Minority residents of Connecticut are bearing the brunt of the economic recession, according to a report released Friday by the advocacy and research group Connecticut Voices for Children. The report showed blacks and Hispanics to be 2.5 times more likely to be unemployed than whites in 2008, and predicted the numbers to be even higher this year. Joachim Hero, research associate at Connecticut Voices for Children and author of the report, said the racial gaps in employment and wages threaten America’s economic future. According to the national unemployment report by the Bureau of Labor Statistics on Friday, unemployment hit 9.7 percent nationwide in August. Data for Connecticut is expected later this month.