D4Science is an e-infrastructure that facilitates fisheries and aquaculture resource management by hiding heterogeneity across different data locations, protocols, and models. It provides a common ecosystem for accessing rich and diverse data collections from various authoritative sources. D4Science achieves this by federating existing digital content, supporting new content generation, and providing discovery and access capabilities across diversely described data maintained in different repository systems using heterogeneous computational platforms. It realizes this vision through an ecosystem enabled by bridging established systems and standards from domains like high-energy physics, biodiversity, and fisheries.