To cite zooper in publications use:

  Bashevkin, S. M., R. Hartman, K. Alstad, and C. Pien. 2023. zooper:
  an R package to download and integrate zooplankton datasets from the
  Upper San Francisco Estuary. Zenodo. doi:10.5281/zenodo.3776867

A BibTeX entry for LaTeX users is

  @Article{,
    title = {zooper: an R package to download and integrate zooplankton datasets from the Upper San Francisco Estuary},
    author = {Samuel M Bashevkin and Rosemary Hartman and Karrin Alstad and Catarina Pien},
    journal = {Zenodo},
    year = {2023},
    url = {https://doi.org/10.5281/zenodo.3776867},
    doi = {10.5281/zenodo.3776867},
  }

  Bashevkin, S. M., R. Hartman, M. Thomas, A. Barros, C. Burdi, A.
  Hennessy, T. Tempel, K. Kayfetz, K. Alstad, and C. Pien. 2023.
  Interagency Ecological Program: Zooplankton abundance in the Upper
  San Francisco Estuary from 1972-2021, an integration of 7 long-term
  monitoring programs. ver 4. Environmental Data Initiative.
  doi:10.6073/pasta/8b646dfbeb625e308212a39f1e46f69b

A BibTeX entry for LaTeX users is

  @Article{,
    title = {Interagency Ecological Program: Zooplankton abundance in the Upper San Francisco Estuary from 1972-2021, an integration of 7 long-term monitoring programs},
    author = {Samuel M Bashevkin and Rosemary Hartman and Madison Thomas and Arthur Barros and Christina E Burdi and April Hennessy and Trishelle Tempel and Karen Kayfetz and Karrin Alstad and Catarina Pien},
    journal = {Environmental Data Initiative},
    year = {2023},
    url = {https://portal.edirepository.org/nis/mapbrowse?scope=edi&identifier=539},
    doi = {10.6073/pasta/8b646dfbeb625e308212a39f1e46f69b},
  }

  Bashevkin, S. M., R. Hartman, M. Thomas, A. Barros, C. Burdi, A.
  Hennessy, T. Tempel, and K. Kayfetz. 2022. Five decades (1972–2020)
  of zooplankton monitoring in the upper San Francisco Estuary. PLOS
  ONE 17:e0265402. doi:10.1371/journal.pone.0265402

A BibTeX entry for LaTeX users is

  @Article{,
    title = {Five decades (1972–2020) of zooplankton monitoring in the upper San Francisco Estuary},
    author = {Samuel M Bashevkin and Rosemary Hartman and Madison Thomas and Arthur Barros and Christina E Burdi and April Hennessy and Trishelle Tempel and Karen Kayfetz},
    journal = {PLOS ONE},
    year = {2022},
    url = {https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0265402},
    doi = {10.1371/journal.pone.0265402},
  }