Japan has set itself a target of killing 750 whales in the upcoming whaling season, federal Environment Minister Peter Garrett says.

Mr Garrett hailed the news as potentially a good sign because Japan usually aimed to kill more whales.

He referred to a Japanese newspaper report, published overnight, which said the whaling target had been reduced by 20 per cent to 750 animals.

"If accurate, it would represent the first time since Japan's scientific whaling commenced in 1987 that the actual target has been reduced," Mr Garrett told Parliament.

"I also want to emphasise that, while any reduction would be welcome, it would be an encouraging sign given it has not happened before, the Government's objective remains bringing an end to all commercial whaling."

The whaling season is expected to start within a month.

Last season, the Australian Government sent a vessel to track the Japanese whaling fleet and obtain evidence for possible legal action.

Legal action has not yet been taken, but Australia has appointed a special envoy for whale conservation.

The Government has not revealed if it will send another vessel this season.

"Our immediate efforts are on finding a diplomatic resolution to this issue," he said.

Mr Garrett described Japan as a friend.

"This is a complex issue, an issue between friends, but one we know the Australian community feels very strongly about."

AAP