Slide 1 : Lorie Moffat
Cheltenham High School
Wyncote, PA
UMCES—Summer Research Fellow 2006 Examining the Impact of Toxin on Metabolic Rates of Rana Dr. Christopher Rowe
Chesapeake Biological Laboratory
Solomons, MD L. Moffat
Background : Background Amphibians are environmental health indicator species
Their life cycle has water dwelling and land dwelling components
Any toxins affecting either water or the land affects amphibians
Experimental Problem : Experimental Problem Purpose
Does vanadium (a toxic heavy metal) affect tadpole’s metabolism?
Procedure : Procedure
Measuring Metamorphs : Measuring Metamorphs
Tentative Experimental Results : Tentative Experimental Results Both vanadium treatments seem to limit tadpole growth rates based on biomass measurements for those receiving limited food.
Unlimited food groups and limited food groups have similar oxygen consumption rates, so the metabolism effects weren’t measured.
Classroom Applications : Classroom Applications Test tadpole growth rates based upon
Quantity of food
Different experimental groups receiving different amounts of food
Quality of food
Different experimental groups receiving different amounts of protein-based commercial tadpole food mixed with gel base
Conclusion : Conclusion Thank you to
Dr. Christopher Rowe, CBL
Jackie Takacs, CBL
National Oceanographic and Atmospheric Administration