1. Institute of Ecosystem Studies; Millbrook; New York; USA
2. Centre for Estuarine and Marine Ecology; Netherlands Institute of Ecology; Yerseke; Netherlands
3. United States Geological Survey; Denver; Colorado; USA
4. Institut Mediterrani d'Estudis Avançats (CSIC-UIB); Esporles; Spain
5. Finnish Environment Institute; Helsinki; Finland
6. Département des Sciences biologiques; Université du Québec à Montréal; Montreal, Quebec; Canada
7. Laube Engineering LLC; Greeley; Colorado; USA