Oyster_accumulation {shelltrace}

Calculate trace element accumulation rates

Description

Function that combines the concentrations of trace elements per sub-increment with a smoothed record of mass accumulation with time to calculate the rate of accumulation of each element through the lifetime of the bivalve. de Winter, N. J. (2017) <doi:10.5194/gmd-2017-137>

Usage

Oyster_accumulation(el_time, subincr_matrix, npma = 10)

Arguments

el_time

Matrix of trace element concentrations through time

subincr_matrix

Data frame that contains characteristics of every sub-increment

npma

Integer n-value determining the window size of the moving average smoothing of the mass accumulation record

Details

A record of mass accumulation of the shell is smoothed using a moving average. This mass accumulation record is multiplied with the records of trace element concentrations per sub-increment to obtain a record of mass accumulation of each trace element through time and a record of cumulative trace element accumulation through time

Value

Matrices of trace element accumulation per sub-increment and cumulative trace element accumulation

M_el_mat

Matrix of mass accumulation per trace element

M_el_mat_c

Matrix of cumulative mass accumulation per trace element

Note

Please cite Geoscientific Model Development paper dealing with the ShellTrace model

Author(s)

Niels J. de Winter

Source

GitHub
Manuscript
Supplementary data
Author website

References

de Winter, N. J.: ShellTrace v1.0 ? A new approach for modelling growth and trace element uptake in marine bivalve shells: Model verification on pacific oyster shells (Crassostrea gigas), Geosci. Model Dev. Discuss., https://doi.org/10.5194/gmd-2017-137, in review, 2017.

See Also

"Oyster_el_time"

Examples

  AccL<-Oyster_accumulation(el_time, subincr_matrix6, npma = 10)