A comprehensive statistical and visualization toolkit tailored
for observational data in fisheries science and aquatic ecology. Provides
streamlined workflows for univariate and factorial analysis of variance
(ANOVA), analysis of covariance (ANCOVA), multivariate analysis of
variance (MANOVA), permutational multivariate analysis of variance
(PERMANOVA), similarity percentages (SIMPER), generalized linear models,
non-linear morphometric regressions, two-group hypothesis testing, and
chi-square tests. Features multivariate ordination methods including
non-metric multidimensional scaling (NMDS), principal component analysis
(PCA), redundancy analysis (RDA), distance-based redundancy analysis
(db-RDA), and hierarchical cluster dendrograms. Computes alpha diversity
metrics, species accumulation curves, water quality index (WQI) values,
heavy metal ecotoxicological contamination indices, correlation heatmaps,
and Mantel test network linkages. Offers specialized environmental
visualizations including Sankey diagrams, Likert plots, circular bar
charts, and longitudinal time-series with uncertainty ribbons.
Methodological formulations for multivariate permutation tests follow
Anderson (2001)