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| A green harmful algae bloom in Florida's IRL. |
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| Map of the Indian River Lagoon showing the five main segments, 20 sample sites and four reference sites. |
The IRL watershed is massive and populated by nearly 1.7 million people. Rainfall events cause episodic discharges of groundwater contaminated with septic tank effluent into nearshore waters, enhancing eutrophication. Nutrient Pollution is a primary driver of eutrophication and harmful algae blooms in estuaries and coastal waters worldwide. In 2011-2012, sites evenly distributed throughout the 251-km long Indian River Lagoon (IRL) were assessed during three sampling events of dissolved for dissolved nutrients(DIN,SRP,TDN,TDP) and chlorophyll a. Sea water samples were collected at 20 fixed sites in the IRL. Each site sampled three different times within a two year period. Nitrogen was found in high concentration through the IRL especially in northern parts(Volusia County's IRL). Associated with high Nitrogen concentrations a were harmful algae blooms. As discussed in Nutrients and the Indian River Lagoon, more action needs to be taken in monitoring a specific point source, discharging into the IRL. This being said leads to my Independent Research Project (IRP), Monitoring water quality within the Canal Street Canal. For information on what is already known about this canal area as well as the water quality within read Measuring Water Quality Parameters. My site was chosen beginning with the founding of hypoxic water conditions monitored in this canal by colleagues, Dr. Woodall as well as myself (noting this area is associated with a storm drain system). The discharge basin (5x8 box culvert) runs South starting at the northern part of Canal street collecting approximately 170.6 acres of runoff. In order to set up experiments to measure the water quality within the canal there are commonly used tools and methods such as; YSI85(measuring dissolved Oxygen, Conductivity and Salinity), Van Dorn(to take surface and depth samples within the Canal), HACH DR/980 colorimeter(for nutrients and copper concentrations).
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Measuring chlorophyll in the lab using 90% Acetone,47mm filters and of course the
Fisher Scientific Filtration Device.
Citations:
(1) (K Fegley, City Engineer of New Smyrna Beach, September 2015)
(2) Anderson, Sean. Sewage Pollution running amuck in Florida's Indian River Lagoon. Retrieved from http://oceanbites.org/sewage-pollution-running-amuck-in-floridas-indian-river-lagoon/































