An information service with subject areas including aquaculture, conservation, education, fisheries, limnology, oceanography, ocean engineering, maritime heritage, and seafood. The Aquatic Network includes databases, news, articles, employment and business opportunities, publications, images, sounds, videos, products and services, and an online store.

The research group EZECO (Experimental Zooplankton Ecology group) investigates predatory interactions on the higher trophic levels of the Baltic Sea. We concentrate on aspects that have been little studied in the Baltic Sea, such as influence of food quality to secondary production, interactions between zooplankton, cyanobacteria and higher trophic levels, as well as behavioural and life cycle adaptations to predation and unfavourable environmental conditions.

This site contains information about the Biological Indicators Program in the Environmental Sciences Division (ESD) at Oak Ridge National Laboratory (ORNL). Biological indicators have been developed and applied at a variety of field sites in the eastern United States to assess and evaluate the effects that environmental stressors such as contaminants have on the health of aquatic organisms, populations, and communities.

Canada's Aquatic Environments was produced by the CyberNatural Software Group at the University of Guelph. We are dedicated to the improvement of educational materials available to schools, postsecondary institutions, and the general public through the use of interactive digital media.

An aquatic ecosystem is a group of interacting organisms dependent on one another and their water environment for nutrients (e.g., nitrogen and phosphorus) and shelter. Familiar examples are ponds, lakes and rivers, but aquatic ecosystems also include areas such as floodplains and wetlands, which are flooded with water for all or only parts of the year. Seemingly inhospitable aquatic ecosystems can sustain life.