To cite package ‘fishgrowth’ in publications use:

  Magnusson A, Maunder M (2025). _fishgrowth: Fit Growth Curves to Fish
  Data_. R package version 1.0.1,
  <https://CRAN.R-project.org/package=fishgrowth>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {fishgrowth: Fit Growth Curves to Fish Data},
    author = {Arni Magnusson and Mark Maunder},
    year = {2025},
    note = {R package version 1.0.1},
    url = {https://CRAN.R-project.org/package=fishgrowth},
  }