• Recreation: Outdoors: Fishing: River Restoration  (65)
• Science: Agriculture: Fisheries: Anadromous and Stream Fish  (18)
• Science: Biology: Ecology: Aquatic Ecology: Estuarine  (37)
• Science: Biology: Ecology: Aquatic Ecology: Marine  (70)
• Science: Biology: Ecology: Ecosystems: Coastal  (2)
• Science: Biology: Ecology: Ecosystems: Wetlands  (20)
• Science: Environment: Water Resources: Rivers and Streams  (85)
• Society: Issues: Environment: Conservation and Endangered Species: Ecosystems and Habitats: Rivers, Lakes and Watersheds  (3)

• Environmental Management of Drinking Water - University of Victoria research program researching the limnology and ecology of water-supply reservoirs in British Columbia, Canada.
• LakeNet - A global network of people and organizations working for the conservation and sustainable management of lakes. Information on threats to lakes, promising strategies, electronic forum and links to lake-specific sites.
• The New York State Federation of Lake Associations - Information about a variety of topics related to water quality, fisheries, and ecosystem health in this state's lakes, reservoirs, ponds, and other surface water resources.

Help build the largest human-edited directory on the web. Submit a Site - Open Directory Project - Become an Editor