http://www.nmfs.noaa.gov/sfa/hms/sharks/LCS_SCS_quota_adjustment_FaxNotice.pdf
http://www.nmfs.noaa.gov/sfa/hms/hmsdocuments.html#shark
Blame the Feds.
They have limited the commercial taking of shark in the Gulf to 60 days a year on average. The shark population is getting huge.
Today there is a fishing tournament from SanDestin. Wonder if all those boats, bait, etc., attracted the shark.