U.S. Navy Office of Naval Intelligence "Worldwide Threat to Shipping (WTS) Report 1 1 January - 10 February 2016"

Unclassified report from the U.S. Navy's Office of Naval Intelligence:

The Worldwide Threat to Shipping (WTS) message provides info on piracy threats to, and criminal action against, merchant vessels worldwide in the last 30 days. This report is produced primarily to inform merchant mariners and naval forces.

U..S. Navy Worldwide Threat to Shipping (WTS) Report 1 1 January - 10 February 2016

From the ONI Piracy Analysis and Warning Weekly dated 11 Feb 16, a graphic on the activity in the Gulf of Guinea: