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New Zealand Limnological Society Newsletter No. 39 November 2004

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New Zealand Limnological Society Newsletter No. 39 November 2004 1 New Zealand Limnological Society Newsletter No. 39 November 2004 Contents Page President’s message………………………………………..2 Research notes…………………………………………………..3 SIL 1987 Trust report (Susie Woods)………………………….33 Student prizes: conference 2003……………………………….35 Minutes 36 th AGM……………………………………………..36 Limnological publications and theses………………………….44 Membership list………………………………………………..63 Addenda: membership form; Freshwaters of NZ book order form; financial statements ………………………...81 The New Zealand Limnological Society was formed at a meeting in Christchurch in January 1968. Its fundamental aims since inception have been to promote a common meeting ground for freshwater workers in New Zealand and to encourage and promote the exchange of news and views among them. In particular, a newsletter and a list of research workers and their interests is compiled and circulated at least once per year and an annual conference is held. The 2004 subscription is $40.00 per annum (student/unwaged/retired persons rate is $10.00 per annum; life membership is $1000.00). The committee for 2002-2004 is: President : Neil Deans Nelson-Marlborough Fish and Game, P.O. Box 2173, Stoke, Nelson. Email: [email protected] Secretary-Treasurer : Dr Brian Sorrell, NIWA, P.O. Box 8602, Christchurch. Email: [email protected] Committee members Dr Jon Harding (immediate past president), School of Biological Sciences, University of Canterbury, Private Bag 4800, Christchurch. Email: [email protected] John Maxted, Auckland Regional Council, 21 Pitt Street, Auckland. Email: [email protected] Dr Ian Boothroyd, Kingett Mitchell Ltd, P.O. Box 33 849, Takapuna, Auckland. Email: [email protected] Newsletter editor Professor Mike Winterbourn, School of Biological Sciences, University of Canterbury, Private Bag 4800, Christchurch. Email: [email protected] Website manager Dr Stephanie Parkyn, NIWA, P.O. Box 11-115, Hamilton Email: s.parkyn@ niwa.cri.nz Website: www.rsnz.govt.nz/clan/limsoc 2 Mr President says… The Executive have had a busy year with a variety of matters to consider and action on your behalf. You should by now have received and returned your views on the proposed "trading" name change. If not, please do so as soon as possible, if you would like your views to be considered. The results of this non- binding survey of the membership will be discussed at the AGM at the conference in Auckland. For those unable to attend who have views they would like represented, proxy votes can be cast. Brian Sorrell, our hardworking Secretary/Treasurer, has also reminded me to ensure you remember to pay your subs which you should have received about a month ago. The Society has done well this year in its publications. Efforts led by David Speirs and with support from Environment Waikato have resulted in the two posters on native freshwater fish and invertebrates being printed and distributed to schools. Then, due to popular demand and with support from the Department of Conservation, the posters were reprinted again this year. It has been suggested that other posters on freshwater plants might be appropriate, so assistance for this from members would be appreciated. The major achievement of the year is the joint publication of ‘Freshwaters of New Zealand’, by the Limnological and Hydrological Societies. This represents the state of the art of the freshwater science community in this country and is a ‘must have’ reference for all of us working in the field, from students to consultants. Special mention must be made of the efforts of the 4 editors, Jon Harding and Brian Sorrell from our Society and Paul Mosley and Charles Pearson for the Hydrological Society. They have managed to coordinate the efforts of dozens of authors to produce an up to date but readable account of the country’s freshwaters. It is a credit to the many authors that they have been able to make their contributions at no cost to the societies, which makes the purchase price of $69.95 plus postage and packing incredibly good value. Please make sure that after you obtain your copy that you extol the virtues of this reference to the wider community. There are many people out there who would appreciate knowing about this book. Executive members and office holders of the Society come up for election again this year, so anyone wishing to make a contribution to the Society is encouraged to advise the current Executive and stand for office. We all look forward to the conference at the end of November, which will this year be on Waiheke Island. Many thanks to John Maxted, Ian Boothroyd and their team for putting this together for us. I look forward to seeing you there. Neil Deans President:5 October 2004 3 Research news Universities University of Auckland School of Geography and Environmental Science Ian Boothroyd is a part-time Senior Lecturer responsible for leading teaching and research in freshwater ecology and resource management. His research