m3) usually encountered over the same region during summertime. To assess this anomaly and possible causes, we used a wide range of oceanographical and meteorological datasets, including Chl-a concentrations, sea surface temperature (SST), sea surface height (SSH), mixed layer depth (MLD), ocean current velocity and aerosol optical depth (AOD) obtained from different sensors and models. Findings confirmed this anomalous behavior in the spatial domain using Hovmöller data analysis techniques, while a time series analysis addressed monthly and daily variability. Our analysis suggests that a combination of factors controlling nutrient supply contributed to the anomalous phytoplankton growth. These factors include horizontal transfer of upwelling water through eddy circulation and possible mineral fertilization from atmospheric dust deposition. Coral reefs might have provided extra nutrient supply, yet this is out of the scope of our analysis. We thought that dust deposition from a coastal dust jet event in late June, coinciding with the phytoplankton blooms in the area under investigation, might have also contributed as shown by our AOD findings. However, a lag cross correlation showed a two- month lag between strong dust outbreak and the high Chl-a anomaly. The high Chl-a concentration at the edge of the eddy emphasizes the importance of horizontal advection in fertilizing oligotrophic (nutrient poor) Red Sea waters.
Examining The Sensitivity Of Surface Chlorophyll To Upwelling Events Of Variable Frequency In The California Current System, John Thomas Bartlett
Examining The Sensitivity Of Surface Chlorophyll To Upwelling Events Of Variable Frequency In The California Current System, John Thomas Bartlett
Theses and Dissertations
Eastern Boundary Upwelling Systems (EBUS) spatially encompass approximately 1% of the ocean surface area, but are responsible for nearly 20% of global fisheries production. This significant biological production is primarily attributed to the nutrient-rich waters brought to the euphotic zone through a physical process called upwelling. In an attempt to understand the various physical and biological processes occurring on a wide range of temporal and spatial scales, the California Current System (CCS), one of the major EBUS, has been subject to a multitude of scientific studies over the past several decades. Recent modeling enhancements have enabled researchers to investigate mesoscale …