Patuxent Wildlife Research Center

NAAMP III Archive - accepted papers
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Sampling larval amphibians by bottletrap:
Development of activity trap system

Don Wik

Editorial note: The following paper is a summary of a device which may be useful in implementing aquatic amphibian monitoring programs. The bottletrap as presented has been used successfully in the development of a multimetric method for the biological evaluation of wetlands by Dr. Judy Helgen, Minnesota Reference Wetlands Project, Minnesota Pollution Control Agency. Results from 1995 studies are expected to be available in December 1996.

Details, photographs, a sample of the patent papers, and instructions for the use of the device were supplied by its inventor, Don Wik.

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U.S. Department of the Interior
U.S. Geological Survey
Patuxent Wildlife Research Center
Laurel, MD, USA 20708-4038
Contact: Sam Droege, email:
Last Modified: June 2002