BUZZ-UK asset managers fall as China fears weigh in a risk-off market
** UK asset managers among worst performers in Europe with traders citing a combination of EM exposure, a risk-off market on disappointing data, as well as reports that Man Group (LSE: EMG.L - news) 's China head was taken into custody
** Man Group shares poised for worst one-day drop in more than 2 years and top fallers on the Stoxx 600, down 6.5 pct
** Trader also says co's flagship AHL hedge fund giving back gains after a sharp rise in the final week of August
** Henderson falls 5.4 pct, Aberdeen, Schroders (LSE: SDR.L - news) and Jupiter all down 2-2.5 pct. All firms have significant EM/Asia exposure (RM (LSE: RM.L - news) : alasdair.pal.thomsonreuters.com@reuters.net)