compare_with_redfield: Compare N:P ratios with Redfield ratios

In fb4package: 'Fish Bioenergetics 4.0' Model Implementation with High-Performance 'TMB' Backend

Compare N:P ratios with Redfield ratios

Description

Compares calculated N:P ratios with the classical Redfield ratio. Useful for understanding deviations from typical oceanic proportions.

Usage

compare_with_redfield(np_ratios)

Arguments

np_ratios

List result from calculate_np_ratios

Value

A data.frame with one row per process and six columns: Process (character), NP_Ratio (numeric), Redfield_Ratio (numeric), Difference (numeric; observed minus Redfield), Relative_Difference (numeric; % deviation from Redfield), and Interpretation (character; one of "N-rich relative to P", "N-poor relative to P", "No P available", or "No flux").

Examples

nitrogen   <- list(consumed = 10, growth = 3, excretion = 5, egestion = 2)
phosphorus <- list(consumed = 1.5, growth = 0.5, excretion = 0.6, egestion = 0.4)
np  <- calculate_np_ratios(nitrogen, phosphorus)
compare_with_redfield(np)

fb4package documentation built on May 8, 2026, 1:07 a.m.