JU (11-11) recorded 10 hits on the day, including three home runs, but have now dropped four consecutive games.
FIU (15-7), which finished with 15 hits in the contest, has now won four of its last five against the Dolphins.
“This is not a good start to the week for us,” said JU head coach Terry Alexander. “We have Mercer coming into town this weekend and we need to take care of our home field when we get into conference play.”
Freshman Kentrail Pierce (2-1) was tagged with the loss after allowing three runs on three hits with a walk in 1.2 innings of relief.
Alberto Cardenas (3-0) earned the win after allowing one unearned run while allowing only one hit with two walks in 2.1 innings of relief.
Sophomore left fielder Jonathan Murphy led the Dolphins by going 4-for-5 while senior first baseman Alex Martinez and junior right fielder Esterlin Perozo each tallied multiple hits.
Mike Martinez led the Panthers by going 2-for-5 with a double, a home run and a game-high four RBI.
The Panthers jumped out to a 2-0 lead in the first when Mike Martinez hit an RBI double and Yoandy Barroso drew a bases loaded walk.
The Dolphins took a 3-2 lead in the third when junior shortstop Jamaal Hawkins hit a three-run homer. Senior second baseman Chuck Opachich led off the inning with a walk and then advanced to third on a single to left center by Murphy. In the next at-bat, Hawkins hit a drive over the left-field wall for his fourth of the season.
FIU recaptured the lead, 5-3, in the bottom of the third when Junior Arrojo drove in a run after being hit by a pitch with the bases loaded and T.J. Shantz hit a two-run double into the left-field corner.
The Panthers increased the lead to 7-3 in the fourth when Tim Jobe hit an RBI double to left and Borroso hit an RBI single through the left side.
FIU added another run in the fifth when a run scored on a wild pitch with the bases loaded.
JU cut the margin to 8-4 in the top of the fifth when a run scored on a double play to short with the bases loaded.
The Dolphins made it 8-6 in the seventh when Martinez and freshman center fielder Dan Gulbransen hit back-to-back solo homers.
The Panthers made it 10-6 in the bottom of the seventh when Martinez hit a sacrifice fly to center and Garrett Wittels hit an RBI chop single to short.
FIU increased the margin to 14-6 in the eighth when a run scored on a fielder’s choice to second, Patton hit an RBI single down the right field line and Martinez hit a two-run homer to left center.
The Dolphins will return to conference action this weekend when they host Mercer at John Sessions Stadium beginning on Friday at 6:30 p.m.