hake_recruitment_over_2010: Pacific Hake annual age-0 recruitments divided by...

In pbs-assess/PACea: An R package of Pacific ecosystem information to help facilitate an ecosystem approach to fisheries management

Pacific Hake annual age-0 recruitments divided by recruitments in 2010, as estimated by the most recent stock assessment.

Description

This is calculated to improve understanding when comparing recruitments between years. A survey of participants in the stock assessment process found that all but one respondent correctly inferred from the standard plot 'plot(hake_recruitment)' that the 2014 recruitment has zero probability of being as large as the (well-known large) 2010 recruitment.

Usage

hake_recruitment_over_2010

hake_recruitment_over_2010_2023

hake_recruitment_over_2010_2024

Format

A tibble also of class 'pacea_recruitment' with columns:

year:

year of the estimate of scaled recruitment

low:

low end (2.5th percentile) of the 95% credible interval for the scaled recruitment, unitless

median:

median estimate of scaled recruitment, unitless

high:

high end (97.5th percentile) of the 95% credible interval for the scaled recruitment, unitless

An object of class pacea_recruitment (inherits from tbl_df, tbl, data.frame) with 58 rows and 4 columns.

An object of class pacea_recruitment (inherits from tbl_df, tbl, data.frame) with 59 rows and 4 columns.

Details

For each Markov chain Monte Carlo (MCMC) sample the recruitment in a year is divided by the recruitment in 2010, and then median and credible intervals are calculated for each year across all samples.

For more details see Appendix H of the 2022 assessment at https://media.fisheries.noaa.gov/2022-02/2022-hake-assessment-post-srg.pdf. Figure 31 of the 2023 assessment shows the 2023 results.

See '?hake_recruitment' for further details and reference regarding hake, and explanations of 'hake_recruitment_over_2010_2023' etc.

Author(s)

Andrew Edwards

Source

Generated from Andy running (in the hake repository) 'pacea_save()' and then here 'data-raw/groundfish/hake.R'.

Examples

## Not run: 
hake_recruitment_over_2010
plot(hake_recruitment_over_2010)  # the code automatically plots in red and
  adds the line at 1

## End(Not run)

pbs-assess/PACea documentation built on April 17, 2025, 11:36 p.m.