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Development of DNA based methods to detect taonga species

Konstanze Steiner and Georgia Thomson-Laing talk about the development of DNA based methods to detect taonga species

Lakes380 researchers Konstanze Steiner and Georgia Thomson-Laing recently talked to Cawthron Radio about the development of DNA-based methods to detect taonga species that live in New Zealand lakes.

Konstanze and Georgia have been developing DNA-based methods to detect tuna (eel) and kākahi (freshwater mussels) in environmental samples. By extracting DNA shed from the tuna and kākahi into the water and sediments of lakes, they are able to determine if these native aquatic species currently live in the lake and how abundant they are. These methods provide a new avenue to map the distribution of these species at scale not previously possible. Once their methods are fully optimised they hope to use them to explore historic populations of these species from lake sediment cores. Check out the interview here.

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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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