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Aquatic Toxicity Test Kit
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Carolina Shirt Pocket Water Test Kit
Aquatic Toxicity Test Kit
Daphnia - Look into Physiology
Great for physiology and toxicity studies
Heart and behavioral changes easy to see using a microscope
Excellent food source for hydra and small fish
Also known as the water flea because of its jerky hopping motions, this crustacean's transparent body and large ellipsoid heart make it ideal for physiological studies. Add light, change the temperature, expose it to nicotine or alcohol - and watch the effects on heart rate.
Daphnia
is also a good food source for young fish.
Using
Daphnia magna
as an assay organism, students determine the LC50 (lethal concentration 50: the percentage of a toxin in solution in which 50% of the assay organisms perish) for a number of environmental pollutants. These may include bleach, detergents, fertilizer, or pesticides.
Using the dilution scheme in the instructions, students make stock solutions of varying percentages of their chosen toxin prior to the arrival of
Daphnia
. Once the organisms arrive, they are placed into the different dilutions of the pollutants, with resulting mortality rates plotted to determine LC50, a parameter that is central to water quality and effluent testing.
Kit includes
Daphnia
culture and all other supplies except the pollutants, which are available locally. With detailed instructions.
Note:
Kit contains coupon for prepaid delivery of live materials; live materials can be delivered with kit upon request
.
Item #
Product
Qty
Price
142322
Aquatic Toxicity Test Kit
$47.50
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