Tarmac Group of the 1980s, British housebuilding was accounting for half of group profits but it was not the only activity to have been expanded. An alternative profits centre had been built up in the United States, starting in 1984, with the staged acquisition of Lone Star Industries; by the end of the decade Tarmac was operating across seven states in the United States. Construction in the United Kingdom had also grown and Tarmac was involved in such prestige projects as the Thames Barrier and the Channel Tunnel. However, the expansionary nature of the group did not leave it well placed to
Cetacean surfacing behaviour present, particularly when they do not adhere to the regulations about approach. As an increase in SABs is beneficial to the whale watching tours’ participants, the tours may be encouraged to approach cetaceans closer than recommended by guidelines. There is a lack of understanding about the long-term effects of whale-watching on the behaviour of cetaceans, but it is theorised that it may cause avoidance of popular sites, or a decrease in the energy budget for individuals involved. Cetacean surfacing behaviour Cetacean surfacing behaviour or breaching is a group of behaviours demonstrated by the Cetacea infraorder when they come to the