## Workshop Description

This one-day workshop is for those interested in expanding their R skills to estimate basic population dynamic rate parameters. Through a sequence of short lectures, code demonstrations, and hands-on application exercises, participants will use R to construct and apply an age-length key to estimate ages of individual fish from their lengths, estimate mortality rates and compare rates among groups, fit a von Bertalanffy growth function (VBGF) and compare function parameters among groups, and fit weight-length relationships and compare parameters among groups. A short demonstration for creating reproducible reports will also be demonstrated. Participants should be familiar with the fundamentals of R. See the workshop announcement.

## Pre-Workshop Preparation - REQUIRED

**Install R**: Install at least version 3.4.0 of R (*note that 3.4.3 is the latest version*) on your laptop. Directions for a first install are here for Windows or here for MacOS. If you are using Windows and already have R installed, then here is an easy method to upgrade. [*The MacOS installation directions may be dated. Simply following the installation defaults should be fine.*]**Install RStudio**: RStudio is not required for this workshop but I**strongly encourage**you to use it to interact with R. Directions to install and prepare RStudio are here for Windows and here for MacOS. [*The MacOS installation directions may be dated. Simply following the installation defaults should be fine.*]**Install R Packages**: Install the`FSA`

,`FSAdata`

,`AICcmodavg`

,`captioner`

,`dplyr`

,`magrittr`

,`minpack.lm`

, and`nlstools`

packages. Directions for installing packages are here if you plan to use RStudio and here for Windows and here for MacOS if you plan to use R directly. Test your package installations by seeing if this script runs without error.**Get Workshop Materials**: Download (to one folder/directory on your computer) each of these six items:

## Pre-Workshop Preparation - OPTIONAL

*Get Book*: The materials for this workshop are based on my*Introduction to Fisheries Analysis with R*book (IFAR). This book is NOT required for the workshop but is available at a 20% discount for workshop participants in this workshop. Contact me for how to order with the discount.*Read Book Chapters*: You may want to (re)familiarize yourself with R basics (IFAR Chapters 1-3), age-length keys (IFAR Chapter 5), estimating mortality rates (IFAR Chapter 11), von Bertalanffy growth functions (IFAR Chapter 12), and weight-length relationships (IFAR Chapter 7).*Can You Knit?*: If you want to try the reproducible reports example (see above) on your own computer, then, to prepare your computer, you should select the File menu, New File submenu, and R Markdown submenu; select the PDF option on the ensuing dialog box and press OK; save the document that opens onto your computer (don’t give the filename an extension); and then press the “Knit” icon on the RStudio script pane toolbar. Install some packages if prompted to do so. If a PDF document is produced then your computer is prepared to compile the reproducible reports example (assuming that you successfully followed the installation instructions above).

## Post-Workshop Follow-up

- Please complete this survey regarding this workshop.
- Here is the answer key to the Escanaba Walleye exercises.
- If you have any questions please feel free to contact me.