The US EPA ECOTOX database is a freely available database
    with a treasure of aquatic and terrestrial ecotoxicological data.
    As the online search interface doesn't come with an API, this
    package provides the means to easily access and search the database
    in R. To this end, all raw tables are downloaded from the EPA website
    and stored in a local SQLite database <doi:10.1016/j.chemosphere.2024.143078>.

Assists ecologists in the analysis of temporal changes of 
    ecosystems, defined as trajectories on a chosen multivariate space, by providing a set of 
    trajectory metrics and visual representations [De Caceres et al. (2019) <doi:10.1002/ecm.1350>; 
    and Sturbois et al. (2021) <doi:10.1016/j.ecolmodel.2020.109400>]. Includes functions
    to estimate metrics for individual trajectories (length, directionality, angles, ...) as well as
    metrics to relate pairs of trajectories (dissimilarity and convergence). Functions are also
    provided to estimate the ecological quality of ecosystem with respect to reference conditions 
    [Sturbois et al. (2023) ].

An approach and software for modelling marine and freshwater ecosystems. It is articulated entirely around trophic levels. EcoTroph's key displays are bivariate plots, with trophic levels as the abscissa, and biomass flows or related quantities as ordinates. Thus, trophic ecosystem functioning can be modelled as a continuous flow of biomass surging up the food web, from lower to higher trophic levels, due to predation and ontogenic processes. Such an approach, wherein species as such disappear, may be viewed as the ultimate stage in the use of the trophic level metric for ecosystem modelling, providing a simplified but potentially useful caricature of ecosystem functioning and impacts of fishing. This version contains catch trophic spectrum analysis (CTSA) function and corrected versions of the mf.diagnosis and create.ETmain functions.

Functions for evaluating and visualizing
  ecological assessment procedures for surface waters
  containing physical, chemical and biological assessments
  in the form of value functions.