Sargasso Sea: Custom User Layer (IMAGE) Global Fishing Watch Caption This animated gif shows a user added custom layer revealing the area defined as the Sargasso Sea over the Global Fishing Watch heat map Credit Global Fishing Watch Usage Restrictions Global Fishing Watch License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.