Unions prepare for general strike in Spain A banner proclaims a Spanish general strike for 29 March. Spain's unions called for a general strike Thursday The unions hope to disrupt transportation and industry Spain has an unemployment rate of 23% Madrid (CNN) -- Spanish unions were making final preparations for a general strike Thursday to protest the new conservative government's labor reforms and austerity cuts. It will be the first general strike against the government of Prime Minister Mariano Rajoy, which was elected in November and took office in December, in the midst of Spain's deep economic crisis. Leaders of the two main unions -- the Socialist-leaning General Workers Union (UGT) and the Communist-leaning Workers Commissions (CCOO) -- were due in Madrid's central Puerta del Sol plaza late Wednesday to meet with union picketers who will then spread out across the capital, while other picketers fan out across the nation. The unions are expected to try to disrupt public transportation and major industry in the early hours of the strike, either through workers staying off the job or through informational picketers who will noisily greet people trying to go to work and ask them to join the strike. Union protests across the nation this month and last drew large crowds, which analysts say emboldened the unions to move ahead with a general strike. The unions' strike theme is: "They want to end labor and social rights and finish off everything." At the MercaMadrid wholesale fish market, one of the largest in Europe, seafood wholesaler Alfonso Mozos, who employs 120 people, said he doesn't think striking is good. "It would be better if unions, the government and employers would negotiate and find a solution," he said. Union picketers are expected at the entrance to the sprawling market on Madrid's south side, but some employees say they plan to work despite the strike. "If the boss buys fish and we need to come, we'll come," said Pedro Marin, a worker at the wholesale market. But if the union pickets outside won't let us in, we'll just have to wait, or maybe go home. Many other Spaniards, who have already seen their salaries cut or frozen in the economic crisis, were debating whether to strike. If they walk out, they will lose a day's wage, which for government workers could amount to several hundred dollars. Unions and government officials in many, but not all, of Spain's 17 regions have agreed on minimum services, which generally call for about 30% of public transportation to run, while public hospitals and other essential services would have reduced staff, similar to holiday levels. The unions also plan 80 demonstrations across the country on Thursday, mostly in the late afternoon or eary evening. The strike comes one day before the government unveils its 2012 budget on Friday, with the aim of reducing Spain's deficit to 5.3% of gross domestic product this year, and to 3% next year, to meet European Union requirements. The government already approved a $20 billion (15 billion euro) package of austerity cuts and tax hikes to reduce the deficit, and on Friday it is expected to announce a second package of the same size or larger. Government critics say it will be the first time the government really shows its hand on where to make deep cuts in specific programs and agencies. Rajoy, at a recent European Union summit, was reported by Spanish media to be overheard on an open microphone telling another EU leader that the labor reforms would cost him a general strike. But the conservatives have a commanding majority in parliament and later approved the reforms unchanged. It predicts a 1.7% decline in the economy this year. The government also has demanded reforms in the banking sector, with the aim of getting credit flowing again and to clean up the books of lenders stuck with huge uncollectible debts left over from Spain's real estate and construction boom that went bust, precipitating the economic crisis.