PhD (Otago). Future Ocean and New Zealand Coralline Algae: Biological and Ecological Responses Under Elevated pCO2. Anna’s work is focused on crustose coralline algae (CCA) and the impacts of the expected changes in our oceans. Her work is centered around the CCA occurring within the East Otago Taiāpure. Combining information from ongoing pH-monitoring efforts in the Taiāpure and laboratory experiments, she tries to understand how CCA are going to be affected by increased carbon dioxide levels in the ocean. Studying the effects of increased carbon dioxide on these algae might help us to better understand implications for other organisms.
Lisa van Halderen
MSc (Otago). Investigating rāhui as a fisheries management tool. Lisa’s research looked at the practice of temporary closures on a fishery. Specifically, her research focused on a voluntary rāhui in Whareponga on the East Cape of the North Island, and a legal rāhui under s186B of the Fisheries Act 1996 in the East Otago Taiāpure. Lisa investigated whether either of these forms of management affirm the rights guaranteed under the Treaty of Waitangi by providing for rangatiratanga, and the authority to exercise kaitiakitanga. Her project aimed to identify a management method that provided for rangatiratanga, incorporated the values associated with kaitiakitanga, and was protected by law.
MSc (Otago) Undaria pinnatifidas threat in the changing ocean. Tim’s project looks at the relationship of Undaria pinnatifida and native New Zealand seaweed species under the effects of climate change. He hopes to provide a greater understanding of Undarias threat to native species through looking at Undarias invasion strategy into new locations and examining if Undaria is energetically and physiologically better suited to tolerating the increasing ocean temperatures, and the predicted low light periods that come with climate change.
MSc (Otago) Quantifying an invasive seaweed (Undaria Pinnatifida) using underwater videography. Will plans to develop a more efficient method of calculating the biomass of different species within seaweed assemblages. This will involve constructing an underwater filming setup to allow the filming of underwater transects as opposed to counting individuals on site. The aim is to allow studies to carry out a much larger number of transects in the same time period as freedivers will not be limited by nitrogen build up. In the process, he also hopes to quantify the invasion of Undaria pinnatifida in sites around Otago as well as look at the regeneration of both natives and Undaria once Undaria has been harvested.
PhD (Otago). Optimal sampling methods and control strategies for Undaria pinnatifida in New Zealand harbors. Gaby’s work expands on research of the invasive seaweed Undaria pinnatifida by comparing its distribution over time and across localities. She is utilizing ecological sampling methods concurrently with molecular studies to compare haplotypes, physiology, and chemistry in different harbors, exposures, and depths. She will connect this research with a control project in the East Otago Taiāpure to guide non-indigenous species management in a valued fishery and to provide insight on the effect of large-scale Undaria removalto native kelp assemblages. Her intentions are to understand which methods are best suited for assessing its diversity and to determine if there are factors that make it more likely to recover after removal. She hopes this will improve the ability to detect, manage, and monitor Undaria in the future.
PhD (Otago). Giant Kelp (Macrocystis pyrifera) as a biogenic engineer.
MSc (Otago) 2019. How robust is data gathered by citizen scientists for monitoring intertidal habitats?
Hang Thi Thuy Nguyen
PhD (Otago) 2019. The ecophysiology of coralline algae in Southern New Zealand.
MSc (Otago) 2019. Causes of coralline algae bleaching within the East Otago Taiāpure.
MSc (Otago) 2019. Using Esri Story Map ArcGIS to Support Community-led Natural Resource Management.
MSc (Otago) 2019. Bacterial production rates on macro-algal surfaces
BAppSc Hons (Otago) 2018. Key Habitat of the New Zealand Black Flounder and Sand Flounder within Estuaries
MSc (Otago) 2019. Expansion and Harvestability of Undaria pinnatifida throughout North Otago CPAs.
MSc (Otago) 2017. Eutrophication Environmental and biological characteristics of East Otago estuaries along a gradient of marine connectivity.
BSc Honours, 2011 (Otago). Impacts of sewage outfalls on local fishery health in the East Otago Taiāpure.
PhD, 2017 (Otago). Kelp forest response to light limitation.
MSc, 2016 (Otago). Environmental and biological factors associated with the recruitment and abundance of the scallop (Pecten novaezelandiae) in Te Whaka ā Te Wera (Paterson Inlet) Rakiura (Stewart Island).
MSc, 2016 (Otago). Dynamics of fecal indicators in estuarine environments after a rainfall event.
PhD, 2015 (Otago). Nitrogen use by the giant kelp Macrocystis pyrifera.
MSc, 2015 (Otago). The ecology of the scallop (Pecten novaezealandiae) in Te Whaka ā Te Wera (Paterson Inlet) Rakiura (Stewart Island).
MSc, 2015 (Otago). Integrated multi-trophic aquaculture (IMTA) trials in Big Glory Bay, Rakiura (Stewart Island).
MSc, 2014 (Otago). Pāua reseeding at East Otago taiāpure. A comparison of traditional vs. aquaculture approaches.
MSc, 2013 (Otago). Identifying critical nursery habitat for pāua juveniles in locations around New Zealand.
PhD, 2013 (Otago). Genetic tools to improve reseeding success of wild pāua fisheries.
MSc, 2013 (Otago). Reproductive output of pāua (Haliotis iris).
MSc, 2013 (Otago). Roles of predatory starfish (Astrostole scabra) in structuring marine communities exposed to different degrees of water motion.
MSc, 2013 (Otago). Exploring harvest regulations of New Zealand abalone (Haliotis iris) via population modelling.
BAppSci Honours, 2013 (Otago). Sustainability of a traditional harvest method for Karengo.
BAppSci Honours, 2011 (Otago). The effects of sedimentation on the growth and survival of juvenile Haliotis iris and their living habitat (crustose coralline algae).
MSc, 2010 (Otago). The fishery trend of the Littleneck Clam, Austrovenus stutchburyi, the filtering capacity, and phytoplankton flux within an East Otago Inlet.
MSc, 2009 (Otago). Subtidal rocky reef communities of the East Otago Taiāpure.
MSc, 2009 (Otago). Kelp forests: Crucial habitat for fish and invertebrates on the East Otago Coast.
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