PROTOCOLS FOR MEASURING BIODIVERSITY:
Benthic Macroinvertebrates in Fresh Waters
by:
D.M. Rosenberg, I.J. Davies, D.G. Cobb, and A.P. Wiens
Department of Fisheries and Oceans, Freshwater Institute,
501 University Crescent, Winnipeg, Manitoba, R3T 2N6
TABLE OF CONTENTS
List of Figures
| Figure 1 | |
Sampling gear for lakes and streams.
a: Kick net;
b: Activity trap;
c: Ekman grab;
d: Sieve bag for Ekman samples;
e: Vertical tow net. |
| Figure 2 | |
Example of a typical catchment showing the drainage divide and stream-order analysis, using the Strahler (1964) system. Scale 1:50,000. ( From Newbury and Gaboury 1993. Reprinted by permission of Newbury Hydraulics, Gibsons, BC). |
| Figure 3 | |
Sketch of a sample stream reach indicating channel and floodplain characteristics. (From Newbury and Gaboury 1993. Reprinted by permission of Newbury Hydraulics, Gibsons, BC). |
| Figure 4 | |
Typical cross-section of a stream channel and floodplain. Bankfull stage is indicated. (From Newbury and Gaboury 1993. Reprinted by permission of Newbury Hydraulics, Gibsons, BC). |
| Figure 5 | |
Cumulative frequency (%) curve of bed paving material from two reaches of Wilson Creek, MB. The solid, horizontal lines indicate the % of bed paving material that will be stable at bankfull discharge (68% for Bald Hill Creek, BH; 24% for Wilson Creek, WC). These estimates are based on the relationship between erosive power and substrate material present in each reach. (From Newbury and Gaboury 1993. Reprinted by permission of Newbury Hydraulics, Gibsons, BC). |
| Figure 6 | |
The Marchant subsampling box. The scale is in centimeters and inches. (From Marchant 1989. Reprinted by permission of R. Marchant, Museum of Victoria, Abbotsford, Victoria, Australia). |
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