LakeNet is a global network of more than 1000 people and organizations in 100+ countries working for the conservation and sustainable management of lakes. The LakeNet Secretariat is a U.S.-based nonprofit organization dedicated to bringing together people and solutions to protect and restore the health of the world's lakes.

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.

The coastal zone of Belize is a complex system comprised of the barrier reef, the three offshore atolls, hundreds of patch reefs, extensive seagrass beds, mangrove forests, and over 1,000 cayes.

CoralRealm is a place to learn about coral reef. Whether you're a scuba diving enthusiast, an adventurer, a naturalist, aquarist, a scholar or a virtual traveler, CoralRealm offers you marine life feature articles, species descriptions, professional underwater photography, video clips and other resources that you won't find on any other web site.

Global Coral Reef Alliance, GCRA, a non-profit organization. GCRA is a coalition of volunteer scientists, divers, environmentalists and other individuals and organizations, committed to coral reef preservation. We primarily focus on coral reef restoration, marine diseases and other issues caused by global climate change, environmental stress and pollution.

Ocean Science Foundation, Inc. A Non-profit Entity Dedicated to Research on endangered tropical marine ecosystems & coral reefs.

The Columbia Kootenay Fisheries Renewal Partnership is dedicated to fish habitat conservation and restoration in the Canadian Columbia River basin, the Kootenay region of British Columbia.

NWFSC - Northwest Fisheries Science Center Home Page. The NWFSC studies living marine resources (e.g., salmon, groundfish, and killer whales) and their habitats in the Northeast Pacific Ocean-primarily off the coasts of Washington and Oregon and in freshwater rivers and streams in Washington, Oregon, Idaho, and Montana.

The WorldFish Center is an autonomous, nonprofit organization, and was established as an international center in 1977. The Center is an operational entity with programs funded by grants from private foundations and governments. The 15 research centers, in total, all have the same overarching mission: to contribute to food security and poverty eradication in developing countries through research, partnership, capacity building, and policy support, so promoting sustainable agricultural development based on the environmentally sound management of natural resources.

The New York State Federation of Lake Associations, Inc. (NYSFOLA) was founded in 1983 by a small consortium of lake associations concerned about a variety of problems facing their lakes. Water quality was of concern to nearly all of the lakes, and there was little information available on methods to combat the increasing presence of aquatic invasive species.