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bayesnec: An R Package for Concentration-Response Modeling and Estimation of Toxicity Metrics

Created 17/11/2025

Updated 17/11/2025

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The bayesnec package has been developed for R to fit concentration (dose)-response curves (CR) to toxicity data for the purpose of deriving no-effect-concentration (NEC), no-significant-effect-concentration (NSEC), and effect-concentration (of specified percentage "x", ECx) thresholds from non-linear models fitted using Bayesian Hamiltonian Monte Carlo (HMC) via R packages brms and rstan or cmdstanr. In bayesnec it is possible to fit a single model, custom model-set, specific model-set or all of the available models. When multiple models are specified, the bnec() function returns a model weighted average estimate of predicted posterior values. A range of support functions and methods is also included to work with the returned single, or multi-model objects that allow extraction of raw, or model averaged predicted, NEC, NSEC and ECx values and to interrogate the fitted model or model-set. By combining Bayesian methods with model averaging, bayesnec provides a single estimate of toxicity and associated uncertainty that can be directly integrated into risk assessment frameworks. For full details see: Fisher, R., Barneche, D. R., Ricardo, G. F., & Fox, D. R. (2024). bayesnec: An R Package for Concentration-Response Modeling and Estimation of Toxicity Metrics. Journal of Statistical Software, 110(5), 1–41. https://doi.org/10.18637/jss.v110.i05

Files and APIs

Additional Info

Field Value
Title bayesnec: An R Package for Concentration-Response Modeling and Estimation of Toxicity Metrics
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/29c82afa-cb35-48bf-8a6b-c2ff082b49fe
Contact Point
Australian Ocean Data Network
reception@aims.gov.au
Reference Period 04/02/2025
Geospatial Coverage Australia
Data Portal Australian Oceans Data Network

Data Source

This dataset was originally found on Australian Oceans Data Network "bayesnec: An R Package for Concentration-Response Modeling and Estimation of Toxicity Metrics". Please visit the source to access the original metadata of the dataset:
https://catalogue.aodn.org.au/geonetwork/srv/eng/csw/dataset/bayesnec-an-r-package-for-concentration-response-modeling-and-estimation-of-toxicity-metrics