Skip to content

Latest commit

 

History

History
74 lines (49 loc) · 2.56 KB

minutes.md

File metadata and controls

74 lines (49 loc) · 2.56 KB

Skype meeting minutes

Second Thursday of every month

11 Oct 2018

Alejandro, Arni, Cecilia, Jacob, Paris

Agenda

  1. Examine, summarize, and interpret the results so far
  2. Review gaps in data, identify stocks that could be added
  3. Status update on side stories (Lopt, Norwegian literature, historical changes)
  4. Prepare a list of next tasks, decide who will report on what next meeting

Action items

To be presented at next meeting

[x] Take a closer look at which cod fisheries are active today. [Arni, Jacob]

[x] Add natural mortality in data folder. [Arni]

[x] Experiment with applyFmax. What is the potential yield of the Icelandic cod given the (1) current selectivity, (2) current selectivity shifted one age younger, and (3) current selectivity shifted one age higher? [Arni, Cecilia]

[x] Compare selectivity with maturity. [Paris]

10 Jan 2019

Arni, Cecilia, Jacob, Paris

Agenda

  1. Overview of datasets, recently added stocks, summary plots
  2. Profile results from applyFmax and applyF0.1 across all stocks, shifting selectivity to younger/older fish, effects on catch and SSB
  3. To summarize the results, focus on the effect of shifting one year up or down
  4. Comparison of maturity and selectivity

Action items

New:

[ ] Tabulate the optimal age of capture, given the life history (growth, natural mortality) of each stock. [Alejandro, Arni, Cecilia, Jacob, Paris]

[ ] Create journal-quality plots of main results. [Alejandro, Arni, Cecilia, Jacob, Paris]

[ ] Draft the overall structure of the paper, subsections within intro, methods, results, and discussion. [Alejandro, Arni, Cecilia, Jacob, Paris]

[ ] Compare A50 calculations using linear interpolation vs. logistic interpolation. We can expect A50 to be a better descriptive statistic using the logistic, but let's compare just to make sure that things are working like we hope. [Arni, Paris]

From previous meetings:

[ ] Think about approaches other than applying Fmax or F0.1, e.g. applying Fcurrent but changing the selectivity. Given the F-at-age vector for the most recent year, how would the next year look if F at age 2 would decrease, for example? [Paris]

[ ] Look into egg production / fecundity aspects. Might be practical to use one conversion for Atlantic cod as a species, same for all stocks. [Jacob]

[ ] Look at long-term trends in weight at age. How is it different to plot by cohort or year? Are neighboring regions showing similar trends? Is there an overall trend across the Atlantic? [Alejandro, Arni, Cecilia, Paris]