Migratory route of marine animals can be traced.

I would like to point you to a report we have written recently for the European commission specifically on the topic of connectivity between networks of marine protected areas, called Analysis and comparison of criteria used by Member States for establishing coherent, adequate and representative networks of marine protected areas

look at: https://www.researchgate.net/publication/277840693_Analysis_and_comparison_of_criteria_used_by_Member_States_for_establishing_coherent_adequate_and_representative_networks_of_marine_protected_areas

There is a lot to be said about the proper configuration of MPAs and taking care of the connectivity between the is highly relevant.

Best regards

Arjen. 

Technical Report Analysis and comparison of criteria used by Member States fo...

Corridors should be priority areas to become MPAs since they are areas identified to be crucial not only in connecting, but allow the continuous flow of ecological processes to maintain biodiversity, especially connecting two or more large marine ecosystems. They can also be biodiiversity hubs, or migratory paths for either spawning populations or eggs and larvae.

Thank you for your your answers.