The Barramundis found themselves in trouble early on the innings when Qadeer Ahmed took the wickets of openers Tony Ura (11) and Vani Vagi Morea (11).
Wickets continued to fall in close succession and the Barramundis found themselves in dire straits at 7/110.
Wicket-keeper Jack Vare (38) and Chad Soper (38) top scored for the side who were all bowled out after 85.3 overs.
Ahmed (3/43) and Ahmed Raza (3/38) both shared the spoils with three wickets a piece.
UAE’s openers Rohan Mustafa (3) and Laxman Sreekumar (11) took the score to 14 to trail by 180 runs with 10 wickets remaining in the 1st innings.
Day two resumes today.