Atlantic halibut large flatfishes, including Pacific halibut, "Hippoglossus stenolepis". Due to its popularity as a food fish, Atlantic halibut has attracted investment in fish farming. As of 2006, five countries - Canada, Norway, the UK, Iceland and Chile - were engaged in some form of Atlantic halibut aquaculture production. In 1996, the IUCN rated it as Endangered and placed it on its Red List. The Atlantic halibut is a US National Marine Fisheries Service Species of Concern, one of those species about which the U.S. Government's National Oceanic and Atmospheric Administration has some concerns regarding status and threats, but for which insufficient
Flat Bastion portion, now a geological research and exhibition facility. The bastion is a listed building with the Gibraltar Heritage Trust. While St. Jago's Bastion has been said to be an early name for Flat Bastion, it has a separate listing with the Gibraltar Heritage Trust, next to those for Flat Bastion and Flat Bastion Magazine. The Spanish began construction of Flat Bastion in the 16th century, in 1552, at which time it was referred to as St. Jago's or Santiago's Bastion (). According to Dr. Darren Fa and Professor Clive Finlayson, both of the Gibraltar Museum, Flat Bastion was built by