Claire Corlett

Fish Food, Fish Tanks, and More
Introduction to the Global Fishing Watch map

Introduction to the Global Fishing Watch map

The Global Fishing Watch map displays
about 65,000 fishing vessels in near real-time. It’s easy to register to access full map
functionality including vessel information, uploading of custom layers
and sharing of workspaces you create. Click on the map and grab to view
different parts of the world. Use your mouse or the plus/minus symbols
to zoom in or out. To change the time period you are viewing,
select start and end dates on the time slider, or extend the time slider box. You can also change the activity period
by clicking the gear icon on the box. Click play to watch fishing activity
during your selected period. Click on the arrows to adjust the speed. Click on fishing activity to reveal a
vessels track and identity information. The ‘vessels’ tab allows you to search for
vessels, manage vessels you’ve pinned or revisit vessels you have selected during
a previous session. In ‘activity layers’ or ‘static layers,’ you
can turn layers on or off by clicking the switch next to their name.
The color of any layer can be customized. Click the ‘i’ icon to reveal more
information about the layer. Each dot in the ‘fishing effort’ layer
represents apparent fishing activity as determined by our algorithms using AIS
data. Similarly each dot in the VMS fishing activity layers for Indonesia
and Peru depicts apparent fishing vessel activity from their vessel monitoring
system data. The ‘night light vessel detections’ layer
shows vessels at sea that satellites have detected by the lights that they
emit at night. The ‘vessel encounters’ layer is
identified from AIS data as locations where two vessels were continuously
within 500 meters for at least two hours, whilst at least 10 kilometers from a
coastal anchorage. The ‘MPA-No take’ layer displays protected
areas in which fishing is prohibited. The ‘MPA-Restricted use’ layer displays
protected areas in which fishing is restricted but not completely prohibited.
The ‘EEZ’ layer contains the boundaries of the exclusive economic zones around each
country. You will also see the option to download a report, which is explained in
another video. To add or edit layers, click add or edit on the bottom of the
tool box. ‘Add layer’ will give you the option to select new layers to be
displayed on the map or to add your own new custom layer, which is explained in
another video. The ‘filter’ tab will allow you to narrow
down your search of fishing activity. The filters are explained in another video. To share or save a workspace, click on
the share button located on the left hand side of the map. This will bring up
a unique url for this workspace which you can copy and share, as well as the
option to share via social media.

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