Satellite Image of South America (image) Wildlife Conservation Society Share Print E-Mail Caption This satellite image of chlorophyll concentration, obtained from the SeaWiFS satellite, was used by researchers to understand how franciscana dolphin populations are formed by environmental barriers. Credit Goddard Space Flight Center, NASA Usage Restrictions For one-time usage only. Must use the following credit: Goddard Space Flight Center, NASA. Share Print E-Mail 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.