contaminant-accumulation: Contaminant Accumulation Functions for FB4 Model

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

Contaminant Accumulation Functions for FB4 Model

Description

Experimental functions for modelling daily contaminant (e.g. methylmercury, PCBs) dynamics in fish using three bioaccumulation models (CONTEQ 1–3).

CONTEQ 1 — food uptake only, no elimination: \text{Burden}_{t+1} = \text{Burden}_t + \sum_i C_i \cdot [\text{prey}]_i \cdot \text{AE}_i

CONTEQ 2 — food uptake with temperature- and weight-dependent elimination (Trudel and Rasmussen 1997): K_x = \exp(0.066 T - 0.2 \ln W - 6.56)

CONTEQ 3 — Arnot and Gobas (2004): uptake from both water (via gill transfer) and food, elimination proportional to respiration.

Value

No return value; this page documents the contaminant accumulation functions module. See individual function documentation for return values.

References

Arnot, J.A. and Gobas, F.A.P.C. (2004). A food web bioaccumulation model for organic chemicals in aquatic ecosystems. Environmental Toxicology and Chemistry, 23(10), 2343–2355. \Sexpr[results=rd]{tools:::Rd_expr_doi("10.1897/03-438")}

Trudel, M. and Rasmussen, J.B. (1997). Modeling the elimination of mercury by fish. Environmental Science and Technology, 31(6), 1716–1722. \Sexpr[results=rd]{tools:::Rd_expr_doi("10.1021/es960609t")}

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