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Microorganisms from surface sediment of Southland lakes

Congratulations to John Pearman (Cawthron) and co-authors for their paper “Local factors drive bacterial and microeukaryotic community composition in lake surface sediment collected across an altitudinal gradient,” which was published in FEMS Microbiology Ecology.

The manuscript investigates microorganisms that live in the surface sediment of lakes in the Southland region. It draws on the analysis of DNA from surface sediment samples collected from 40 lakes along an altitude gradient (2–1,200 m). The study identified a diverse range of microbes and showed that each lake has a unique community. Local environmental conditions such as nutrients were more important than altitude in explaining why the communities differed between lakes.

See the abstract here

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Congratulations Jamie Howarth

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New manuscript on Rototoa (Auckland)

New manuscript on Lake Rototoa in Auckland has bee New manuscript on Lake Rototoa in Auckland has been published!!

A new manuscript titled - Resolving 500 years of anthropogenic impacts in a mesotrophic lake: Nutrients outweigh other drivers of lake change - led by Dr Rose Gregersen (Victoria University of Wellington) has been published in the prestigious journal Environmental Science & Technology.

The research explores the history of Rototoa, a lake in the Auckland region of Aotearoa-New Zealand. The researches combined sediment core analysis with historical data, and ecological experiments to determine what was causing the decline in lake health in recent decades. 

The researchers show that the health of the lake remained stable despite catchment deforestation and erosion, and the introduction of several non-native fish species. The most significant and sustained changes in lake health coincided with nitrogen and phosphorus fertilizers in the catchment.

Congratulations Rose on your excellent research!

Visit www.lakes380.com for a link to the full manuscript.

#Lakes380 #Cawthron #GNS #ScienceLife #NZscience #research #researchLife #VictoriaUniversityofWellington #Aucklandlakes #rototoa #paleolimnology #sedimentcores
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About

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    • Rangitīkei Iwi Rohe Study
    • Wairarapa Moana iwi rohe study
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