The North American Native Fishes Association - http://www.nanfa.org/ Group's goal is to bring together professional and amateur aquarists, educators, students, anglers, fish and wildlife officials, and researchers in conservation efforts of the inhabitants of lakes and streams.
South Florida Aquatic Plant Management Society - http://www.sfapms.org Non-profit organization with interests in aquatic weed and plant management, growth of aquatic plants, and restoration of wetlands.
The Baltic Marine Biologists - http://www.smf.su.se/bmb/ An international non-governmental scientific organization whose aim is to promote studies on the biological diversity, structure, function and sustainable management of the ecosystems of the Baltic Sea Area (the Baltic Sea, Belt Seas, Ă–resund and Kattegat).
Pacific Streamkeepers Federation - http://www.pskf.ca/ A non-profit society helping streamkeepers take action through support, education, and building partnerships
Help build the largest human-edited
directory on the web.