Japan began its first commercial whale hunts in more than three decades on Monday, brushing aside outrage over its resumption of a practice that conservationists say is cruel and outdated. Five vessels from whaling communities left port in northern Japan's Kushiro with their horns blaring and grey tarps thrown over their harpoons. By Monday afternoon, a first whale had been caught and was being transported back to shore. The hunts come after Japan decided to withdraw from the International Whaling Commission, a move slammed by activists and anti-whaling countries but welcomed by Japanese whaling communities. "My heart is overflowing with happiness, and I'm deeply moved," said Yoshifumi Kai, head of the Japan Small-Type Whaling Association, addressing a crowd of several dozen politicians, local officials and whalers in Kushiro before the boats left. "This is a small industry, but I am proud of hunting whales. People have hunted whales for more than 400 years in my home town." A captured Minke whale is unloaded from a truck in Kushiro, Hokkaido Prefecture Credit: AFP Whaling vessels were also leaving Monday morning from other ports including in Shimonoseki in western Japan. The country's Fisheries Agency said Monday it had set a cap for a total catch of 227 whales through the season until late December - 52 minke, 150 Bryde's and 25 sei whales. "I'm a bit nervous but happy that we can start whaling," 23-year-old Hideki Abe, a whaler from the Miyagi region in northern Japan, told AFP before leaving. "I don't think young people know how to cook and eat whale meat any more. I want more people try to taste it at least once." Whaling has long proved a rare diplomatic flashpoint for Tokyo, which says the practice is a Japanese tradition that should not be subject to international interference. As an IWC member, Japan was banned from commercial hunts of large whales, though it could catch small varieties in waters near its coastline. But it also exploited a loophole in the body's rules to carry out highly controversial hunts of whales in protected Antarctic waters under the banner of "scientific research". Activists said the hunts had no scientific value, and Japan made no secret of the fact that meat from whales caught on those hunts ended up sold for consumption. Workers measure a captured Minke whale in Kushiro. Japan began its first commercial whale hunts in more than three decades today - brushing aside outrage over its resumption of a practice that conservationists say is cruel and outdated Credit: AFP Humane Society International slammed the resumption of commercial hunts. "This is a sad day for whale protection globally," said the group's head of campaigns Nicola Beynon, accusing Japan of beginning a "new and shocking era of pirate whaling". With its withdrawal from the IWC, Tokyo will carry out whale hunting off Japan, but will end the most controversial hunts in the Antarctic. "The resumption of commercial whaling has been an ardent wish for whalers across the country," Shigeto Hase, the head of Japan's fisheries agency, said at the departure ceremony in Kushiro. He said the resumption of commercial whaling would ensure "the culture and way of life will be passed on to the next generation". Whale meat was a key source of protein in the immediate post-World War II years in Japan, when the country was desperately poor. Special edition of 'Whaling Newspaper' are distributed at Kanda Station on July 1, 2019 in Tokyo, Japan. A day after Japan's withdrawal from the International Whaling Commission, the commercial whaling resumes for the first time in 31 years, in the Japan's Exclusive Economic Zone (EEZ) Credit: The Asahi Shimbun Most reports suggest consumption has declined significantly in recent decades - with much of the population saying they rarely or never eat whale meat - and activists have pressed Japan to ditch the practice. But a Japanese government official said "demand has been stable". "It is totally false that commercial whaling will not be viable as demand is declining," he said. Some believe that Japan's return to commercial whale hunting will effectively sound the death knell for the industry. "Japan is quitting high-seas whaling... that is a huge step towards the end of killing whales for their meat and other products," said Patrick Ramage, director of marine conservation at the International Fund for Animal Welfare. He said commercial whaling in Japanese waters was unlikely to have much of a future given dwindling subsidies and the shrinking market for whale meat. "What we are seeing is the beginning of the end of Japanese whaling."