GeoCAS Citizen Science.

Nassau Grouper Mapping

Nassau Grouper mapping in the Virgin Islands


Nassau Grouper

Welcome to Nassau Grouper mapping in the Virgin Islands.

Grouper are a large group of popular food fish in tropical waters. Many of them are under intense pressure from commercial and artisanal fishermen. Nassau Grouper used to be common in the Caribbean. Fishing pressure has severly reduced populations in many places to the point that the US National Marine Fisheries Services has listed it as a species of concern. It is not classified as endangered because we don't yet have enough information about it to make an official determination. Conservation efforts include restricted fishing seasons and protection for Nassau Grouper spawning sites. They range in size up to a yard in length and up to 25 pounds. Color may vary depending on location and food available. The picture to the right shows a typical pattern for an adult.

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  • Navigate the map so you can clearly see the place where you want to place a point on the left hand side of the map.
  • Click on the icon with a pencil at the top left of the map window. Choose any of the icons in the window that appears.
  • Click on the map at the location you want to add a point.
  • Choose answers to the questions in the popup window by clicking on one of the options for each question.
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