Changes in version 1.2.1 CRAN Maintenance & Resubmission Fixes - Methodology References: Added primary literature citations formatted strictly as Authors (year) in the Description field of DESCRIPTION per CRAN maintainer request. - Non-ASCII Characters: Removed non-ASCII encoding in R/test_chisq.R to ensure cross-platform compatibility. - Global Variables: Declared stratum in R/globals.R to resolve the no visible binding for global variable check note in plot_sankey(). - Documentation & URLs: Fixed empty badge links in README.md and sanitized BibTeX link syntax. - Authorship: Updated metadata to include supervisor co-authorship. Changes in version 1.2.0 - Initial CRAN submission of aquats, providing publication-ready ecological, fisheries, and environmental data analysis and visualization workflows.