'Very low' water flow leads to high risk of fish kills
UPDATE, Tuesday, 2.30pm: NSW DPI Fisheries officers have confirmed approximately 70 fish died in the fish kill in the Richmond River at Moore Park, Old Grevillia.
The spokeswoman said the species of fish affected consisted "mainly of mullet".
"The fish kill is likely to have been caused by low dissolved oxygen levels ... due to minimal river flows at the site and high temperatures," the spokeswoman said.
A formal fish kill report has been filed and Kyogle Council has been notified.
UPDATE, Monday, 4.28pm: THE NSW Department of Primary Industries will continue to investigate fish kills in the Richmond River at Moore Park, Old Grevillia after public concerns were raised on social media yesterday.
A spokeswoman said DPI Fisheries officers have investigated and found river flows were very low. Remaining pools are becoming stagnant, leading to dissolved oxygen crashes.
Much of NSW is currently experiencing heatwave conditions and the ongoing drought across western NSW has resulted in fish kills in a number of waterways recently.
With no rain predicted in the short term, very low to no flows across the state's waterways and predicted very high temps over the next week, there still remains a high risk of further fish kills over the coming days and week.
Community members are encouraged to report any similar incidents or observations through the Fishers Watch hotline 1800 043 536.
The NSW Government released an interim report last week, which found that recent fish kills in the Menindee were likely to have been caused by several factors resulting in low dissolved oxygen levels in the river.
Original story: AN IMAGE of dead fish floating in the Richmond River at Moore Park, Old Grevillia has sparked community concern.
Melinda McCormick shared a photo on the Kyogle (the friendly town) Facebook page yesterday, with the caption: "A sign of the dry, very sad, fish kill at Moore Park."
She estimated there were about 40 to 50 dead fish in the river alongside the park."We have never seen this in the river and we've been in the area for 38 years," Ms McCormick said.
The post generated a robust debate over the reasons for the fish deaths and what could be done.
While the dry conditions and heat were obvious suggestions, Minnie Morrison commented saying the nearby fruit bat population was to blame.
Hayley Strong replied: "Nothing to do with irrigation systems, farm runoff, noxious weeds, native flora removal, and poor land management practices? Definitely the bats LOL."
The Department of Primary Industries has been approached for confirmation on whether they had inspected the site.
More to come.