New Zealand Journal of Marine and Freshwater Research abstracts

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Notes on the submerged vegetation of Lake Hawea

J. CLAYTON
A. SCHWARZ
B. COFFEY

Ruakura Soil and Plant Research Station Ministry of Agriculture and Fisheries Private Bag, Hamilton New Zealand

Abstract The submerged vegetation of Lake Hawea, New Zealand, was impoverished compared with that of nearby Lake Wanaka. No vascular species were found and no vegetation was present over most of the depth range normally occupied by vascular hydrophytes. The exclusion of vascular hydrophytes was apparently associated with major water level fluctuations for hydro-electric power generation. A low diversity of charo-phytes and one bryophyte were recorded from Lake Hawea. Charophytes occupied a similar maximum depth, but a depressed minimum depth when compared to the equivalent community in Lake Wanaka.

Keywords water level fluctuation; Lake Hawea; submerged vegetation; charophytes

New Zealand Journal of Marine and Freshwater Research, 1986, Vol. 20: 185-189 Received 25 February 1985; accepted 25 September 1985

PDF file of entire paper: medium quality (279K); (scanned from paper original: notes about this process)

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