Submerged Aquatic Vegetation Lottie Nolan Aaron Baker Eduardo Santos Tristan Bonds
Problem Statement Submerged aquatic vegetation (SAV) is diminishing due to human activity. What are some suggestions on how to help restore the SAV?
What is S.A.V? Submerged Aquatic Vegetation: Vascular plants that live and grow completely underwater or just above the waters surface when they are flowering.
Environmental Parameters for SAV found in Oligohaline Sounds and Estuaries of North Carolina (Ferguson and Wood 1994)
Common SAV Plants Stuckenia pectinata Sago pondweed Myriophyllum spicatum Eurasian watermilfoil (invasive) Najas guadalupensis Southern naiad
Common plants we identified… Ruppia martima Widgeon grass Chara Muskgrass
What is turbidity? • "Turbidity is the cloudiness or haziness of a fluid caused by individual particles (suspended solids) that are generally invisible to the naked eye, similar to smoke in air."
Hypothesis Human activity causes damage and/or death to many different species of SAV. In the future, human activity if left unchanged will cause the extinction of many SAV species.
What we know... • SAV is Submerged Aquatic Vegetation • SAV is partially submerged in water if not fully submerged • SAV is an important habitat to under water animals • Its distribution and abundance is rapidly decreasing due to human activity
Invasive plant that we identified • Myriophyllum spicatum- Eurasian watermilfoil
How SAV is being affected. TURBIDITY
Water quality Turbidity How is the decline of SAV affecting the water?
Chesapeake Bay Ecosystem, which is almost identical to that of Currituck Sound Shelter Erosion control Algae control Why is SAV important?
Food Shelter Cleans Why is it important to fisheries and wild life?
Boating Pesticides Runoff How are humans affecting the SAV?
Common SAV Plants in Oligohaline Sounds and Estuariesin North Carolina • Ruppiamaritima-widgeon grass • Myriophyllum spicatum-Eurasian watermilfoil • Ceratophyllumdemersum-coon tail • Najasguadalupensis-southern naiad • Potamogetonperfoliatus-redhead • Vallisneriaamericana-wild celery • Stuckenia pectinata-sago pondweed Oligohaline- salinity between 0.5ppt to 5.0ppt
Desired levels • pH-the desired levels for pH is 6.5 to 8.2 • D.O-the desired levels of dissolved oxygen is 5-6ppm • definition of pH- • A measure of the acidity or alkalinity of a solution, if it equals seven that means its neutral, • Salinity between .5 and 18ppt
What we found.. ECSU 03- pH-7.8 Salinity 4.8 ECSU- 04 pH-7.21 Salinity 0.41 CS05- pH-7.84 Salinity 6.96 PR 02- pH-6.71 Salinity 3.08 DS01- pH(s)-5.64 pH(b)-14.63 Salinity 0.06
Off limit areas Suggestions to reduce the decline SAV..
How is water SAV important to water fowl? • Food • Migrating water fowl search the sediment for nutritious seeds, roots, and tubers that help fuel there journey • Shelter
Reflections • In the beginning of this workshop we were lectured and given straight up information, and while this was useful it wasn’t until we were put into our groups that we really started to learn this for ourselves, no longer where the answers just handed to us on a silver platter, we learned to work to each others strengths, and strengthen each others weaknesses. As a group we finished this project at a much higher level than any of us could have done alone.
Acknowledgements • We would like to thank all of the Burroughs Wellcome staff for their time and effort to make us better individuals in the science field and we would like to thank our teachers for giving us this opportunity. Sincerely, The SAV Group.
citations • hurley, linda. field guide to the submerged aquatic vegetation of Chesapeake bay. 1 annapolis: U.S. fish and wildlife service, unkown • “seagrass.” Virginia DEQ. 1 September 2006. Virginia coastal zone management program. 26 jun 2008 <http://www.deq.virginia.gov/coastal/seagrass.html>.