So far, research has focused on four case studies: the Sado estuary in Portugal, Brittany in France, Ísafjörður in Iceland, and Gloucester in Massachusetts. It has involved substantial archival research, the identification of fishing operations with an assessment of historical landings, a mapping of urban developments, and an inventory of buildings and constructions. Using Geographic Information Systems (GIS), these materials are being interwoven and discussed in relation to each other, with a special focus on cod and sardine fisheries. In parallel, species life cycles and Habitat Suitability Models are being developed to hindcast the historical environmental conditions supporting cod habitats in the North Atlantic. The ongoing challenge is to integrate disparate data and information within a coherent matrix to address the interrelation between species behaviour and terrestrial urban developments and architectural features. A main achievement under review for publication is the identification of intertwined timelines for the different cycles of fish species, fisheries, and associated building practices.