Jellyfish Database Initiative (JeDI)

entry, Zooplankton
The Jellyfish Database Initiative (JeDI) is a scientifically-coordinated global database dedicated to gelatinous zooplankton (members of the Cnidaria, Ctenophora and Thaliacea) and associated environmental data. The open-access database was designed for all researchers, media, and public to use as a current and future research tool. The database holds 476,000 quantitative, categorical, presence-absence and presence only records of gelatinous zooplankton spanning the past four centuries (1790-2011) assembled from a variety of published and unpublished sources. Gelatinous zooplankton data are reported to species level, where identified, but taxonomic information on phylum, family and order are reported for all records.


published partially
availability public
link to data


type compiled observation data
gridded no
formats nc, mat, odv


period historical
coverage 1790–2011
resolution instantaneous


coverage global
figureSource: Figure 5 from Condon et al. (2102)

Major Variables

Key References

  • Lucas, C. H., Jones, D. O. B., Hollyhead, C. J., Condon, R. H., Duarte, C. M., Graham, W. M., et al. (2014). Gelatinous zooplankton biomass in the global oceans: geographic variation and environmental drivers. Global Ecology and Biogeography, 23(7), 701–714.
  • Condon, R. H., Graham, W. M., Duarte, C. M., Pitt, K. A., Lucas, C. H., Haddock, S. H. D., et al. (2012). Questioning the Rise of Gelatinous Zooplankton in the World’s Oceans. Bioscience, 62(2), 160–169.

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