Despite limits on gatherings due to COVID-19, Shoalhaven River Commercial Fishing Fleet director Alex Briceski said there was still a demand for local seafood.

"When you get into flu season and with viruses, people want to eat as healthy as they can. They want good quality produce," Mr Briceski said.

"You can't compare imported and Australian seafood. We sell what we've got then go home."

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Mr Briceski said trading was strong at his seafood van in Bowral over the long weekend.

Meanwhile his Shoalhaven business experienced a steady number of private clients.

Mr Briceski said salmon sales were down from last year, as "it's a farmed thing".

However he said there was a higher demand for flathead and snapper, as these products were caught locally.

Mr Briceski said the consistent demand for his products was due to the level of quality.

"I think if you've got good produce, people will support you," he said.

"If we finish at midday, it's not because we didn't have a lot of fish, it's because it's gone."