Field Materials
-D-frame net
-collection bottle
-tweezers
-hip waders

Procedure
1- Collect scuds from sites with an aquatic D-frame net.
2- Deposit organisms in enamel trays for field separation.
3- Store organisms in a jar with stream water -no alcohol- this will render the proteins useless.
4- Return to the lab, key out selected amphipod specimens to the species level using the keys in Fresh-Water Invertebrates of The United States, 3rd Edition.
5- Immediately after identification begin the extraction procedure.