EOS 110 Lab 10 Marine Conservation

Fishing Exercise

Normally, in the lab, we'd use an assortment of tokens and some paper bags to play this game. That's impossible this term. Instead we've implemented the Fishing Exercise as an Excel spreadsheet. Cooperation is going to be needed to have success in this part of the lab.

The Village Fishery sheet can be found on Brightspace in Lab 10.

It's also available as a Google Sheet -- you must copy it to your own Google Drive before you can use it.

There are several ways a group can work on this. One student can copy the sheet and, sharing their screen enter values for all of the students in a group. Or, each student can download and use the sheet, recording what other members of the group say they are doing.

The tables on the sheet are laid out a bit differently than they are in the lab. Make sure you are familiar with both arrangements. Updated instructions follow this image. These don't replace the instructions in your lab manual.

To play the game follow these instructions (but remember that the instructions recorded in your lab document superceded these).

1. You'll only be using the blue shaded region to enter your choices.
2. Enter your names under "Fishers". Don't worry about leaving rows empty if you are a group of three or four.
3. Take turns being the first person to fish in each season (you can refer to Table 6).
4. Catch fish by entering your chosen number of each species in the columns to the right of your name, in the appropriate Season.
5. You can't catch more fish than are available, but otherwise you can take from zero to the remaining total. In the reproduction phase, the number of fish for the next season will be updated automatically. You can't exceed the carrying capacity of the fishery. The total harvest and remaing stock of each species per season is shown in the bottom row.
6. To start another scenario, make sure you've recorded the information you need and blank out the blue region where you recorded your take.

Marine Reserves and Local Fisheries

Download the Marine Reserves Model

The Marine Reserves exercise works just as it would have in the lab. In this case one group member with a computer that can run Java programs will have to download and run the simulator while sharing their screen. Cooperation will be key here as each group member will have to see the display and help to make changes according to the instructions in the manual.

Download the model package (link abvove) and unzip it. The model is a Java program called "ncepinteractive.jar". Your computer will need to have Jave installed (Windows and MacOS do) and have permissions set to allow running Java programs. On MacOS this is doen in the System Preferences Java panel. Some help is available at the end of this document.

Information about the modelled species follows below.

Pay attention to the instructions from your TA. They will explain how the interface works. Here's a summary.

• The simulation window has an Edit Menu at the top left. Use options here to reset the simulation, or clear any fishing researves that you've built, but take care when doing this.
• Chose the species you want to model under the Fish Parameters column: Conch, Grouper, and Lobster. NB Resetting the simulation resets this to the default, Grouper.
• We won't be using the Boat Parameters in the second column of options.
• You can change the Simulation speed, and the maximum days simulated in the rightmost column, General Parameters.
• Create marine reserves by clicking or clicking and dragging on hexagonal cells on the reef. Cells in a reserve are outlined in white. Cells being selected are solid white.
• To remove a cell from a reserve click it again, or click and drag over a group. These cells are shown with solid black fill while being selected.
• The yellow and blue port locations are indicated with coloured squares on the shore of the island.
• There are four time series graphs beneath the reef map. These give you species population inform and port boat counts.

On Windows you may have to install Java before you can use the Fisheries model. Get Java from Java.com.

On MacOS Java is already installed but you may have to grant permission to run a Java apps. This is done in the System Preferences Security and Privacy panel. A message should pop up when you try to run the app.

Go to: System Preferences | Security & Privacy. Click the "General" tab. It will say "ncepinteractive.jar" was blocked. Click "Open Anyway" , and then another warning box comes up, hit open and the simulator should pop up.