interests at the University include chironomid taxonomy, macroinvertebrate grazing of biofilms, geothermal ecosystems and the impacts of mining and management responses to it on stream ecology. See news on Kingett Mitchell Ltd. for further information. Graham Surrey is writing up his research on the effectiveness of the pressure-state-response model for environmental monitoring based on restoration initiatives in Waitakere City. Prajina Baisyet has commenced her investigation into the effects of a new city development in East Tamaki, focusing on Otara Creek and the perceptions of the environment by local multi-ethnic communities. Jessica Pacalioga is in the final stages of her field work on the rate and influence of decay of mangrove leaves in established and newly formed mangrove forests. Dativa Shilla is investigating the effects of land use on macroinvertebrate communities in East Tamaki, Auckland. Erica Colley and Sylvia Hay are both planning to research biofilm grazing by invertebrates in local streams and laboratory mesocosms. Daniel Gulliver will be undertaking a study of the ecology of streams in North Auckland in relation to landuse and urbanisation pressures, while Liza Inglis will be exploring the application of various stream classification methodologies in the Auckland region. University of Waikato Centre for Biodiversity and Ecology Research Ann Chapman has been working on her collections of epigean amphipods in the genus Paraleptamphopus and has found a number of new species, now being described. Her morphological studies parallel the genetic analyses of Darin Sutherland . A revision of the epigean species of Phreatogammarus has been completed. Ian Duggan has returned from Canada and taken up a position as Lecturer/Pukenga in Biological Sciences. He intends to continue research on invasion biology with an emphasis on freshwaters. This is a continuation of his Canadian work where he undertook research regarding the role of transoceanic shipping, the aquarium trade and live fish markets as invasion pathways to the Great Lakes. He also hasn’t forgotten about the much neglected zooplankton, and will continue this work, particularly on diapausing stages and egg banks. Sheree Balvert has begun work on an MSc thesis investigating the limnology, including zooplankton colonisation and dynamics, of Weavers Lake, a newly filled lake that was formerly an open-cast coal mine in Huntly. Beth Fowler is doing an MSc thesis investigating water quality management problems and zooplankton ecology in the Hamilton Zoo ponds. 4 David Hamilton gave a paper on ‘Climatic shifts and water quality responses in North Island lakes’ at the recent SIL Congress in Finland. He has been kept busy on eutrophication issues in the Rotorua lakes, as well as generating a report for the MfE on the proposed nitrogen load reduction in Lake Taupo. David Burger continues with his PhD study on Lake Rotorua and his field work has concluded. Sediment nutrient release rates during stratification were determined using a mass balance approach and results validated using in-situ benthic chambers. He recently presented his findings at the SIL Congress in Finland and at the University of Amsterdam, and took the opportunity to visit UNESCO-Delft. Eloise Ryan is writing the final papers of her PhD and is due to finish early in 2005. She also attended SIL in Finland and gave talks on the ‘Deep Chlorophyll Maximum’ at the University of California, Santa Barbara and Trout-Lake Research Station at the University of Wisconsin. Amanda Baldwin and Nina Von Westernhagen are now fully immersed in field work on the Rotorua lakes. Amanda is examining sedimentation and buoyancy of phytoplankton in Lake Tarawera, whereas Nina is focusing on eutrophication processes in Lake Rotoiti. New Masters students include Wendy Paul , who will examine the nitrogen cycle of eutrophic Rotorua lakes and Manu Edwards , who will look at the history of sedimentation in Rotorua lakes. Master student Rossana Untaru is currently analysing chemistry of sediment cores taken during one year of sampling Lake Rotoiti. Brendan Hicks and Chris McBride attended the 4th International Conference on Applications of Stable Isotope Techniques to Ecological Studies in Wellington from 19-23 April 2004. Brendan presented his work done in collaboration with the University of Alaska Fairbanks and US Forest Service on the contribution of marine-derived nutrients to coastal Alaskan streams by spawning coho salmon. Chris presented his MSc research on stable isotopes in food webs and trophic state of the Rotorua lakes. David Klee will continue this work for his MSc. Brendan's electrofishing boat is proving very effective at catching koi carp for Matt Osborne's MSc tagging project. Mark Willoughby will investigate the isolation and use of koi carp pheromones as an attractant to improve fish capture. Dave West continues his PhD study on indicators of fish health, and Brenda Baillie of Forest Research in Rotorua has started her PhD on the ecology of streams in plantation forests, funded by a Bright Futures scholarship.
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