Lake Rotorua (Canterbury)
A 2010 report showed that Lake Rotorua had the second highest trophic level index, an indication of pollutant levels, of all the lakes that were measured. Topdressing, shags and willow trees contributed to the high levels of pollution. 29 species of green algae were identified. The lake was fenced to keep cattle away from it and there were conflicting reports on pollution levels in 2022. A wildlife reserve surrounds the lake, with birds including riroriro, toutouwai, pīpipi, pīwakawaka, korimako, tītitipounamu, kāruhiruhi, kuruwhengi, tētē, pūtangitangi, pūteketeke, mallard and Canada geese.
The lake was formed by greywacke shingle in the Kahutara River building up to block the mouth of a former tributary.
See also
References
- ^ Bradley, Barry (1999). The Penguin New Zealand Atlas. Penguin (NZ). ISBN 0-14-028914-3.
- ^ Verburg, P.; Hamill, K.; Unwin, M.; Abell, J. (August 2010). Lake water quality in New Zealand 2010: Status and trends (PDF). Hamilton: National Institute of Water & Atmospheric Research Ltd.
- ^ V.M. Stout (1985). "The ecology of three small lakes near Kaikoura". Department of Zoology, University of Canterbury.
- ^ "Farmer sets tuna hinaki in lake after getting rid of algae". RNZ. 28 October 2022. Retrieved 10 March 2024.
- ^ "Lake Rotorua Water Quality". Land, Air, Water Aotearoa (LAWA). 2022. Retrieved 10 March 2024.
- ^ "Waterways in Kaikōura". Environment Canterbury. Retrieved 10 March 2024.
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