New Zealand Journal of Marine and Freshwater Research abstracts

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ULTRAPHYTOPLANKTON BIOMASS AND PRODUCTION IN SOME NEW ZEALAND LAKES

Hans W. Paerl

Freshwater Section, Ecology Division, DSIR, P.O. Box 415, Taupo, New Zealand

Abstract The lakes sampled in 1975-76 were Rotongaio, Rotorua, Tarawera, and Taupo (North Island); Brunncr, Johnson, Kangaroo, Ohau, Pukaki, Rotoiti, and Waka-tipu (South Island). In general, oligotrophic and mesotrophic lakes contain most ultraplankton, forming 11-35% of the biomass and 33-76% of the primary productivity. In both New Zealand and North America the importance of ultraplankton seems grossly underestimated, probably because it normally escapes detection in standard Utermohl and direct nitration examinations.

N.Z. Journal of Marine and Freshwater Research 11 (2) : 297-305. June 1977
Received 9 June 1976; revision received 18 October 1976.

PDF file of entire paper: medium quality (1550K); (scanned from paper original: notes about this process)

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