![news image](https://water.nsw.gov.au/__data/assets/image/0009/570546/Male-giant-dragonfly-273x227.jpg)
The Surface Water Science team are developing new environmental DNA techniques for monitoring the Giant dragonfly to help protect this endangered species.
![news image](https://water.nsw.gov.au/__data/assets/image/0006/568194/bruv-turtle-273-x-227.png)
The Surface Water Science team are using Baited Remote Underwater Videos (BRUVs) to survey freshwater turtle populations.
![news image](https://www.dpie.nsw.gov.au/__data/assets/image/0009/532395/river-health-tim-taeusler-237x227px.jpg)
The NSW Government are collaborating with Macquarie University to trial new technology for measuring water quality in NSW rivers.
![news image](https://www.dpie.nsw.gov.au/__data/assets/image/0005/516218/tributary-flows-273-x-227.jpg)
Environmental flow rules in river tributaries boost productivity in the Barwon-Darling (Barka) River
Tributary inflows play an important role in delivering resources such as organic matter and nutrients to the mainstem of a river. Our study showed how essential food resources from the Mehi and Namoi tributaries provide an important boost to riverine food webs which support native fish in the Barwon-Darling River.
![news image](https://www.dpie.nsw.gov.au/__data/assets/image/0009/515889/bourke-weir-273-x-227.jpg)
Our project investigated how much water is needed to flow through the Barwon-Darling River (Barka) pools to keep the river healthy. When sufficient water flows through the pools, thermal stratification is less likely to occur which reduces the risk of toxic algae blooms and possible fish deaths.