Predict Fish Hatch and Emergence Timing R package hatchR version 1.0.1 Predict hatch and emergence timing for a wide range of wild fishes using the effective value framework (Sparks et al., (2019) <DOI:10.1139/cjfas-2017-0468>). 'hatchR' offers users access to established phenological models and the flexibility to incorporate custom parameterizations using external datasets. Software Depends: R (>= 4.1.0) Imports: dplyr (>= 1.1.4), ggplot2 (>= 3.5.2), ggtext (>= 0.1.2), lifecycle (>= 1.0.4), lubridate (>= 1.9.4), rlang (>= 1.1.4), stats, tibble (>= 3.2.1), utils Suggests: cli (>= 3.6.1), ggridges (>= 0.5.6), knitr (>= 1.49), nycflights13 (>= 1.0.2), patchwork (>= 1.3.0), purrr (>= 1.0.2), readr (>= 2.1.5), rmarkdown (>= 2.29), stringr (>= 1.5.1), testthat (>= 3.0.0), tidyr (>= 1.3.1) Bryan M. Maitland <bryan.maitland@usda.gov> Comprehensive R Archive Network (CRAN) Bryan M. Maitland [aut, cre] (ORCID: <https://orcid.org/0000-0002-4491-5064>), Morgan M. Sparks [aut, cph] (ORCID: <https://orcid.org/0000-0003-0787-2218>), Eli Felts [ctb] (ORCID: <https://orcid.org/0000-0002-5888-9266>), Allison Swartz [ctb], Paul Frater [ctb] GPL-3 2025-07-29 application/tgz https://CRAN.R-project.org/package=hatchR doi:10.32614/CRAN.package.hatchR