| usgs.gov | USGS National Wetlands Research Center: Wetlands Ecology Branch |
| dmu.dk | Department of Lake and Estuarine Ecology |
| anserc.org | Academy of Natural Sciences' Estuarine Research Center |
| ufl.edu | Center For Wetlands at the University of Florida |
| zalf.de | Zentrum für Agrarlandschafts- und Landnutzungsforschung e.V. |
| umces.edu | University of Maryland Center for Environmental and Estuarine Studies |
| sfei.org | San Francisco Estuary Institute |
| panam.edu | Coastal Studies Laboratory |
| ife.ac.uk | The Institute of Freshwater Ecology |
| fba.org.uk | Freshwater Biological Association |
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