On their own, I don't think they would. The RCAs were set up specifically to protect rockfish, mainly the inshore stocks of rockfish, yet MPAs are meant for biodiversity as a whole. One of the first things that would have to get done is to see what habitat types and ecosystems are missing with the current protections, including the RCAs, some of the provincial parks with a marine component, and others that were mentioned. We'd need to see some of the gaps in protecting biodiversity. They might be a great basis for an MPA network, but additional places would likely be needed to ensure protection of biodiversity as a whole.
On May 11th, 2017. See this statement in context.