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Presentation Title: Weed Killer Impact on Brine Shrimp Discipline: Zoology School: Roosevelt High School; Seattle WA Abstract: Weed Killer Impact on Brine Shrimp Joseph James, Roosevelt High School

What is the dosage of weed killer needed to lethally impact brine shrimp? During this study, I intend to show a tremendous negative impact on brine shrimp survivability when Round Up weed killer is applied. I believe the brine shrimp will not survive as long in higher dosages. 1. brine shrimp 2. 2qt pitcher 3. heat lamp 4. pH level strips 5. kitchen thermometer 6. microscope 7. turkey baster 8. stopwatch 9. petri dishes 10. air pod/pump 11. 2 qt tap water 12. aquarium salt 13. syringe 14. filter 15. air tubing 16. weed killer (round up) a. Isopropylamine 18% b. Diquat dibromide 0.73% c. Other ingredients 83.2% Set up pitcher, air pod and tubing, measure out 2 qts. tap water from sink and pour into pitcher. Measure out 4 Tbs aquarium salt and add to pitcher. With heat lamp, warm water to 80-85 degree F, utilizing thermometer. Maintain water at 8.0 pH level, utilizing pH strips. Once proper temperature and pH have been reached, brine shrimp can be added and grown to testing stage. For this experiment, brine shrimp were grown for 84 hours, prior to testing. Observations were recorded with 0ml, 1ml, 3ml and 5ml dosages of round up, for each time trial. Results did not support my hypothesis. I stated that weed killer would have a negative impact however, results seemed opposite. Survivability increased with dosage.

Presenter: Joseph James Tribe: Yakama Primary Email: nekewyema@gmail.com Biography Joseph James is a student at Roosevelt High School, Seattle, Washington. He is currently enrolled in the University of Washington (Seattle) MESA Program.

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2011 National Conference Student Research Abstracts  
2011 National Conference Student Research Abstracts  

A comprehensive list of the student research topics that will be presented at the AISES 2011 National Conference

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