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ArcGIS Explorer fish capture map.

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#1
EmmaVictoria

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Hi,

http://www.arcgis.co...b127f70dcc00d9f

Does anyone know how this map was made and why some countries have red circles even though they are landlocked and don't capture any fish? Is that just to show they were included? Also, does anyone know why the EEZ of Norway is so much bigger than those of  other countries? And why they catch so many fish?

Thank you,

Emma


Edited by EmmaVictoria, 30 April 2013 - 11:45 AM.


#2
Melita Kennedy

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The red circles appear to be used to link to a country's attribute information. The smallest circle represents 0 tons, which you can easily find out by hovering over a red circle in a landlocked country.

 

Norway has a very long coastline, and do not have many neighbors where they would have to reduce or negotiate their EEZ (200 nm) boundary. They also control those islands to the north, thus extending their EEZ quite a bit.

 

If you click the Details button at the upper left of the map, the information is there (Miguel Paredes of Esri UK made it).

 

Melita



#3
frax

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For instance a country like Ukraine, I know that they have shown up as fishing in the waters around Antarctica:

http://www.seaaround.../lme/61/14.aspx


Hugo Ahlenius
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#4
frax

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For the landlocked countries: I assume that it could also be freshwater fish, don't know if aquaculture is included in those stats...


Hugo Ahlenius
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#5
frax

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(looked at the source reference - it should only be capture fisheries, excluding aquaculture)


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#6
DaveB

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Norway's zone might also look bigger because Mercator. :P

 

Lots of information can be gleaned by exploring the map and the pop-ups and sidebars. :)


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#7
David Medeiros

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The red circles appear to be used to link to a country's attribute information. The smallest circle represents 0 tons, which you can easily find out by hovering over a red circle in a landlocked country.

 

Norway has a very long coastline, and do not have many neighbors where they would have to reduce or negotiate their EEZ (200 nm) boundary. They also control those islands to the north, thus extending their EEZ quite a bit.

 

If you click the Details button at the upper left of the map, the information is there (Miguel Paredes of Esri UK made it).

 

Melita

 

Smallest circles actually represent the entire class of 0 - 50,939 tons. So some small circels do have values.

 

This seems like poor symbology to me. With so many locations having zero tons caught there should be a class for zero with a different color cricle (gray?), or no symbol at all if the location simply could not have participated in the marine fish catch anyway.


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