New Zealand Journal of Marine and Freshwater Research abstracts
Distribution and abundance of coarse woody debris in some southern New Zealand streams from contrasting forest catchments
BRENT F. EVANS COLIN R.TOWNSEND TODD A. CROWL*
Department of Zoology University of Otago P. O. Box 56 Dunedin, New Zealand
*Present address: Department of Fisheries and Wildlife and the Ecology Center, Utah State University, Logan, Utah 84322-5210, U.S.A.
Abstract
Greater amounts of coarse woody debris (CWD) occurred in streams from old native forests than in streams from young native and pine forests in southern New Zealand. The size of CWD in the streams generally reflected the age of the surrounding vegetation. More wood was present in pool than in non-pool sections of old native forest streams and the frequency of pools per unit length formed by woody debris was greatest in these streams. The volumes of pools formed by wood and those formed by inorganic substrates were similar. Amounts of woody debris in these streams were relatively small compared to values recorded from North America.
Keywords New Zealand; coarse woody debris; stream structure; pool formation
New Zealand Journal of Marine and Freshwater Research, 1993: Vol. 27: The Royal Society of New Zealand 1993
Received 2 December 1992; accepted 30 March 1993
PDF file of entire paper: medium quality (1182K); (scanned from paper original: notes about this process)
This year's abstracts |
Journal home page |
All abstracts |
Publishing home page
