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Original Paper
Adaptations of an Emergence Trap for Use in Tropical Streams
Article first published online: 27 AUG 2004
DOI: 10.1002/iroh.200310709
Copyright © 2004 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
1522-2632/asset/cover.gif?v=1&s=171ee7e8e039831a227c55d37c5e56fd5c8015c8 "International Review of Hydrobiology")
Additional Information
How to Cite
Freitag, H. (2004), Adaptations of an Emergence Trap for Use in Tropical Streams. International Review of Hydrobiology, 89: 363–374. doi: 10.1002/iroh.200310709
Publication History
- Issue published online: 27 AUG 2004
- Article first published online: 27 AUG 2004
- Manuscript Accepted: 2 JUN 2004
- Manuscript Revised: 15 MAY 2004
- Manuscript Received: 12 SEP 2003
- Abstract
- References
- Cited By
Keywords:
- aquatic insects;
- macroinvertebrates;
- ecological method;
- collection technique;
- biodiversity study
Abstract
An emergence trap based on the MPI Schlitz model was designed for use in the tropics and it was tested over one year in Palawan, the Philippines. Instructions for construction and use are given here. Only commonly available materials were used, except for the collection assembly made of UV-light permeable acrylic glass. Heavy and bulky assemblies were avoided to enable easy transportation in the field. A special modification allows a fast and easy replacement of the screen when damaged by flooding, as is often required when traps are used downstream of headwaters. This type of trap also allows sampling of a wide littoral strip. Problems concerning the use of emergence traps in the humid tropics are discussed based on experience at different longitudinal stream sections in Palawan. The results presented here suggest that this trap should be used especially for qualitative or semi-quantitative approaches. (© 2004 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)