GULFPORT, Miss. - A commercial boat captain from Bayou La Batre, Ala., has pleaded guilty to shooting a dolphin with a shotgun in the Mississippi Sound in the summer of 2012.

The Sun Herald reports Brent Buchanan faces maximum penalties of one year in prison and a $100,000 fine at his sentencing on Feb. 24.

Buchanan was charged with taking a marine mammal in a bill of information filed in federal court Thursday. He pleaded guilty Tuesday before Magistrate Judge John M. Roper. Roper allowed him to remain free on an unsecured $25,000 bond pending sentencing.

Online court records don't say why Buchanan shot the dolphin, if he killed it or whether it was hoisted aboard his vessel.