Mr Ryan was out for a walk on Sunday with his two grandchildren at Apex Park when they noticed fish near the shore, already decomposing.

Upon closer inspection, Mr Ryan noticed around seven or eight carp pushed in to the rocks.

"From what I could see they were starting to decompose," he added.

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Mr Ryan shared the find on social media, urging people to be mindful of what they leave behind, and faced a bit of backlash from commenters.

One user suggested Mr Ryan should clean the mess himself, so he returned to the spot on Monday and did just that.

"I don't want it wrecked for everybody," he said.

"If we don't pick them up [and] we don't take them away, then we won't be able to fish ... here at all."

Mr Ryan wants to see people fishing at Lake Albert clean up their mess, especially near the boat ramp at Apex Park where there are bins located just metres from the shore.

"Just take them home, put them in plastic bags, put them in the bin - just don't leave your rubbish and your fish lying around on the bank because they stink," he said.

The walkway has been "packed" with people, he added, due to the ongoing lockdown and more people wanting to go for a walk, making the issue even more pressing.

Mr Ryan reached out to Wagga City Council about the issue, who told him they were looking into it.

"The more people telling [council] about rotten fish, the more people get active about it, the more council will do something about it," he added.

In a statement, a council spokesperson said council is aware of an increase in fishing activities around the lake and encourages people catching carp to take the fish away to dispose of them.

"Rubbish bins are provided in the area and people are urged to use them. Penalties can apply for littering," the spokesperson said.

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