Lobsters as keystone: Only in unfished ecosystems?

Highlights: [•] We have developed a present day ecosystem model for the Taputeranga MR. [•] We have historically reconstructed the ecosystem state prior to commercial fishing. [•] We have run future simulations to predict ecosystem response to marine protection. [•] The keystone role of lobster has changed since historical times due to fishing. [•] The Taputeranga MR is predicted to return the ecosystem to a more historical state. [Copyright &y& Elsevier]