D. Ross Robertson has published a paper entitled "Global biogeographical data bases on marine fishes: caveat emptor" (doi:10.1111/j.1472-4642.2008.00519.x - DOI is broken, you can get the article here). The paper concludes: As I've noted elsewhere on this blog, and as demonstrated by Yesson et al.'s paper on legume records in GBIF (doi:10.1371/journal.pone.0001124) (not cited by Robertson), there are major problems with geographical information