Gloucester (16) 22
Try: Simpson-Daniel Pens: Barkley 4, Lamb Con: Barkley
Biarritz (3) 10
Try: Gobelet Drop: Peyrelongue Con: Peyrelongue
Barkley's kicking helped Gloucester to victory
Olly Barkley kicked Gloucester to victory over French club Biarritz.
Barkley kicked three penalties in the first half as well as a conversion after James Simpson-Daniel went over.
But Jean-Baptiste Gobelet struck back after the restart when he was set up by Romain Cabannes' fine break to ensure a tense spell for Gloucester.
But the home side weathered the storm and with Barkley adding a fourth penalty their increasingly ill-disciplined opponents faded away.
The game began at a decent pace but neither side really threatened to do anything other than kick points, so when Olly Morgan was yellow carded for tackling Damien Traille mid-air, it looked like it might break the stalemate.
But rather than inspiring the visitors, it was Gloucester who responded better to losing a man.
Simpson-Daniel and Iain Balshaw looked the most positive and threatening players on the pitch, stretching the Biarritz defence as Gloucester dominated possession, but not quite managing to find a way through.
Biarritz captain Jerome Thion missed the last quarter of the first half after he was sin-binned for persistent infringement shortly before Morgan returned to the pitch, and just before the break Gloucester finally managed their first try.
The visitors made a mess of a line-out on the left near the try-line, and after the referee waved away strong shouts for a knock-on by Luke Narraway, Gloucester worked the ball across the field to Simpson-Daniel to dive over.
Biarritz struck back quickly after the break, Romain Cabannes drawing Barkley out of position to allow Gobelet to go in and score by the posts.
This clearly rattled Gloucester as well quietening the vociferous home fans, until Barkley's fourth penalty gave them some breathing space..
Takudzwa Ngwenya threatened to test Gloucester with his speed, but when Balshaw bundled him out of play, it gave the impression that Biarritz's moment had passed, and they rarely threatened again after that.
Gloucester coach Dean Ryan:
"I am really pleased with the result - it was a big step for us. It is an even bigger game for us now against Cardiff next week."
Biarritz coach John Isaac:
"I thought we deserved at least a point from the game.
"The refereeing was very one-sided. There were things that were blown against us that weren't blown against them.
"Having said that, our discipline was very poor - and there are a few things we need to look at."
Gloucester: Morgan; Balshaw, Tindall, Barkley, Simpson-Daniel; Lamb, Cooper; Narraway, Strokosch, Buxton, Brown, Bortolami, Nieto, Azam, Dickinson.
Replacements: Vainikolo for Barkley (73), R Lawson for Cooper (57).
Not Used: S Lawson, Forster, Eustace, Hazell, Walker.
Sin Bin: Morgan (21).
Biarritz: Thiery; Ngwenya, Cabannes, Traille, Gobelet; Peyrelongue, Cibray; Cronje, Vahafolau, Lund, Carizza, Thion, Moala, August, Barcella.
Replacements: Masi for Thiery (58), Bidabe for Cabannes (72), Som for Carizza (53), Bourrust for Moala (53), Coetzee for Barcella (64).
Not Used: Roidot, Tranier.
Sin Bin: Thion (29).
Ref: Peter Allen (RFU).