The number of anti-Semitic incidents around the world more than doubled from 2008 to 2009, according to a Tel Aviv University study.

In 2009, 1,129 such incidents were recorded -- an increase of more than 100 percent from the 559 incidents noted in 2008, according to the study, released Sunday by the university's Stephen Roth Institute for the Study of Contemporary Anti-Semitism and Racism.