Recommended cross-domain diagnostic
Apply the same source transition and aggregation rule to a natural-photo roster and a museum-specimen roster. Report the sign and interval of the paired change on each domain, then use expansion-only and depth-only reconstructions to separate new-label competition from updates to existing prototypes.
Fish-Vista is not redistributed here. Obtain it from its authors and apply the published adapter. This diagnostic is recommended because a source update can help natural photographs while harming specimens under the same aggregation rule; it is not a canonical leaderboard track.