Fish kills are disappointing and heart breaking, no matter where we see them or how devastating they are. Recently Murray Cod have shown up dead at Burrinjuck Dam. Fishing this lake often we wanted to know why!

After witnessing a similar fish kill at Blowering back in 2019 we have already had some experience witnessing similar fish deaths with a similar pattern.

In this chat we dive deep into what a ‘roll over’ event is, how it happens and why we believe this is the cause of this fish kill. In this episode we discuss how the water behaves, stratifies and reacts to the environment around it. This also affects fish activity and can be a reason as to why fishing is so tough at times…

In this episode:

00:30 – Introduction to the Episode

10:00 – Theory – Fish Dying from Fighting and Bacteria

19:00 – Theory – Roll Over

You’ve probably heard the saying, “1020 the fish are plenty”? This is in reference to the Barometric Pressure and when it’s over 1020hPa… the fishing is good.

But how does the barometric pressure affect the fish? The most common theory that been around for many years is the direct impact on the swim bladder on the fish… but this theory had its flaws.

So I decided to do a deep dive into barometric pressure and explored other avenues as to how it directly impacts fish, especially freshwater fish. In this episode I look at swim bladders, and how they work. As well as exploring dissolved oxygen to see if this has a direct correlation to pressure changes.

What I find in this episode is fascinating… and well worth a listen for any angler – fresh or salt. Enjoy!

In this episode:

1:00 – Introduction into Barometric Pressure and Old Theories

10:00 – Does Dissolved Oxygen Change During Barometric Pressure Shifts?

19:00 – Fluctuations of Dissolved Oxygen in Freshwater Impoundments

25:00 – How Do Fish Swim Bladders Work

45:00 – How Does Barometric Pressure Effect Fish?

That's right! We launched another podcast that talks about key topics, techniques, locations and also discusses theories, those 1% extra things that will make a big difference on your sessions.

Join us on our other podcast channel!

Head to our website to learn more: https://socialfishing.com.au/