Effect of artificial freshes in experimental channels on benthic macroinvertebrate density and drift and on quinnat salmon growth / by M.J. Rutledge, J.P. Graybill, J.F. Kilpatrick, J.R.M. Kelso.
By: Rutledge, M. J.
Contributor(s): Graybill, J. P | Kilpatrick, J. F | Kelso, J. R. M | National Institute of Water and Atmospheric Research (N.Z.). Freshwater Division
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Series: New Zealand freshwater research report: no. 1Publisher: Christchurch, N.Z. : Freshwater Division, NIWAR, 1992Description: 25 pages : illustrations ; 30 cm.Subject(s): FRESHES | CHANNELS | BENTHOS | MACROINVERTEBRATES | QUINNAT SALMON | ONCORHYNCHUS TSHAWYTSCHA | GROWTH | FOOD | FLOW REGIMES | FRESH WATER | FISHERIES | NEW ZEALANDOnline resources: NIWA document server
In:
New Zealand freshwater research reportSummary: The effects of different frequencies of artifical freshes on benthic macroinvertebrate density, macroinvertebrate drift and quinnat salmon growth was examined in five experimental channels. There were different experimental flow regimes for each channel. The conclusion was that fresh occurring at fortnightly intervals resulted in the highest macroinvertebrate density, high drift density and no reduction in the growth of juvenile quinnat salmon.
| Item type | Current library | Call number | Copy number | Status | Date due | Barcode | |
|---|---|---|---|---|---|---|---|
JOURNAL
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WELLINGTON JOURNALS | NO. 1 1992 | 1 | Available | J04490 |
"December 1992."
"Report to: Electricorp."
"Edited by C.K. Holmes."
7 figures; 3 tables; 2 appendices.
Includes 17 bibliographical references (page 19)
The effects of different frequencies of artifical freshes on benthic macroinvertebrate density, macroinvertebrate drift and quinnat salmon growth was examined in five experimental channels. There were different experimental flow regimes for each channel. The conclusion was that fresh occurring at fortnightly intervals resulted in the highest macroinvertebrate density, high drift density and no reduction in the growth of juvenile quinnat salmon.
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