prey_w_from_pooled_weight: Allocate weight to individual prey lengths from prey-pooled...

In MortenVinther/FishStomachs: Compilation of stomach contents data

Allocate weight to individual prey lengths from prey-pooled weights

Description

Allocate weight to individual prey lengths from prey-pooled weights using length-weight relations by prey species and digestion stage from records where prey weights are recorded by the individual record. This is done for the species included in the list of species (control@sel_species). For other species, a total weight by species is calculated and length information is set to missing.

Usage

prey_w_from_pooled_weight(
  stom,
  sum_other_preys = TRUE,
  do_plots = FALSE,
  quantile_lw = c(0.01, 0.99)
)

Arguments

stom	input Stomach contents data of class STOMobs.
sum_other_preys	Flag for transforming preys not included in sel_preys into prey="other food" with no length information
do_plots	Flag for plotting derived length-weight relations and other plots.
quantile_lw	Quantile of size range of prey length to be used for estimating length-weight relation

Value

Stomach data, class STOMobs.

Examples

## Not run: individual_prey_weights_from_pooled_weight(stom=a,sel_preys=c("Clupea harengus"),
      sum_other_preys=TRUE,do_plots=FALSE)
## End(Not run)

MortenVinther/FishStomachs documentation built on Feb. 14, 2025, 7:33 a.m.